CN205193416U - A laser lamp -house device for projecting apparatus - Google Patents
A laser lamp -house device for projecting apparatus Download PDFInfo
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- CN205193416U CN205193416U CN201520951682.4U CN201520951682U CN205193416U CN 205193416 U CN205193416 U CN 205193416U CN 201520951682 U CN201520951682 U CN 201520951682U CN 205193416 U CN205193416 U CN 205193416U
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Abstract
The utility model discloses a laser lamp -house device for projecting apparatus, including ruddiness semiconductor laser, green glow semiconductor laser, blue light semiconductor laser, the 1st, 2, 3 lens, the 1st, 2, 3 space optical modulation elements, close ripples prism, homogenization piece, microlens array group and projection lens, wherein, 1st, 2, the 3 lens incident light of receiving ruddiness semiconductor laser, green glow semiconductor laser, blue light semiconductor laser respectively becomes the parallel transmitted light of three beams, and the parallel transmitted light of three beams assembles through the 1st, 2, 3 space optical modulation elements respectively and closes a branch of synthetic light of ripples prism output, synthetic light becomes a branch of output light through homogenization piece, microlens array group and projection lens in proper order. The utility model discloses a three primary colors semiconductor laser is as the light source, and adopt the space optical modulation element, close the ripples prism, component such as homogenization piece handles laser, has solved that projecting apparatus lamp source is short -lived, image colour cast, laser speckle scheduling problem.
Description
Technical field
The utility model relates to a kind of LASER Light Source technology, specifically a kind of laser light-source device for projector.
Background technology
At present, projector is extensively popularized, as violent in general projectors equipment development news such as home theater, office's projections, but sharpness, luminance brightness, color be the difficult demand meeting people still, particularly for the projector apparatus that sharpness, luminance brightness, color have the movie theatre of requirements at the higher level or outdoor occasion to use, this is the reason of one of them crux, is that projector generally uses bulb source.The color rendering region of bulb source is restricted, and the life-span of bulb source is shorter in addition, and this all have impact on the quality of projection imaging; Meanwhile, bulb source has the shortcoming such as larger light source area, lower light utilization ratio.
In order to address these problems, more and more people proposes the light source of LASER Light Source as projector.LASER Light Source has the features such as monochromaticity, high brightness, life-span length.Meanwhile, laser optical power becomes ratio with drive current, thus uses laser can realize larger color rendering region, utilizes the projector of LASER Light Source can show bright-coloured image.But due to the coherence of laser, laser-projector has the problem of speckle noise (specklenoise).
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of laser light-source device for projector, solves the problems such as existing projector lamp source service life is short, image color cast, LASER Light Source speckle are serious.
The technical solution of the utility model is as follows:
For a laser light-source device for projector, wherein, comprise the conjunction ripple prism of one or four prismatics, be also included in red light semiconductor laser, the 1st lens, the 1st spatial optical modulation element that first side of described conjunction ripple prism sets gradually; Green light semiconductor, the 2nd lens, the 2nd spatial optical modulation element that second side of described conjunction ripple prism sets gradually; Blue semiconductor laser, the 3rd lens, the 3rd spatial optical modulation element that 3rd side of described conjunction ripple prism sets gradually; And the homogenizing sheet, microlens array group and the projection lens that set gradually on the 4th side of described conjunction ripple prism; Wherein, described 1st, 2,3 lens receive respectively red light semiconductor laser, green light semiconductor, blue semiconductor laser incident light become the parallel transmitted light of three beams, the parallel transmitted light of three beams respectively through the 1st, 2,3 spatial optical modulation elements converge to and close ripple prism and export a branch of synthesis light, described synthesis light becomes a branch of output light through homogenizing sheet, microlens array group and projection lens successively.
The described laser light-source device for projector, wherein, the laser emission section of described green light semiconductor, red light semiconductor laser, blue semiconductor laser is close to respectively and is provided with radiating block.
The described laser light-source device for projector, wherein, described 1st, 2,3 lens are collimation lens.
The described laser light-source device for projector, wherein, described spatial optical modulation element is LCD LCD space light modulator.
The described laser light-source device for projector, wherein, described microlens array is the array that micron-sized lens unit forms by clear aperature and relief depth; The lens unit of described microlens array is regular hexagon, and is simultaneously for convex, another side are flat plano-convex lens.
The described laser light-source device for projector, wherein, described microlens array group is conjugation microlens array group, and the between two lens array relative by convex surface combines.
The described laser light-source device for projector, wherein, the optical maser wavelength of described red light semiconductor laser is 534nm.
The described laser light-source device for projector, wherein, described conjunction ripple prism comprises four prisms; Wherein three prisms receive the light modulated that the 1st, 2,3 spatial optical modulation elements export respectively, and export a branch of synthesis light by another prism.
The described laser light-source device for projector, wherein, described projection lens is made up of two pieces of convex lens, and wherein one piece of convex lens are two sides is convex biconvex lens, and another block is one side for convex, another side are flat plano-convex lens.
Laser light-source device for projector provided by the utility model, laser light-source device of the present utility model is adopted to have the life-span relative to conventional projector shadow long, light utilization efficiency is high, brightness is high, the feature that heat dispersion is stable, and increase in this laser light-source device and homogenizing sheet is set, the components and parts such as microlens array, significantly solve distribution of light sources undesirable, projection-display image colour cast, the problems such as speckle is serious, the image projection of projector is made to realize larger color rendering region, resolution improves, and present more bright-coloured, clear, the image of high brightness.
Accompanying drawing explanation
Fig. 1 is the schematic diagram for the laser light-source device of projector in the utility model.
Fig. 2 is the schematic surface for microlens array in the laser light-source device of projector in the utility model.
Fig. 3 is the array mode schematic diagram for microlens array group in the laser light-source device of projector in the utility model.
Embodiment
The utility model provides a kind of laser light-source device for projector, for making the purpose of this utility model, technical scheme and effect clearly, clearly, further describes the utility model referring to accompanying drawing examples.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, the laser light-source device for projector that the utility model provides, comprise the conjunction ripple prism 105 of one or four prismatics, be also included in red light semiconductor laser 101a, the 1st lens 103a, the 1st spatial optical modulation element 104a that first side of described conjunction ripple prism 105 sets gradually; Green light semiconductor 101b, the 2nd lens 103b, the 2nd spatial optical modulation element 104b that second side of described conjunction ripple prism 105 sets gradually; Blue semiconductor laser 101c, the 3rd lens 103c, the 3rd spatial optical modulation element 104c that 3rd side of described conjunction ripple prism 105 sets gradually; And the homogenizing sheet 106, microlens array group 107 and the projection lens 108 that set gradually on the 4th side of described conjunction ripple prism 105; Wherein, described 1st, 2,3 lens (103a, 103b, 103c) receive red light semiconductor laser 101a, green light semiconductor 101b respectively, the incident light of blue semiconductor laser 101c becomes the parallel transmitted light of three beams, the parallel transmitted light of three beams respectively through the 1st, 2,3 spatial optical modulation elements (104a, 104b, 104c) converge to and close ripple prism 105 and export a branch of synthesis light, described synthesis light becomes a branch of output light through homogenizing sheet 106, microlens array group 107 and projection lens 108 successively.
In the present embodiment, radiating block (102a, 102b, 102c) is respectively arranged with in the laser emission section of red light semiconductor laser 101a, green light semiconductor 101b, blue semiconductor laser 101c, described radiating block is closely set in Laser emission end, to strengthen LASER Light Source equilibrium heat radiation, improve stability and the life-span of LASER Light Source.
In the present embodiment, the optical maser wavelength that red light semiconductor laser 101a sends is 534nm, due to red light semiconductor laser 101a, green light semiconductor 101b, the LD face of blue semiconductor laser 101c is luminous, laser has certain lighting angle, namely general laser instrument can not produce whole directional light because self limits, therefore arrange the 1st respectively, 2, 3 lens (103a, 103b, 103c), 1st, 2, 3 lens (103a, 103b, 103c) be collimation lens, to from red light semiconductor laser 101a, green light semiconductor 101b, the laser that blue semiconductor laser 101c exports carries out collimating and correcting.Preferably, red, green, blue three beams of laser through collimation injects the 1st respectively, 2,3 spatial optical modulation elements (104a, 104b, 104c), LCD LCD space light modulator, 1st, 2,3 spatial optical modulation elements are LCD LCD space light modulator, space (Modulation and Amplitude Modulation and phase-modulation) shaping is carried out to red, green, blue three beams incident laser beam, makes three beams of laser form single color imaging respectively.
The light of red, green, blue three mono-color image formed through modulation enters respectively and closes ripple prism 105, closes ripple prism 105 and is mainly used in receiving red, green, blue three mono-color image that transmission formed through modulation, and is merged and become a full-colour image.In the present embodiment, closing ripple prism 105 is four prismatic structure, closes ripple prism 105 and comprises four prisms; Preferentially, described 4 prisms are isosceles right-angled edge ytterbium, and wherein three prisms receive the light modulated that the 1st, 2,3 spatial optical modulation elements export respectively; Another prism of the full-colour image light ECDC ripple prism of ECDC ripple prism 105 synthesis exports.
In the utility model embodiment, between conjunction ripple prism 105 and projection lens 108, arrange homogenizing sheet 106, microlens array group 107, the full-colour image of ECDC ripple prism 105 synthesis exports light and projects on projecting apparatus screen through homogenizing sheet 106, microlens array group 107 eventually through projection lens 108; Described projection lens 108 is made up of two pieces of convex lens, and wherein one piece of convex lens are two sides is convex biconvex lens, and another block is one side for convex, another side are flat plano-convex lens; Preferably, projection lens 108 can select the projecting lens with zoom function, to meet the user demand of the different occasion of projector.
