CN205581505U - Illuminator , lamps and lanterns and projection display equipment - Google Patents
Illuminator , lamps and lanterns and projection display equipment Download PDFInfo
- Publication number
- CN205581505U CN205581505U CN201620323671.6U CN201620323671U CN205581505U CN 205581505 U CN205581505 U CN 205581505U CN 201620323671 U CN201620323671 U CN 201620323671U CN 205581505 U CN205581505 U CN 205581505U
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- light
- laser
- emitting device
- conversion layer
- wavelength conversion
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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
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
-
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
-
- 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
- G03B21/208—Homogenising, shaping of the illumination light
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Semiconductor Lasers (AREA)
Abstract
A illuminator and lamps and lanterns and projection display equipment is proposed, including wavelength converters, this wavelength converters includes foraminiferous base plate and the wavelength conversion layer who attaches to downthehole wall, still include laser source and optical processing component, the laser entry that the laser source sent handles the back in the optical processing component and through it, and the angular distribution of laser is first angle scope for laser can all incide in the wavelength conversion layer of downthehole wall, and excites wavelength conversion layer to make its transmission receive laser. The optical processing component makes whole incide in the wavelength conversion layer of downthehole wall of laser and does not directly jet out from the hole, has guaranteed luminous efficiency and homogeneity. Simultaneously, the size in hole has limited the pore size of emergent light, and little hole can make the emergent light facula diminish, does not very influence luminous flux simultaneously, consequently can obtain bigger luminance.
Description
Technical field:
This utility model relates to lighting source field, particularly relates to a kind of light-emitting device and uses light fixture and the projection display equipment of this light-emitting device.
Background technology:
Along with the development of semiconductor technology, LED light source is replacing traditional electric filament lamp and electricity-saving lamp becomes a kind of novel lighting source, and it has efficiently, energy-conservation, the advantage such as environmental protection and life-span length.But, in the application that some are special, the field such as such as light of stage illumination, headlight for vehicles, Projection Display, it is desirable that the light source of a kind of super brightness, now LED is just difficult to meet require that.With the semiconductor laser (hereinafter referred to as LD) that LED belongs to semiconductor light source together, it may have the advantage of LED, simultaneously because its etendue amount (Etendue) is little, it is particularly suitable for the special source for making super brightness.When utilizing LD to make high brightness special source, the laser of LD outgoing being generally converged to a hot spot the least and incides on fluorescent material, owing to focused light spot is little, energy density is high, and fluorescent powder local region will produce that substantial amounts of thermally-induced fluorescent material is saturated even to be damaged.When the blanket solution of former is to be coated on rotating disk by fluorescent material, the quick rotation of rotating disk is utilized to dispel the heat for fluorescent material.But on the one hand the use of rotating disk reduces system reliability, on the other hand also limit the miniaturization of system.
Summary of the invention:
In order to solve the problems referred to above, the utility model proposes a kind of light-emitting device, including Wavelength converter, this Wavelength converter includes substrate with holes and is attached to the wavelength conversion layer of hole inwall；Also include lasing light emitter and optical processing element, the laser light incident that lasing light emitter sends is in optical processing element and after it processes, the angular distribution of laser is the first angular range so that laser can all be incident in the wavelength conversion layer of hole inwall, and excitation wavelength conversion layer makes it launch Stimulated Light.
This utility model also proposes a kind of light fixture, including above-mentioned light-emitting device as light source.
This utility model also proposes a kind of projection display equipment, including above-mentioned light-emitting device as light source.
Optical processing element makes laser all be incident in the wavelength conversion layer of hole inwall and directly not penetrate from hole, it is ensured that light extraction efficiency and uniformity.Meanwhile, the pore size that size limit emergent light in hole, little hole can make emergent light hot spot diminish, and does not very affect luminous flux simultaneously, therefore can obtain bigger brightness.
Accompanying drawing illustrates:
Figure 1A is the structural representation of the first embodiment of light-emitting device of the present utility model；
Figure 1B and Fig. 1 C is two kinds of possible embodiments of optical processing element in Figure 1A embodiment；
Fig. 1 D and Fig. 1 E is to swash photodistributed schematic diagram in Figure 1A embodiment；
Fig. 2 A is the structural representation of another embodiment of light-emitting device of the present utility model；
Fig. 2 B is to swash photodistributed schematic diagram in Fig. 2 A embodiment；
Fig. 3 is the structural representation of another embodiment of light-emitting device of the present utility model.
