CN1734347A - Method for improving life, color utilization efficiency, light brightness of projection light source - Google Patents
Method for improving life, color utilization efficiency, light brightness of projection light source Download PDFInfo
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- CN1734347A CN1734347A CN 200410058025 CN200410058025A CN1734347A CN 1734347 A CN1734347 A CN 1734347A CN 200410058025 CN200410058025 CN 200410058025 CN 200410058025 A CN200410058025 A CN 200410058025A CN 1734347 A CN1734347 A CN 1734347A
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Abstract
The invention relates to a method of improving projection light source life, color usage and luminance, which comprises the following steps: using one of the high-voltage mercury lamp, super-voltage mercury lamp, metal halide lamp, iodine tungsten lamp and xenon lamp as projection light source, wherein the more luminous light source is a base arrangement or multi-color auxiliary light source. When the color beam from color auxiliary light source adding to the projection light source reaches the need balance, the beam is output in the projection direction.
Description
Technical field
The present invention relates to a kind of method that improves projection light source life-span, look utilization ratio, luminance brightness, this method can be improved the projected light source condition, strengthens the utilization factor of the luminous energy of light source.
Background technology
Improving optical efficiency is the world subject in current projection ray machine field, in order to improve the utilization factor of light, recently the look separation and the scanning technique of rotating three four prisms invented by Philips company, the look that the rotation cylindrical mirror has been invented by Samsung company separates and scanning technique, attempts to improve the light beam utilization factor that projection light source produces.In existing projector, generally adopt the contour output light source of metal halide lamp or high-pressure sodium lamp, because the colour temperature height of these lamps, a little less than the red light intensity, blue or green light intensity is strong, referring to Fig. 7 (Fig. 7 is the ultrahigh pressure mercury lamp spectral curve).For this reason, Chinese patent 03102577.3 discloses a kind of projector, to be separated into the coloured light of red, green, blue from the light of light source, liquid crystal panel with modulation coloured light is adjusted respectively three coloured light, and then synthesize, should synthesize light through projection lens and project on the screen,, can not improve the brightness of coloured image though this patent can improve the colour balance of coloured image.Therefore, need to propose a kind of method that improves projection light source life-span, look utilization ratio, luminance brightness.
Summary of the invention
The objective of the invention is to propose a kind of method that improves projection light source life-span, look utilization ratio, luminance brightness, this method can be improved the projected light source condition, strengthening the utilization factor of the luminous energy of light source, is that benchmark reaches required colour balance with strong color of light brightness.
The objective of the invention is to realize: a kind of method that improves projection light source life-span, look utilization ratio, luminance brightness by following technical proposals, it is characterized in that: use a kind of in high-pressure sodium lamp, ultrahigh pressure mercury lamp, metal halide lamp, iodine-tungsten lamp, the xenon lamp as projection light source, with strong color of light brightness in the described projection light source is that benchmark is provided with one or more coloured secondary light sources, the colored light beam that coloured secondary light source is produced joins in the light beam of projection light source, reach required colour balance, described light beam is pressed projecting direction output.
Compared with the prior art the present invention has following advantage:
1, because the present invention utilizes coloured secondary light source that the weak energy coloured light in the projection light source is carried out reinforcement, be that benchmark reaches a new colour balance with strong color of light brightness, thereby, the utilization factor of raising projection light source, the luminance brightness of raising projection light source.
