CN201107538Y - Double mirror type double light sources light machine - Google Patents
Double mirror type double light sources light machine Download PDFInfo
- Publication number
- CN201107538Y CN201107538Y CNU2007200765668U CN200720076566U CN201107538Y CN 201107538 Y CN201107538 Y CN 201107538Y CN U2007200765668 U CNU2007200765668 U CN U2007200765668U CN 200720076566 U CN200720076566 U CN 200720076566U CN 201107538 Y CN201107538 Y CN 201107538Y
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- CN
- China
- Prior art keywords
- light source
- light
- catoptron
- bireflection
- mirror
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- Expired - Lifetime
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Abstract
The utility model relates to the technical field of digital projection technology, in particular to a double-reflector double-light source bare engine which includes two sets of symmetrical light source A, light source B as well as a reflector A and a reflector B. The two are outputted to the light path of a subsequent optical system and cross. The utility model mainly solves the technical problems that prism size is large, weight is large and manufacture cost is high and optical length is long and the prism materials absorb more beams when the beams pass through the prism in the existing device. The bare engine can acquire two or three different brightness; simultaneously, when the bare engine is used continuously, when one light source goes wrong, another light source can be automatically switched, thus avoiding the image from interrupting for a long time.
Description
Technical field:
The utility model relates to the digital projection technique field, the two light source ray machines of particularly a kind of bireflection mirror.
Background technology:
At present, existing pair of light source ray machine adopts to turn to prism to realize two light source set or switching mutually usually, and its structure is by two cover high-pressure sodium lamp and lamp power supplys, constitutes.But this prism volume is big, weight is big, manufacturing cost is high.And when light passes through prism, optical length, prism material absorbs also many to light.Moreover because prism boundary is many, the light losing total amount that transmission plane and reflecting surface cause is also bigger.
The utility model content:
The purpose of this utility model is to provide a kind of bireflection mirror two light source ray machines, solve mainly that the prism volume is big in the conventional device, weight is big, manufacturing cost is high, and when light passes through prism, optical length, prism material absorbs also many technical matterss to light, this ray machine can obtain two kinds or three kinds of different brightness, simultaneously, in the occasion that continues to use ray machine, when a light source breaks down, can automatically switch starts another light source, avoids the long-time interruption of image.
For addressing the above problem, the utility model is achieved in that
The two light source ray machines of a kind of bireflection mirror is characterized in that: it comprises two cover symmetrically arranged light source A, light source B and catoptron A, catoptron B, and the two light path that exports follow-up optical system to intersects.
The two light source ray machines of described bireflection mirror is characterized in that: this follow-up optical system comprises and being successively set on the output light path: light lens group, ultraviolet-IR-cut filter plate C, colour wheel, light tunnel, relay lens group, catoptron C, total reflection prism, digital micro-mirror imager chip and projection objective.
The two light source ray machines of described bireflection mirror is characterized in that: be respectively arranged with ultraviolet-IR-cut filter plate A, ultraviolet-IR-cut filter plate B between this light source A, light source B and catoptron A, the catoptron B.
The two light source ray machines of described bireflection mirror, it is characterized in that: the optical axis included angle of two light source output light paths and light lens group is less than 90 °.
The two light source ray machines of described bireflection mirror, it is characterized in that: two light sources are high-pressure sodium lamp.
The two light source ray machines of described bireflection mirror, it is characterized in that: catoptron A and catoptron B are installed on the catoptron support plate, and the catoptron support plate is connected by adjustment screw with mirror unit.
By said structure, the utility model compared with prior art has following advantage:
1, the utility model is realized three kinds of light source works mode switch at short notice by above-mentioned optical system and structure, both can avoid optical projection system to shut down for a long time, can realize the big luminous flux output of ray machine again, obtains the high brightness image.
2, the utility model has reduced weight, volume owing to adopted frivolous catoptron, has reduced cost, because catoptron has only an interface, and adopts reflectivity to reach highly reflecting films more than 98.5%, and light losing reduces greatly.
Description of drawings:
Fig. 1 is the optical system diagram of the two light source ray machines of the utility model bireflection mirror.