Detailed description of the invention:
The utility model proposes a kind of light-emitting device, the structural representation of its first embodiment is as shown in Figure 1A.This light-emitting device includes Wavelength converter, and this Wavelength converter includes substrate 101, and this substrate 101 includes hole 102；Wavelength converter also includes the wavelength conversion layer 103 being attached to the inwall in hole 102.Light-emitting device also includes lasing light emitter 105 and optical processing element 104, the laser (by as a example by light 141 and 142) that lasing light emitter sends is incident in optical processing element 104 and after it processes, the angular distribution of laser is the first angular range, make laser can all be incident in the wavelength conversion layer 103 of hole inwall, and excitation wavelength conversion layer 103 makes it launch Stimulated Light.
In the present embodiment, shown in solid in the first angular range such as Fig. 1 D.In Fig. 1 D, abscissa represents the angle of emergence of laser, and vertical coordinate represents relative light intensity.In figure, the light distribution of dotted line represents the laser distribution being incident in before optical processing element 104, and the light distribution of solid line represents and is distributed from the laser of optical processing element 104 outgoing.Visible, before being incident in optical processing element 104, laser distribution is the distribution launched centered by 0 degree (i.e. optical axis).If now not having optical processing element, core laser can not be incident in the wavelength conversion layer 103(of hole inwall and combines Fig. 1 E observation directly through hole 102), the most obviously do not reach high efficiency for the laser purpose being converted into Stimulated Light；Even if having the part angle of emergence be not the laser light incident of 0 degree in the wavelength conversion layer of hole inwall, due to center directly from the existence of the fraction of laser light of hole outgoing, the color of overall emergent light is uneven, and the laser at center is necessarily more than the laser of wide-angle.After optical processing element, laser is distributed in hump type, two peaks lay respectively at the both sides of optical axis, optical axis (0 degree) is then in " paddy " between two peaks, the i.e. laser at center is distributed to the position of certain angle of emergence by optical processing element so that laser can all be incident in the wavelength conversion layer 103 of hole inwall.With reference to Fig. 1 E, light 148 is the light of the angle minimum meeting wavelength conversion layer 103 condition being incident in hole inwall, and light 147 is the light of the angle maximum meeting similarity condition, therefore optical processing element seeks to a laser distributed controll between these two light.
In the present embodiment, optical processing element 104 is probably holosraphic grating 104, and its cross sectional shape is a triangle, and as shown in Figure 1B, in Figure 1B, the stain of circular central represents the summit of circular cone to its view looked over along laser optical path.Incident laser is reflected (can certainly holosraphic grating in turn, taper seat is back to laser, and laser the most still can be reflected by taper seat) by the taper seat of holosraphic grating, and to make the angular distribution of laser of outgoing be the first angular range.Such as, in the present embodiment, 141 and 142 is the example of two incident lasers.Without optical processing element 104, then light 141 can direct punched out (as shown in dotted ray 141a)；Due to the existence of optical processing element 104, light 141 is refracted and is incident in the wavelength conversion layer of hole inwall.It is appreciated that, the laser of each collimated incident all can be refracted into an identical angle on the taper seat of holosraphic grating and be incident in the wavelength conversion layer of hole inwall, as long as the angle (i.e. the base angle of optical processing element cross-section triangle in Figure 1A) therefore controlling the taper seat of holosraphic grating just can control the laser emitting angle of outgoing, to reach to control laser light incident in the purpose of the wavelength conversion layer of hole inwall.