2, because the present invention utilizes coloured secondary light source that the weak energy coloured light in the projection light source is carried out reinforcement, not only can improve the brightness of projection light source, can also suitably reduce the output power of projection light source, thereby prolong the serviceable life of projection light source.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
One of Fig. 1, embodiments of the invention synoptic diagram
Two synoptic diagram of Fig. 2, embodiments of the invention
Three synoptic diagram of Fig. 3, embodiments of the invention
Four synoptic diagram of Fig. 4, embodiments of the invention
Five synoptic diagram of Fig. 5, embodiments of the invention
Six synoptic diagram of Fig. 6, embodiments of the invention
Fig. 7, ultrahigh pressure mercury lamp spectral curve
Embodiment
Embodiment one:
Referring to Fig. 1, a kind of method that improves projection light source life-span, look utilization ratio, luminance brightness, use a ultrahigh pressure mercury lamp 1 as projection light source, this light source center portion is provided with fluorescent tube 2, and this fluorescent tube will make projection light source form a no light zone at its light beam output terminal central part.A coloured secondary light source 3 is set in the side of this light source, present embodiment adopts red laser light source, the colored light beam that this light source produced is a red beam 5, the brightness of this red beam is that benchmark is provided with strong color of light brightness in the projection light source, light beam output terminal at ultrahigh pressure mercury lamp is provided with a foveal reflex mirror 4, red beam projects foveal reflex mirror central part from the side, form folded light beam then, this folded light beam is filled up just in no light zone, thus, described red beam just joins in the light beam of projection light source, reaches required colour balance, described light beam is pressed projecting direction output, promptly by identical projecting direction output.What the foveal reflex mirror in the present embodiment adopted is a kind of catoptron of establishing reflective membrane and forming that plates on the clear glass central area, the position of the reflective membrane of establishing that plates is corresponding with the no light zone of projection light source central part just, and reflective membrane can be silver-plated film or aluminizer.In the present embodiment, be not limited only to ultrahigh pressure mercury lamp, can adopt a kind of in high-pressure sodium lamp, ultrahigh pressure mercury lamp, metal halide lamp, iodine-tungsten lamp, the xenon lamp as projection light source as projection light source.In the present embodiment, described coloured secondary light source can be laser generator or led light source.Remove this, described coloured secondary light source can also other non-standard white electric light sources, for example have the electric light source of color filter.In the present embodiment, described secondary light source adopts a red laser light source, still, and according to the actual needs, described secondary light source can also adopt a plurality of red laser light sources, and can adopt polychromatic source settings arranged side by side such as red light source, green light source, yellow light sources, blue-light source.
Embodiment two:
Present embodiment is the improvement on the basis of embodiment one.Referring to Fig. 2, in the present embodiment, described colored light beam is a red beam, light beam output terminal central part in described projection light source is provided with a catoptron 6, this transmitting mirror is a prism, described red beam joins in the light beam of projection light source by this catoptron, reaches required colour balance, and described light beam is pressed projecting direction output.The brightness of this red beam is that benchmark is provided with strong color of light brightness in the projection light source.In the present embodiment, catoptron can also be the catoptron of other types, for example silvered mirror or aluminum reflector, and described coloured secondary light source can be laser generator or led light source.Remove this, described coloured secondary light source can also other non-standard white electric light sources, for example have the electric light source of color filter.
Embodiment three:
Present embodiment is the improvement on the basis of embodiment one.Referring to Fig. 3, in the present embodiment, described colored light beam is a red beam 5, and the red beam that coloured secondary light source 3 produces joins in the light beam of projection light source by light transmitting fiber 7, reaches required colour balance, and described light beam is pressed projecting direction output.The brightness of this red beam is that benchmark is provided with strong color of light brightness in the projection light source.In the present embodiment, described coloured secondary light source can be laser generator or led light source.Remove this, described coloured secondary light source can also other non-standard white electric light sources, for example have the electric light source of color filter.
Embodiment four:
Present embodiment is the improvement on the basis of embodiment three.Referring to Fig. 4, in the present embodiment, described colored light beam is a red beam 5, the red beam that coloured secondary light source 3 produces joins on the parabolic reflector of projection light source by light transmitting fiber 7, reflect then, reach required colour balance, described light beam is pressed projecting direction output.The brightness of this red beam is that benchmark is provided with strong color of light brightness in the projection light source.
Embodiment five:
Present embodiment is the improvement on the basis of embodiment one.Referring to Fig. 5, in the present embodiment, described coloured secondary light source 8 is a led light source (also can be described as miniature), which is provided with a plurality of light emitting diodes, this light emitting diode can be a red light 9, also can be respectively red light, green light, sodium yellow, blue light.The brightness of the light beam that this miniature produces is that benchmark is provided with strong color of light brightness in the projection light source, light beam output terminal at ultrahigh pressure mercury lamp is provided with foveal reflex mirror 4, red beam projects on the double color reflection mirror from the side, form folded light beam then, thus, described red beam just joins in the light beam of projection light source, reaches required colour balance, described light beam is pressed projecting direction output, promptly by identical projecting direction output.
Embodiment six:
Referring to Fig. 6, use a ultrahigh pressure mercury lamp 1 as projection light source in this enforcement, this light source center portion is provided with fluorescent tube 2, light beam output terminal at ultrahigh pressure mercury lamp is provided with a double color reflection mirror 10, this double color reflection mirror opposite side (rear side) is provided with a coloured secondary light source 11, present embodiment adopts the red LED light source as coloured secondary light source, the red beam that this light source produced forms directional light by convex lens 12 arrangement backs and projects the double color reflection mirror from rear side, and go out from the transmission of double color reflection mirror, the light beam of described projection light source from front projection to the double color reflection mirror, and go out the formation folded light beam from the double color reflection mirror reflection, thus, described red beam just joins in the light beam of projection light source, reaches required colour balance, described light beam is pressed projecting direction output, promptly by identical projecting direction output.What the double color reflection mirror in the present embodiment adopted is a kind of multilayered medium membrane technology (Dichroic mirror) of maturation, it is a kind of optical thin film, its function is that the light of irradiation on it is reflected away (reflectivity can reach more than 95%), and its light behind all smoothly transmission by (transmissivity can reach more than 95%).
Claims (6)
1, a kind of method that improves projection light source life-span, look utilization ratio, luminance brightness is characterized in that:
Use a kind of in high-pressure sodium lamp, ultrahigh pressure mercury lamp, metal halide lamp, iodine-tungsten lamp, the xenon lamp as projection light source, with strong color of light brightness in the described projection light source is that benchmark is provided with one or more coloured secondary light sources, the colored light beam that coloured secondary light source is produced joins in the light beam of projection light source, reach required colour balance, described light beam is pressed projecting direction output.
2, the method for raising projection light source life-span according to claim 1, look utilization ratio, luminance brightness, it is characterized in that: described colored light beam is a red beam, light beam output terminal central part in described projection light source is provided with a catoptron, described red beam joins in the light beam of projection light source by this catoptron, reach required colour balance, described light beam is pressed projecting direction output.
3, the method for raising projection light source life-span according to claim 1, look utilization ratio, luminance brightness, it is characterized in that: described colored light beam is a red beam, light beam output terminal in described projection light source is provided with a double color reflection mirror, described red beam joins in the light beam of projection light source by this catoptron, reach required colour balance, described light beam is pressed projecting direction output.
4, the method for raising projection light source life-span according to claim 1, look utilization ratio, luminance brightness, it is characterized in that: described colored light beam is a red beam, described red beam joins in the light beam of projection light source by light transmitting fiber, reach required colour balance, described light beam is pressed projecting direction output.
5, according to the method for claim 1,2,3,4 described raising projection light source life-spans, look utilization ratio, luminance brightness, it is characterized in that: described coloured secondary light source can be laser generator or led light source.
6, according to the method for claim 1,2,3,4 described raising projection light source life-spans, look utilization ratio, luminance brightness, it is characterized in that: described coloured secondary light source is the electric light source that has color filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410058025 CN1734347A (en) | 2004-08-09 | 2004-08-09 | Method for improving life, color utilization efficiency, light brightness of projection light source |
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| CN 200410058025 CN1734347A (en) | 2004-08-09 | 2004-08-09 | Method for improving life, color utilization efficiency, light brightness of projection light source |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009070918A1 (en) * | 2007-11-30 | 2009-06-11 | Phoebus Vision Opto-Electronics Technology Ltd. | Light source for projection system and projection display apparatus |
| CN102884478A (en) * | 2010-05-21 | 2013-01-16 | Nec显示器解决方案株式会社 | Lighting optical system and projector using same |
| CN107515511A (en) * | 2014-06-23 | 2017-12-26 | 深圳市绎立锐光科技开发有限公司 | Light-source system and projector equipment |
| CN110045571A (en) * | 2018-01-16 | 2019-07-23 | 中强光电股份有限公司 | Light-source generation device, projection arrangement and its light source generation method |
-
2004
- 2004-08-09 CN CN 200410058025 patent/CN1734347A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009070918A1 (en) * | 2007-11-30 | 2009-06-11 | Phoebus Vision Opto-Electronics Technology Ltd. | Light source for projection system and projection display apparatus |
| CN102884478A (en) * | 2010-05-21 | 2013-01-16 | Nec显示器解决方案株式会社 | Lighting optical system and projector using same |
| US9039187B2 (en) | 2010-05-21 | 2015-05-26 | Nec Display Solutions, Ltd. | Illumination optical system and a projector using the same |
| CN107515511A (en) * | 2014-06-23 | 2017-12-26 | 深圳市绎立锐光科技开发有限公司 | Light-source system and projector equipment |
| CN110045571A (en) * | 2018-01-16 | 2019-07-23 | 中强光电股份有限公司 | Light-source generation device, projection arrangement and its light source generation method |
| CN110045571B (en) * | 2018-01-16 | 2022-05-24 | 中强光电股份有限公司 | Light source generating device, projection device and light source generating method thereof |
| US11509873B2 (en) | 2018-01-16 | 2022-11-22 | Coretronic Corporation | Light source generating device, projection apparatus and light source generation method thereof |
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