CN113992901A - Projection imaging device, use method of projection imaging device and liquid crystal light valve system - Google Patents
Projection imaging device, use method of projection imaging device and liquid crystal light valve system Download PDFInfo
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- CN113992901A CN113992901A CN202111262875.5A CN202111262875A CN113992901A CN 113992901 A CN113992901 A CN 113992901A CN 202111262875 A CN202111262875 A CN 202111262875A CN 113992901 A CN113992901 A CN 113992901A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 93
- 238000003384 imaging method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000012530 fluid Substances 0.000 claims description 68
- 239000011521 glass Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 8
- 239000012809 cooling fluid Substances 0.000 claims description 4
- 238000001228 spectrum Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 10
- 239000000110 cooling liquid Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 230000010287 polarization Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 208000033999 Device damage Diseases 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3155—Modulator illumination systems for controlling the light source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3144—Cooling systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3161—Modulator illumination systems using laser light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a projection imaging device, a use method of the projection imaging device and a liquid crystal light valve system, wherein the projection imaging device comprises a receiving module, a generating module and a projection module; the receiving module is used for receiving instruction information of a user; the generating module is used for generating a corresponding specific image according to the instruction information; and the projection module is used for projecting the specific image. Compared with Gaussian laser, the projection beam of the projection device has the advantages of uniform beam, wide beam spectrum band, adjustable intensity of each part and no scattered light spot.
Description
Technical Field
The invention relates to the technical field of optical addressing liquid crystal light valves, in particular to a projection imaging device, a use method of the projection imaging device and a liquid crystal light valve system.
Background
An optically addressed liquid crystal light valve is an optically addressed spatial light modulator made by associating a liquid crystal material with a photoconductive sheet. The photoconductive sheet and the glass sheet form a liquid crystal cell, and ITO electrodes are deposited on the outside of the photoconductive sheet and the inside of the glass sheet for applying a voltage. And liquid crystal material is filled between the photoconductive thin plate and the glass thin plate to form the complete liquid crystal light valve device.
Before the addressing light enters, the applied voltage cannot fall on the liquid crystal due to the large dark-state resistance of the photoconductive sheet, and therefore, the voltage regulation of the liquid crystal cannot be realized. After the addressing light enters, the photoconduction of the part irradiated by the addressing light is increased, and the voltage of the part can be applied to the liquid crystal material through the photoconductive sheet, so that the liquid crystal material is regulated.
In fact, in the current liquid crystal light valve system, most of the addressing light used by the optical addressing light valve is laser, and because the light beam output by the laser is a single-point gaussian light beam, the problems of uneven beam edge, scattered light spots in the addressing process and the like exist.
Disclosure of Invention
Compared with Gaussian laser, the projection beam of the projection device has the advantages of uniform beam, wide beam spectrum band, adjustable intensity of each part and no scattered light spot.
The invention is realized by the following technical scheme:
in one aspect of the present application, a projection imaging apparatus is provided, which includes a receiving module, a generating module, and a projecting module;
the receiving module is used for receiving instruction information of a user;
the generating module is used for generating a corresponding specific image according to the instruction information;
the projection module is used for projecting the specific image.
Preferably, the generating module includes an image generating unit and a specific image generating unit;
the image generating unit is used for generating a corresponding image according to the image instruction information in the instruction information;
and the specific image generating unit is used for carrying out color filling on the image according to the color proportion instruction information in the instruction information to obtain the specific image.
Preferably, the generation module further comprises a background generation unit for filling the background of the specific image with black.
In another aspect of the present application, there is provided a projection method of a projection imaging apparatus, the projection method including the steps of:
s1: receiving instruction information of a user;
s2: generating corresponding specific image information according to the instruction information;
s3: projecting the specific image information.
Preferably, the S2 includes the following substeps:
s21: generating a corresponding image according to image instruction information in the instruction information;
s22: and performing color filling on the image according to the color ratio instruction information in the instruction information to obtain the specific image.
Preferably, the S2 further includes the following sub-steps:
filling the background of the specific image in black.
