CN102955340A - Light source device of projector - Google Patents
Light source device of projector Download PDFInfo
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- CN102955340A CN102955340A CN2011102506067A CN201110250606A CN102955340A CN 102955340 A CN102955340 A CN 102955340A CN 2011102506067 A CN2011102506067 A CN 2011102506067A CN 201110250606 A CN201110250606 A CN 201110250606A CN 102955340 A CN102955340 A CN 102955340A
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- Prior art keywords
- light
- light source
- projector
- led
- color
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Abstract
The invention provides a light source device of a projector. The light source device comprises a light source group, a light combination device, a light guide component, a prism group, a digital micro-mirror display device and a projection lens group, wherein the light source group comprises a first light emitting diode (LED) light source, a second LED light source, a laser light source and a color wheel; the first and second LED light sources generate first and second color light; the laser light source irradiates the color wheel to generate a third color light; and after the light guide component mixes the three color lights via the light combination device, the mixed color light is projected on the digital micro-mirror display device by the prism group and then is refracted on the projection lens group. The light source device has the beneficial effect that the brightness of the projector can be promoted via the laser light source of the light source group.
Description
Technical field
The present invention relates to a kind of projector light source device, espespecially a kind of portable has associativity the projection of light source machine light supply apparatus.
Background technology
The light source that general projector uses, such as tungsten halogen lamp, metal halide lamp, ultrahigh pressure mercury lamp or xenon lamp etc., its common characteristic that has is overheated, high power consumption, low bulb life, volume is excessive, weight is gently not portable again.In recent years, electronic product development is with the trend development of " light, thin, short, little, cost is low ", the optical projector product is no exception, adopts, small volume less with relatively low power consumption, heating and long light emitting diode (LED) of life-span to be used as light source at the Lights section.But led light source is relatively relatively poor on the directive property of light and excitation, and the illumination mode of loose look also causes light utilization efficiency to reduce everywhere, and then causes the projection brightness of projector to promote.Although, for improving the low shortcoming of led light source illumination mode and utilization factor, and the laser LED light source that develops, still because of the restriction of technology, only have ruddiness comparatively maturation have market scale.Therefore, other color must utilize the frequency multiplication chip to change, its structure relative complex and high cost.So use at present the portable type projector of led light source, on projection brightness and color saturation, still have its shortcoming and difficulty to be overcome.
Summary of the invention
In view of this, be necessary to provide a kind of projector light source device that can increase the brightness of portable projector.
The invention provides a kind of projector light source device, it comprises a light source group, a Multiplexing apparatus, a leaded light component, a water chestnut mirror group, a digital micro-mirror display device and a projection lens group.Described light source group comprises first LED source, second LED source, a LASER Light Source and a colour wheel, described first and second LED source produces first and second color of light, described LASER Light Source is shone described colour wheel and is produced the 3rd color of light, after in addition mixed light is processed with described three color of light by described Multiplexing apparatus, described leaded light component, be projected on the described digital micromirror display device via described water chestnut mirror group, be folded to again to described projection lens group.
Compare prior art, projector light source device of the present invention, the high brightness that has by described LASER Light Source, throw the fluorescent powder that arranges on the described colour wheel, can use inspiring needed color of light, cooperate again described LED source to compile the color of light of sending with lens, three color of light that described light supply apparatus is produced, have good color saturation and luminous intensity, thereby can effectively promote the luminosity of described projector.
Description of drawings
Fig. 1 is the embodiment light path schematic diagram of projector light source device of the present invention.
Fig. 2 is the colour wheel panel sensitive surface schematic diagram of the projector light source device of Fig. 1.
The main element symbol description
| |
10 |
| The |
11 |
| |
112 |
| The first |
1121 |
| The second |
1123 |
| First liang to |
1122 |
| Second liang to |
1124 |
| |
1125、1126 |
| |
1128、1142、1164、132 |
| LASER Light |
114 |
| |
1140 |
| Catoptron | 1144、134 |
| |
116 |
| The |
1162 |
| |
1162a |
| |
12 |
| Leaded |
13 |
| Water |
14 |
| The digital |
15 |
| The |
16 |
| Red light | R |
| Green light | G |
| Blue light | B |
| Laser beam | b |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing the present invention being done one specifically introduces.
