CN104749868B - Light source module and projection arrangement - Google Patents
Light source module and projection arrangement Download PDFInfo
- Publication number
- CN104749868B CN104749868B CN201510152041.7A CN201510152041A CN104749868B CN 104749868 B CN104749868 B CN 104749868B CN 201510152041 A CN201510152041 A CN 201510152041A CN 104749868 B CN104749868 B CN 104749868B
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- China
- Prior art keywords
- light source
- lens
- equal
- spherical
- curvature
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Classifications
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- 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
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/041—Ball lenses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lenses (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a kind of light source module and projection arrangement, light source module comprises light source and lens. this light source is for generation of light beam. these lens are arranged at a side of this light source, these lens are used for converging this light beam, the plane of incidence of these lens is sphere or the first non-spherical surface, the exit facet of these lens comprises two the second non-spherical surfaces of the optical axis configuration of symmetrical these lens, the optical axis of these lens of optical axis deviation of this second non-spherical surface, this second non-spherical surface comprises Part I and Part II, this Part II is the part near the optical axis of these lens with respect to this Part I, the radius of curvature of this Part II is less than the radius of curvature of this Part I, the absolute value of the radius of curvature of this plane of incidence is greater than the absolute value of the radius of curvature of this second non-spherical surface.
Description
Technical field
The present invention relates to projection arrangement field, relate in particular to a kind of minimizing and be reflected back the light source die of the light of light sourceGroup and projection arrangement.
Background technology
In prior art, when the mercury lamp of projector designs, conventionally can place above infrared in a slice (UVIR)Plate glass or lens. Although most light can penetrate plate glass or lens, still have minority lightCan be reflected back toward mercury lamp, make lamp temperature abnormality or consumption of electrode abnormal, and then reduce the life-span of mercury lamp.
Summary of the invention
Light source module provided by the invention and projection arrangement, can reduce the light that is reflected back light source, Jin ErzengAdd the life-span of light source.
First aspect, the invention provides a kind of light source module, comprising: light source and lens. This light source is for producingThird contact of a total solar or lunar eclipse bundle. These lens are arranged at a side of this light source, and these lens are used for converging this light beam, the incident of these lensFace is sphere or the first non-spherical surface, the exit facet of these lens comprise symmetrical these lens optical axis configuration twoIndividual the second non-spherical surface, the optical axis of these lens of optical axis deviation of this second non-spherical surface, this second non-ballFace curved surface comprises Part I and Part II, and this Part II is saturating near this with respect to this Part IThe part of the optical axis of mirror, the radius of curvature of this Part II is less than the radius of curvature of this Part I, this incidentThe absolute value of the radius of curvature of face is greater than the absolute value of the radius of curvature of this second non-spherical surface.
Preferably, the radius of curvature of this plane of incidence is more than or equal to 100 millimeters and be less than or equal to 400 millimeters.
Preferably, the radius of curvature of this second non-spherical surface be more than or equal to-50 millimeters and be less than or equal to-10 milliRice.
Preferably, the conic constant of this second non-spherical surface is more than or equal to-15 and be less than or equal to-7.
Preferably, the distance of the optical axis of these lens of optical axis deviation of this second non-spherical surface is more than or equal to 2 millisRice and be less than or equal to 6 millimeters.
Preferably, high-order 4 subparameters of this second non-spherical surface are more than or equal to 1.00E-06 and are less than or equal to3.00E-06; High-order 6 subparameters of this second non-spherical surface are more than or equal to 1.00E-10 and are less than or equal to3.00E-10; Be more than or equal to-the 3.00E-13 of high-order 8 subparameters of this second non-spherical surface and being less than or equal to-1.00E-13。
Preferably, this Lights section periphery is provided with for reflecting this light beam this light beam is penetrated towards this lens directionThe light source cover going out.
Second aspect, the invention provides a kind of projection arrangement, comprises the light source module described in above-mentioned first aspect.
Compared with prior art, light source module provided by the invention and projection arrangement, in a side setting of light sourceThe plane of incidence of lens be sphere or aspheric surface, the exit facet of lens comprise symmetric lens optical axis configuration twoThe optical axis of the optical axis deviation lens of individual the second non-spherical surface and the second non-spherical surface, the second non-spherical surfaceComprise Part I and Part II, Part II with respect to Part I near the optical axis of lens, theThe radius of curvature of two parts is less than the radius of curvature of Part I, like this, changes the feelings in light reflection light echo sourceShape, the light being reflected shortens focus point and makes cannot gather near light source through the light of reflection from lens, entersAnd increase life-span of light source.