In yet another aspect of the present application, there is provided a liquid crystal light valve system comprising an optically addressed liquid crystal light valve and a projection imaging device as described above;
the projection imaging device is used for projecting the image information onto the optical addressing liquid crystal light valve.
Preferably, the optically addressed liquid crystal light valve comprises a photoconductive thin plate, a liquid crystal and a glass substrate;
the photoconductive thin plate, the liquid crystal and the glass substrate are sequentially arranged from top to bottom, and conductive films are arranged on one side, away from the liquid crystal, of the photoconductive thin plate and on one side, close to the liquid crystal, of the glass substrate.
Preferably, the photoconductive sheet is configured as a BSO photoconductive sheet.
Preferably, the photoconductive sheet is provided with a fluid flow channel for flowing a cooling fluid therethrough.
Compared with the prior art, the invention has the following advantages and beneficial effects:
when the projection light beam in the projection imaging device is mixed wave light with adjustable color, when the projection imaging device is applied to a liquid crystal light valve system, the proportion of each wave band in the mixed wave can be controlled by fine adjustment of the color, so that the size of the voltage reaching a liquid crystal layer is controlled, and the damage of devices caused by the fact that the voltage reaches the liquid crystal layer is controlled by adjusting the laser intensity in the prior art is avoided; in addition, because the projection has the advantages of deformity correction property and oblique incidence realization, when the projection is applied to a liquid crystal light valve system, the trouble of light path adjustment caused by the fact that the addressing light and the main laser are combined into the same light path can be avoided; in addition, compared with Gaussian laser, the projection beam has the advantages of uniform beam, wide beam spectrum, adjustable intensity of each part and no scattered light spot, avoids the processes of Gaussian beam shaping, laser beam expanding, graphical laser and the like, and simplifies the light path structure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of a liquid crystal light valve system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another embodiment of a liquid crystal light valve system according to the present invention;
FIG. 3 is a schematic diagram of an optically addressed liquid crystal light valve according to the present invention;
FIG. 4 is a cross-sectional view of a fluid flow channel on a photoconductive sheet in accordance with the present invention;
FIG. 5 is a cross-sectional view of a fluid flow channel on a photoconductive sheet in accordance with the present invention;
FIG. 6 is a cross-sectional view of a fluid flow channel on a photoconductive sheet in accordance with the present invention;
reference numbers and corresponding part names in the drawings:
1. a main laser generator; 2. a projection imaging device; 3. an optically addressed liquid crystal light valve; 4. a polarizing plate; 5. an imaging system; 6. a light splitter; 7. a target surface; 8. a detection system; 9. a photoconductive sheet; 10. a fluid inlet channel; 11. a fluid return channel; 12. a fluid cooling channel; 13. a primary fluid flow passage; 14. a secondary fluid flow channel; 15. a conductive film; 16. a fluid flow channel; 17. a liquid crystal; 18. a glass substrate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
A projection imaging device 2 comprises a receiving module, a generating module and a projection module;
the receiving module is used for receiving instruction information of a user;
the instruction information in this embodiment includes image instruction information and color ratio instruction information; the image instruction information is used for generating an image of a specific shape, and the color proportion instruction information is used for performing color filling on the generated image.
The generating module is used for generating a corresponding specific image according to the instruction information; specifically, the method comprises the following steps:
the generation module in the present embodiment includes an image generation unit and a specific image generation unit;
an image generating unit configured to generate a specified image according to the image instruction information;
and the specific image generating unit is used for carrying out color filling on the image according to the color proportion instruction information to obtain the specific image.
Specifically, because the absorption rates of the photoconductive thin plate 9 in the light-addressed liquid crystal light valve 3 to the lights with different wave bands are different, when the lights with different wave bands act on different positions of the photoconductive thin plate 9 at the same time, the phase of the liquid crystal 17 at the corresponding position below the photoconductive thin plate is changed, so that the polarization direction of the incident main laser is changed, the polarization direction of the incident main laser and a rear polarizer act together to influence the transmittance, and the transmittances corresponding to different positions are different. Thus, the phase of the liquid crystal 17, and hence the transmittance of the optically addressed liquid crystal light valve 3, can be adjusted by adjusting the fill color of the image.
And the projection module is used for projecting the generated specific image.
In the existing liquid crystal light valve system, most addressing light used by the optical addressing light valve is laser, and because the light beam output by the laser is a single-point Gaussian light beam, the problems of uneven light beam edge, scattered light spots in the addressing process and the like exist. Based on this, the application provides a projection imaging device, the projection light beam in the projection imaging device 2 is mixed wave light with adjustable color, when the projection imaging device is applied to a liquid crystal light valve system, the proportion of each wave band in the mixed wave can be controlled by fine tuning the color, and then the voltage can be controlled to reach the size of the liquid crystal 17, thereby avoiding the device damage caused by controlling the voltage to reach the size of the liquid crystal 17 by adjusting the laser intensity in the prior art; in addition, because the projection has the advantages of deformity correction property and oblique incidence realization, when the projection is applied to a liquid crystal light valve system, the trouble of light path adjustment caused by the fact that the addressing light and the main laser are combined into the same light path can be avoided; in addition, compared with Gaussian laser, the projection beam has the advantages of uniform beam, wide beam spectrum, adjustable intensity of each part and no scattered light spot, avoids the processes of Gaussian beam shaping, laser beam expanding, graphical laser and the like, and simplifies the light path structure.
Further, in order to avoid projecting excessive light during projection, the generation module further comprises a background generation unit, the background generation unit is used for filling the background of the specific image into black, and the black background is not projected on the light-addressed liquid crystal light valve 3 through the projection module, so that the photoconductive material is not caused to absorb light and the conductivity is not changed. The background mentioned in the embodiment refers to: when the projection light is irradiated, the portion other than the specific image is removed.
Example 2
The present embodiment provides a projection method of a projection imaging apparatus 2 on the basis of embodiment 1, including the steps of:
s1: receiving instruction information of a user;
the instruction information in this embodiment includes image instruction information and color ratio instruction information; the image instruction information is used for generating an image of a specific shape, and the color proportion instruction information is used for performing color filling on the generated image.
S2: generating corresponding specific image information according to the instruction information, specifically, the method comprises the following steps:
s21: generating a corresponding image according to the image instruction information in the instruction information;
s22: and performing color filling on the image according to the color ratio instruction information in the instruction information to obtain the specific image.
S3: the specific image information is projected.
Further, in order to avoid projecting excessive light during projection, the background of the specific image is also filled in black when color filling is performed. The black background is not cast on the optically addressed liquid crystal light valve 3 and therefore does not cause the photoconductive material to absorb light and undergo a conductivity change. The background mentioned in the embodiment refers to: when the projection light is irradiated, the portion other than the specific image is removed.
Example 3
The present embodiment provides a liquid crystal light valve system based on embodiment 1, which includes a light addressable liquid crystal light valve 3 and the projection imaging apparatus provided in embodiment 1; the projection imaging device 2 is used to project image information onto the optically addressed liquid crystal light valve 3.
Specifically, the liquid crystal light valve system in this embodiment, as shown in fig. 1, includes a main laser generator 1, a projection imaging device 2, an optically addressed liquid crystal light valve 3, a polarizer 4, an imaging system 5, a beam splitter 6, a target surface 7, and a detection system 8; when the main laser accompanied by the graphic information is transmitted to the light-addressed liquid crystal light valve 3, under the condition that the light-addressed liquid crystal light valve 3 is not addressed, the polarization direction of the main laser passing through the light-addressed liquid crystal light valve 3 is not changed, and is orthogonal to the polarization direction of the polarizer, so that the light beam cannot pass through, and therefore cannot reach the imaging detection system 8 behind (the imaging detection system 8 in this embodiment refers to the polarizer 4, the imaging system 5, the beam splitter 6, the target surface 7 and the detection system 8); under the addressing conditions of the optically addressed liquid crystal light valve 3, namely: when the specific image projected by the projection imaging device 2 is transmitted to the light-addressed liquid crystal light valve 3, the specific pattern is projected on the photoconductive thin plate 9 of the light-addressed liquid crystal light valve 3, the conductivity of the irradiated photoconductive thin plate 9 is greatly increased, so that the voltage applied by the driving device can fall on the liquid crystal 17, the direction of the liquid crystal 17 is adjusted, the direction of the liquid crystal 17 determines the polarization direction of the light beam, the transmittance is further determined, and the main laser passes through the system to transmit the pattern information to the imaging system 5 and finally reaches the target surface 7 and the detection system 8.