Optical processing element can also have some to deform, such as, it is also possible that pyramid lens, its cross sectional shape remains a triangle, and its view looked over along laser optical path is as shown in Figure 1 C.Shown in Fig. 1 C is the lens of a rectangular pyramid shape, the laser that its pyramidal surface equally plays refraction incident makes its outgoing at a certain angle and is incident in the wavelength conversion layer of hole wall, compared with the holosraphic grating shown in Figure 1B, the emergent light distribution of the lens of rectangular pyramid shape is not that circumference is symmetrical, but this has no effect on and realizes the purpose of this utility model.Obviously optical processing element can also is that other any pyramid lens, and such as triangular pyramid lens, hexagonal pyramid shape lens etc., this is not limited by this utility model.It addition, optical processing element can also is that pyramid (or cone) lens arra, i.e. each lens unit are little pyramid lens, so big with one pyramid lens effect is identical, but benefit is that whole element is thinner.It addition, optical processing element can also is that optical diffraction element (DOE, Diffractive
Optical Element).Optical diffraction element is the element that the diffraction effect of the micro structure utilizing its surface carries out phase place to light, angle processes, and it can also realize laser treatment to being in the first angular range and being incident in the purpose of wavelength conversion layer of hole wall.
It is above several possible implementation method of optical processing element is illustrated; but this is not exhaustive to all implementation methods; the most do not constitute restriction of the present utility model; as long as being capable of the purpose by laser treatment to the first angular range the wavelength conversion layer being incident in hole wall, just belong to the optical processing element of this utility model protection.
In the present embodiment, wavelength conversion layer 103 is attached on the inwall in hole 102, is so conducive to heat produced by wavelength conversion layer to be spread by hole inwall；Meanwhile, the pore size that size limit emergent light in hole 102, little hole can make emergent light hot spot diminish, and does not very affect luminous flux simultaneously, therefore can obtain bigger brightness (optical energy density).Preferably, the material of substrate 101 is whiteware material or metallic aluminium, so can high efficiency reflection Stimulated Light and laser, be conducive to promoting whole lighting efficiency.The inwall in hole 102 can such as plate high-reflecting film, or scattered reflection film, to improve reflectance with plated film.
In the present embodiment, for example, laser is blue laser, and wavelength conversion layer includes yellow wavelengths transition material, such emergent light just includes the Stimulated Light of yellow and remaining blue laser thus is mixed into white light.Certainly wavelength conversion layer can also include other material for transformation of wave length, such as green and red material for transformation of wave length, so can make up and be used alone the problem that color rendering index produced by yellow wavelengths transition material is the highest.Such as, laser can also is that Ultra-Violet Laser, and wavelength conversion layer includes the trichroism material for transformation of wave length of red, green, blue, so can also launch white light.These are only laser and the citing of wavelength conversion layer kind, it is clear that light-emitting device can be also used for launching monochromatic light rather than white light, or laser and the material for transformation of wave length of other color can also be used, do not limit.
Another embodiment of light-emitting device of the present utility model is as shown in Figure 2 A.Unlike the embodiment shown in Figure 1A, in the present embodiment, also include the beam condensing unit 206 between lasing light emitter and Wavelength converter light path, in the hole being incident in substrate making laser focusing.Such being advantageous in that being easier to control laser facula all squeezes in hole, and the size in hole can diminish, and so can reduce luminous aperture, improve luminosity.
Because of beam condensing unit 206, the present embodiment is incident in the laser before optical processing element 204 and is distributed as shown in the dotted line in Fig. 2 B.In obvious the present embodiment, sharp photodistributed angular range before optical processing element is bigger compared with Fig. 1 D, but if optical processing element, however it remains the light at center can not be incident in the wavelength conversion layer (dotted ray with reference in Fig. 2 A) of hole wall directly through hole.Therefore needing for optical processing element 204 by the distribution process of laser is the first angular range (shown in solid as in Fig. 2 B) so that laser can be incident in the wavelength conversion layer of hole wall.
It is with another difference of the embodiment shown in Figure 1A, in the present embodiment, also includes the light splitting filter layer 207 between lasing light emitter and Wavelength converter light path, reflect Stimulated Light for transmission laser simultaneously.So the Stimulated Light leaked out from the incidence end in hole can be reflected back, to improve the efficiency of light-emitting device.In the present embodiment, light splitting filter layer 207 is positioned at the light path front end of optical processing element, and the entrance in the hole that preferred light splitting filter layer is close to substrate is placed, so can the Stimulated Light leaked in hole being reflected back in hole with higher efficiency.Preferred, also include the scattering layer between lasing light emitter and Wavelength converter light path (being not drawn in figure), for scattering laser so that laser light incident does not exist " focus " that local energy density is too high when the wavelength conversion layer of hole wall, to improve the light conversion efficiency of wavelength conversion layer.