See also shown in Figure 1, embodiment light path schematic diagram for projector light source device of the present invention, described light supply apparatus 10, it comprises a light source group 11, a Multiplexing apparatus 12, a leaded light component 13, a water chestnut mirror group 14, a digital micro-mirror display device 15 and a projection lens group 16.Described light source group 11 mainly is to produce the primaries with high brightness, then by described Multiplexing apparatus 12 described primaries is assembled and closes the light light beam at same optical axis.Then be projected to described leaded light component 13 and carry out the described running of closing the even light of light light beam and eliminating hot spot with the refraction of light.Described leaded light component 13 is a photoconductive tube (Light Tunnel).Through the described light light beam that closes of described leaded light component 13, scioptics 132 and catoptron 134 guidings are projected to described water chestnut mirror group 14 again.Described water chestnut mirror group 14 is the reverse total internal reflection water chestnut mirrors (RTIR, Reverse Total Internal Reflection) that are combined to form by two water chestnut mirrors.Described water chestnut mirror group 14 is projected to the described light light beam that closes through dodging on the described digital micromirror display device 15 (DMD, Digital Micro-mirror Device) with total internal reflection first.Described digital micromirror display device 15 is in accepting describedly to consist of image strip after closing the light light beam, described image strip oppositely refracts to described projection lens group 16 by described water chestnut mirror group 14 again, thereby the image that described digital micromirror display device 15 consists of can be gone out by projection.
Described light source group 11 comprises a LED source 112, a LASER Light Source 114 and a colour wheel 116.Wherein said LED source 112 comprises first LED source 1121 and second LED source 1123.Described the first LED source 1121 produces the first color of light, and described the second LED source 1123 produces the second color of light.The described colour wheel 116 of described LASER Light Source 114 irradiations produces the 3rd color of light.Present embodiment, described the first LED source 1121 is red light emitting diodes, and described the first color of light is red light R, and described the second LED source 1123 is blue LED, and described the second color of light is blue light B.The light path of described the first LED source 1121, to pass be positioned at described the first LED source 1121 front ends one first liang to dichronic mirror 1122 (DM, Dichroic Mirror) after, is positioned at one second liang of described Multiplexing apparatus 12 front ends to the described Multiplexing apparatus 12 of dichronic mirror 1124 refraction guiding.Described first liang has a lens combination 1126 between dichronic mirror 1122 and described the first LED source 1121, and described first and second two to having lens 1128 setting between the dichronic mirror 1122,1124, described lens combination 1126 and described lens 1128 are in order to assemble the red light R of described the first LED source 1121.In addition, described the second LED source 1123, be positioned at described second liang of another side to dichronic mirror 1124 of described Multiplexing apparatus 12 front ends, the blue light B light path that described the second LED source 1123 is produced can directly pass described second liang and arrive described Multiplexing apparatus 12 to dichronic mirror 1124.Between described the second light emitting diode 1123 and the described Multiplexing apparatus 12, also be provided with lens combination 1125, in order to assemble the blue light B of described the second LED source 1123.
Described LASER Light Source 114 comprises at least one laser generator 1140, in order to produce a laser beam b.In the present embodiment, described LASER Light Source 114 is take several laser generators 1140 as one group, and 1140 groups of described laser generators form by six, produce the described laser beam b with higher brightness.Described laser beam b is blue light B.Described laser generator 1140 front ends have lens 1142, and described lens 1142 make described laser beam b concentrate the described colour wheel 116 of directive.1140 groups of the same sides that are positioned at described the first LED source 1121 of laser generator described in the embodiment have catoptron 1144 and arrange to guide described laser beam b directive described colour wheel 116.In the path of the described colour wheel 116 of described laser beam b directive, directly pass be positioned at described the first LED source 1121 front ends described first liang to dichronic mirror 1122, described laser beam b directly is projected on the described colour wheel 116.Described colour wheel 116 has an illumination block 1162 (as shown in Figure 2) for continuing the panel of rotation on the light receiving surface of described colour wheel 116 panels, the described laser beam b that described illumination block 1162 is produced by described LASER Light Source 114 shines.In the present embodiment, described illumination block 1162 coatings of described colour wheel 116 panel surfaces have fluorescence coating 1162a.Described fluorescence coating 1162a can be excited by the blue laser beams b irradiation of described LASER Light Source 114 and produces green light G, the light path of described green light G, lens 1164 directives by described colour wheel 116 panel light receiving surfaces one side be positioned at described the first LED source 1121 front ends described first liang to dichronic mirror 1122.Described first liang to dichronic mirror 1122 can the described green light G directive of refraction another be positioned at described Multiplexing apparatus 12 front ends described second liang to dichronic mirror 1124, thereby described second liang can be directed to described Multiplexing apparatus 12 with described green light G refraction to dichronic mirror 1124.
Described Multiplexing apparatus 12 receives red light R, the blue light B of the described LED source 112 of described light source group 11, and the laser beam b of described LASER Light Source 114 excites described colour wheel 116 light receiving surfaces to produce the green light G of high brightness, the described same optical axis that behind mixed light, produces close the light light beam, can use and improve described brightness of closing the light light beam.In other words, the primaries that described light source group 11 produces (red, blue, green color of light), because include the high brightness characteristic of described LASER Light Source 114, therefore the luminance brightness in the time of can increasing the projection of described projector, also can increase simultaneously the color saturation of projection ray, promote the effectiveness of described portable projector.
Projector light source device of the present invention, described light source group 11 comprises LED source 112 and 114 two kinds of light sources of LASER Light Source, the high-strength characteristic that wherein said LASER Light Source 114 has, the fluorescence coating that has in order to shine described colour wheel 116 light receiving surfaces, make it to excite the described green light G of generation, cooperate again the red light R of described the first LED source 1121 and the blue light B of described the second LED source 1123, the light beam brightness is high, color is more bright-coloured for closing of producing, but the lumen brightness of the described projector of Effective Raise.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (11)
1. projector light source device, it comprises a light source group, a Multiplexing apparatus, a leaded light component, a water chestnut mirror group, a digital micro-mirror display device and a projection lens group, described light source group comprises first LED source, second LED source, a LASER Light Source and a colour wheel, described first, two LED source produce first, second colors light, described LASER Light Source is shone described colour wheel and is produced the 3rd color of light, by described Multiplexing apparatus, described leaded light component is after in addition mixed light is processed with described three color of light, be projected on the described digital micromirror display device via described water chestnut mirror group, be folded to again to described projection lens group.
2. projector light source device as claimed in claim 1, it is characterized in that: described the first LED source is red light emitting diodes, described the first color of light is red light, and described the second LED source is blue LED, and described the second color of light is blue light.
3. projector light source device as claimed in claim 2, it is characterized in that: the light path of described the first LED source, be to pass be positioned at described the first LED source front end one first liang behind dichronic mirror, be positioned at one second liang of described Multiplexing apparatus front end to the described Multiplexing apparatus of dichronic mirror refraction guiding.
4. projector light source device as claimed in claim 3, it is characterized in that: described first liang has a lens combination between dichronic mirror and described the first LED source, and described first and second two to having a lens setting between the dichronic mirror.
5. projector light source device as claimed in claim 1, it is characterized in that: described the second LED source is positioned at described second liang of another side to dichronic mirror of described Multiplexing apparatus front end, described the second LED source light path, directly pass described second liang and arrive described Multiplexing apparatus to dichronic mirror, have the lens combination setting between described the second light emitting diode and the described Multiplexing apparatus.
6. projector light source device as claimed in claim 1, it is characterized in that: described LASER Light Source comprises at least one laser generator, and in order to produce a laser beam, described laser beam is blue light, and described laser generator front end has the lens setting.
7. projector light source device as claimed in claim 6, it is characterized in that: described laser generator is positioned at the same side of described the first LED source, described laser beam is by the setting of catoptron, guiding pass described first liang to the described colour wheel of dichronic mirror directive.
8. projector light source device as claimed in claim 1 is characterized in that: described colour wheel has an illumination block for continuing the panel of rotation on the light receiving surface of described colour wheel panel, the laser beam irradiation that described illumination block is produced by described LASER Light Source.