In the existing liquid crystal light valve system, most addressing light used by the optical addressing light valve is laser, and because the light beam output by the laser is a single-point Gaussian light beam, the problems of uneven light beam edge, scattered light spots in the addressing process and the like exist. Based on this, the application provides a liquid crystal light valve system, the projection light beam in the projection imaging device 2 in the liquid crystal light valve system is mixed wave light with adjustable color, when the liquid crystal light valve system is applied, the proportion of each wave band in the mixed wave can be controlled by fine tuning the color, and then the voltage is controlled to reach the size of the liquid crystal 17 layer, thereby avoiding the device damage caused by adjusting the laser intensity to control the voltage to reach the size of the liquid crystal 17 layer in the prior art; in addition, because the projection has the advantages of deformity correction property and oblique incidence realization, when the projection is applied to a liquid crystal light valve system, the trouble of light path adjustment caused by the fact that the addressing light and the main laser are combined into the same light path can be avoided; in addition, compared with Gaussian laser, the projection beam has the advantages of uniform beam, wide beam spectrum, adjustable intensity of each part and no scattered light spot, avoids the processes of Gaussian beam shaping, laser beam expanding, graphical laser and the like, and simplifies the light path structure.
Further, since the conventional structure of the optically addressed liquid crystal light valve 3 generally comprises the conductive film 15, the photoconductive thin plate 9, the liquid crystal 17, the conductive film 15 and the glass substrate 18 which are sequentially arranged from top to bottom, considering that the main laser generator 1 is generally high-energy laser, irradiation of the high-energy laser on the optically addressed liquid crystal light valve 3 generates a large amount of heat, and the thermal effect has a great influence on the performance of the liquid crystal 17 in the optically addressed liquid crystal light valve 3, thereby affecting the function of the optically addressed liquid crystal light valve 3. Based on this, in the present application, the fluid flow channel 16 is disposed on the photoconductive thin plate 9 in the light-addressed liquid crystal light valve 3 for flowing the cooling fluid, as shown in fig. 2 and 3, during the use process, the cooling fluid is introduced into the fluid flow channel 16 to evacuate the heat generated during the main laser irradiation process, so as to greatly reduce the influence of the thermal effect on the performance of the liquid crystal 17, and further avoid influencing the function of the light-addressed liquid crystal light valve 3.
Specifically, in consideration of the fact that the length direction of the photoconductive sheet 9 is longer than the width direction, the fluid flow channel 16 is provided in the length direction of the photoconductive sheet 9 in the present embodiment in order to increase the cooling distance and enhance the cooling effect.
The fluid flow path 16 provided in the present embodiment is explained below:
the first fluid flow channel 16 provided in this embodiment is shown in fig. 4, and includes a transversely disposed fluid inlet channel 10 and a fluid return channel 11, and a plurality of vertically disposed fluid cooling channels 12;
wherein, the inlet of the fluid inlet channel 10 is arranged on the left end face of the photoconductive sheet 9 (corresponding to the top in fig. 4), the outlet of the fluid inlet channel 10 is arranged in the photoconductive sheet 9 and is communicated with the inlets of the plurality of fluid cooling channels 12, the outlets of the plurality of fluid cooling channels 12 are connected with the inlet of the fluid return channel 11 arranged in the photoconductive sheet 9, and the outlet of the fluid return channel 11 is arranged on the right end face of the photoconductive sheet 9 (corresponding to the bottom in fig. 4).
When the cooling liquid enters the fluid flow channels 16 through the inlet of the fluid inlet channel 10, the cooling liquid enters each fluid cooling channel 12 through the outlet of the fluid inlet channel 10, so as to cool the photoconductive sheet 9 at different positions, and then flows out of the photoconductive sheet 9 through the fluid return channel 11. Preferably, in order to allow the heat-absorbed coolant to rapidly exit the photoconductive sheet 9, the tube diameter of the fluid cooling channel 12 is smaller than the tube diameters of the fluid inlet channel 10 and the fluid return channel 11, and preferably the sum of the tube diameters of all the fluid cooling channels 12 is close to the tube diameters of the fluid inlet channel 10 and the fluid return channel 11. Besides, when the pipe diameter of the fluid cooling channel 12 is set to be smaller, more fluid cooling channels 12 can be arranged on the photoconductive thin plate 9 with the same area, and further the temperature can be better reduced.
Furthermore, since the most used part of the light-addressable liquid crystal light valve 3 is the middle part when the light-addressable liquid crystal light valve 3 is used, that is, the main laser and the addressing light are generally irradiated on the center position of the light-addressable liquid crystal light valve 3, the part generating the most heat is the center position of the light-addressable liquid crystal light valve 3, and therefore, in the process of arranging the fluid flow channel 16, the dense fluid cooling channel 12 is arranged at the center position of the photoconductive thin plate 9, and the less fluid cooling channel 12 is arranged at the edge position of the photoconductive thin plate 9, so that the production cost is reduced while the cooling effect is ensured.
Further, in order to avoid the influence of the introduced cooling liquid on the optical path transmission of the main laser and/or the addressing light, in the embodiment, the refractive index of the cooling liquid is adjusted by the refractive index matching liquid, so that the refractive index of the cooling liquid is the same as that of the photoconductive thin plate 9.
The second fluid flow path 16 provided in this embodiment is shown in fig. 5, and includes a primary fluid flow path 13 and a secondary fluid flow path 14;
the main fluid flow channel 13 is a linear channel, the inlet of the main fluid flow channel 13 is arranged on the left end face of the photoconductive thin plate 9, and the outlet of the main fluid flow channel 13 is arranged on the right end face of the photoconductive thin plate 9; the secondary fluid flow channel 14 is a circular channel, and the secondary fluid flow channel 14 is provided in the photoconductive sheet 9 and communicates with the primary fluid flow channel 13.
When the cooling liquid enters the fluid flow channel 16 through the inlet of the main fluid flow channel 13, the cooling liquid enters the secondary fluid cooling channel 12 through the main fluid flow channel 13, so that different positions of the photoconductive sheet 9 are cooled by heat dissipation through the main fluid flow channel 13 and the secondary fluid flow channel 14, and then the cooling liquid flows out of the photoconductive sheet 9 through the main fluid flow channel 13.
Similarly, in order to allow the heat-absorbed coolant to rapidly exit the photoconductive sheet 9, the pipe diameters of the inlet and outlet of the main fluid flow channel 13 are set to be slightly larger, preferably the sum of the pipe diameter of the main fluid flow channel 13 and the pipe diameter of the secondary fluid flow channel 14.
Further, since the optically addressed liquid crystal light valve 3 is used in a specific application, the most of the parts used are the middle parts, i.e. the main laser and the addressing light are generally irradiated on the center position of the optically addressed liquid crystal light valve 3, and therefore, the part generating the most heat is the center position of the optically addressed liquid crystal light valve 3, and based on this, in the setting process of the fluid flow channel 16, both the main fluid flow channel 13 and the secondary fluid flow channel 14 are disposed in the middle of the photoconductive thin plate 9.
