CN109061888A - A kind of lighting device - Google Patents
A kind of lighting device Download PDFInfo
- Publication number
- CN109061888A CN109061888A CN201811122682.8A CN201811122682A CN109061888A CN 109061888 A CN109061888 A CN 109061888A CN 201811122682 A CN201811122682 A CN 201811122682A CN 109061888 A CN109061888 A CN 109061888A
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- China
- Prior art keywords
- diffraction
- fresnel lenses
- optical
- lighting
- lighting device
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- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0944—Diffractive optical elements, e.g. gratings, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0955—Lenses
- G02B27/0961—Lens arrays
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
The present invention discloses a kind of lighting device.Described device includes: lighting source, diffraction Fresnel Lenses, even optical diffraction optical element, illumination optical splitter and micro-display；The lighting source issues light, successively by the diffraction Fresnel Lenses, the even optical diffraction optical element, the illumination optical splitter and micro-display.Enable to lighting system structure more compact, light using the device of the invention, irradiate uniformity is high.
Description
Technical field
The present invention relates to lighting areas, more particularly to a kind of lighting device.
Background technique
Augmented reality, it is a kind of by " seamless " the integrated new technology of real world information and virtual world information,
It is the entity information that script is difficult to experience in the certain time spatial dimension of real world, passes through the scientific skill such as computer
Art is superimposed after analog simulation again, virtual Information application to real world is perceived by human sensory, is surmounted to reach
The sensory experience of reality.True environment and virtual object have been added to the same picture in real time or space exists simultaneously.
The information of real world is not only presented, but also virtual information is shown simultaneously, two kinds of information are complementary to one another, are superimposed.
In the augmented reality of visualization, user utilizes Helmet Mounted Display, real world with computer graphic is multiple is synthesized together, just
It can be seen that the true world is around it.
Nearly eye shows it is component part crucial in augmented reality, and nearly eye, which is shown, at present is all made of refraction optical element
Complete the design of lighting part, but the weight of most of refraction optical element structure is all biggish.
Summary of the invention
The object of the present invention is to provide a kind of lighting devices, can reduce the weight of lighting device.
To achieve the above object, the present invention provides following schemes:
A kind of lighting device, described device include: lighting source, diffraction Fresnel Lenses, even optical diffraction optical element, shine
Bright optical splitter and micro-display；The lighting source issues light, successively passes through the diffraction Fresnel Lenses, the even optical diffraction
Optical element, the illumination optical splitter and micro-display.
Optionally, the diffraction Fresnel Lenses includes the first diffraction Fresnel Lenses and the second diffraction Fresnel Lenses,
The lighting source successively spreads out by the first diffraction Fresnel Lenses, the second diffraction Fresnel Lenses and the even light
Penetrate optical element.
Optionally, the surface of the even optical diffraction optical element is embossment structure, and the embossment structure is by using more waves
Long iteration Fourier methods obtain.
Optionally, the lighting source is using integrated RGB three-color LED light source.
Optionally, the illumination optical splitter uses polarizing beam splitter or unpolarized optical splitter.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: the present invention provides a kind of photograph
Bright device, realizing collimation and homogenization in the way of multiple diffraction optical elements, wherein Fresnel Lenses is used for hair
Scattered light source is collimated, and even optical diffraction optical element is again by the collimation light uniformization, so that the illumination on micro-display is equal
It is even.The present invention, which passes through, uses multiple diffraction optical elements, so that lighting system structure is more compact, light, irradiate uniformity is high.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is illuminator structure of embodiment of the present invention figure；
Fig. 2 is the first diffraction of embodiment of the present invention Fresnel Lenses schematic diagram；
Fig. 3 is the second diffraction of embodiment of the present invention Fresnel Lenses schematic diagram；
Fig. 4 is the even optical diffraction optical element schematic diagram of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of lighting devices, can reduce the weight of lighting device.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is illuminator structure of embodiment of the present invention figure.As shown in Figure 1, a kind of lighting device, described device include:
Lighting source 1, diffraction Fresnel Lenses 2, even optical diffraction optical element 3, illumination optical splitter 4 and micro-display 5；The illumination light
Source 1 issues light, successively passes through the diffraction Fresnel Lenses 2, the even optical diffraction optical element 3,4 and of illumination optical splitter
Micro-display 5.The diffraction Fresnel Lenses 2 includes the first diffraction Fresnel Lenses 21 and the second diffraction Fresnel Lenses 22,
The lighting source 1 is successively by the first diffraction Fresnel Lenses 21, the second diffraction Fresnel Lenses 22 and described
Even optical diffraction optical element 3.First Fresnel Lenses 21 and the Fresnel Lenses 22 can be designed first in commercial optical
In the softwares such as software ZEMAX CODEV FRED LIGHTTOOLs Modeling and Design complete, then by its rise with my small gift seemingly
Theoretical transformation is corresponding pure phase position, and the design and operating method are known to professionals in the field.Fig. 2 is that the present invention is real
Apply example the first diffraction Fresnel Lenses schematic diagram.Fig. 3 is the second diffraction of embodiment of the present invention Fresnel Lenses schematic diagram；
The surface of the even optical diffraction optical element 3 is embossment structure, and the embossment structure changes by using multi-wavelength
It is obtained for Fourier techniques (IFTA) and its algorithm, genetic algorithm, the neural network algorithm that are modified based on the IFTA, the party
Method is also known to professional and technical personnel in the field.Fig. 4 is the even optical diffraction optical element schematic diagram of the embodiment of the present invention.
