Patent Application
20110223347
The subject matter of the present application is related to the subject matter of the following commonly assigned, co-pending applications:
U.S. Application entitled “Presensitizing Films Using a Pipeline Process” and naming Deanna McMillen, as inventor(s); and
U. S. Application entitled “Processing Films Using a Symmetric Head Assembly” and naming Deanna McMillen, as inventor(s).
The above-referenced patents and/or patent applications are hereby incorporated by reference herein in their entirety.
The invention relates generally to the field of recording information in films.
In one respect, disclosed is a method for presensitizing film, the method comprising causing a presensitization effect on a region of a film, the presensitization effect, as a function of time, exhibiting a presensitization effect peak after a peak time from an initiation of the presensitization effect, and exposing, after a delay time, substantially the same region of the film to a spectrum of information-containing electromagnetic radiation, the presensitization effect at the delay time being substantially equal to the presensitization effect peak.
In another respect, disclosed is a system for presensitizing a film prior to recording information, the system comprising one or more processors, one or more memory units coupled to the one or more processors, one or more presensitizers coupled to the one or more processors and one or more recording electromagnetic sources coupled to the one or more processors, the system being configured to cause the one or more presensitizers to cause a presensitization effect on a region of the film, the presensitization effect, as a function of time, exhibiting a presensitization effect peak after a peak time from an initiation of the presensitization effect, and cause the one or more recording electromagnetic sources to expose, after a delay time, substantially the same region of the film to a spectrum of information-containing electromagnetic radiation, the presensitization effect at the delay time being substantially equal to the presensitization effect peak.
In yet another respect, disclosed is a computer program product embodied in a computer-operable medium, the computer program product comprising logic instructions, the logic instructions being effective to cause a presensitization effect on a region of a film, the presensitization effect, as a function of time, exhibiting a presensitization effect peak after a peak time from an initiation of the presensitization effect, and cause one or more recording electromagnetic sources to expose, after a delay time, substantially the same region of the film to a spectrum of information-containing electromagnetic radiation, the presensitization effect at the delay time being substantially equal to the presensitization effect peak.
Numerous additional embodiments are also possible.
Other objects and advantages of the invention may become apparent upon reading the detailed description and upon reference to the accompanying drawings.
While the invention is subject to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and the accompanying detailed description. It should be understood, however, that the drawings and detailed description are not intended to limit the invention to the particular embodiments. This disclosure is instead intended to cover all modifications, equivalents, and alternatives falling within the scope of the present invention as defined by the appended claims.
One or more embodiments of the invention are described below. It should be noted that these and any other embodiments are exemplary and are intended to be illustrative of the invention rather than limiting. While the invention is widely applicable to different types of systems, it is impossible to include all of the possible embodiments and contexts of the invention in this disclosure. Upon reading this disclosure, many alternative embodiments of the present invention will be apparent to persons of ordinary skill in the art.
In some embodiments, a presensitization effect is caused on a region of the film, the presensitization effect, as a function of time, exhibiting a presensitization effect peak after a peak time from the initiation of the presensitization effect. After a delay time, substantially the same region of the film is exposed, to a spectrum of information-containing electromagnetic radiation, the presensitization effect at the delay time being substantially equal to the presensitization effect peak.
In some embodiments, the presensitization effect on the region of the film is caused by exposure to a spectrum of presensitizing electromagnetic radiation. In alternative embodiments, the presensitization effect on the region of the film is caused by exposure to one or more presensitizing chemicals. In yet other embodiments, the presensitization effect on the region of the film is caused by exposure to a presensitizing pattern of heat, by removing heat, or by applying moisture.
In alternative embodiments, additional regions of the film are exposed to a spectrum of presensitizing electromagnetic radiation in a presensitizing scanning pattern. After the delay time, substantially the additional regions of the film are exposed to an additional spectrum of corresponding information-containing electromagnetic radiation in a recording scanning pattern. In some embodiments, the presensitizing scanning pattern and/or recording scanning pattern can be performed in a boustrophedotic fashion, moving to the right, for example, along one row of regions on the film before reversing direction to move to the left for the subsequent row of regions on the film. Refer to the description of
In other embodiments, the delay time between exposing additional regions of the film to a spectrum of presensitizing electromagnetic radiation and exposing substantially the additional regions of the film to an additional spectrum of corresponding information-containing electromagnetic radiation is configured by calculating the respective speeds of and the physical separation between the presensitizing scanning head and the recording scanning head.
