Patent Grant
10100996
This application is a U.S. National Stage Filing under 35 U.S.C. 371 from International Application No. PCT/CN2015/081438, filed on 15 Jun. 2015, and published as WO2015/192747 on Dec. 23, 2015, which claims the benefit of Chinese Patent Application No. 201410266767.9 filed on Jun. 16, 2014 in the State Intellectual Property Office of China, which applications and publication are incorporated herein by reference in their entirety.
Field of the Invention
The present disclosure relates to a light illuminating and signaling field, in particular, a light patterning device and an illuminating and/or signaling apparatus including the same.
Description of the Related Art
In a light illuminating or signaling application, customized requirements become more and more, and may need special light effects. For example, it may need to increase depth of field to form multilevel three dimensional optical effects. In particular, it may be desired that the illuminating or signaling light contains certain information or patterns to meet the customized requirements. However, in the conventional light illuminating or signaling apparatus, in particular, in a vehicle lamp for an automobile vehicle, there is no means for patterning the illuminating or signaling light. Therefore, it is desired to provide a device for patterning light, which can be integrated in the light illuminating or signaling apparatus, for example in a lamp.
An object of the present invention is to provide a light patterning device that can pattern the illuminating and/or signaling light by forming distinct bright and dark regions by reflective areas and light transmission areas on a reflective wall.
Another object of the present invention is to provide an illuminating and/or signaling apparatus which has the light patterning device and can achieve customized light effects.
An embodiment of the present invention provides light patterning device, comprising:
a light incidence portion located at a central position of the light patterning device at a first side thereof and configured to receive an incident light;
a first reflective wall adjoining the light incidence portion and extending towards a periphery of the light patterning device from the light incidence portion along the first side of the light patterning device, the first reflective wall having a first reflective area; and
a second reflective wall located at a second side opposed to the first side of the light patterning device and configured to be opposed to the light incidence portion and the first reflective wall, wherein the second reflective wall is provided with a light transmission area which is configured to at least partly transmit the light from the light incidence portion or the first reflective area out of the light patterning device so as to form a bright region and a second reflective area which is configured to at least partly reflect the light from the light incidence portion or the first reflective area towards the first reflective area of the first reflective wall so as to form a dark region, the first reflective area of the first reflective wall at least partly reflecting the light from the second reflective area of the second reflective wall towards the second reflective wall.
In an embodiment, the first reflective area of the first reflective wall and the second reflective area of the second reflective wall are oriented such that the light reflected between the first reflective area and the second reflective area in the light pattering device is directed gradually towards the periphery of the light patterning device.
In an embodiment, the first reflective area and the second reflective area are oriented such that the reflection of light at the first reflective area and the second reflective area meets the condition of total reflection.
In an embodiment, the light patterning device is a solid component in one piece.
In an embodiment, the light transmission area comprises a protrusion projecting towards the external of the light patterning device to form a pattern.
In an embodiment, the light transmission area comprises a light transmission ring at a peripheral position of the light patterning device or near the peripheral position thereof.
In an embodiment, an angle of inclination of the first reflective area and the second reflective area with respect to a central axis of the light patterning device is between 40 degrees and 50 degrees.
In an embodiment, the angle of inclination of the first reflective area and the second reflective area with respect to the central axis of the light patterning device is about 45 degrees.
In an embodiment, the light incidence portion is provided with a collimator configured to collimate the incident light.
In an embodiment, the first reflective wall is provided with at least two first reflective areas and a first spacing area for spacing adjacent first reflective areas from each other and that the second reflective wall is provided with at least two second reflective areas and a second spacing area for spacing adjacent second reflective areas from each other, wherein the first spacing area and the second spacing area extend substantially in a direction parallel to a central axis of the light patterning device.
An embodiment of the present invention provides an illuminating and/or signaling apparatus, comprising:
a light patterning device as described above; and
a light source configured to supply the light to the light incidence portion.
In an embodiment, the light source is located in the central axis of the light patterning device and outside of the first side of the light patterning device.
At least one above embodiments of the present invention can pattern an incident light by a reflective wall arrangement provided with light transmission areas and reflective areas. The light patterning device and the illumination and/or signaling apparatus according to the above embodiments may impart the illuminating and/or signaling light with customized pattern and information.
The embodiments of the present invention will be further explained below with reference to the figures and examples. Throughout the description, same or similar reference numbers indicate the same or similar members. The following embodiments along with the figures are only used to explain the general concept of the present invention, instead of being intended to limit the scope of the present invention.