9. projector light source device as claimed in claim 8, it is characterized in that: the illumination block applying implenent of described colour wheel panel has fluorescence coating, and described fluorescence coating is excited by described LASER Light Source irradiation and produces the 3rd color, and described the 3rd color of light is green light.
10. projector light source device as claimed in claim 9 is characterized in that: the light path of described green light, behind the lens that have by described colour wheel panel light receiving surface one side, via described first and second two to the refraction guiding of dichronic mirror to described Multiplexing apparatus.
11. projector light source device as claimed in claim 1 is characterized in that: described water chestnut mirror group is the reverse total internal reflection water chestnut mirror that is combined to form by two water chestnut mirrors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102506067A CN102955340A (en) | 2011-08-29 | 2011-08-29 | Light source device of projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102506067A CN102955340A (en) | 2011-08-29 | 2011-08-29 | Light source device of projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102955340A true CN102955340A (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102506067A Pending CN102955340A (en) | 2011-08-29 | 2011-08-29 | Light source device of projector |
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| CN (1) | CN102955340A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399453A (en) * | 2013-08-23 | 2013-11-20 | 中国华录集团有限公司 | Light source device of projector, capable of enhancing brightness |
| CN103399452A (en) * | 2013-08-23 | 2013-11-20 | 中国华录集团有限公司 | Light source device of projector |
| CN104808424A (en) * | 2014-01-23 | 2015-07-29 | 深圳市绎立锐光科技开发有限公司 | Light source applied to projection device, and projection device comprising same |
| CN106292145A (en) * | 2016-09-07 | 2017-01-04 | 广景视睿科技（深圳）有限公司 | A kind of laser array device and scialyscope illumination path thereof |
| CN109581797A (en) * | 2019-01-17 | 2019-04-05 | 南阳南方智能光电有限公司 | A kind of highlighted LED micro projection lighting system of four-way |
| CN113568265A (en) * | 2021-08-11 | 2021-10-29 | 四川长虹电器股份有限公司 | Projection lighting system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1779556A (en) * | 2004-11-24 | 2006-05-31 | 普立尔科技股份有限公司 | Projector with light emitting diode as light source |
| CN101770074A (en) * | 2008-12-31 | 2010-07-07 | 上海瑞启富达光电技术有限公司 | Laser system, working method and projection system |
| US20100328554A1 (en) * | 2009-06-30 | 2010-12-30 | Casio Computer Co., Ltd. | Light source device, video projector and video projection method |
| CN102081292A (en) * | 2009-10-28 | 2011-06-01 | 卡西欧计算机株式会社 | Light source unit and projector |
-
2011
- 2011-08-29 CN CN2011102506067A patent/CN102955340A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1779556A (en) * | 2004-11-24 | 2006-05-31 | 普立尔科技股份有限公司 | Projector with light emitting diode as light source |
| CN101770074A (en) * | 2008-12-31 | 2010-07-07 | 上海瑞启富达光电技术有限公司 | Laser system, working method and projection system |
| US20100328554A1 (en) * | 2009-06-30 | 2010-12-30 | Casio Computer Co., Ltd. | Light source device, video projector and video projection method |
| CN102081292A (en) * | 2009-10-28 | 2011-06-01 | 卡西欧计算机株式会社 | Light source unit and projector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399453A (en) * | 2013-08-23 | 2013-11-20 | 中国华录集团有限公司 | Light source device of projector, capable of enhancing brightness |
| CN103399452A (en) * | 2013-08-23 | 2013-11-20 | 中国华录集团有限公司 | Light source device of projector |
| CN104808424A (en) * | 2014-01-23 | 2015-07-29 | 深圳市绎立锐光科技开发有限公司 | Light source applied to projection device, and projection device comprising same |
| CN106292145A (en) * | 2016-09-07 | 2017-01-04 | 广景视睿科技（深圳）有限公司 | A kind of laser array device and scialyscope illumination path thereof |
| CN109581797A (en) * | 2019-01-17 | 2019-04-05 | 南阳南方智能光电有限公司 | A kind of highlighted LED micro projection lighting system of four-way |
| CN113568265A (en) * | 2021-08-11 | 2021-10-29 | 四川长虹电器股份有限公司 | Projection lighting system |
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Application publication date: 20130306 |