In embodiment, homogenizing sheet 106 makes to obtain the light intensity distributions of full-colour image output light more evenly from closing ripple prism 105, and has eliminated the speckle phenomena of image.Further, as shown in Figure 2, microlens array 107 is the array that micron-sized lens unit forms by many clear aperatures and relief depth, that to be the one side of positive hexagonal be lens unit is convex, another side is flat plano-convex lens, and as shown in Figure 3, described microlens array group is conjugation microlens array group, and its array mode is combined by the lens array between two that convex surface is relative.The image light that microlens array 107 receives homogenizing sheet 106 output is spatially divided into many small parts, and every part is all focused on focal plane by corresponding lenslet, and a series of lenticule just can obtain the plane be made up of a series of focus.The full-colour image of ECDC ripple prism 105 synthesis exports light and makes the clear picture of display through homogenizing sheet 106, microlens array group 107, become clear, the resolution of image is significantly improved, greatly reduce because LASER Light Source causes full-colour image output light to have the existing picture of speckle simultaneously, make the light intensity distributions of the image exported more even.
In sum, the laser light-source device for projector that utility model provides, have the advantages that the life-span is long, light utilization efficiency is high, brightness is high, heat dispersion is stable relative to conventional projector shadow, and increase in this laser light-source device and the components and parts such as homogenizing sheet, microlens array are set, significantly solve the problems such as distribution of light sources is undesirable, projection-display image colour cast, speckle are serious, make the image projection of projector realize larger color rendering region, resolution improves, and present image that is more bright-coloured, clear, high brightness.
Should be understood that; application of the present utility model is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert; such as, all these improve and convert the protection domain that all should belong to the utility model claims.
Claims (9)
1. for a laser light-source device for projector, it is characterized in that, comprise the conjunction ripple prism of one or four prismatics, be also included in red light semiconductor laser, the 1st lens, the 1st spatial optical modulation element that first side of described conjunction ripple prism sets gradually; Green light semiconductor, the 2nd lens, the 2nd spatial optical modulation element that second side of described conjunction ripple prism sets gradually; Blue semiconductor laser, the 3rd lens, the 3rd spatial optical modulation element that 3rd side of described conjunction ripple prism sets gradually; And the homogenizing sheet, microlens array group and the projection lens that set gradually on the 4th side of described conjunction ripple prism; Wherein, described 1st, 2,3 lens receive respectively red light semiconductor laser, green light semiconductor, blue semiconductor laser incident light become the parallel transmitted light of three beams, the parallel transmitted light of three beams respectively through the 1st, 2,3 spatial optical modulation elements converge to and close ripple prism and export a branch of synthesis light, described synthesis light becomes a branch of output light through homogenizing sheet, microlens array group and projection lens successively.
2. the laser light-source device for projector according to claim 1, is characterized in that, the laser emission section of described green light semiconductor, red light semiconductor laser, blue semiconductor laser is respectively arranged with radiating block.
3. the laser light-source device for projector according to claim 1, is characterized in that, described 1st, 2,3 lens are collimation lens.
4. the laser light-source device for projector according to claim 1, is characterized in that, described spatial optical modulation element is LCD LCD space light modulator.
5. the laser light-source device for projector according to claim 1, is characterized in that, described microlens array is the array that micron-sized lens unit forms by clear aperature and relief depth; The lens unit of described microlens array is regular hexagon, and is simultaneously for convex, another side are flat plano-convex lens.
6. the laser light-source device for projector according to claim 5, is characterized in that, described microlens array group is conjugation microlens array group, and the between two lens array relative by convex surface combines.
7. the laser light-source device for projector according to claim 1, is characterized in that, the optical maser wavelength of described red light semiconductor laser is 534nm.
8. the laser light-source device for projector according to claim 1, is characterized in that, described conjunction ripple prism comprises four prisms; Wherein three prisms receive the light modulated that the 1st, 2,3 spatial optical modulation elements export respectively, and export a branch of synthesis light by another prism.
9. the laser light-source device for projector according to claim 1, it is characterized in that, described projection lens is made up of two pieces of convex lens, and wherein one piece of convex lens are two sides is convex biconvex lens, and another block is one side for convex, another side are flat plano-convex lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951682.4U CN205193416U (en) | 2015-11-25 | 2015-11-25 | A laser lamp -house device for projecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520951682.4U CN205193416U (en) | 2015-11-25 | 2015-11-25 | A laser lamp -house device for projecting apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN205193416U true CN205193416U (en) | 2016-04-27 |
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| CN201520951682.4U Expired - Fee Related CN205193416U (en) | 2015-11-25 | 2015-11-25 | A laser lamp -house device for projecting apparatus |
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| CN (1) | CN205193416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889801A (en) * | 2017-12-06 | 2019-06-14 | 深圳光峰科技股份有限公司 | Projection device and method for displaying projection |
-
2015
- 2015-11-25 CN CN201520951682.4U patent/CN205193416U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889801A (en) * | 2017-12-06 | 2019-06-14 | 深圳光峰科技股份有限公司 | Projection device and method for displaying projection |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20211125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |