CN111189000A - Lighting device - Google Patents
Lighting device Download PDFInfo
- Publication number
- CN111189000A CN111189000A CN201811359429.4A CN201811359429A CN111189000A CN 111189000 A CN111189000 A CN 111189000A CN 201811359429 A CN201811359429 A CN 201811359429A CN 111189000 A CN111189000 A CN 111189000A
- Authority
- CN
- China
- Prior art keywords
- light
- illumination device
- light source
- optical device
- providing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
An illumination device includes a light source and an optical device. The light source is used for emitting light. The optical device is used for providing uniform light with at least one indicating mark after receiving the light. The optical device includes a diffusion portion and a guide portion. The diffusion part is used for providing uniform light. The guide part is used for providing at least one indication mark.
Description
Technical Field
Embodiments of the present invention relate to an illumination device, and more particularly, to an illumination device for providing uniform light having at least one indication mark (indicating mark).
Background
In some cases, it is desirable to achieve uniform intensity distribution of light for illumination with beam-modulation techniques (beam profiling), and which includes some indicators for fast field of view (FOV) correction. However, according to the prior art, in addition to the light source, more than one optical element is generally required to meet such requirements. For example, one optical element, such as a diffuser plate (diffuser), is required to achieve uniform light distribution, and another optical element is required to provide an indicator, such as spots (spots).
Disclosure of Invention
The invention aims to provide a lighting device, which comprises a light source and an optical device. The light source is used for emitting light. The optical device is used for providing uniform light with at least one indicating mark after receiving the light. The optical device includes a diffusion portion and a guide portion. The diffusion part is used for providing uniform light. The guide part is used for providing at least one indication mark.
In some embodiments, the illumination device further includes a collimator disposed between the light source and the optical device, and the collimator is used for condensing light.
In some embodiments, the Light source is a Light-Emitting Diode (LED), a Vertical-Cavity Surface-Emitting Laser (VCSEL), or a Laser Diode (LD).
In some embodiments, the diffusion portion has a subwavelength structure (subwavelength structure).
In some embodiments, wherein the diffusion has a surface relief microstructure.
In some embodiments, the diffusion portion is a Diffractive Optical Element (DOE).
In some embodiments, the diffusion is a microlens array (micro lens array).
In some embodiments, the guiding portion is a Diffractive Optical Element (DOE).
In some embodiments, the guide is at least one lens or microlens array (micro lens array).
In some embodiments, wherein the diffusing portion is a microprism (microprism).
Drawings
The invention may be more completely understood in consideration of the following detailed description of the embodiments and with reference to the accompanying drawings, which are described below.
Fig. 1 is a schematic structural diagram of a lighting device according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a lighting device according to a second embodiment of the invention.
Fig. 3 is a perspective view of an optical device of a lighting device according to a second embodiment of the present invention.
Description of reference numerals:
100. 200: lighting device
120. 220, and (2) a step of: light source
140. 240: optical device
160: collimating lens
242: diffusion part
244: guide part
Detailed Description
The following detailed description is provided by way of example only and is not intended to limit the scope of the present invention, as the present invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. In addition, the drawings are for illustrative purposes only and are not drawn to scale.
Fig. 1 is a schematic architecture diagram of a lighting device 100 according to a first embodiment of the present invention. The illumination device 100 includes a light source 120 and an optical device 140. The light source 120 is used to emit light. The light source 120 may be a Light Emitting Diode (LED), a Vertical Cavity Surface Emitting Laser (VCSEL), or a Laser Diode (LD). The optical device 140 is a Diffractive Optical Element (DOE) for providing uniform light having at least one index mark after receiving the light.
In the first embodiment of the present invention, the Diffractive Optical Element (DOE) can be used as a diffuser plate (diffuser) to provide uniform light after receiving light. In the first embodiment of the present invention, the Diffractive Optical Element (DOE) can also be used as a pattern generator, and the light passes through the Diffractive Optical Element (DOE) to generate a projected image, wherein the projected image can have a specific pattern with at least one indication mark set by the Diffractive Optical Element (DOE).