For example, in some embodiments, a particular delay may be achieved by configuring the presensitizing electromagnetic radiation exposure to scan across the film at a specific speed with a specific physical gap between the leading region exposed to presensitizing electromagnetic radiation and the trailing region exposed to the information-containing electromagnetic radiation.
In alternative embodiments, the aforementioned region and the additional regions may correspond to one or more hogels on the film. In some embodiments, presensitizing the film activates the region of the film causing the film to be more sensitive to exposure of the film to information-containing electromagnetic radiation.
In additional embodiments, the spectrum of presensitizing electromagnetic radiation is configured with a predetermined power and area to deliver a predetermined amount of presensitizing energy density to the region over a predetermined amount of time, and where the spectrum of information-containing electromagnetic radiation is configured with a predetermined power and area to deliver a predetermined amount of recording energy density to the region over a predetermined amount of time.
In some embodiments, for example, the energy densities of the spectrum of presensitizing electromagnetic radiation and of the spectrum of information-containing electromagnetic radiation can be modulated both spatially and temporally in order to maximize the desired presensitization effect and the quality of the resultant recording.
In alternative embodiments, a system for presensitizing a film according to the methods described in [¶21] comprises one or more of the following components:
In some embodiments, the presensitizing and recording system described in [¶27] may comprise software as well as hardware, such as one or more standard computer processing units (CPUs), digital signal processors (DSPs), and/or application-specific integrated circuits (ASICs).
In alternative embodiments, the presensitizing electromagnetic radiation sources and recording electromagnetic sources in the presensitizing and recording system described in [¶27] correspond to lasers, light-emitting diodes (LEDs), etc.
In additional embodiments, the process of presensitizing and then recording a film can be implemented using a computer program product embodied in a computer-operable medium, the computer program product comprising logic instructions, the logic instructions being effective to implement the methods described in [¶21]. In alternative embodiments, the computer program product is stored on one or more storage devices and/or storage media, such as computer volatile memory, computer hard disk drives, USB flash drives, CDs, DVDs, etc.
Those of skill will appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Those of skill in the art may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In some embodiments, the system could comprise a system controller 110 (which itself could comprise one or more processors 120 and one or more memory units 130), one or more presensitizers 110, one or more recording EM radiation sources 150, all of which are directly or indirectly coupled together through a system bus 160.
In additional embodiments, the system is operative to presensitize and then record information on one or more regions such as region 180 of a film 170 according to the methods illustrated in
In some embodiments, presensitizers 140 may be configured to expose region 180 to electromagnetic radiation, heat, moisture, chemicals, etc. in order to achieve presensitization of the region.
In some embodiments, the system could comprise a system controller 210 (which itself could comprise one or more processors 220 and one or more memory units 230), one or more left-side presensitizing EM radiation sources 240, one or more left-side recording EM radiation sources 245, one or more right-side presensitizing EM radiation sources 250, one or more right-side recording EM radiation sources 255, all of which are directly or indirectly coupled together through a system bus 260.
In additional embodiments, the system operates to presensitize and then record information on one or more regions of a film 265 according to the methods illustrated in
In some embodiments, when the last region of row N has been processed, processing proceeds to the next row, row N+1, whereupon the scanning direction is reversed, to the new row N+1 scanning direction 290. In a similar fashion, the right-side presensitizing EM radiation source 250 exposes the row N+1 presensitized region 280 while, after the appropriate delay time, the right -side recording EM radiation source 255 records information in the row N+1 recorded region 280, which was previously presensitized. Processing continues for the remaining rows until the entirety (or at least the desired portion) of the film 265 has been presensitized and then recorded.
It should be noted that the boustrophedotic scanning pattern described above is only one possible scanning pattern. Numerous other scanning patterns, modulated both spatially and temporally, could be applied, provided that the presensitization is applied with an appropriate delay time prior to the actual recording.
Additionally, in some embodiments, a single presensitizing EM radiation source could be shared, serving as both the left-side presensitizing EM radiation source 240 and the right-side presensitizing EM radiation source 250. Similarly, in alternative embodiments, a single recording EM radiation source could be shared, serving as both the left-side recording EM radiation source 245 and the right-side recording EM radiation source 255.
In some embodiments, head assembly 310 comprising 2N+1 heads may be configured to apply N processes to regions of a film boustrophedoticly (bidirectionally). In some embodiments, head assembly 310 comprises N-1 left heads HL2-HLN, center head if 1, and right heads HR2-HR N. Head if , is configured to effect a corresponding process P1, heads HL2 and HR2 are configured to effect a corresponding process P2, heads HL3 and HR 3 are configured to effect a corresponding process P3, etc.
