CN104132797A - Reflecting mirror characteristic testing device - Google Patents
Reflecting mirror characteristic testing device Download PDFInfo
- Publication number
- CN104132797A CN104132797A CN201410348414.3A CN201410348414A CN104132797A CN 104132797 A CN104132797 A CN 104132797A CN 201410348414 A CN201410348414 A CN 201410348414A CN 104132797 A CN104132797 A CN 104132797A
- Authority
- CN
- China
- Prior art keywords
- lens
- reflecting mirror
- catoptron
- experimental test
- angle
- 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
Links
Landscapes
- Holo Graphy (AREA)
Abstract
The invention relates to a reflecting mirror characteristic testing device which is mainly composed of a laser transmitter (1), a filter (2), a collimating lens (3), a reflecting mirror (4), a lens (6) and a CCD (7), all of which are arranged along an optical path. The collimating lens (3) and the lens (6) are arranged on the same side of the reflecting mirror (4), and the collimating lens (3) and the lens (6) are symmetrically arranged on the two sides of the normal direction of the reflecting mirror (4). An angle of 45 degrees is formed both between the collimating lens (3) and the reflecting mirror (4) and between the lens (6) and the reflecting mirror (4). Outgoing beams of the collimating lens (3) form an angle of 45 degrees with the plane of the reflecting mirror (4). An attenuator (5) is arranged between the reflecting mirror (4) and the lens (6). Through testing of the characteristics of a holographic reflecting mirror of a reflective body, experimental test of diffraction efficiency, experimental test of wavelength, experimental test of angle selectivity, experimental test of environmental stability and experimental test of other parameters are determined, so that reference data can be offered to the manufacture of holographic display screens.
Description
Technical field
The present invention relates to a kind of measurement mechanism for holographic display screen reflective holographic catoptron diffraction efficiency, belong to optical field.
Background technology
Up-to-date automobile has adopted a large amount of electronic technology and sensor, constantly monitors and assess environment around, for automobile shows relevant information, directly takes over even in some cases the control of automobile.Aspect security, comfortableness and the driving efficiency of raising automobile, these electronic equipments play an important role.Wherein look squarely display system and have simple in structurely, with low cost, the advantage such as scalability is strong, looks squarely and refers to that driver does not need to bow and just can see the important information of his needs.Head-up display appears on military aircraft the earliest, and reduction pilot need to bow and check the frequency of instrument, avoids notice to interrupt and lose the grasp to state consciousness.The DAS (Driver Assistant System) that on automobile, most probable obtains popularization application at present.Vehicle-mounted head-up display requires holographic display screen will have higher narrowband reflection rate to projection information, scene information will have higher transmitance to external world, therefore, diffraction efficiency, wavelength and angular selectivity, the environmental stability of reflection-type body holographic mirror is the important parameter that needs consideration, needs these three parameters to carry out concrete test.
Summary of the invention
In order to overcome the deficiencies in the prior art, resolve the problem of prior art, make up the deficiency of existing existing product in the market.
The invention provides a kind of catoptron characteristic test device, catoptron characteristic test device mainly consists of the generating laser arranging respectively along optical path direction, wave filter, collimation lens, catoptron, lens and CCD, described collimation lens and lens are arranged on the same side of catoptron, and collimation lens and lens arrange in catoptron normal direction symmetria bilateralis, each angle at 45 ° of collimation lens and lens and catoptron arranges, the outgoing beam of collimation lens and mirror plane angle at 45 ° is provided with attenuator between described catoptron and lens.
By test reflection-type body holographic mirror characteristic, determine the experiment test of diffraction efficiency parameter, the isoparametric experiment test of experiment test, environmental stability of the experiment test of wavelength parameter and angular selectivity parameter so just can provide reference data for the making of holographic display screen.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark in figure: 1-generating laser; 2-wave filter; 3-collimation lens; 4-catoptron; 5-attenuator; 6-lens; 7-CCD.
Embodiment
For the ease of those of ordinary skills, understand and implement the present invention, below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
The concrete measurement mechanism of diffraction efficiency as shown in Figure 1, main by the generating laser arranging respectively along optical path direction (1), wave filter (2), collimation lens (3), catoptron (4), lens (6) and CCD (7) form, described collimation lens (3) and lens (6) are arranged on the same side of catoptron (4), and collimation lens (3) and lens (6) arrange in catoptron (4) normal direction symmetria bilateralis, each angle at 45 ° of collimation lens (3) and lens (6) and catoptron (4) arranges, the outgoing beam of collimation lens (3) and catoptron (4) plane angle at 45 °, between described catoptron (4) and lens (5), be provided with attenuator (5).