In the first embodiment of the present invention, the illumination device 100 may optionally include a collimating mirror 160 disposed between the light source 120 and the optical device 140. The collimator 160 is used to condense light. The optical device 140, i.e. a Diffractive Optical Element (DOE), is used for providing uniform light with at least one index mark after receiving the focused light.
Fig. 2 is a schematic structural diagram of a lighting device 200 according to a second embodiment of the present invention. The illumination device 200 includes a light source 220 and an optical device 240. The light source 220 is used to emit light. The light source 220 may be a Light Emitting Diode (LED), a Vertical Cavity Surface Emitting Laser (VCSEL), or a Laser Diode (LD).
The guiding portion 244 of the optical device 240 of the illumination device 200 includes at least one lens for providing at least one indication mark. As shown in fig. 3, the guide 244 includes four lenses, thereby providing four index marks. It should be noted that the number of lenses is adjustable, thereby changing the number of index marks. It should be noted that the position of the lens is adjustable, thereby changing the position of the index mark.
In some embodiments of the present invention, the illumination device includes a light source and an optical device. The light source is used for emitting light. The optical device is used for providing uniform light with at least one indicating mark after receiving the light. The optical device includes a diffusion portion and a guide portion. The diffusion may have a sub-wavelength structure (subwavelength structure) or a surface relief structure (surface relief structure), or the diffusion may be a Diffractive Optical Element (DOE) or a microlens array (microlens). The diffusion part is used for providing uniform light. The guiding portion can be a Diffractive Optical Element (DOE), at least one lens, a micro lens array or a micro prism (microprism). The guide part is used for providing at least one indication mark.
In summary, the present invention provides an illumination device including a single light source device for providing uniform light having at least one indicator mark. The present invention does not require two separate optical devices, one to provide uniform light and one to provide at least one indicator mark.
Although the present invention has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein. It will be apparent to those skilled in the art that various modifications and variations can be made in the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention cover modifications and variations of this invention provided they come within the scope of the appended claims.
Claims (10)
1. An illumination device, comprising:
a light source for emitting light; and
an optical device for providing a uniform light having at least one indicator mark after receiving the light, wherein the optical device comprises:
a diffusion part for providing the uniform light; and
a guiding part for providing the at least one indication mark.
2. The illumination device of claim 1, further comprising:
and the collimating mirror is arranged between the light source and the optical device and is used for condensing light.
3. The illumination device of claim 1, wherein the light source is a light emitting diode, a vertical cavity surface emitting laser, or a laser diode.
