The embodiments herein relate, in general, to storing media. More particularly, the embodiments relate to a storing medium with undifferentiated visual aspect.
A storing medium typically has a plurality of regions. Some of these regions may be used to store information. Such regions are hereinafter referred to as ‘information-storing regions’. On the other hand, at least one region may form a portion with which devices may hold the storing medium. Such a region is hereinafter referred to as a ‘holding region’. In various types of storing media, holding regions generally appear different from information-storing regions. In most cases, holding regions are generally transparent, while information-storing regions are opaque.
In light of the foregoing discussion, there is a need for a storing medium that has an undifferentiated visual aspect, and is visually appealing.
An embodiment is to provide a storing medium with undifferentiated visual aspect (and manufacturing and printing methods and systems thereof).
Another embodiment is to provide the storing medium that is visually appealing.
Embodiments herein provide a storing medium with undifferentiated visual aspect. The storing medium includes a base substrate and a print substrate onto which one or more labels can be printed. The base substrate includes a first region formed between a first inner periphery and a first outer periphery, and a second region formed between a second inner periphery and a second outer periphery. The second inner periphery is smaller than the first inner periphery, and the second outer periphery is smaller than the first outer periphery. In an embodiment herein, the second outer periphery substantially overlaps the first inner periphery.
The first region is capable of storing information, and includes one or more first tracks capable of tracking a light beam. The first tracks have a first set of undulations formed thereon. The second region includes one or more second tracks capable of tracking a light beam. The second tracks are formed up to a pre-defined periphery from the second outer periphery, where the pre-defined periphery substantially lies at the second inner periphery or between the second inner periphery and the second outer periphery. The second tracks have a second set of undulations formed thereon. The base substrate appears substantially visually undifferentiated across a region spanning up to the pre-defined periphery from the first outer periphery.
The print substrate is attached to the base substrate. A label printed onto the print substrate appears substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
In accordance with an embodiment herein, the first tracks are substantially similar to the second tracks.
In accordance with an embodiment herein, the first set of undulations is substantially similar to the second set of undulations. In accordance with another embodiment herein, the first set of undulations is different from the second set of undulations.
As mentioned above, the storing medium so manufactured appears substantially visually undifferentiated across the region spanning up to the pre-defined periphery from the first outer periphery. Moreover, a label printed onto the storing medium appears substantially visually undifferentiated across the first region and the second region. This provides the storing medium an undifferentiated visual aspect, and makes it visually appealing.
Embodiments herein will hereinafter be described in conjunction with the appended drawings provided to illustrate and not to limit the scope of the claims, wherein like designations denote like elements, and in which:
As used in the specification and claims, the singular forms “a”, “an” and “the” include plural references unless the context clearly dictates otherwise. For example, the term “a storing medium” may include a plurality of storing media unless the context clearly dictates otherwise. A term having “-containing” such as “metal-containing” contains a metal but is open to other substances, but need not contain any other substance other than a metal.
Embodiments herein provide a storing medium with undifferentiated visual aspect, a method and system for manufacturing a storing medium, and a method and system for printing on a storing medium. In the description of the embodiments herein, numerous specific details are provided, such as examples of components and/or mechanisms, to provide a thorough understanding of embodiments herein. One skilled in the relevant art will recognize, however, that an embodiment herein can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, methods, components, materials, parts, and/or the like. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments herein.
The storing medium includes a base substrate and a print substrate onto which one or more labels can be printed. The base substrate includes a first region and a second region. The first region is formed between a first inner periphery and a first outer periphery, while the second region is formed between a second inner periphery and a second outer periphery. The second inner periphery is smaller than the first inner periphery, and the second outer periphery is smaller than the first outer periphery. In an embodiment herein, the second outer periphery substantially overlaps the first inner periphery.
The first region is capable of storing information, and includes one or more first tracks capable of tracking a light beam. The first tracks have a first set of undulations formed thereon. The second region includes one or more second tracks capable of tracking a light beam. The second tracks are formed up to a pre-defined periphery from the second outer periphery. The pre-defined periphery substantially lies at the second inner periphery or between the second inner periphery and the second outer periphery. The first inner periphery, the first outer periphery, the second inner periphery, the second outer periphery and the pre-defined periphery are hereinafter referred to as the peripheries. The second tracks have a second set of undulations formed thereon.
The base substrate appears substantially visually undifferentiated across a region spanning up to the pre-defined periphery from the first outer periphery, in accordance with an embodiment herein.