The lighting source 1 is using integrated RGB three-color LED light source.
The illumination optical splitter 4 uses polarizing beam splitter or unpolarized optical splitter.
The micro-display 5 uses LCOS or DMD.DMD is a kind of exclusive micro display screen of Texas Instrument (TI).LCOS
For silicon-based liquid crystal display screen.
Lighting device of the invention, realizing collimation and homogenization in the way of multiple diffraction optical elements, wherein
Fresnel Lenses for being collimated to the light source of diverging, even optical diffraction optical element again by the collimation light uniformization so that
Maintaining uniform illumination on micro-display.The present invention pass through use multiple diffraction optical elements so that lighting system structure it is more compact,
Light, irradiate uniformity is high.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (5)
1. a kind of lighting device, which is characterized in that described device includes: lighting source, diffraction Fresnel Lenses, even optical diffraction light
Learn element, illumination optical splitter and micro-display；The lighting source issues light, successively passes through the diffraction Fresnel Lenses, institute
State even optical diffraction optical element, the illumination optical splitter and micro-display.
2. lighting device according to claim 1, which is characterized in that the diffraction Fresnel Lenses includes that the first diffraction is luxuriant and rich with fragrance
Nie Er lens and the second diffraction Fresnel Lenses, the lighting source successively pass through the first diffraction Fresnel Lenses, described
Second diffraction Fresnel Lenses and the even optical diffraction optical element.
3. lighting device according to claim 1, which is characterized in that the surface of the even optical diffraction optical element is embossment
Structure, the embossment structure are obtained by using the iteration Fourier methods of multi-wavelength.
4. lighting device according to claim 1, which is characterized in that the lighting source is using integrated RGB tricolor LED light
Source.
5. lighting device according to claim 1, which is characterized in that the illumination optical splitter using polarizing beam splitter or
Unpolarized optical splitter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122682.8A CN109061888A (en) | 2018-09-26 | 2018-09-26 | A kind of lighting device |
| PCT/CN2019/083924 WO2020062847A1 (en) | 2018-09-26 | 2019-04-23 | Illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122682.8A CN109061888A (en) | 2018-09-26 | 2018-09-26 | A kind of lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109061888A true CN109061888A (en) | 2018-12-21 |
Family
ID=64765769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811122682.8A Pending CN109061888A (en) | 2018-09-26 | 2018-09-26 | A kind of lighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109061888A (en) |
| WO (1) | WO2020062847A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020062847A1 (en) * | 2018-09-26 | 2020-04-02 | 深圳珑璟光电技术有限公司 | Illumination device |
| CN111830719A (en) * | 2020-08-07 | 2020-10-27 | 谷东科技有限公司 | Lighting device and augmented reality display apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916756A (en) * | 2005-08-18 | 2007-02-21 | 精工爱普生株式会社 | Lighting device and projector |
| CN106716226A (en) * | 2014-09-16 | 2017-05-24 | 微软技术许可有限责任公司 | Compact projection light engine for diffractive waveguide display |
| CN207216257U (en) * | 2017-07-27 | 2018-04-10 | 深圳奥比中光科技有限公司 | Laser projection device containing Fresnel Lenses |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8848289B2 (en) * | 2012-03-15 | 2014-09-30 | Google Inc. | Near-to-eye display with diffractive lens |
| CN106019596B (en) * | 2016-06-21 | 2019-01-04 | 成都瀚德胜邦光学有限公司 | A kind of optical system showing equipment for virtual reality |
| CN106226902A (en) * | 2016-07-18 | 2016-12-14 | 深圳珑璟光电技术有限公司 | Display device is worn alternately for what augmented reality showed |
| US9958684B1 (en) * | 2017-04-28 | 2018-05-01 | Microsoft Technology Licensing, Llc | Compact display engine with MEMS scanners |
| CN107577046B (en) * | 2017-08-22 | 2019-11-26 | 苏州车萝卜汽车电子科技有限公司 | A kind of HUD lighting system, head-up display device and implementation method |
| CN109061888A (en) * | 2018-09-26 | 2018-12-21 | 深圳珑璟光电技术有限公司 | A kind of lighting device |
-
2018
- 2018-09-26 CN CN201811122682.8A patent/CN109061888A/en active Pending
-
2019
- 2019-04-23 WO PCT/CN2019/083924 patent/WO2020062847A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916756A (en) * | 2005-08-18 | 2007-02-21 | 精工爱普生株式会社 | Lighting device and projector |
| CN106716226A (en) * | 2014-09-16 | 2017-05-24 | 微软技术许可有限责任公司 | Compact projection light engine for diffractive waveguide display |
| CN207216257U (en) * | 2017-07-27 | 2018-04-10 | 深圳奥比中光科技有限公司 | Laser projection device containing Fresnel Lenses |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020062847A1 (en) * | 2018-09-26 | 2020-04-02 | 深圳珑璟光电技术有限公司 | Illumination device |
| CN111830719A (en) * | 2020-08-07 | 2020-10-27 | 谷东科技有限公司 | Lighting device and augmented reality display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020062847A1 (en) | 2020-04-02 |
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Application publication date: 20181221 |