CN204536735U - Transparent holographic display system - Google Patents
Transparent holographic display system Download PDFInfo
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- CN204536735U CN204536735U CN201520206635.7U CN201520206635U CN204536735U CN 204536735 U CN204536735 U CN 204536735U CN 201520206635 U CN201520206635 U CN 201520206635U CN 204536735 U CN204536735 U CN 204536735U
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- light source
- laser light
- holographic display
- light modulator
- spatial light
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Abstract
The utility model discloses a kind of transparent holographic display system, it comprises power supply, LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, control system, fluorescent screen, LASER Light Source, spatial light modulator are all connected with power supply, LASER Light Source, spatial light modulator are all connected with control system, and LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, fluorescent screen connect successively.The utility model can show complicated image, and brightness is high, energy consumption is low, can show large-size images.
Description
Technical field
The utility model relates to a kind of display system, particularly relates to a kind of transparent holographic display system.
Background technology
Current automobile head-up display system adopts LED(light emitting diode mostly) add LCD(liquid crystal display) displaying scheme, light efficiency is low, and brightness is low, and cost is high, and volume is large, and HUD size is generally no more than 10 inches.To see the large-size images of enough brightness on vehicle glass, fluorescence membrane generally can be used in existing open source information to add the scheme of laser galvanometer scanning imaging, but this kind of scheme is limited by vibration mirror scanning frequency, existence cannot show complex pattern, the shortcomings such as pattern flickers and use single beam of intensive light scan there is serious potential safety hazard.And the scheme of line holographic projections has the advantages such as light efficiency is high, brightness is high, volume is little.The scheme of line holographic projections disclosed in document is divided into the mode using the picture that prestores or the mode calculated in real time.But existing line holographic projections is on vehicle glass, light will through glass, and human eye can not see corresponding image, and uses the head-up display system of line holographic projections fabrication techniques to have the shortcoming of size less (being no more than 10 cun) equally in open source literature.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of transparent holographic display system, and it can show complicated image, and brightness is high, energy consumption is low, can show large-size images (such as before monoblock automobile, shelves glass showing image).
The utility model solves above-mentioned technical matters by following technical proposals: a kind of transparent holographic display system, it is characterized in that, it comprises power supply, LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, control system, fluorescent screen, LASER Light Source, spatial light modulator are all connected with power supply, LASER Light Source, spatial light modulator are all connected with control system, and LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, fluorescent screen connect successively.
Preferably, described power supply, LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, control system form a holographic projection system.
Preferably, described spatial light modulator uses liquid crystal on silicon, and uses phase-modulation.
Preferably, described LASER Light Source uses one or more semiconductor laser.
Preferably, described control system outputs control signals to LASER Light Source, to regulate light source output power.
Preferably, described fluorescent screen can adopt pastes fluorescent powder film on existing medium, or coating fluorescent powder or use interlayer dielectric, at interlayer inter-coat or arrange fluorescent powder, or is mixed into fluorescent material when making medium.
Preferably, described fluorescent screen uses transparent medium.
Preferably, described fluorescent screen can use one or more different fluorescent powder, or one or more layers different fluorescent powder.
Preferably, described fluorescent screen side is coated with the film that anti-specific band light passes through.This film includes in order to the surround lighting preventing non-projection side and enter the light exciting wave band close with fluorescent powder, causes interference to image.
Positive progressive effect of the present utility model is: the utility model can show complicated image, and energy consumption is low.Brightness is high, and screen size is large.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model transparent holographic display system.
Embodiment
The utility model preferred embodiment is provided, to describe the technical solution of the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model transparent holographic display system comprises power supply, LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, control system, fluorescent screen, LASER Light Source, spatial light modulator are all connected with power supply, LASER Light Source, spatial light modulator are all connected with control system, and LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, fluorescent screen connect successively.Control system adopts the chip and support circuit, the such as tall and handsome Tegra K1 chip reached that meet car rule.Obtaining signal by being connected with car machine or miscellaneous equipment, generating the image/video of display, make to convert display to hologram image video in real time with the following method:
Step one, the target image that Received signal strength generation system generates;
Step 2, generates or reads phase place;
Step 3, the target image of process input;
Step 4, by the amplitude matrix dot product phasing matrix of input;
Step 5, holographic conversion;
Step 6, quantizes previous step result;
Step 7, judges whether to export, if the phasing matrix then after output quantization, then performs step 8 if not;
Step 8, light-dark cycle, the phase place after using hot spot distribution of amplitudes matrix dot to be multiplied by step quantification;
Step 9, holographic inverse transformation;
Step 10, iterated conditional judges, judges whether to meet iterated conditional, if then perform step 11; The phase place then step 9 obtained if not as input, and abandons amplitude that step 9 obtains according to demand and adopts target image amplitude, or part retains amplitude in step 9 and combining target image amplitude generates new amplitude, rebound step 4;
Step 11, image comparison, contrasts generating amplitude in step 9 or its square with target image amplitude or its square;
Step 12, calculation compensation parameter;
Step 13, according to generating amplitude, the fresh target image of target image generation through compensating in compensating parameter/step 10, and skips to step 3.