Vehicle-mounted head-up display requires holographic display screen will have higher narrowband reflection rate to projection information, scene information will have higher transmitance to external world, therefore, diffraction efficiency, wavelength and angular selectivity, the environmental stability of reflection-type body holographic mirror is the important parameter that needs consideration, these three parameters carried out to concrete experiment test below.
(1) definition of diffraction efficiency
Diffraction efficiency is normally defined the ratio of the first-order diffraction effective luminous flux of holographic mirror diffraction and the effective luminous flux of holographic mirror
η＝I
d/(I
i-I
t)
I in formula
dfor diffraction light intensity, I
tfor transmitted light intensity, I
ifor reference light intensity.Diffraction efficiency is directly connected to the efficiency of light energy utilization of vehicle-mounted HUD system, thereby impact shows the brightness of image.
(1) measurement of diffraction efficiency
Diffraction efficiency is the important parameter of holographic display screen, directly affects all efficiencies of light energy utilization of whole vehicle-mounted head-up display.Diffraction efficiency is very responsive to off-Bragg amount, the hypersensitivity with angle and wavelength, the thing ginseng splitting ratio of the thickness of diffraction efficiency and photopolymer, the concentration of each component and incident intensity and record etc. has relation, by these conditions are optimized, can obtain the highest diffraction efficiency, in the present invention, be reflection-type body holographic mirror due to what make, analyze by experiment, when reference object ratio is controlled between 1: 1 to 1: 4, diffraction efficiency is higher.In addition, monomer concentration is larger on diffraction efficiency impact, and diffraction efficiency increases with the increase of monomer concentration within the specific limits, but when monomer concentration is too high, easily occurs ovennodulation phenomenon.Be all generally that diffraction efficiency and luminous sensitivity are considered, be desirably in the highest diffraction efficiency of acquisition under the highest luminous sensitivity.And can not unconfined increase monomer in polymkeric substance, because the solubleness of monomer in film is limited, when excessive concentration, they can separate out at film surface, produce noise catoptron.
When concrete use, by test reflection-type body holographic mirror characteristic, determine the experiment test of diffraction efficiency parameter, the isoparametric experiment test of experiment test, environmental stability of the experiment test of wavelength parameter and angular selectivity parameter so just can provide reference data for the making of holographic display screen.
The embodiment of the above is better embodiment of the present invention; not with this, limit specific embodiment of the invention scope; scope of the present invention comprises and is not limited to this embodiment, and the equivalence that all shapes according to the present invention, structure are done changes all in protection scope of the present invention.
Claims (1)
1. a catoptron characteristic test device, it is characterized in that: described catoptron characteristic test device is mainly by the generating laser arranging respectively along optical path direction (1), wave filter (2), collimation lens (3), catoptron (4), lens (6) and CCD (7) form, described collimation lens (3) and lens (6) are arranged on the same side of catoptron (4), and collimation lens (3) and lens (6) arrange in catoptron (4) normal direction symmetria bilateralis, each angle at 45 ° of collimation lens (3) and lens (6) and catoptron (4) arranges, the outgoing beam of collimation lens (3) and catoptron (4) plane angle at 45 °, between described catoptron (4) and lens (5), be provided with attenuator (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348414.3A CN104132797A (en) | 2014-07-16 | 2014-07-16 | Reflecting mirror characteristic testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348414.3A CN104132797A (en) | 2014-07-16 | 2014-07-16 | Reflecting mirror characteristic testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104132797A true CN104132797A (en) | 2014-11-05 |
Family
ID=51805565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410348414.3A Pending CN104132797A (en) | 2014-07-16 | 2014-07-16 | Reflecting mirror characteristic testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104132797A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579947A (en) * | 1991-09-19 | 1993-03-30 | Fujitsu Ltd | Hologram characteristic evaluating method and device thereof |
| CN1407143A (en) * | 2001-08-30 | 2003-04-02 | 中国科学院福建物质结构研究所 | Nickel ammonium sulfate hexahydrate crystal for ultraviolet filter |