The print substrate is attached to the base substrate. A label printed onto the print substrate appears substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery. The print substrate may, for example, be made of paper, plastic, polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVOH), polyvinyl acetate (PVA), polymers, synthetic resins, or combinations thereof.
It should be noted here that the base substrate appears substantially visually undifferentiated when seen through a naked eye or an optical device. This holds true even when one or more labels are printed onto the print substrate. As mentioned above, a region is said to be visually undifferentiated when it has substantially the same intensity of whiteness across the region. The intensity of whiteness may, for example, be measured in terms of the Lab color space, using a modified form of spectrophotometer. An example of such a spectrophotometer is the Gretag-Macbeth spectroscan.
In addition, the base substrate may include one or more information-storing layers formed over the first tracks and the second tracks, a shiny coat formed over the information-storing layers, and a protecting coat formed over the shiny coat. The information-storing layers enable storing of information on the storing medium. The information-storing layers may, for example, be made of cyanine, phthalocyanine, azo compounds, formazan, metals, metal-containing compounds, or combinations thereof. The shiny coat shines off a light beam falling on the storing medium, and therefore, aids in tracking of the light beam. The shiny coat may, for example, be made of metals, metallic alloys, metal-containing compounds, or combinations thereof. The protecting coat protects the storing medium from external factors, such as scratches or dirt. The protecting coat may, for example, be made of a lacquer or a resin.
Storing media may be of any desired type, shape and size. Examples of storing media include, but are not limited to, Compact Discs (CDs), Digital Versatile Discs (DVDs), High-Definition DVDs (HD-DVDs), High-Definition Versatile Discs (HVDs), Blu-ray Discs (BDs), MiniDiscs (MDs), Universal Media Discs (UMDs), and Laser Discs (LDs). Accordingly, the peripheries may be of any desired shape and size. In one example, the peripheries may be circular in shape, and may be in the form of concentric circles arranged one within another. In another example, the peripheries may be square in shape, and may be in the form of squares arranged one within another. In yet another example, the peripheries may have different shapes.
In accordance with an embodiment herein, the first tracks are substantially similar to the second tracks. In such a case, the second tracks in the second region are a continuation of the first tracks in the first region.
In accordance with an embodiment herein, the first set of undulations is substantially similar to the second set of undulations. In such a case, the first set of undulations and the second set of modulations are modulated by the same modulation technique. In accordance with another embodiment herein, the first set of undulations is different from the second set of undulations. In such a case, the first set of undulations and the second set of modulations are modulated by different modulation techniques. Examples of modulation techniques are, but not limited to, a Quadrature Phase Shift Keying (QPSK) modulation, a frequency modulation, an amplitude modulation, a Modified Amplitude Modulation (MAM), a phase modulation, a Minimum Shift Keying (MSK) modulation, and a Saw Tooth Wobble (STW) modulation.
First region 202 is capable of storing information, and includes one or more first tracks (not shown in
Second region 204 includes one or more second tracks (not shown in
With reference to
The base substrate appears substantially visually undifferentiated across a region spanning up to pre-defined periphery 214 from first outer periphery 208, as shown in
The print substrate is attached to the base substrate. A label printed onto the print substrate appears substantially visually undifferentiated across first region 202 and second region 204, due to formation of the first tracks and the second tracks up to pre-defined periphery 214 from first outer periphery 208. The print substrate may, for example, be made of paper, plastic, PVP, PVOH, PVA, polymers, synthetic resins, or combinations thereof.
It should be noted here that the base substrate appears substantially visually undifferentiated when seen through a naked eye or an optical device. This holds true even when one or more labels are printed onto the print substrate.
In addition, the base substrate may include one or more information-storing layers (not shown in
Storing medium 200 may be of any desired type, shape and size. Examples of storing medium 200 include, but are not limited to, CDs, DVDs, HD-DVDs, HVDs, BDs, MDs, UMDs, and LDs. Storing medium 200 may, for example, be recordable, re-writable, read-only memory, or random access memory. Accordingly, first inner periphery 206, first outer periphery 208, second inner periphery 210, second outer periphery 212 and pre-defined periphery 214 may be of any desired shape and size. For example, first inner periphery 206, first outer periphery 208, second inner periphery 210, second outer periphery 212 and pre-defined periphery 214 may each have different shapes, as opposed to the same circular shape shown in
The first tracks and the second tracks may, for example, be in the form of a continuous spiral track. An optical drive may be used to read and/or write information from and/or onto storing medium 200. The optical drive may, for example, include a light source for generating a light beam, a light guide for guiding the light beam on the spiral track, and a light detector for detecting the reflection of the light beam off storing medium 200. Alternatively, the first tracks and the second tracks may be in the form of a plurality of concentric tracks. Accordingly, the light guide may be adapted to guide the light beam on the concentric tracks.
In accordance with an embodiment herein, the first tracks are substantially similar to the second tracks. In such a case, the second tracks in second region 204 are a continuation of the first tracks in first region 202.
In accordance with an embodiment herein, the first set of undulations is substantially similar to the second set of undulations. In such a case, the first set of undulations and the second set of modulations are modulated by the same modulation technique. In accordance with another embodiment herein, the first set of undulations is different from the second set of undulations. In such a case, the first set of undulations and the second set of modulations are modulated by different modulation techniques. Examples of modulation techniques are, but not limited to, a QPSK modulation, a frequency modulation, an amplitude modulation, an MAM, a phase modulation, an MSK modulation, and an STW modulation.
With reference to
As mentioned above, the base substrate appears substantially visually undifferentiated across a region spanning up to pre-defined periphery 302 from first outer periphery 208, that is, the entirety of first region 202 and second region 204, as shown in
Storing medium 300 may be of any desired shape and size. Accordingly, first inner periphery 206, first outer periphery 208, second inner periphery 210, second outer periphery 212 and pre-defined periphery 302 may be of any desired shape and size. For example, first inner periphery 206, first outer periphery 208, second inner periphery 210, second outer periphery 212 and pre-defined periphery 302 may each have different shapes, as opposed to the same circular shape shown in
First region 402 is capable of storing information, and includes one or more first tracks (not shown in
Second region 404 includes one or more second tracks (not shown in
The base substrate appears substantially visually undifferentiated across a region spanning up to pre-defined periphery 414 from first outer periphery 408, as shown in
The print substrate is attached to the base substrate. A label printed onto the print substrate appears substantially visually undifferentiated across first region 402 and second region 404, due to formation of the first tracks and the second tracks up to pre-defined periphery 414 from first outer periphery 408. The print substrate may, for example, be made of paper, plastic, PVP, PVOH, PVA, polymers, synthetic resins, or combinations thereof.
It should be noted here that the base substrate appears substantially visually undifferentiated when seen through a naked eye or an optical device. This holds true even when one or more labels are printed onto the print substrate.
In addition, the base substrate may include one or more information-storing layers (not shown in
Storing medium 400 may be of any desired type, shape and size. Storing medium 400 may, for example, be recordable, re-writable, read-only memory, or random access memory. Accordingly, first inner periphery 406, first outer periphery 408, second inner periphery 410, second outer periphery 412 and pre-defined periphery 414 may be of any desired shape and size. With reference to
The first tracks and the second tracks may, for example, be in the form of a continuous square-shaped track. An optical drive may be used to read and/or write information from and/or onto storing medium 400. The optical drive may, for example, include a light source for generating a light beam, a light guide adapted to guide the light beam on the square-shaped track, and a light detector for detecting the reflection of the light beam off storing medium 400. Alternatively, the first tracks and the second tracks may be in the form of a plurality of square tracks. Accordingly, the light guide may be adapted to guide the light beam on the square tracks.
In accordance with an embodiment herein, the first tracks are substantially similar to the second tracks. In such a case, the second tracks in second region 404 are a continuation of the first tracks in first region 402.
In accordance with an embodiment herein, the first set of undulations is substantially similar to the second set of undulations. In such a case, the first set of undulations and the second set of modulations are modulated by the same modulation technique. In accordance with another embodiment herein, the first set of undulations is different from the second set of undulations. In such a case, the first set of undulations and the second set of modulations are modulated by different modulation techniques. Examples of modulation techniques are, but not limited to, a QPSK modulation, a frequency modulation, an amplitude modulation, an MAM, a phase modulation, an MSK modulation, and an STW modulation.
With reference to
Storing medium 500 may be of any desired shape and size. Accordingly, first inner periphery 406, first outer periphery 408, second inner periphery 410, second outer periphery 412 and pre-defined periphery 502 may be of any desired shape and size. With reference to
Wobbled groove-containing surface 604 includes grooves that are modulated to a predetermined frequency. Wobbled groove-containing surface 604, information-storing layer 606, shiny coat 608, protecting coat 610 and printed material 612 are located over both a hub area and a data area of storing medium 600. The hub area contains no data and is located surrounding a central hole in storing medium 600.