In addition control system also can use chip and the support circuit thereof such as proprietary chip, FPGA, DSP.Or the hologram prestored also can be used to call according to input signal the hologram display that prestores.
Power supply, LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, control system form a holographic projection system.Holographic projection system is by diffraction and principle of interference imaging.
Spatial light modulator uses liquid crystal on silicon, uses phase-modulation.
LASER Light Source uses one or more semiconductor laser (can use different-waveband semiconductor laser, excite different fluorescent powder to generate multicolour pattern), it is consistent that wave band is excited by wave band and transparent fluorescent fluorescent powder that screen uses, such as ultraviolet band, 405nm wave band etc., after LASER Light Source also can use visible light wave range excitated fluorescent powder, self rest energy and fluorescent powder close look, produce abundanter color.
Fluorescent screen can adopt pastes fluorescent powder film on existing medium (such as vehicle glass), or coating fluorescent powder or use interlayer dielectric, at interlayer inter-coat or arrange fluorescent powder, or is mixed into fluorescent material when making medium.Fluorescent screen uses transparent medium, such as glass, plastics etc.Fluorescent powder film or fluorescent powder can use multiple wave band difference of being excited, and send the material of the visible light wave of different colours after being excited, thus generate coloured image.Multiple phosphor material powder also can be coated on multiple films respectively, and then pastes successively on transparent medium.
Transparent medium coating protective film, prevents the optical excitation fluorescent powder of certain wave band of from then on direction incidence, forms interference, prevent the light from then on face outgoing of the specific band projected from holographic projection system direction simultaneously to imaging.Such as, before automobile in the application of shelves glass display, holographic projection system is positioned at automobile middle control place, with the naked eye sightless ultraviolet band is to shelves glass projective patterns before coated phosphor material powder, fluorescent powder sends visible light wave imaging for passenger's viewing after being excited, front shelves outer application UV resistance film, or do UV resistance process, the light of the outer incident ultraviolet band of reflection car, prevent its excitated fluorescent powder from forming interference to imaging, also can prevent the ultraviolet light do not absorbed by fluorescent powder from penetrating outside car simultaneously and external staff is damaged.
Above-described specific embodiment; the technical matters of solution of the present utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a transparent holographic display system, it is characterized in that, it comprises power supply, LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, control system, fluorescent screen, LASER Light Source, spatial light modulator are all connected with power supply, LASER Light Source, spatial light modulator are all connected with control system, and LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, fluorescent screen connect successively.
2. transparent holographic display system as claimed in claim 1, it is characterized in that, described power supply, LASER Light Source, laser beam merging system, spatial light modulator, focus projection system, control system form a holographic projection system.
3. transparent holographic display system as claimed in claim 1, is characterized in that, described spatial light modulator uses liquid crystal on silicon, and uses phase-modulation.
4. transparent holographic display system as claimed in claim 1, it is characterized in that, described LASER Light Source uses one or more semiconductor laser.
5. transparent holographic display system as claimed in claim 1, it is characterized in that, described control system outputs control signals to LASER Light Source, to regulate light source output power.
6. transparent holographic display system as claimed in claim 1, is characterized in that, described fluorescent screen uses transparent medium.
7. transparent holographic display system as claimed in claim 6, it is characterized in that, described fluorescent screen side is coated with the film that anti-specific band light passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206635.7U CN204536735U (en) | 2015-04-08 | 2015-04-08 | Transparent holographic display system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520206635.7U CN204536735U (en) | 2015-04-08 | 2015-04-08 | Transparent holographic display system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573094A (en) * | 2015-04-08 | 2016-05-11 | 江苏慧光电子科技有限公司 | Transparent holographic display system |
| CN108761786A (en) * | 2018-03-30 | 2018-11-06 | 京东方科技集团股份有限公司 | A kind of optical module and VR equipment |
| CN109601013A (en) * | 2016-07-15 | 2019-04-09 | 光场实验室公司 | The energy relay device of propagation for two dimension, light field and holographic energy and lateral Anderson localization |
-
2015
- 2015-04-08 CN CN201520206635.7U patent/CN204536735U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573094A (en) * | 2015-04-08 | 2016-05-11 | 江苏慧光电子科技有限公司 | Transparent holographic display system |
| CN105573094B (en) * | 2015-04-08 | 2018-06-12 | 江苏慧光电子科技有限公司 | Transparent holographic display system |
| CN109601013A (en) * | 2016-07-15 | 2019-04-09 | 光场实验室公司 | The energy relay device of propagation for two dimension, light field and holographic energy and lateral Anderson localization |
| CN108761786A (en) * | 2018-03-30 | 2018-11-06 | 京东方科技集团股份有限公司 | A kind of optical module and VR equipment |
| WO2019184322A1 (en) * | 2018-03-30 | 2019-10-03 | 京东方科技集团股份有限公司 | Optical component and virtual reality (vr) device |
| CN108761786B (en) * | 2018-03-30 | 2020-08-04 | 京东方科技集团股份有限公司 | Optical assembly and VR equipment |
| US11474356B2 (en) | 2018-03-30 | 2022-10-18 | Ordos Yuansheng Optoelectronics Co., Ltd. | Optical assembly and virtual reality device |
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