Fig. 2 is the two light source ray machine sectional structural maps of benzene utility model bireflection mirror.
Fig. 3 is light source reflector mounting structure figure in the utility model.
Among the figure:
1. high-pressure sodium lamp A, 2. high-pressure sodium lamp B,
3. ultraviolet-IR-cut filter plate A, 4. ultraviolet-IR-cut filter plate B,
5. catoptron A, 6. catoptron B,
7. light lens group, 8. ultraviolet-IR-cut filter plate C,
9. colour wheel, 10. smooth tunnel,
11. relay lens group, 12. catoptron C,
13. total reflection prism, 14. digital micro-mirror imager chips,
15. projection objective, 16. lamp ballast A,
17. lamp ballast B, 18. ray machine drive circuit boards,
19. aerofoil fan, 20. main bodys,
21. shell, 22. catoptron adjustment screw,
23. catoptron support plate A, 24. catoptron support plate B,
25. mirror unit.
Embodiment:
See also Fig. 1,2, it be the two light source ray machines of a kind of bireflection mirror of the utility model as shown in the figure: it comprises two cover symmetrically arranged light source A1, light source B2 and catoptron A5, catoptron B6, and the two light path that exports follow-up optical system to intersects.Be respectively arranged with ultraviolet-IR-cut filter plate A3, ultraviolet-IR-cut filter plate B4 between this light source A1, light source B2 and catoptron A5, the catoptron B6.Two light sources can be high-pressure sodium lamp.
This follow-up optical system comprises and being successively set on the output light path: light lens group 7, ultraviolet-IR-cut filter plate C8, colour wheel 9, light tunnel 10, relay lens group 11, catoptron C12, total reflection prism 13, digital micro-mirror imager chip 14 and projection objective 15.Wherein, the optical axis included angle of two light sources, 1,2 output light paths and light lens group 7 is less than 90 °, the light that light source sends will guarantee the utilization factor and the homogeneity of light thus with the fleet angle incident light source lens combination less to light lens group optical axis after mirror reflects.Two light sources in this ray machine provide stable electrical power by two lamp ballasts respectively, and the electric power of these two lamp ballasts comes from the power supply of ray machine outside again.
The utlity model has three kinds of light source works patterns.
In first and second mode of operations; these two light source A1 and light source B2 can choose one wantonly and be set to initial start; not luminous or luminous flux is lower than setting when this light source; the ray machine circuit will be controlled automatically and cut off this path; start another light source simultaneously; realize the switching of light source A and B at short notice, avoid optical projection system to shut down for a long time.The 3rd mode of operation is for starting light source A1 and light source B2 simultaneously, and ray machine obtains maximum output light flux thus.
The light that power supply A, B (high-pressure sodium lamp) send is behind ultraviolet-IR- cut filter plate 3,4, see through visible light, through catoptron 5,6 reflections, converge at the inlet of light tunnel 10 then through light lens group 7, this bundle visible light passes through the convergent point nearby ultraviolet of side-IR-cut filter plate 8, colour wheel 9, light tunnel 10, through relay lens group 11, catoptron 12, total reflection prism 13, be incident to digital micro-mirror imager chip 14, reflect visual light by 14 again, by 13, through projection objective 15 outgoing imaging to the screen.
In above-mentioned first and second mode of operations, the duty conversion of light source A and B, the high-pressure sodium lamp output light flux of being differentiated former work by circuit has no abnormal, if any unusually, then cut off this path automatically, start another light source, the position of catoptron 5,6 is adjusted, can be undertaken by three groups of adjustment screw 22, with the inlet of the convergence of rays point alignment light tunnel 10 that guarantees high-pressure sodium lamp.
Being preferred embodiment of the present utility model only in sum, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present utility model.
Claims (6)
1, the two light source ray machines of a kind of bireflection mirror, it is characterized in that: it comprises two cover symmetrically arranged light source A (1), light source B (2) and catoptron A (5), catoptron B (6), the two light path that exports follow-up optical system to intersects.
2, the two light source ray machines of bireflection mirror according to claim 1 is characterized in that: this follow-up optical system comprises and being successively set on the output light path: light lens group (7), ultraviolet-IR-cut filter plate C (8), colour wheel (9), light tunnel (10), relay lens group (11), catoptron C (12), total reflection prism (13), digital micro-mirror imager chip (14) and projection objective (15).
3, the two light source ray machines of bireflection mirror according to claim 1 is characterized in that: be respectively arranged with ultraviolet-IR-cut filter plate A (3), ultraviolet-IR-cut filter plate B (4) between this light source A (1), light source B (2) and catoptron A (5), the catoptron B (6).
4, according to claim 1 or the two light source ray machines of 2 or 3 described bireflection mirrors, it is characterized in that: the optical axis included angle of two light sources (1), (2) output light path and light lens group (7) is less than 90 °.
5, according to claim 1 or the two light source ray machines of 2 or 3 described bireflection mirrors, it is characterized in that: two light sources (1), (2) are high-pressure sodium lamp.
6, the two light source ray machines of bireflection mirror according to claim 3, it is characterized in that: catoptron A (5) and catoptron B (6) are installed on catoptron support plate (23), (24), and catoptron support plate (23), (24) and mirror unit (25) are connected by adjustment screw (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200765668U CN201107538Y (en) | 2007-11-09 | 2007-11-09 | Double mirror type double light sources light machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200765668U CN201107538Y (en) | 2007-11-09 | 2007-11-09 | Double mirror type double light sources light machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201107538Y true CN201107538Y (en) | 2008-08-27 |
Family
ID=39959349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200765668U Expired - Lifetime CN201107538Y (en) | 2007-11-09 | 2007-11-09 | Double mirror type double light sources light machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201107538Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8434876B2 (en) | 2008-12-08 | 2013-05-07 | Mitsubishi Electric Corporation | Projection type display apparatus having a light source device with improved light utilization efficiency |
| CN103727433A (en) * | 2013-12-20 | 2014-04-16 | 广州市雅江光电设备有限公司 | LED ring prism light source |
-
2007
- 2007-11-09 CN CNU2007200765668U patent/CN201107538Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8434876B2 (en) | 2008-12-08 | 2013-05-07 | Mitsubishi Electric Corporation | Projection type display apparatus having a light source device with improved light utilization efficiency |
| TWI412869B (en) * | 2008-12-08 | 2013-10-21 | Mitsubishi Electric Corp | Projection type display device |
| CN103727433A (en) * | 2013-12-20 | 2014-04-16 | 广州市雅江光电设备有限公司 | LED ring prism light source |
| CN103727433B (en) * | 2013-12-20 | 2016-07-06 | 广州市雅江光电设备有限公司 | A kind of LED ring type prism light source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI INESA ELECTRONICS OPTICAL DISPLAY CO., LT Free format text: FORMER NAME: SVA OPTICAL DISPLAY TECHNOLOGIES CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 200233 Xuhui District, Tianlin Road, No. 140, Patentee after: INESA ELECTRON OPTICAL DISPLAY CO., LTD. Address before: 200233 building 28, building 140, No. 4, Xuhui District, Shanghai, Tianlin Road Patentee before: SVA Optical Display Technologies Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161011 Address after: 200234 Shanghai, Tianlin Road, No. 140, building 2, building, 210B, 28 Patentee after: Shanghai electronic multimedia Co., Ltd. Address before: 200233 Xuhui District, Tianlin Road, No. 140, Patentee before: INESA ELECTRON OPTICAL DISPLAY CO., LTD. |
|
| CU03 | Publication of corrected utility model |
Correction item: Patentee|Address Correct: SHANGHAI INESA ELECTRONIC MULTIMEDIA CO., LTD.|200234 Shanghai, Tianlin Road, No. 140, building 2, building, 210B, 28 False: Shanghai electronic multimedia Co., Ltd.|200234 Shanghai, Tianlin Road, No. 140, building 2, building, 210B, 28 Number: 44 Volume: 32 |
|
| ERR | Gazette correction | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |