CN109061888A - A kind of lighting device - Google Patents

A kind of lighting device Download PDF

Info

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
Authority
CN
China
Prior art keywords
diffraction
fresnel lenses
optical
lighting
lighting device
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.)
Pending
Application number
CN201811122682.8A
Other languages
Chinese (zh)
Inventor
宋强
翟婷婷
苏鹏华
马国斌
汪涛
彭雅珮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN JIING FAIRY PHOTOELECTRIC TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN JIING FAIRY PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHENZHEN JIING FAIRY PHOTOELECTRIC TECHNOLOGY Co Ltd filed Critical SHENZHEN JIING FAIRY PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority to CN201811122682.8A priority Critical patent/CN109061888A/en
Publication of CN109061888A publication Critical patent/CN109061888A/en
Priority to PCT/CN2019/083924 priority patent/WO2020062847A1/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938Using specific optical elements
    • G02B27/0944Diffractive optical elements, e.g. gratings, holograms
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938Using specific optical elements
    • G02B27/095Refractive optical elements
    • G02B27/0955Lenses
    • G02B27/0961Lens arrays

Landscapes

  • 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

A kind of lighting device
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.
CN201811122682.8A 2018-09-26 2018-09-26 A kind of lighting device Pending CN109061888A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
US11422374B2 (en) Methods and system for creating focal planes in virtual and augmented reality
Hu et al. Design and assessment of a depth-fused multi-focal-plane display prototype
Hainich et al. Displays: fundamentals & applications
CN105283796B (en) Nearly eye device
US9995857B2 (en) System, apparatus, and method for displaying an image using focal modulation
CN109863533A (en) Virtually, enhancing and mixed reality system and method
EP3237957A1 (en) Near-to-eye display device
WO2016105285A1 (en) Near-to-eye display device with variable resolution
US20160195718A1 (en) System, method, and apparatus for displaying an image using multiple diffusers
JP7317003B2 (en) Eyepiece 3D display with separate phase and amplitude modulators
CN105518539A (en) Methods and systems for augmented reality
TW201142757A (en) A method of computing a hologram
CN107272199A (en) Virtual and augmented reality System and method for
WO2003058979A2 (en) Three-dimensional image projection employing retro-reflective screens
JP2015515636A5 (en)
CN107329256A (en) Display device and its control method
CN113574471B (en) Holographic image generated based on eye position
EP3837578A1 (en) Display device with throughput calibration
WO2016105283A1 (en) Near-to-eye display device with moving light sources
CN109061888A (en) A kind of lighting device
JP2022081556A (en) Hybrid photonic vr/ar systems
WO2014073201A1 (en) Display device using computer generated hologram
CN108762033A (en) It imaging method and optical system and its storage medium, chip and combines
WO2016105284A1 (en) Apparatus for generating a coherent beam illumination
Liu et al. Full‐color multi‐plane optical see‐through head‐mounted display for augmented reality applications

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20181221