CN102778808A - LED (Light Emitting Diode) high-definition digital projection machine and projection method - Google Patents
LED (Light Emitting Diode) high-definition digital projection machine and projection method Download PDFInfo
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- CN102778808A CN102778808A CN2012102920038A CN201210292003A CN102778808A CN 102778808 A CN102778808 A CN 102778808A CN 2012102920038 A CN2012102920038 A CN 2012102920038A CN 201210292003 A CN201210292003 A CN 201210292003A CN 102778808 A CN102778808 A CN 102778808A
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Abstract
The invention discloses an LED (Light Emitting Diode) high-definition digital projection machine and a projection method. In the year of 2010, the sinotype growth pushes the film industrial to the sinotype explosion, the annual film box office of China breaks through ****yuan, on one hand, the film shooting industrial of China steers to rapid development road, on the other hand, the cinema industrial of China develops rapidly along with the media industrial, digital high-definition cinema is accepted by most of film viewers. The LED high-definition digital projection machine comprises a projection machine shell (7), an LED light source (1) is installed in the projection machine shell, light emitted by the LED light source is irradiated on a condenser (2), a rear Fresnel lens (3) is arranged in front of the condenser, a liquid crystal panel (4) is arranged in front of the rear Fresnel lens, a front Fresnel lens (5) is arranged in front of the liquid crystal panel, and the front Fresnel lens is connected with a projection lens (6). The invention is used for the digital projection machine.
Description
Technical field:
the present invention relates to a kind of LED high-definition digital projector and projection method.
Background technology:
" Chinese style outburst " pushed moviemaking in
2010 " Chinese style growth "; Annual Chinese box office receipts broken 10,000,000,000; Chinese film is taken and is already driven towards the fast traffic lane on the one hand; Chinese on the other hand movie theatre industry is also along with the develop rapidly of medium industry, and the digital high-definition movie theatre receives numerous filmgoers' approval.Our national high definition movie theatre uses the import digital projector mostly at present, because the very expensive serious China's digital camera that hinders of price is extensively popularized.A cost performance of present domestic urgent need is high, the homemade digital high-definition projector of environmental protection and saving.
Summary of the invention:
the purpose of this invention is to provide a kind of LED high-definition digital projector and projection method of 2k high-definition digital that can import substitutes.
Above-mentioned purpose realizes through following technical scheme:
a kind of LED high-definition digital projector; Its composition comprises: the projector housing, in the described projector housing led light source is housed, and the light that described led light source will send is penetrated on condenser; Described condenser the place ahead is provided with the Fei Nier rear lens; Described luxuriant and rich with fragrance Neil rear lens the place ahead has liquid crystal board, and described liquid crystal board the place ahead has the Fei Nier front lens, and described luxuriant and rich with fragrance Neil front lens connects projection lens.
described LED high-definition digital projector; Described led light source is the luminous angles of 30 degree; Focal distance f=the 180mm of described condenser, the focal distance f=150-180mm of described Fresnel front lens and described luxuriant and rich with fragrance Neil rear lens, the focal distance f=300mm of described camera lens.
a kind of LED high-definition digital image projection method, the light that plurality of LEDs is sent converges a bit through compound lens, is collimated into parallel rays through luxuriant and rich with fragrance Buddhist nun's front lens and projects on the liquid crystal board, and liquid crystal board is illuminated; After another sheet Fei Nier rear lens focuses on liquid crystal panel image a bit, at last with projection objective with image projection to screen.
Beneficial effect:
1. the present invention have characteristics such as energy-conservation, life-span is long through use LED as high-definition digital projector light source, solved problems such as traditional xenon lamp high pollution, low light efficiency, poor stability.
2. the present invention adopt great power LED as high-definition digital projector light source, have improved digital projector serviceable life greatly.
High definition single chip liquid crystal plate and video connection device are used in
3. the present invention, have solved multiple form film projection problem.
4. the present invention connect light source and heat radiator through the eutectic solder technology, and the heat with led light source takes on the heat radiator faster, has solved the light decay problem that the LED hot stack causes.
5. the present invention to adopt LED be projection light source, it is simple in structure that high definition single chip liquid crystal plate is that signal source makes, manufacturing process is also very easy, exploitation and production cost significantly reduce.
Description of drawings:
accompanying drawing 1 is the structural representation of this product.
accompanying drawing 2 is working state figures of accompanying drawing 1.
Embodiment:
Embodiment 1:
a kind of LED high-definition digital projector; Its composition comprises: projector housing 7, in the described projector housing led light source 1 is housed, and the light that described led light source will send is penetrated on condenser 2; Described condenser the place ahead is provided with Fei Nier rear lens 3; Described luxuriant and rich with fragrance Neil rear lens the place ahead has liquid crystal board 4, and described liquid crystal board the place ahead has Fei Nier front lens 5, and described luxuriant and rich with fragrance Neil front lens connects projection lens 6.
described LED high-definition digital projector; Described led light source is the luminous angles of 30 degree; Focal distance f=the 180mm of described condenser, the focal distance f=150-180mm of described Fresnel front lens and described luxuriant and rich with fragrance Neil rear lens, the focal distance f=300mm of described camera lens.
Embodiment 2:
a kind of LED high-definition digital image projection method, the light that plurality of LEDs is sent converges a bit through compound lens, is collimated into parallel rays through luxuriant and rich with fragrance Buddhist nun's front lens and projects on the liquid crystal board, and liquid crystal board is illuminated; After another sheet Fei Nier rear lens focuses on liquid crystal panel image a bit, at last with projection objective with image projection to screen.
Embodiment 3:
Embodiment 4:
described LED high-definition digital projector; Described led light source is the luminous angles of 30 degree; Focal distance f=the 180mm of described condenser; Focal distance f=150 of described Fresnel front lens and described luxuriant and rich with fragrance Neil rear lens or 160 or 170 or 180mm, the focal distance f=300mm of described camera lens.
Claims (3)
1. LED high-definition digital projector; Its composition comprises: the projector housing is characterized in that: in the described projector housing led light source is housed, the light that described led light source will send is penetrated on condenser; Described condenser the place ahead is provided with the Fei Nier rear lens; Described luxuriant and rich with fragrance Neil rear lens the place ahead has liquid crystal board, and described liquid crystal board the place ahead has the Fei Nier front lens, and described luxuriant and rich with fragrance Neil front lens connects projection lens.
2. LED high-definition digital projector according to claim 1; It is characterized in that: described led light source is the luminous angles of 30 degree; Focal distance f=the 180mm of described condenser; Focal distance f=the 150-180mm of described Fresnel front lens and described luxuriant and rich with fragrance Neil rear lens, the focal distance f=300mm of described camera lens.
3. LED high-definition digital image projection method, it is characterized in that: the light that plurality of LEDs is sent converges a bit through compound lens, is collimated into parallel rays through luxuriant and rich with fragrance Buddhist nun's front lens and projects on the liquid crystal board, and liquid crystal board is illuminated; After another sheet Fei Nier rear lens focuses on liquid crystal panel image a bit, at last with projection objective with image projection to screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102920038A CN102778808A (en) | 2012-08-16 | 2012-08-16 | LED (Light Emitting Diode) high-definition digital projection machine and projection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102920038A CN102778808A (en) | 2012-08-16 | 2012-08-16 | LED (Light Emitting Diode) high-definition digital projection machine and projection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102778808A true CN102778808A (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102920038A Pending CN102778808A (en) | 2012-08-16 | 2012-08-16 | LED (Light Emitting Diode) high-definition digital projection machine and projection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102778808A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112522A (en) * | 2013-01-28 | 2013-05-22 | 苏州达方电子有限公司 | Lighting device with projective device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662402A (en) * | 1995-04-14 | 1997-09-02 | Samsung Aerospace Industries, Ltd. | Projector with detachable liquid crystal panel |
| CN2881720Y (en) * | 2005-11-18 | 2007-03-21 | 田超 | Projection amplification device |
| CN201004150Y (en) * | 2007-01-22 | 2008-01-09 | 哈尔滨宇宙光电子有限公司 | Optical source compensation device for LCD projector |
| CN202102227U (en) * | 2011-06-23 | 2012-01-04 | 无锡科技职业学院 | Light emitting diode (LED) projector |
| CN202257013U (en) * | 2011-09-29 | 2012-05-30 | 长沙赛科电子科技有限公司 | Projection light path device capable of being equipped with LCD panels in different specifications |
| CN102520567A (en) * | 2011-11-30 | 2012-06-27 | 哈尔滨固泰电子有限责任公司 | Digital projector |
| CN202837790U (en) * | 2012-08-16 | 2013-03-27 | 哈尔滨固泰电子有限责任公司 | Led high definition digital projector |
-
2012
- 2012-08-16 CN CN2012102920038A patent/CN102778808A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662402A (en) * | 1995-04-14 | 1997-09-02 | Samsung Aerospace Industries, Ltd. | Projector with detachable liquid crystal panel |
| CN2881720Y (en) * | 2005-11-18 | 2007-03-21 | 田超 | Projection amplification device |
| CN201004150Y (en) * | 2007-01-22 | 2008-01-09 | 哈尔滨宇宙光电子有限公司 | Optical source compensation device for LCD projector |
| CN202102227U (en) * | 2011-06-23 | 2012-01-04 | 无锡科技职业学院 | Light emitting diode (LED) projector |
| CN202257013U (en) * | 2011-09-29 | 2012-05-30 | 长沙赛科电子科技有限公司 | Projection light path device capable of being equipped with LCD panels in different specifications |
| CN102520567A (en) * | 2011-11-30 | 2012-06-27 | 哈尔滨固泰电子有限责任公司 | Digital projector |
| CN202837790U (en) * | 2012-08-16 | 2013-03-27 | 哈尔滨固泰电子有限责任公司 | Led high definition digital projector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112522A (en) * | 2013-01-28 | 2013-05-22 | 苏州达方电子有限公司 | Lighting device with projective device |
| CN103112522B (en) * | 2013-01-28 | 2015-10-21 | 苏州达方电子有限公司 | There is the lighting device of projection arrangement |
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Application publication date: 20121114 |
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| RJ01 | Rejection of invention patent application after publication |