| WO2007101180A2 (en) * | 2006-02-28 | 2007-09-07 | Applied Extrusion Technologies, Inc. | Method for optical characterization and evaluation of optically variable devices and media |
| CN102213615A (en) * | 2011-04-01 | 2011-10-12 | 中国兵器工业第二〇五研究所 | LED optical parameter comprehensive testing device |
| CN102620908A (en) * | 2012-03-20 | 2012-08-01 | 西北工业大学 | Method for acquiring reflection type volume holographic grating parameters |
| CN102790349A (en) * | 2012-07-30 | 2012-11-21 | 北京航空航天大学 | Multi-wavelength passively Q-switched laser |
| CN102853993A (en) * | 2012-09-28 | 2013-01-02 | 中华人民共和国深圳出入境检验检疫局 | Method and device for testing radiation of laser or light emitting diode (LED) in electric toy |
| CN202793737U (en) * | 2012-02-23 | 2013-03-13 | 科纳技术(苏州)有限公司 | System for detecting reflectivity of plane mirror |
| CN103344416A (en) * | 2013-06-28 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Volume holographic transmission grating diffraction efficiency tester |
| CN203965130U (en) * | 2014-07-16 | 2014-11-26 | 奉化市宇创产品设计有限公司 | Catoptron characteristic test device |
-
2014
- 2014-07-16 CN CN201410348414.3A patent/CN104132797A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579947A (en) * | 1991-09-19 | 1993-03-30 | Fujitsu Ltd | Hologram characteristic evaluating method and device thereof |
| CN1407143A (en) * | 2001-08-30 | 2003-04-02 | 中国科学院福建物质结构研究所 | Nickel ammonium sulfate hexahydrate crystal for ultraviolet filter |
| WO2007101180A2 (en) * | 2006-02-28 | 2007-09-07 | Applied Extrusion Technologies, Inc. | Method for optical characterization and evaluation of optically variable devices and media |
| CN102213615A (en) * | 2011-04-01 | 2011-10-12 | 中国兵器工业第二〇五研究所 | LED optical parameter comprehensive testing device |
| CN202793737U (en) * | 2012-02-23 | 2013-03-13 | 科纳技术(苏州)有限公司 | System for detecting reflectivity of plane mirror |
| CN102620908A (en) * | 2012-03-20 | 2012-08-01 | 西北工业大学 | Method for acquiring reflection type volume holographic grating parameters |
| CN102790349A (en) * | 2012-07-30 | 2012-11-21 | 北京航空航天大学 | Multi-wavelength passively Q-switched laser |
| CN102853993A (en) * | 2012-09-28 | 2013-01-02 | 中华人民共和国深圳出入境检验检疫局 | Method and device for testing radiation of laser or light emitting diode (LED) in electric toy |
| CN103344416A (en) * | 2013-06-28 | 2013-10-09 | 中国科学院长春光学精密机械与物理研究所 | Volume holographic transmission grating diffraction efficiency tester |
| CN203965130U (en) * | 2014-07-16 | 2014-11-26 | 奉化市宇创产品设计有限公司 | Catoptron characteristic test device |
Non-Patent Citations (4)
| Title |
|---|
| 刘英 等: "《体全息光栅偏移布拉格角读出时衍射角的测定》", 《激光杂志》 * |
| 唐敏学: "《反射体全息的衍射偏振特性研究》", 《中国优秀博硕士学位论文全文数据库（硕士） 基础科学辑》 * |
| 孙亚军 等: "《体全息成像系统的深度分辨率特性分析》", 《光子学报》 * |
| 薛金戈: "《基于耦合波理论的体全息光栅衍射效率计算》", 《电子元器件应用》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107817629B (en) | Liquid crystal display device | |
| CN108957752B (en) | Head-mounted display | |
| CN109143576B (en) | Display system, display method thereof and vehicle | |
| US9679367B1 (en) | HUD system and method with dynamic light exclusion | |
| EP2956815B1 (en) | Cascading optics in optical combiners of head mounted displays | |
| EP3617773B1 (en) | Display device | |
| US9395542B2 (en) | Projecting synthetic imagery and scenic imagery using an optical component comprising a diffractive optical element pattern | |
| US9223152B1 (en) | Ambient light optics for head mounted display | |
| Erdenebat et al. | Waveguide-type head-mounted display system for AR application | |
| JP2018535438A (en) | Photodetection and ranging system with distributed laser and multiple sensor heads, and pulsed laser for optical detection and ranging system | |
| EP3163356A1 (en) | Image display device | |
| CN112444968B (en) | Augmented reality's optics superimposer and relevant equipment | |
| CN106353884A (en) | Display device | |
| CN204269343U (en) | Diffraction efficiency measurement mechanism | |
| CN105527708A (en) | Dust cover assembly and head-up display device including the same | |
| CN203965130U (en) | Catoptron characteristic test device | |
| CN104132797A (en) | Reflecting mirror characteristic testing device | |
| CN112859378A (en) | Contrast enhancement suspension display system of anti ambient light | |
| CN104155761A (en) | Driving assisting head-up device | |
| CN217821106U (en) | Augmented reality display device | |
| CN214311140U (en) | Contrast enhancement suspension display system of anti ambient light | |
| US12025798B1 (en) | Multipurpose in-vehicle display systems with ambient light sources for integrated HUDs, instrument clusters, and interactive displays | |
| Weng et al. | 3‐3: study on the field of view properties for a holographic waveguide display system | |
| WO2022160825A1 (en) | Optical diffractive device and terminal device | |
| KR102069417B1 (en) | Head up display device for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141105 |
|
| RJ01 | Rejection of invention patent application after publication |