The second fluid flow path 16 further simplifies the production cost with respect to the first fluid flow path 16, and only the heat dissipation portion of the central portion is taken into consideration, and the heat dissipation portion of the edge portion is not taken into consideration, so that the light-addressable liquid crystal light valve 3 having the second fluid flow path 16 is more advantageous in a low-power addressing system, whereas the light-addressable liquid crystal light valve 3 having the first fluid flow path 16 is more advantageous in a high-power addressing system.
It should be noted that the above embodiment of the fluid flow channel 16 is only schematically illustrated, and not all embodiments of the present disclosure may be configured as shown in fig. 6 or in other manners when being specifically implemented.
Further, in order to further reduce the production cost, the photoconductive sheet 9 in the present embodiment is a BSO photoconductive sheet provided as a commercially available one.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A projection imaging device is characterized by comprising a receiving module, a generating module and a projection module;
the receiving module is used for receiving instruction information of a user;
the generating module is used for generating a corresponding specific image according to the instruction information;
the projection module is used for projecting the specific image.
2. A projection imaging apparatus according to claim 1, wherein the generating module includes an image generating unit and a specific image generating unit;
the image generating unit is used for generating a corresponding image according to the image instruction information in the instruction information;
and the specific image generating unit is used for carrying out color filling on the image according to the color proportion instruction information in the instruction information to obtain the specific image.
3. A projection imaging apparatus according to claim 2, wherein the generation module further comprises a background generation unit, and the background generation unit is configured to fill the background of the specific image with black.
4. A projection method of a projection imaging apparatus according to any one of claims 1 to 3, comprising the steps of:
s1: receiving instruction information of a user;
s2: generating corresponding specific image information according to the instruction information;
s3: projecting the specific image information.
5. A projection method of a projection imaging apparatus according to claim 4, wherein said S2 comprises the sub-steps of:
s21: generating a corresponding image according to image instruction information in the instruction information;
s22: and performing color filling on the image according to the color ratio instruction information in the instruction information to obtain the specific image.
6. A projection method of a projection imaging apparatus according to claim 5, wherein said S2 further comprises the sub-steps of:
filling the background of the specific image in black.
7. A liquid crystal light valve system, comprising an optically addressed liquid crystal light valve (3) and a projection imaging device according to any of claims 1-3;
the projection imaging device (2) is used for projecting the image information onto the light-addressing liquid crystal light valve (3).
8. A liquid crystal light valve system according to claim 7, characterized in that said optically addressed liquid crystal light valve (3) comprises a photoconductive thin plate (9), a liquid crystal (17) and a glass substrate (18);
the photoconductive thin plate (9), the liquid crystal (17) and the glass substrate (18) are sequentially arranged from top to bottom, and conductive films (15) are arranged on one side, away from the liquid crystal (17), of the photoconductive thin plate (9) and one side, close to the liquid crystal (17), of the glass substrate (18).
9. A liquid crystal light valve system according to claim 8, characterized in that the photoconductive plate (9) is provided as a BSO photoconductive plate.
10. A liquid crystal light valve system as claimed in claim 8 or 9, characterized in that said photoconductive thin plate (9) is provided with fluid flow channels (16) for flowing a cooling fluid therethrough.
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| CN202111262875.5A CN113992901A (en) | 2021-10-28 | 2021-10-28 | Projection imaging device, use method of projection imaging device and liquid crystal light valve system |
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| CN202111262875.5A CN113992901A (en) | 2021-10-28 | 2021-10-28 | Projection imaging device, use method of projection imaging device and liquid crystal light valve system |
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| CN103365413A (en) * | 2012-03-22 | 2013-10-23 | 株式会社理光 | Information processing device, computer-readable storage medium and projecting system |
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2021
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| CN1591097A (en) * | 2003-08-25 | 2005-03-09 | 株式会社日立制作所 | Liquid crystal panel device and an apparatus using the same therein |
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| US20120069305A1 (en) * | 2010-09-21 | 2012-03-22 | Seiko Epson Corporation | Cooling device and projector |
| CN103365413A (en) * | 2012-03-22 | 2013-10-23 | 株式会社理光 | Information processing device, computer-readable storage medium and projecting system |
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