4. The illumination device according to claim 1, wherein the diffusion portion has a primary wavelength structure.
5. The illumination device according to claim 1, wherein the diffusion portion has a surface relief microstructure.
6. The illumination device according to claim 1, wherein the diffusion portion is a diffractive optical element.
7. The illumination device according to claim 1, wherein the diffusion portion is a microlens array.
8. The illumination device as recited in claim 1, wherein the guiding portion is a diffractive optical element.
9. The illumination device of claim 1, wherein the guiding portion is at least one lens or a micro-lens array.
10. The illumination device of claim 1, wherein the diffuser is a microprism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359429.4A CN111189000B (en) | 2018-11-15 | 2018-11-15 | Lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811359429.4A CN111189000B (en) | 2018-11-15 | 2018-11-15 | Lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111189000A true CN111189000A (en) | 2020-05-22 |
| CN111189000B CN111189000B (en) | 2022-11-18 |
Family
ID=70705549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811359429.4A Active CN111189000B (en) | 2018-11-15 | 2018-11-15 | Lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111189000B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300933A (en) * | 1997-04-22 | 1998-11-13 | Dainippon Printing Co Ltd | Diffusion hologram optical element |
| CN1352786A (en) * | 1999-05-28 | 2002-06-05 | 智能控制系统有限公司 | Light indicator |
| JP3113287U (en) * | 2004-11-04 | 2005-09-02 | 俊廷 林 | Indicator lamp |
| CN101793378A (en) * | 2009-01-30 | 2010-08-04 | 株式会社Jiro企业策划 | Optical sheet for liquid crystal display apparatus and backlight unit using the same |
| TW201217838A (en) * | 2010-10-19 | 2012-05-01 | Univ Nat Central | employing two different micro structures of micro lenses to change traveling path of light source for more focused illumination |
| CN103343900A (en) * | 2013-07-04 | 2013-10-09 | 苏州向隆塑胶有限公司 | Escape indication illuminating lamp and light emitting module thereof |
| CN204420866U (en) * | 2015-01-20 | 2015-06-24 | 吴胡高 | For throwing light on, fire-fighting instruction and current failure emergency illumination ceiling-type lamp |
| CN104956179A (en) * | 2012-12-31 | 2015-09-30 | Iee国际电子工程股份公司 | Optical system generating a structured light field from an array of light sources by means of a refracting of reflecting light structuring element |
| CN105676340A (en) * | 2016-02-25 | 2016-06-15 | 福州大学 | Polarization multiplexing guidance structure for composite parabolic reflection micro collimating lens and realization method thereof |
| CN106594577A (en) * | 2015-10-19 | 2017-04-26 | 法雷奥照明湖北技术中心有限公司 | Projection type illuminating and/or signal indicating equipment |
| CN107003558A (en) * | 2014-12-12 | 2017-08-01 | 三星电子株式会社 | Composite optical sheet, the Liquid crystal disply device and its preparation method using it |
| JP2018138952A (en) * | 2017-02-24 | 2018-09-06 | 株式会社Ｊｖｃケンウッド | Display |
-
2018
- 2018-11-15 CN CN201811359429.4A patent/CN111189000B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300933A (en) * | 1997-04-22 | 1998-11-13 | Dainippon Printing Co Ltd | Diffusion hologram optical element |
| CN1352786A (en) * | 1999-05-28 | 2002-06-05 | 智能控制系统有限公司 | Light indicator |
| JP3113287U (en) * | 2004-11-04 | 2005-09-02 | 俊廷 林 | Indicator lamp |
| CN101793378A (en) * | 2009-01-30 | 2010-08-04 | 株式会社Jiro企业策划 | Optical sheet for liquid crystal display apparatus and backlight unit using the same |
| TW201217838A (en) * | 2010-10-19 | 2012-05-01 | Univ Nat Central | employing two different micro structures of micro lenses to change traveling path of light source for more focused illumination |
| CN104956179A (en) * | 2012-12-31 | 2015-09-30 | Iee国际电子工程股份公司 | Optical system generating a structured light field from an array of light sources by means of a refracting of reflecting light structuring element |
| CN103343900A (en) * | 2013-07-04 | 2013-10-09 | 苏州向隆塑胶有限公司 | Escape indication illuminating lamp and light emitting module thereof |
| CN107003558A (en) * | 2014-12-12 | 2017-08-01 | 三星电子株式会社 | Composite optical sheet, the Liquid crystal disply device and its preparation method using it |
| CN204420866U (en) * | 2015-01-20 | 2015-06-24 | 吴胡高 | For throwing light on, fire-fighting instruction and current failure emergency illumination ceiling-type lamp |
| CN106594577A (en) * | 2015-10-19 | 2017-04-26 | 法雷奥照明湖北技术中心有限公司 | Projection type illuminating and/or signal indicating equipment |
| CN105676340A (en) * | 2016-02-25 | 2016-06-15 | 福州大学 | Polarization multiplexing guidance structure for composite parabolic reflection micro collimating lens and realization method thereof |
| JP2018138952A (en) * | 2017-02-24 | 2018-09-06 | 株式会社Ｊｖｃケンウッド | Display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111189000B (en) | 2022-11-18 |
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