Printed material 612 appears substantially visually undifferentiated from the hub area to the data area of storing medium 600.
An arrow 614 represents the direction of a light beam falling on storing medium 600. The light beam shines off shiny coat 608, and is received by a light detector. This enables tracking of the light beam on storing medium 600.
In accordance with another embodiment herein, a storing medium includes a base substrate including a wobbled groove-containing surface, a shiny coat on the wobbled groove-containing surface, and a printed material on the shiny coat. The wobbled groove-containing surface, the shiny coat and the printed material are located over both a hub area and a data area of the storing medium. The hub area contains no data and is located surrounding a central hole in the storing medium. The wobbled groove-containing surface includes grooves that are modulated to a predetermined frequency. The printed material appears substantially visually undifferentiated from the hub area to the data area of the storing medium.
Stamping module 702 is adapted to stamp a base substrate. The base substrate includes a first region formed between a first inner periphery and a first outer periphery, and a second region formed between a second inner periphery and a second outer periphery. The second inner periphery is smaller than the first inner periphery, and the second outer periphery is smaller than the first outer periphery. The base substrate may, for example, be made of a polycarbonate or a plastic.
Stamp 704 is adapted to form one or more first tracks in the first region, and form one or more second tracks up to a pre-defined periphery from the second outer periphery in the second region. As mentioned above, the pre-defined periphery substantially lies at the second inner periphery or between the second inner periphery and the second outer periphery. The first tracks have a first set of undulations formed thereon, while the second tracks have a second set of undulations formed thereon.
The base substrate appears substantially visually undifferentiated across a region spanning up to the pre-defined periphery from the first outer periphery.
Stamp 704 may, for example, be an injection mold adapted to stamp a base substrate with a plurality of regions, and form tracks thereon. In order to manufacture storing media of different shapes and/or sizes, separate stamps are required to be designed. For example, two separate stamps are required to manufacture storing medium 200 and storing medium 300, as storing medium 200 and storing medium 300 have different pre-defined peripheries, namely pre-defined periphery 214 and pre-defined periphery 302. In another example, two separate stamps are required for manufacturing storing medium 300 and storing medium 500, as storing medium 300 and storing medium 500 have different shapes.
Attaching module 706 is adapted to attach a print substrate to the base substrate. The print substrate may, for example, be made of paper, plastic, PVP, PVOH, PVA, polymers, synthetic resins, or combinations thereof. A label printed onto the print substrate appears substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
Attaching module 706 may, for example, be a layer-forming module that forms a thin layer of a printable material over the base substrate. Alternatively, attaching module 706 may be a bonding module that bonds the print substrate with the base substrate with the use of an adhesive.
In addition, system 700 may also include a layering module for forming one or more information-storing layers over the first tracks and the second tracks, a shine-coating module for coating a shiny coat over the information-storing layers, and a protection-coating module for coating a protecting coat over the shiny coat.
The number of information-storing layers may, for example, depend on the type of a storing medium to be manufactured. As mentioned above, the information-storing layers may, for example, be made of cyanine, phthalocyanine, azo compounds, formazan, metals, metal containing compounds, or combinations thereof.
The shine-coating module may, for example, perform sputtering over the information-storing layers to form a thin coat of a shiny material. The shiny material may, for example, be a metal, a metallic alloy, a metal-containing compound, or a combination thereof.
The protection-coating module may, for example, perform spin coating to form the protecting coat. The protecting coat may, for example, be made of a lacquer or a resin.
Various embodiments herein provide a system for manufacturing a storing medium. The system includes stamping means for stamping a base substrate. As mentioned above, the base substrate includes a first region formed between a first inner periphery and a first outer periphery, and a second region formed between a second inner periphery and a second outer periphery. The second inner periphery is smaller than the first inner periphery, and the second outer periphery is smaller than the first outer periphery.
The stamping means includes a stamp adapted to form one or more first tracks in the first region, and form one or more second tracks up to a pre-defined periphery from the second outer periphery in the second region. The pre-defined periphery substantially lies at the second inner periphery or between the second inner periphery and the second outer periphery. The first tracks have a first set of undulations formed thereon, and the second tracks have a second set of undulations formed thereon. The base substrate appears substantially visually undifferentiated across a region spanning up to the pre-defined periphery from the first outer periphery.
The system further includes attaching means for attaching a print substrate to the base substrate. A label printed onto the print substrate appears substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
An example of the stamping means is, but not limited to, stamping module 702. An example of the attaching means is, but not limited to, attaching module 706.
At step 802, a base substrate is stamped. The base substrate so stamped includes a first region formed between a first inner periphery and a first outer periphery, and a second region formed between a second inner periphery and a second outer periphery. The second inner periphery is smaller than the first inner periphery, and the second outer periphery is smaller than the first outer periphery. The base substrate may, for example, be made of a polycarbonate or a plastic. In accordance with step 802, one or more first tracks are formed in the first region, while one or more second tracks are formed up to a pre-defined periphery from the second outer periphery in the second region. The pre-defined periphery substantially lies at the second inner periphery or between the second inner periphery and the second outer periphery. The first tracks have a first set of undulations formed thereon, while the second tracks have a second set of undulations formed thereon. The base substrate appears substantially visually undifferentiated across a region spanning up to the pre-defined periphery from the first outer periphery.
At step 804, a print substrate is attached to the base substrate. The print substrate may, for example, be made of paper, plastic, PVP, PVOH, PVA, polymers, synthetic resins, or combinations thereof. Step 804 may, for example, involve forming a thin layer of a printable material over the base substrate. Alternatively, step 804 may involve adhesive bonding the print substrate with the base substrate.
A label printed onto the print substrate appears substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
It should be noted here that steps 802-804 are only illustrative and other alternatives can also be provided where steps are added, one or more steps are removed, or one or more steps are provided in a different sequence without departing from the scope of the claims herein. For example, one or more of the following steps may be added: the step of forming one or more information-storing layers over the first tracks and the second tracks, the step of coating a shiny coat over the information-storing layers, and the step of coating a protecting coat over the shiny coat.
At step 902, a base substrate of the storing medium is obtained. The base substrate includes a wobbled groove-containing surface and a shiny coat on the wobbled groove-containing surface. The wobbled groove-containing surface includes grooves that are modulated to a predetermined frequency. The base substrate may also include one or more information-storing layers.
At step 904, a printed material is printed on the shiny coat. Step 904 may, for example, involve forming a thin layer of a printing ink over the shiny coat.
The wobbled groove-containing surface, the shiny coat and the printed material are located over both a hub area and a data area of the storing medium. The hub area contains no data and is located surrounding a central hole in the storing medium. The printed material appears substantially visually undifferentiated from the hub area to the data area of the storing medium.
It should be noted here that steps 902-904 are only illustrative and other alternatives can also be provided where steps are added, one or more steps are removed, or one or more steps are provided in a different sequence without departing from the scope of the claims herein. For example, one or more of the following steps may be added: the step of forming one or more information-storing layers over the wobbled groove-containing surface, the step of coating a shiny coat over the information-storing layers, and the step of coating a protecting coat over the shiny coat.
Tray 1002 is adapted to receive and align the storing medium. Tray 1002 may, for example, extend to a first position in which the storing medium is received on tray 1002. Tray 1002 may then retract to a second position in which the storing medium is aligned for printing.
Print head 1004 is adapted to print one or more labels onto the print substrate of the storing medium. The labels so printed appear substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
Print head 1004 may, for example, be a movable part of an inkjet printer or a thermal printer.
During the process of printing, tray 1002 remains in the second position. Tray 1002 may later extend back to the first position, so that the storing medium may be removed from tray 1002 upon completion of printing.
System 1000 may, for example, be implemented in a personal computer or a laptop. A computer typically includes a processor for executing various programs, a display screen for displaying one or more user interfaces to a user, and one or more input devices for providing inputs from the user. The computer may, for example, include a device that is capable of printing labels onto storing media.
Tray 1102 is adapted to receive and align the storing medium. Tray 1102 may, for example, extend to a first position in which the storing medium is received on tray 1102. Tray 1102 may then retract to a second position in which the storing medium is aligned for printing.
Print head 1104 is adapted to print one or more labels onto the print substrate of the storing medium. The labels so printed appear substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
Print head 1104 may, for example, be a movable part of an inkjet printer or a thermal printer.
During the process of printing, tray 1102 remains in the second position. Tray 1102 may later extend back to the first position, so that the storing medium may be removed from tray 1102 upon completion of printing.
Writer 1106 is adapted to write information onto the storing medium. Reader 1108 is adapted to read information stored on the storing medium. Writer 1106 and reader 1108 may be implemented as a single unit that is capable of writing and reading information onto and from the storing medium.
System 1100 may, for example, be implemented in a personal computer or a laptop. A computer typically includes a processor for executing various programs, a display screen for displaying one or more user interfaces to a user, and one or more input devices for providing inputs from the user. The computer may, for example, include a single device that is capable of printing labels and writing information onto storing media.
As described earlier, a storing medium includes a base substrate and a print substrate onto which one or more labels can be printed. The base substrate includes a first region formed between a first inner periphery and a first outer periphery, and a second region formed between a second inner periphery and a second outer periphery. The second inner periphery is smaller than the first inner periphery, and the second outer periphery is smaller than the first outer periphery. One or more first tracks are formed in the first region, and one or more second tracks are formed up to a pre-defined periphery from the second outer periphery in the second region. The pre-defined periphery substantially lies at the second inner periphery or between the second inner periphery and the second outer periphery. The first tracks have a first set of undulations formed thereon, and the second tracks have a second set of undulations formed thereon. The print substrate is attached to the base substrate.
At step 1202, a storing medium is received. Subsequently, at step 1204, the storing medium is aligned. Consider, for example, that steps 1202-1204 are performed by tray 1002. As mentioned above, tray 1002 receives the storing medium in the first position, and aligns the storing medium in the second position.
At step 1206, one or more labels are printed onto the print substrate of the storing medium. Step 1206 may, for example, be performed by print head 1004. The labels so printed appear substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
It should be noted here that steps 1202-1206 are only illustrative and other alternatives can also be provided where steps are added, one or more steps are removed, or one or more steps are provided in a different sequence without departing from the scope of the claims herein.
As described earlier, a region is said to be visually undifferentiated when it has substantially the same intensity of whiteness across the region. In accordance with an embodiment herein, the intensity of whiteness is measured in terms of the Lab color space, using a modified form of spectrophotometer. An example of such a spectrophotometer is the Gretag-Macbeth spectroscan.
The intensity of whiteness may be measured with reference to a reference surface, which is considered to be absolute white (i.e., having a value of component ‘L’=100). For example, the relative luminance of a test surface of a storing medium may be calculated by comparing the luminance of the test surface and the reference surface. The intensity of whiteness may then be calculated using the cube root of the relative luminance.
In one implementation, the spectroscan measures the intensity of whiteness at various points on a test surface of a storing medium to be tested. This ensures that the test surface has the same intensity of whiteness across a hub area and a data area of the storing medium. In another implementation, the spectroscan measures the intensity of whiteness at one or more points on a hub area of a storing medium to be tested.
Table 1 is an exemplary table illustrating values of component ‘L’ measured across a plurality of storing media.
With reference to Table 1,
It can be observed that values of component ‘L’ fall in a range of 81 and 85 for hub areas of the storing media with differentiated visual aspect, while values of component ‘L’ fall in a range of 92 and 95 for hub areas of the storing media with undifferentiated visual aspect. Values of component ‘L’ fall in the same range of 92 and 95 for data areas of the storing media with undifferentiated visual aspect. Therefore, such storing media appear substantially visually undifferentiated across their hub areas and data areas.
Embodiments herein provide a storing medium with undifferentiated visual aspect. The storing medium includes a base substrate and a print substrate. The base substrate includes a first region formed between a first inner periphery and a first outer periphery, and a second region formed between a second inner periphery and a second outer periphery. The second inner periphery is smaller than the first inner periphery, and the second outer periphery is smaller than the first outer periphery. One or more first tracks are formed in the first region, and one or more second tracks are formed up to a pre-defined periphery from the second outer periphery in the second region. The pre-defined periphery substantially lies at the second inner periphery or between the second inner periphery and the second outer periphery. The first tracks have a first set of undulations formed thereon, and the second tracks have a second set of undulations formed thereon. The base substrate appears substantially visually undifferentiated across a region spanning up to the pre-defined periphery from the first outer periphery.
In addition, one or more labels printed onto the print substrate of the storing medium appear substantially visually undifferentiated across the first region and the second region, due to formation of the first tracks and the second tracks up to the pre-defined periphery from the first outer periphery.
The above features provide an undifferentiated visual aspect to the storing medium, and make the storing medium visually appealing.
Number | Date | Country | Kind |
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1564/CHE/2009 | Jul 2009 | IN | national |
This application is related to “Optical Discs with Uniform Appearance,” filed co-currently with this application, having Attorney Docket No. 074462-0379153, which is incorporated herein in its entirety by reference.