Brief description of the drawings
The schematic diagram of a kind of light source module that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the light beam schematic diagram of the light source module shown in Fig. 1.
Detailed description of the invention
For making that object of the present invention, structure, feature and function thereof are had to further understanding, hereby coordinate realExecuting example is described in detail as follows.
The schematic diagram of a kind of light source module that Fig. 1 provides for the embodiment of the present invention. As shown in Figure 1, light source dieGroup 10 comprises light source 11 and lens 12. Light source 11 is for generation of light beam, concrete, and light source 11 canFor mercury lamp. Preferably, light source 11 part peripheries are provided with for folded light beam and make light beam towards lens 12 directionsThe light source cover 13 penetrating. Lens 12 are arranged at a side of light source 11, and lens 12 are for converging 11 of light sourcesThe light beam going out, lens 12 are biconvex lens, the plane of incidence 121 compared with exit facet near light source 11. Concrete, thoroughlyThe plane of incidence 121 of mirror 12 (is set to aspheric surface song with the plane of incidence 121 in Fig. 1 for sphere or non-spherical surfaceFace is example). The exit facet of lens 12 comprises two non-spherical surfaces of the optical axis A1 configuration of symmetric lens 12122,123, the optical axis M of non-spherical surface 122,123 all departs from the optical axis A1 of lens 12. Aspheric surface songFace 122 comprises Part I 1221 and Part II 1222, and Part I 1221 is with respect to secondThe part of dividing the 1222 optical axis A1 away from lens 12, Part II 1222 is with respect to Part I 1221The part of the optical axis A1 of close lens 12, the radius of curvature of Part II 1222 is less than Part I 1221Radius of curvature. Non-spherical surface 123 comprises Part I 1231 and Part II 1232, Part I1231 is the part away from the optical axis A1 of lens 12 with respect to Part II 1232, and Part II 1232 isPart with respect to Part I 1231 near the optical axis A1 of lens 12, the curvature of Part II 1,232 halfFootpath is less than the radius of curvature of Part I 1231. The absolute value of the radius of curvature of the plane of incidence 121 is greater than aspheric surfaceThe absolute value of the radius of curvature of curved surface 122,123.
Preferably, the radius of curvature of the plane of incidence 121 (Radius) is more than or equal to 100 millimeters and be less than or equal to400 millimeters. Preferably, the radius of curvature (Radius) of non-spherical surface 122,123 is more than or equal to-50Millimeter and be less than or equal to-10 millimeters. The conic constant (Conic) of non-spherical surface 122,123 is greater thanEqual-15 and be less than or equal to-7. The optical axis M of non-spherical surface 122,123 departs from the optical axis A1 of lens 12Distance B be more than or equal to 2 millimeters and be less than or equal to 6 millimeters. The high-order of non-spherical surface 122,123 4 timesParameter is more than or equal to 1.00E-06 and is less than or equal to 3.00E-06. The high-order 6 of non-spherical surface 122,123Subparameter is more than or equal to 1.00E-10 and is less than or equal to 3.00E-10. The high-order of non-spherical surface 122,123Be more than or equal to-3.00E-13 of 8 subparameters and be less than or equal to-1.00E-13. Fig. 2 is the light source die shown in Fig. 1The light beam schematic diagram of group. Two light that only project with light source 11 in Fig. 2 describe, as shown in Figure 2,The light part that light source 11 projects can converge on focus B through lens 12, due to the knot of lens 12Structure, the focus point of the light being reflected by exit facet is a C, can find out, the light being reflected shortens focus pointAnd make focus point away from light source 11, and then the light being reflected cannot be gathered near light source 11, increaseThe life-span of light source 11.
A kind of projection arrangement, can comprise that light source module, electrooptical device, the color described in above-described embodiment dividesFrom optical system etc.
Light source module provided by the invention is sphere or non-ball in the plane of incidence of the lens of a side setting of light sourceFace, the exit facet of lens comprises two the second non-spherical surfaces and the second non-ball of the optical axis configuration of symmetric lensThe optical axis of the optical axis deviation lens of face curved surface, the second non-spherical surface comprises Part I and Part II,Part II is with respect to Part I near the optical axis of lens, and the radius of curvature of Part II is less than FirstThe radius of curvature of dividing, like this, the two sides of lens is all curved design, changes the situation in light reflection light echo source,The light being reflected shortens focus point and makes cannot gather near light source through the light of reflection from lens Jin ErzengAdd the life-span of light source; Can converge better light, improve light transmittance and less half angle is provided,And then improved the system effectiveness of projection arrangement, and longer operating path is provided, the convenient eyeglass that inserts does and turnsFolding, and then conveniently projection arrangement is improved.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only of the present invention for implementingExample. Must be pointed out that, the embodiment having disclosed does not limit the scope of the invention. On the contrary, notDepart from change and the retouching in the spirit and scope of the present invention, done, all belong to scope of patent protection of the present invention.
Claims (8)
1. a light source module, comprises light source and lens, and this light source is for generation of light beam, and these lens arrangeIn a side of this light source, these lens are used for converging this light beam, it is characterized in that,
The plane of incidence of these lens is sphere or the first non-spherical surface, and the exit facet of these lens comprises symmetry, and this is saturatingTwo the second non-spherical surfaces of the optical axis configuration of mirror, these lens of optical axis deviation of this second non-spherical surfaceOptical axis, this second non-spherical surface comprises Part I and Part II, this Part II is with respect to thisPart I is near the part of the optical axis of these lens, and the radius of curvature of this Part II is less than this Part IRadius of curvature, the absolute value of the radius of curvature of this plane of incidence is greater than the radius of curvature of this second non-spherical surfaceAbsolute value.
2. light source module as claimed in claim 1, is characterized in that, the radius of curvature of this plane of incidence is greater thanEqual 100 millimeters and be less than or equal to 400 millimeters.
3. light source module as claimed in claim 1, is characterized in that, the curvature of this second non-spherical surfaceRadius is more than or equal to-50 millimeters and be less than or equal to-10 millimeters.
4. light source module as claimed in claim 1, is characterized in that, the secondary of this second non-spherical surfaceCurve constant is more than or equal to-15 and be less than or equal to-7.
5. light source module as claimed in claim 1, is characterized in that, the optical axis of this second non-spherical surfaceThe distance that departs from the optical axis of these lens is more than or equal to 2 millimeters and be less than or equal to 6 millimeters.
6. light source module as claimed in claim 1, is characterized in that, the high-order of this second non-spherical surface4 subparameters are more than or equal to 1.00E-06 and are less than or equal to 3.00E-06; The high-order of this second non-spherical surface6 subparameters are more than or equal to 1.00E-10 and are less than or equal to 3.00E-10; The high-order of this second non-spherical surfaceBe more than or equal to-3.00E-13 of 8 subparameters and be less than or equal to-1.00E-13.
7. light source module as claimed in claim 1, is characterized in that, this Lights section periphery is provided with useReflect the light source cover that this light beam makes this light beam penetrate towards this lens direction.
8. a projection arrangement, is characterized in that, comprises the light described in any one in the claims 1-7Source module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152041.7A CN104749868B (en) | 2015-04-01 | 2015-04-01 | Light source module and projection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152041.7A CN104749868B (en) | 2015-04-01 | 2015-04-01 | Light source module and projection arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749868A CN104749868A (en) | 2015-07-01 |
| CN104749868B true CN104749868B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510152041.7A Active CN104749868B (en) | 2015-04-01 | 2015-04-01 | Light source module and projection arrangement |
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| CN (1) | CN104749868B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885282B (en) * | 2020-07-02 | 2023-06-13 | 苏州佳世达光电有限公司 | Projector with a light source |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4538598B2 (en) * | 2003-01-08 | 2010-09-08 | ジーイーオー セミコンダクター インコーポレイテッド | Off-axis projection system and method |
| JP2005070631A (en) * | 2003-08-27 | 2005-03-17 | Seiko Epson Corp | Screen and projector |
| JP2005221553A (en) * | 2004-02-03 | 2005-08-18 | Seiko Epson Corp | Spatial light modulation apparatus and projector |
| JP2007114263A (en) * | 2005-10-18 | 2007-05-10 | Seiko Epson Corp | Projector |
| JP2007171319A (en) * | 2005-12-20 | 2007-07-05 | Samsung Electronics Co Ltd | Illumination optical system, illumination unit and image projector using the optical system |
| JP5228878B2 (en) * | 2008-12-17 | 2013-07-03 | 株式会社リコー | Coupling lens, lighting device, and electronic device |
| CN101813879A (en) * | 2010-03-31 | 2010-08-25 | 苏州佳世达光电有限公司 | Projector light source system |
| CN102410493A (en) * | 2010-09-21 | 2012-04-11 | 富士迈半导体精密工业（上海）有限公司 | Lens and light source module |
| KR101419031B1 (en) * | 2012-11-12 | 2014-07-11 | 방주광학 주식회사 | Light emitting device and lighting device having the same |
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- 2015-04-01 CN CN201510152041.7A patent/CN104749868B/en active Active
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| CN104749868A (en) | 2015-07-01 |
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