CN212540990U - Full-sealed optical machine of high-brightness single-chip liquid crystal projector - Google Patents
Full-sealed optical machine of high-brightness single-chip liquid crystal projector Download PDFInfo
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- CN212540990U CN212540990U CN202021863562.6U CN202021863562U CN212540990U CN 212540990 U CN212540990 U CN 212540990U CN 202021863562 U CN202021863562 U CN 202021863562U CN 212540990 U CN212540990 U CN 212540990U
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 title claims abstract description 36
- 230000017525 heat dissipation Effects 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 238000003384 imaging method Methods 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 5
- 239000003570 air Substances 0.000 description 11
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000012080 ambient air Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000276498 Pollachius virens Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a high bright monolithic liquid crystal projector omniseal ray apparatus, which comprises a housin, locate the light source system in the casing in proper order, imaging system and camera lens, and inner loop fan and cold and hot exchanger, imaging system is including the first lens that sets gradually, heat insulating glass, display screen and second lens, heat insulating glass forms first passageway with the display screen, form the second passageway between display screen and the second lens, form the heat dissipation cavity between second lens and the camera lens, inner loop fan locates in the heat dissipation cavity, in the heat dissipation cavity is located to cold and hot exchanger's heat transfer end, outside the heat dissipation cavity is located to cold and hot exchanger's cooling end, inner loop fan, cold and hot exchanger, first passageway, second passageway and heat dissipation cavity put through in order to constitute one closed circulating sealed air flow way. The utility model provides a problem that original optical engine luminance can not be done highly, can satisfy 400 LM's totally enclosed optical engine's use, improved optical engine's performance and application field greatly.
Description
Technical Field
The utility model relates to a projecting apparatus technical field especially discloses a bright monolithic liquid crystal projector totally enclosed ray apparatus.
Background
A single chip liquid crystal projector uses a full color TFT liquid crystal screen as a light valve, and by means of a Kohler lighting system with certain design, the projector comprises a light source, a condenser lens, a front Fresnel lens, a liquid crystal screen, a rear Fresnel lens, a lens and the like, and images are magnified by projection.
Patent document with application number CN201020136312.2 discloses a monolithic liquid crystal projector fully-sealed optical machine, a reflection-type polarizer is added in front of the liquid crystal screen, and all optical devices are installed in a casing in a sealing manner, when the light source is transmitted to the reflection-type polarizer through a condenser lens and a front fresnel lens, under the reflection action of the reflection-type polarizer, about 50% of incident polarized light is reflected, and after the reflection of the liquid crystal screen, the light energy consumed by the liquid crystal screen is only 43-45%, which is not more than half of the original, the temperature of the liquid crystal screen is greatly reduced, even if no fan is used for forced cooling, the temperature on the liquid crystal screen is also in the allowable working range, and sealing and dust prevention can be realized. However, the air inside the optical system is in a static state, and heat generated by the light source irradiating on the liquid crystal screen cannot be quickly dissipated, so that the output brightness of the system is limited.
Although the temperature of the liquid crystal screen is reduced by performing reflection treatment on 50% of light which does not act on the liquid crystal screen in the prior art, the method is only suitable for a low-brightness projector within 100LM and cannot be used by an optical engine of a high-brightness projector.
Therefore, the existing single-chip liquid crystal projector fully-sealed optical machine cannot meet the requirement of an optical engine of a high-brightness projector, and is a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bright single liquid crystal projector totally enclosed ray apparatus aims at solving the technical problem that current single liquid crystal projector totally enclosed ray apparatus can't satisfy the optical engine use of highlight projecting apparatus.
The utility model provides a high bright monolithic liquid crystal projector omniseal ray apparatus, which comprises a housin, locate the light source system in the casing in proper order, imaging system and camera lens, and inner loop fan and cold and hot exchanger, imaging system is including the first lens that sets gradually, heat insulating glass, display screen and second lens, heat insulating glass forms first passageway with the display screen, form the second passageway between display screen and the second lens, form the heat dissipation cavity between second lens and the camera lens, inner loop fan locates in the heat dissipation cavity, in the heat dissipation cavity is located to cold and hot exchanger's heat transfer end, outside the heat dissipation cavity is located to cold and hot exchanger's cooling end, inner loop fan, cold and hot exchanger, first passageway, second passageway and heat dissipation cavity put through in order to constitute one closed circulation formula sealed air current channel.
Further, the cold-heat exchanger comprises a first cold-heat exchanger and a second cold-heat exchanger, the first cold-heat exchanger and the second cold-heat exchanger are sequentially mounted on the shell, the heat transfer end of the first cold-heat exchanger is arranged in the shell, and the cooling end of the first cold-heat exchanger is arranged outside the shell; the heat transfer end of the second heat exchanger is arranged in the shell, and the cooling end of the second heat exchanger is arranged outside the shell.
Further, the light source system comprises a light emitting source and a collecting lens, the light emitting source is arranged at the first opening end of the shell and sealed with the shell, and the collecting lens is arranged between the light emitting source and the first lens.
Further, the light emitting source is an LED light source.
Further, the internal circulation fan is a turbine axial flow fan and is used for driving air in the sealed optical machine to flow in a rapid circulation mode during working.
Further, the first lens and the second lens are both Fresnel lenses.
Further, the display screen is an LCD display screen.
Furthermore, a reflection-type polarizer is attached to the heat insulating glass.
Further, the lens is mounted at the second opening end of the shell and sealed with the shell.
Further, both ends of the cold-heat exchanger are provided with heat transfer fins.
The utility model discloses the beneficial effect who gains does:
the utility model provides a high bright monolithic liquid crystal projector omniseal ray apparatus, adopt the casing, light source system, imaging system, the camera lens, internal circulation fan and cold and heat exchanger, form first passageway between insulating glass and the display screen, form the second passageway between display screen and the second lens, form the heat dissipation cavity between second lens and the camera lens, the internal circulation fan, cold and heat exchanger, first passageway, second passageway and heat dissipation cavity put through in proper order in order to constitute one closed circulation formula sealed wind runner, thereby make the air in the seal space according to the runner circulation flow of design. The utility model provides a high bright monolithic liquid crystal projector totally enclosed ray apparatus has solved original optical engine luminance and can not be the high problem, according to the different highest totally enclosed optical engine's that can satisfy 400LM of structural design use, has improved optical engine's performance and application field greatly.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a fully sealed optical-mechanical device of a high-brightness single-chip liquid crystal projector provided by the present invention;
fig. 2 is a schematic view of a sealed air flow channel structure of an embodiment of the fully sealed optical-mechanical device of the high-brightness single-chip liquid crystal projector shown in fig. 1.
The reference numbers illustrate:
10. a housing; 20. a light source system; 30. an imaging system; 40. a lens; 50. an internal circulation fan; 60. a cold-heat exchanger; 31. a first lens; 32. heat insulating glass; 33. a display screen; 34. a second lens; 35. a reflective polarizer; 61. a first heat exchanger; 62. a second heat and cold exchanger; 21. a light emitting source; 22. a condenser lens.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a fully sealed optical machine for a high brightness single-chip liquid crystal projector, which includes a housing 10, a light source system 20, an imaging system 30, a lens 40, an internal circulation fan 50, and a heat exchanger 60 sequentially disposed in the housing 10, wherein the imaging system 30 includes a first lens 31 and a heat insulation glass 32 sequentially disposed, the display screen 33 and the second lens 34, the heat insulation glass 32 and the display screen 33 form a first channel, a second channel is formed between the display screen 33 and the second lens 34, a heat dissipation cavity is formed between the second lens 34 and the lens 40, the internal circulation fan 50 is arranged in the heat dissipation cavity, the heat transfer end of the cold-heat exchanger 60 is arranged in the heat dissipation cavity, the cooling end of the cold-heat exchanger 60 is arranged outside the heat dissipation cavity, and the internal circulation fan 50, the cold-heat exchanger 60, the first channel, the second channel and the heat dissipation cavity are sequentially communicated to form a closed circulation type sealed air flow channel.
In the above structure, the highlight single-chip lcd projector fully-sealed optical engine provided in this embodiment, the heat exchanger 60 includes a first heat exchanger 61 and a second heat exchanger 62, the first heat exchanger 61 and the second heat exchanger 62 are sequentially mounted on the housing 10, a heat transfer end of the first heat exchanger 61 is disposed in the housing 10, and a cooling end of the first heat exchanger 61 is disposed outside the housing 10; the heat transfer end of the second heat and cold exchanger 62 is disposed inside the casing 10, and the cooling end of the second heat and cold exchanger 62 is disposed outside the casing 10. The light source system 20 includes a light source 21 and a condenser 22, the light source 21 is disposed at the first opening end of the casing 10 and sealed with the casing 10, and the condenser 22 is disposed between the light source 21 and the first lens 31. In the present embodiment, the Light-Emitting source 21 is an LED (Light-Emitting Diode) Light source. The internal circulation fan 50 is a turbine axial flow fan, and is used for driving air in the sealed optical machine to flow in a rapid circulation manner during working. The first lens 31 and the second lens 34 each employ a fresnel lens. The display screen 33 is an LCD (Liquid Crystal display). A reflective polarizer 35 is attached to the insulating glass 32. The reflection type polarizer 35 is manufactured by 3M company, and the reflection type polarizer 35 does not consume energy, and when incident light is emitted from the condenser lens 22 and the first lens 31 to the reflection type polarizer 35, a part (about 50%) of the polarized light is reflected, so that the light projected to the incident side of the display screen 33 is greatly reduced, and the light is effectively utilized when projected to the liquid crystal screen 33, thereby reducing the temperature of the liquid crystal screen during operation. The lens 40 is mounted to the second open end of the housing 10 and sealed with the housing 10. The both ends of cold and heat exchanger 60 all are equipped with the heat transfer piece, and the heat transfer end that transmits cold and heat exchanger fast with the heat of inside through a air flow, and the heat is concentrated on the middle transmission base plate of exchanger, thereby the rethread leaks the cooling end of part and outside ambient air contact that flows and realizes the effect that the light output luminance that the inside heat transfer of sealed ray apparatus reduces inside LCD screen operating temperature and finally realizes sealed optical system outside in the middle of transmitting the environment with the heat by a wide margin outside.
As shown in fig. 1 and fig. 2, the working principle of the fully sealed optical engine of the high brightness single-chip liquid crystal projector according to the present embodiment is as follows:
the quick circulation operation in the wind runner of design that drives the air flow fast through individual inside turbine axial fan, with the heat transfer end of inside heat fast transfer to first cold heat exchanger 61 and second cold heat exchanger 62, concentrate the heat on the middle transmission base plate of cold heat exchanger 60 again, the rethread leaks in the middle of the cooling end of part and the outside ambient air contact that flows and transmits the heat to the environment outward, thereby realize the inside heat transfer of sealed ray apparatus to the outside, reduce inside LCD screen operating temperature and require within 80 degrees, the final effect that realizes sealed optical system's light output luminance and improve by a wide margin.
Compared with the prior art, the fully-sealed optical machine for the high-brightness single-chip liquid crystal projector provided by the embodiment adopts the shell, the light source system, the imaging system, the lens, the internal circulation fan and the heat exchanger, a first channel is formed between the heat insulation glass and the display screen, a second channel is formed between the display screen and the second lens, a heat dissipation cavity is formed between the second lens and the lens, and the internal circulation fan, the heat exchanger, the first channel, the second channel and the heat dissipation cavity are sequentially communicated to form a closed circulation type sealed air flow channel, so that air in the sealed space circularly flows according to the designed flow channel. The totally enclosed ray apparatus of high bright monolithic liquid crystal projector that this embodiment provided has solved the problem that original optical engine luminance can not be done highly, can satisfy 400 LM's totally enclosed optical engine's use according to structural design difference is the highest, has improved optical engine's performance and application range greatly.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The fully-sealed light machine of the high-brightness single-chip liquid crystal projector is characterized by comprising a shell (10), a light source system (20), an imaging system (30), a lens (40), an internal circulation fan (50) and a cold-heat exchanger (60) which are sequentially arranged in the shell (10), wherein the imaging system (30) comprises a first lens (31), heat insulation glass (32), a display screen (33) and a second lens (34) which are sequentially arranged, a first channel is formed between the heat insulation glass (32) and the display screen (33), a second channel is formed between the display screen (33) and the second lens (34), a heat dissipation cavity is formed between the second lens (34) and the lens (40), the internal circulation fan (50) is arranged in the heat dissipation cavity, and the heat transfer end of the cold-heat exchanger (60) is arranged in the heat dissipation cavity, the cooling end of the cold-heat exchanger (60) is arranged outside the heat dissipation cavity, and the internal circulation fan (50), the cold-heat exchanger (60), the first channel, the second channel and the heat dissipation cavity are communicated in sequence to form a closed circulating type sealed air flow channel.
2. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
the cold-heat exchanger (60) comprises a first cold-heat exchanger (61) and a second cold-heat exchanger (62), the first cold-heat exchanger (61) and the second cold-heat exchanger (62) are sequentially mounted on the shell (10), the heat transfer end of the first cold-heat exchanger (61) is arranged in the shell (10), and the cooling end of the first cold-heat exchanger (61) is arranged outside the shell (10); the heat transfer end of the second heat exchanger (62) is arranged in the shell (10), and the cooling end of the second heat exchanger (62) is arranged outside the shell (10).
3. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
the light source system (20) comprises a light emitting source (21) and a collecting lens (22), the light emitting source (21) is arranged at a first opening end of the shell (10) and sealed with the shell (10), and the collecting lens (22) is arranged between the light emitting source (21) and the first lens (31).
4. The highlight single-plate LCD projector hermetically sealed optical bench of claim 3,
the light emitting source (21) is an LED light source.
5. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
the internal circulation fan (50) is a turbine axial flow fan and is used for driving air in the sealed optical machine to flow in a rapid circulation mode during working.
6. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
the first lens (31) and the second lens (34) are both Fresnel lenses.
7. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
the display screen (33) is an LCD display screen.
8. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
a reflection-type polarizer (35) is attached to the heat insulating glass (32).
9. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
the lens (40) is mounted at the second opening end of the shell (10) and sealed with the shell (10).
10. The highlight single-plate liquid crystal projector hermetically sealed optical bench of claim 1,
and heat transfer sheets are arranged at two ends of the cold-heat exchanger (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021863562.6U CN212540990U (en) | 2020-08-31 | 2020-08-31 | Full-sealed optical machine of high-brightness single-chip liquid crystal projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021863562.6U CN212540990U (en) | 2020-08-31 | 2020-08-31 | Full-sealed optical machine of high-brightness single-chip liquid crystal projector |
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| Publication Number | Publication Date |
|---|---|
| CN212540990U true CN212540990U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021863562.6U Active CN212540990U (en) | 2020-08-31 | 2020-08-31 | Full-sealed optical machine of high-brightness single-chip liquid crystal projector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114706265A (en) * | 2022-04-14 | 2022-07-05 | 深圳市和天创科技有限公司 | Full-automatic refrigerating system of single-chip liquid crystal projector |
| US11733597B1 (en) | 2022-03-09 | 2023-08-22 | Changsha Pujiade Photoelectric Technology Co., Ltd | Heat radiating device of LCD projector |
-
2020
- 2020-08-31 CN CN202021863562.6U patent/CN212540990U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11733597B1 (en) | 2022-03-09 | 2023-08-22 | Changsha Pujiade Photoelectric Technology Co., Ltd | Heat radiating device of LCD projector |
| CN114706265A (en) * | 2022-04-14 | 2022-07-05 | 深圳市和天创科技有限公司 | Full-automatic refrigerating system of single-chip liquid crystal projector |
| CN114706265B (en) * | 2022-04-14 | 2024-04-30 | 深圳市和天创科技有限公司 | Full-automatic refrigerating system of monolithic liquid crystal projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High brightness single chip LCD projector fully sealed optical machine Granted publication date: 20210212 Pledgee: Agricultural Bank of China Limited Hunan Xiangjiang New Area Branch Pledgor: CHANGSHA CRE ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2024980009145 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |