CN107728415B - Ultra-short focal length projector and polarizing plate adjustment and optical system inspection method thereof - Google Patents
Ultra-short focal length projector and polarizing plate adjustment and optical system inspection method thereof Download PDFInfo
- Publication number
- CN107728415B CN107728415B CN201710983768.9A CN201710983768A CN107728415B CN 107728415 B CN107728415 B CN 107728415B CN 201710983768 A CN201710983768 A CN 201710983768A CN 107728415 B CN107728415 B CN 107728415B
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- China
- Prior art keywords
- platform
- polarizing plate
- projection lens
- reflector
- base
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003287 optical effect Effects 0.000 title claims abstract description 12
- 238000007689 inspection Methods 0.000 title abstract description 6
- 238000005286 illumination Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
- Microscoopes, Condenser (AREA)
Abstract
An ultra-short-focus projector, a polarizing plate adjustment and optical system inspection method thereof, a light source cooling fan, an illumination system unit, an illumination system cooling device, a projection lens and a polarizing plate which are mounted on a platform; the reflecting mirror supporting device is arranged on the platform and positioned at the side edge of the projection lens, the reflecting mirror is connected with the reflecting mirror supporting device in a sliding mode, and the reflecting mirror can slide to the front side of the projection lens; a base is arranged below the platform, a rotating piece is arranged between the platform and the base, and a rotating platform structure is formed between the platform and the base. The platform is rotated 180 degrees relative to the base, the reflector is pulled out, the reflector is positioned on the front side of the projection lens, light emitted by the projection lens is reflected by the reflector and irradiates on the original screen, the polarizing plate is adjusted by using the polarizing plate adjusting screw, the optimal position of the polarizing plate is determined by observing an image on the screen, and then the polarizing plate adjusting screw is fastened, so that the platform is rotated 180 degrees and pulled back to the reflector.
Description
Technical Field
The present invention relates to a projector and a method for adjusting a polarizing plate and inspecting an optical system thereof, and more particularly, to an ultra-short focal length projector and a method for adjusting a polarizing plate and inspecting an optical system thereof.
Background
The existing ultra-short focal projector comprises a platform, a light source arranged on the platform, a light source cooling fan matched with the light source, an illumination unit, an illumination cooling device, a projection lens and a polarizing plate fixed by polarizing plate adjusting screws. When the device is used, light emitted by the projection lens is directly projected onto the screen, when the polarizing plate is adjusted through the polarizing plate adjusting screw, an operator can shield the light emitted by the projection lens, and in the adjusting process, an image on the screen cannot be completely and clearly observed, so that troubles are brought to accurately adjusting the position of the polarizing plate, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide an ultra-short-focus projector which has a simple structure, does not have any influence on a projection image when adjusting the position of a polarizing plate, is accurate in adjustment, saves time and labor, and overcomes the defects of the prior art, and a polarizing plate adjustment and optical system inspection method thereof.
The invention relates to an ultra-short focal projector, which comprises a platform, a light source arranged on the platform, a light source cooling fan matched with the light source, an illumination system unit, an illumination system cooling device, a projection lens and a polarizing plate fixed by polarizing plate adjusting screws; a reflector supporting device for supporting the reflector is arranged on the side edge of the projection lens on the platform, the reflector is connected with the reflector supporting device in a sliding mode, and the reflector can slide to the front side of the projection lens; a base is arranged below the platform, a rotating piece is arranged between the platform and the base, and a rotating platform structure is formed between the platform and the base.
The platform is connected with the base through a vertical shaft and/or a bearing.
The invention relates to a method for adjusting the polarizing plate and checking the optical system of an ultra-short focal projector, which comprises a platform, a light source arranged on the platform, a fan for cooling the light source matched with the light source, an illumination unit, a device for cooling the illumination system, a projection lens and a polarizing plate fixed by polarizing plate adjusting screws; a reflector supporting device for supporting the reflector is arranged on the side edge of the projection lens on the platform, the reflector is connected with the reflector supporting device in a sliding mode, and the reflector can slide to the front side of the projection lens; a base is arranged below the platform, a rotating piece is arranged between the platform and the base, and a rotating platform structure is formed between the platform and the base; the platform is connected with the base through a vertical shaft and/or a bearing; the method comprises the following steps: the platform is rotated 180 degrees relative to the base, the reflector is pulled out, the reflector is positioned on the front side of the projection lens, light rays emitted by the projection lens are reflected by the reflector and then irradiate on an original screen, the polarizing plate is adjusted by using polarizing plate adjusting screws, the optimal position of the polarizing plate is determined by observing images on the screen, then the polarizing plate adjusting screws are fastened, and finally the platform is rotated back 180 degrees and pulled back to the reflector.
The ultra-short focal projector can rotate the platform by 180 degrees and pull out the reflecting mirror when the polarizing plate is adjusted, so that the reflecting mirror is positioned at the front side of the projection lens, light rays emitted by the projection lens are reflected by the reflecting mirror and then irradiate on the original screen, namely, the projected light rays do not pass through one side of the polarizing plate any more, an operator can adjust the polarizing plate by using the polarizing plate adjusting screw, the light rays are not blocked, the complete and clear image on the screen during adjustment is ensured, the image can be observed conveniently during adjustment, the time and the labor are saved during adjustment of the polarizing plate and the inspection of an optical system, the adjustment is convenient, the structure of the supporting device of the reflecting mirror is simple, and the sliding is convenient.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Detailed Description
Example 1:
as shown in fig. 1: the ultra-short focal projector of the present invention comprises a stage 1, a light source 8 mounted on the stage 1, a light source cooling fan 9 matching with the light source 8, an illumination unit 7, an illumination cooling device 5, a projection lens 3, and a polarizing plate fixed by polarizing plate adjusting screws 6.
The mirror support device 2 for supporting the mirror 4 is fixedly arranged on the platform 1 and positioned at the side edge of the projection lens 3, and the mirror 4 is connected with the mirror support device 2 in a sliding manner, namely, a slide block connection mode is utilized, other sliding structures can be selected, and only the mirror 4 is ensured to slide relatively relative to the mirror support device 4. The reflecting mirror 4 can slide to the front side of the projection lens 3, so that the light rays emitted by the projection lens 3 can be reflected on the reflecting mirror 4.
A base 10 is arranged below the platform 1, a rotating piece is arranged between the platform 1 and the base 10, and a rotating platform structure is formed between the platform 1 and the base 10. The platform 1 and the base 10 may be connected by vertical shafts and/or bearings. The platform 1 can be rotated 180 degrees relative to the base 10 by hand, and a stop can be provided when stopped.
When the polarizing plate is adjusted, the platform 1 can be rotated 180 degrees, the reflecting mirror 4 is pulled out, the reflecting mirror 4 is positioned at the front side of the projection lens 3, light emitted by the projection lens 3 irradiates on an original screen after being reflected by the reflecting mirror 4, namely, the projected light does not pass through one side of the polarizing plate any more, an operator can not shield the light when adjusting the polarizing plate by using the polarizing plate adjusting screw 6, the complete and clear image on the screen during adjustment is ensured, the image can be observed conveniently during adjustment, time and labor are saved, the adjustment is convenient, the structure of the reflecting mirror supporting device 2 is simple, and the sliding is convenient. After adjustment, the mirror is turned 180 degrees again and the mirror 4 is pulled back.
Example 2:
As shown in fig. 1: the invention relates to a method for adjusting a polarizing plate and checking an optical system of an ultra-short focal projector, wherein the ultra-short focal projector comprises a platform 1, a light source 8 arranged on the platform 1, a light source cooling fan 9 matched with the light source 8, an illumination unit 7, an illumination device 5, a projection lens 3 and a polarizing plate fixed by polarizing plate adjusting screws 6.
The mirror support device 2 for supporting the mirror 4 is fixedly arranged on the platform 1 and positioned at the side edge of the projection lens 3, and the mirror 4 is connected with the mirror support device 2 in a sliding manner, namely, a slide block connection mode is utilized, other sliding structures can be selected, and only the mirror 4 is ensured to slide relatively relative to the mirror support device 4. The reflecting mirror 4 can slide to the front side of the projection lens 3, so that the light rays emitted by the projection lens 3 can be reflected on the reflecting mirror 4.
A base 10 is arranged below the platform 1, a rotating piece is arranged between the platform 1 and the base 10, and a rotating platform structure is formed between the platform 1 and the base 10. The platform 1 and the base 10 may be connected by vertical shafts and/or bearings. The platform 1 can be rotated 180 degrees relative to the base 10 by hand, and a stop can be provided when stopped.
The method for adjusting the polarizing plate and checking the optical system of the ultra-short focal projector comprises the following steps: the platform 1 is rotated 180 degrees relative to the base 10, the reflector 4 is pulled out, the reflector 4 is positioned at the front side of the projection lens 3, light rays emitted by the projection lens 3 are reflected by the reflector 4 and then irradiate the original screen, the polarizing plate is adjusted by using the polarizing plate adjusting screw 6, the optimal position of the polarizing plate is determined by observing an image on the screen, then the polarizing plate adjusting screw 6 is fastened, and finally the platform 1 is rotated 180 degrees and pulled back to the reflector 4.
The operator can utilize the polarizing plate adjusting screw 6 to adjust the polarizing plate, so that the light is not blocked, the complete and clear image on the screen during adjustment is ensured, the image can be observed conveniently during adjustment, the time and labor are saved during the adjustment of the polarizing plate and the inspection of the optical system, the adjustment is convenient, the structure of the reflector supporting device 2 is simple, and the sliding is convenient.
Claims (1)
1. A method for adjusting a polarizing plate and checking an optical system of an ultra-short focal projector is characterized in that: the ultra-short-focus projector comprises a platform (1), a light source (8) arranged on the platform (1), a light source cooling fan (9) matched with the light source (8), an illumination unit (7), an illumination cooling device (5), a projection lens (3) and a polarizing plate fixed by a polarizing plate adjusting screw (6); the method is characterized in that: a reflector supporting device (2) for supporting a reflector (4) is arranged on the platform (1) and positioned at the side edge of the projection lens (3), the reflector (4) is connected with the reflector supporting device (2) in a sliding mode, and the reflector (4) can slide to the front side of the projection lens (3); a base (10) is arranged below the platform (1), a rotating piece is arranged between the platform (1) and the base (10), and a rotating platform structure is formed between the platform (1) and the base (10);
the platform (1) is connected with the base (10) through a vertical shaft and/or a bearing;
the method comprises the following steps: the method comprises the steps of rotating a platform (1) for 180 degrees relative to a base, pulling out a reflecting mirror (4), enabling the reflecting mirror (4) to be located on the front side of a projection lens (3), reflecting light emitted by the projection lens (3) through the reflecting mirror (4) and then irradiating the light on an original screen, adjusting a polarizing plate through a polarizing plate adjusting screw (6), determining the optimal position of the polarizing plate through observing an image on the screen, fastening the polarizing plate adjusting screw (6), and finally rotating the platform (1) back for 180 degrees and pulling back the reflecting mirror (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983768.9A CN107728415B (en) | 2017-10-20 | 2017-10-20 | Ultra-short focal length projector and polarizing plate adjustment and optical system inspection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710983768.9A CN107728415B (en) | 2017-10-20 | 2017-10-20 | Ultra-short focal length projector and polarizing plate adjustment and optical system inspection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107728415A CN107728415A (en) | 2018-02-23 |
| CN107728415B true CN107728415B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710983768.9A Active CN107728415B (en) | 2017-10-20 | 2017-10-20 | Ultra-short focal length projector and polarizing plate adjustment and optical system inspection method thereof |
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| CN (1) | CN107728415B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113867092A (en) * | 2021-08-19 | 2021-12-31 | 闽南理工学院 | Novel intelligent adjustment and calibration system for curved-surface reflection cup of ultra-short-focus display lens |
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| CN1175707A (en) * | 1996-08-19 | 1998-03-11 | 精工爱普生株式会社 | Projection type display device |
| CN1510454A (en) * | 2002-12-24 | 2004-07-07 | ������������ʽ���� | Case for optical element, optical device and projector |
| CN1532624A (en) * | 2003-03-19 | 2004-09-29 | 台达电子工业股份有限公司 | Light path regulator of optical machine and rear-projector with said regulator |
| CN1882065A (en) * | 2005-06-14 | 2006-12-20 | 索尼株式会社 | Projection television apparatus |
| CN101533212A (en) * | 2008-03-14 | 2009-09-16 | 深圳华强三洋技术设计有限公司 | Fan component and liquid crystal projecting device adopting the fan component |
| CN103353704A (en) * | 2013-06-25 | 2013-10-16 | 深圳市安华光电技术有限公司 | Projector having direct projection mode and reflecting projection mode |
| CN206292517U (en) * | 2016-12-08 | 2017-06-30 | 广东建业显示信息技术有限公司 | A kind of ultrashort burnt reflective projection machine |
| CN106990662A (en) * | 2017-05-15 | 2017-07-28 | 海信集团有限公司 | A kind of governor motion of projector's mean camber speculum and projector |
| CN207380436U (en) * | 2017-10-20 | 2018-05-18 | 中国华录·松下电子信息有限公司 | Ultra short focal projector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7686458B2 (en) * | 2004-08-18 | 2010-03-30 | Mitsubishi Electric Corporation | Supporting mechanism of reflector and projection apparatus |
-
2017
- 2017-10-20 CN CN201710983768.9A patent/CN107728415B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175707A (en) * | 1996-08-19 | 1998-03-11 | 精工爱普生株式会社 | Projection type display device |
| CN1510454A (en) * | 2002-12-24 | 2004-07-07 | ������������ʽ���� | Case for optical element, optical device and projector |
| CN1532624A (en) * | 2003-03-19 | 2004-09-29 | 台达电子工业股份有限公司 | Light path regulator of optical machine and rear-projector with said regulator |
| CN1882065A (en) * | 2005-06-14 | 2006-12-20 | 索尼株式会社 | Projection television apparatus |
| CN101533212A (en) * | 2008-03-14 | 2009-09-16 | 深圳华强三洋技术设计有限公司 | Fan component and liquid crystal projecting device adopting the fan component |
| CN103353704A (en) * | 2013-06-25 | 2013-10-16 | 深圳市安华光电技术有限公司 | Projector having direct projection mode and reflecting projection mode |
| CN206292517U (en) * | 2016-12-08 | 2017-06-30 | 广东建业显示信息技术有限公司 | A kind of ultrashort burnt reflective projection machine |
| CN106990662A (en) * | 2017-05-15 | 2017-07-28 | 海信集团有限公司 | A kind of governor motion of projector's mean camber speculum and projector |
| CN207380436U (en) * | 2017-10-20 | 2018-05-18 | 中国华录·松下电子信息有限公司 | Ultra short focal projector |
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| Publication number | Publication date |
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| CN107728415A (en) | 2018-02-23 |
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