In some embodiments, when head assembly 310 moves from left to right with respect to the regions on the film, only the left heads and the center head are active. For a particular region on the film, the heads may be activated in the order HCt, HL2, . . . , HLZ, ..., HLN as the head assembly moves across the region, thereby effecting the corresponding processes P1, . . . , PN on that region of the film.
In some embodiments, when head assembly 310 moves from right to left with respect to the regions on the film, only the right heads and the center head are active. For a particular region on the film, the heads may be activated in the order HC1, HR2, . . . HRN as the head assembly moves across the region, thereby effecting the corresponding processes P1, . . , PN on that region of the film.
In some embodiments, using this method and head assembly, the same processes may be effected on regions of the film in the same order regardless of the direction in which the head assembly is moving with respect to the film and without the need to rotate the head assembly.
In some embodiments, the method illustrated in
In some embodiments, the presensitization effect on the region of the film is caused at block 410 by exposure to a spectrum of presensitizing electromagnetic radiation. In alternative embodiments, the presensitization effect on the region of the film is caused at block 410 by exposure to one or more presensitizing chemicals. In yet other embodiments, the presensitization effect on the region of the film is caused at block 410 by exposure to a presensitizing pattern of heat, removal of heat or the application of moisture.
At block 420, after a delay time, substantially the same region of the film is exposed to a spectrum of information-containing electromagnetic radiation, the presensitization effect at the delay time being substantially equal to the presensitization effect peak. Processing subsequently ends at 499.
In some embodiments, the method illustrated in
At block 530, a presensitization effect is caused on a region of the film, the presensitization effect, as a function of time, exhibiting a presensitization effect peak after a peak time from the initiation of the presensitization effect.
In some embodiments, the presensitization effect on the region of the film is caused at block 530 by exposure to a spectrum of presensitizing electromagnetic radiation.
In alternative embodiments, the presensitization effect on the region of the film is caused at block 530 by exposure to one or more presensitizing chemicals.
In yet other embodiments, the presensitization effect on the region of the film is caused at block 530 by exposure to a presensitizing pattern of heat.
At block 540, further processing is suspended for a delay time such that the presensitization effect at the delay time is substantially equal to the presensitization effect peak.
At block 550, following the delay time, substantially the same region of the film is exposed to a spectrum of information-containing electromagnetic radiation. Processing then returns to decision 510.
Returning to decision 510, if there are no remaining regions to be exposed, decision 510 branches to the “No” branch, whereupon processing subsequently ends at 599.
In some embodiments, the method illustrated in
In some embodiments, the presensitization effect on the region of the film is caused at block 610 by exposure to a spectrum of presensitizing electromagnetic radiation.
In alternative embodiments, the presensitization effect on the region of the film is caused at block 610 by exposure to one or more presensitizing chemicals.
In yet other embodiments, the presensitization effect on the region of the film is caused at block 610 by exposure to a presensitizing pattern of heat, removal of heat, application of moisture, etc.
If there are additional regions to be exposed, decision 620 branches to the two parallel “Yes” branches where processing moves substantially simultaneously to block 630a, whereupon the presensitizing process advances to the next region, and to block 630b, whereupon the recording process is suspended for a delay time such that the presensitization effect at the delay time is substantially equal to the presensitization effect peak.
At block 640, following the delay time, substantially the same (now-presensitized) region of the film is exposed to a spectrum of information-containing electromagnetic radiation.
Upon completion of block 630a, processing returns to block 610.
Returning to decision 620, if there are no remaining regions to be exposed, decision 610 branches to the “No” branch, whereupon at block 650, the final, presensitized region of the film is exposed to a spectrum of information-containing electromagnetic radiation. Processing subsequently ends at 699.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The benefits and advantages that may be provided by the present invention have been described above with regard to specific embodiments. These benefits and advantages, and any elements or limitations that may cause them to occur or to become more pronounced are not to be construed as critical, required, or essential features of any or all of the claims. As used herein, the terms “comprises,” “comprising,” or any other variations thereof, are intended to be interpreted as non-exclusively including the elements or limitations which follow those terms. Accordingly, a system, method, or other embodiment that comprises a set of elements is not limited to only those elements, and may include other elements not expressly listed or inherent to the claimed embodiment.
While the present invention has been described with reference to particular embodiments, it should be understood that the embodiments are illustrative and that the scope of the invention is not limited to these embodiments. Many variations, modifications, additions and improvements to the embodiments described above are possible. It is contemplated that these variations, modifications, additions and improvements fall within the scope of the invention as detailed within the following claims.