In the light patterning device 100 according to the present disclosure, the incident light from the light incidence portion 1 is conducted in the light patterning device 100 while it is reflected between the first reflective area 21 of the first reflective wall 2 and the second reflective area 31 of the second reflective wall 3. The second reflective wall 3 functions to pattern the light and thus may be regarded as a patterning wall. The second reflective wall 3 is provided with the light transmission area 32 and the second reflective area 31. When viewed from the second side (e.g. left side in
In an example, the first reflective area 21 of the first reflective wall 2 and the second reflective area 31 of the second reflective wall 3 are oriented such that the light reflected between the first reflective area 21 and the second reflective area 31 is directed in the light patterning device 100 gradually towards the periphery 4 of the light patterning device 100. For example, as shown in
As an example, the first reflective area 21 and the second reflective area 31 may be oriented such that the reflection of light at the first reflective area 21 and the second reflective area 31 meets the condition of total reflection. For example, the first reflective area 21 and the second reflective area 31 are inclined at an angle between 40 degrees and 50 degrees, preferably about 45 degrees, with respect to a central axis 5 of the light patterning device 100. By means of the total reflection, the optical efficiency may be significantly improved and the optical loss may be reduced. In this way, the above contrast between the dark region and bright region can be improved to achieve clearer patterns while avoiding heat generation and reduction of power consumption. It should be noted that the light patterning device 100 according to an embodiment of the present invention may also be implemented by other means except the total reflection, for example, by providing another reflective layer such as a metal reflective layer.
In an example shown in
As an example, the light patterning device 100 may be a solid component in one piece. For example, it may be made from transparent materials such as resin, plastics, and glass. In this way, the light patterning device 100 may achieve a more compact structure and facilitate the manufacturing.
In an example, the light incidence portion 1 is provided with a collimator 11 configured to collimate the incident light 10. Collimation to the incident light contributes to controlling the optical path of the light in the light patterning device 100 in design. Certainly, it is not necessary, for example, if the incident light has been collimated itself, the collimator 11 may not be provided. Further, it is not necessary for the incident light to be collimated. For the uncollimated incident light, the function for patterning may also be achieved basically by reasonable design of parameters of the first reflective wall 2 and the second reflective wall 3.
In an example, the first reflective wall 2 may be provided with at least two first reflective areas 21 and a first spacing area 22 for spacing adjacent first reflective areas 21 from each other. Correspondingly, the second reflective wall 3 may also be provided with at least two second reflective areas 31 and a second spacing area 33 for spacing adjacent second reflective areas 31 from each other. The first spacing area 22 and the second spacing area 33 may be arranged such that the axial length of the light patterning device 100 is prolonged while keeping the radial length (for example diameter) of the light patterning device 100, in order to increase the optical path of the light in the light patterning device 100. In this way, it may improve visual depth of the light transmitted through the light transmission area 32 to improve the light effects. As an example, the first spacing area 22 and the second spacing area 33 extend substantially in a direction parallel to the central axis 5 of the light patterning device 100.
The light patterning device 100 according to an embodiment of the present invention may be conveniently provided in the conventional all kinds of illuminating and/or signaling apparatus, for example, headlamp, rear lamp, stop lamp or the like, for an automobile vehicle.
An embodiment of the present invention also provides an illuminating and/or signaling apparatus 200. As illustrated in
The illuminating and/or signaling apparatus according to an embodiment of the present invention may be used for illumination and signaling of the vehicle, or may be used widely in other illumination and/or signaling field, for example, an electric torch or a light reflective plate for photographing.
Although the present disclosure is provided with reference to figures, all of the embodiments shown in figures are intended to explain the preferred embodiments of the present invention by ways of examples, instead of being intended to limit the present invention.
Apparently, it would be appreciated by those skilled in the art that various changes or modifications may be made in the present disclosure without departing from the principles and spirit of the disclosure, which are intended to be covered by the present invention as long as these changes or modifications fall within the scope defined in the claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2014 1 0266767 | Jun 2014 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2015/081438 | 6/15/2015 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2015/192747 | 12/23/2015 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 6099156 | Jenkins | Aug 2000 | A |
| 7926995 | Forrester | Apr 2011 | B2 |
| 8573822 | Ishihara | Nov 2013 | B2 |
| 8579485 | Hara | Nov 2013 | B2 |
| 9316378 | Ebner | Apr 2016 | B2 |
| 20120106190 | Ben-Levy | May 2012 | A1 |
| Number | Date | Country |
|---|---|---|
| 1929157 | Mar 2007 | CN |
| 101365909 | Feb 2009 | CN |
| 201293252 | Aug 2009 | CN |
| 102007608 | Apr 2011 | CN |
| 102563534 | Jul 2012 | CN |
| 2001266609 | Sep 2001 | JP |
| Entry |
|---|
| “International Application No. PCT/CN2015/081438, International Search Report dated Sep. 22, 2015”, (Sep. 22, 2015), 5 pgs. |
| “International Application No. PCT/CN2015/081438, Written Opinion dated Sep. 22, 2015”, (Sep. 22, 2016), 4 pgs. |
| Number | Date | Country | |
|---|---|---|---|
| 20170130925 A1 | May 2017 | US |