Another embodiment of light-emitting device of the present utility model is as shown in Figure 3.Unlike the embodiment shown in Fig. 2 A, in the present embodiment, light splitting filter layer 304a is the optical processing element 304 plated film on the face of substrate, and scattering layer 304b is the rough surfaceization process layer on the face of optical processing element 304 substrate dorsad.Laser, after beam condensing unit 306 optically focused, is incident in the inwall in hole after sequentially passing through scattering layer, optical processing element and light splitting filter layer.Such being advantageous in that the number of elements of use is minimum, cost is minimum, assembles the simplest.Certainly, this area engineer according to above description, can arrange order and the processing method of these optical elements according to specific needs, it is also possible to adding other optical elements, this broadly falls into protection domain of the present utility model.
It is scattered owing to laser light incident has part after the wavelength conversion layer of hole inwall and reflects, the most also having fraction of laser light and leak out from the arrival end in hole.In the present embodiment, it is preferred that the laser of light splitting filter layer 304a transmission the first angular range, at least part of laser beyond the first angular range is reflected.The most both can ensure that and can pass through light splitting filter layer from the laser of lasing light emitter outgoing, it is also possible to recycled being in the fraction of laser light beyond the first angular range is reflected back hole from the laser that hole arrival end leaks, with maximum raising efficiency.
This utility model also proposes a kind of light fixture, including above-mentioned light-emitting device as light source.
This utility model also proposes a kind of projection display equipment, including above-mentioned light-emitting device as light source.
In this specification, various piece uses the mode gone forward one by one to describe, and the explanation of each some importance is the difference with other parts, identical similar portion cross-reference between various piece.The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other correlative technology fields, the most in like manner it is included in scope of patent protection of the present utility model.
Claims (10)
1. a light-emitting device, it is characterised in that:
Including Wavelength converter, this Wavelength converter includes substrate with holes and is attached to the wavelength conversion layer of hole inwall；
Also include lasing light emitter and optical processing element, the laser light incident that lasing light emitter sends is in optical processing element and after it processes, the angular distribution of laser is the first angular range so that laser can all be incident in the wavelength conversion layer of hole inwall, and excitation wavelength conversion layer makes it launch Stimulated Light.
Light-emitting device the most according to claim 1, it is characterised in that also include the beam condensing unit between lasing light emitter and Wavelength converter light path, in the hole being incident in substrate making laser focusing.
Light-emitting device the most according to claim 1, it is characterised in that also include the light splitting filter layer between lasing light emitter and Wavelength converter light path, reflects Stimulated Light for transmission laser simultaneously.
Light-emitting device the most according to claim 3, it is characterised in that the laser of described light splitting filter transmission the first angular range, reflects at least part of laser beyond the first angular range.
Light-emitting device the most according to claim 3, it is characterised in that described light splitting filter layer is close to the entrance in the hole of substrate.
Light-emitting device the most according to claim 1, it is characterised in that also include the scattering layer between lasing light emitter and Wavelength converter light path, for scattering laser.
Light-emitting device the most according to claim 1, it is characterised in that described optical processing element is holosraphic grating or pyramid lens or optical diffraction element.
Light-emitting device the most according to any one of claim 1 to 7, it is characterised in that the material of described substrate is whiteware material or metallic aluminium.
9. a light fixture, it is characterised in that include that light-emitting device according to any one of claim 1 to 8 is as light source.
10. a projection display equipment, it is characterised in that include that light-emitting device according to any one of claim 1 to 8 is as light source.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015105750846 | 2015-09-10 | ||
| CN201510575084 | 2015-09-10 |
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| CN205581505U true CN205581505U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610239709.6A Pending CN106527025A (en) | 2015-09-10 | 2016-04-18 | Light emitting device, lamp and projection display device |
| CN201620323671.6U Active CN205581505U (en) | 2015-09-10 | 2016-04-18 | Illuminator , lamps and lanterns and projection display equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610239709.6A Pending CN106527025A (en) | 2015-09-10 | 2016-04-18 | Light emitting device, lamp and projection display device |
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| CN (2) | CN106527025A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527025A (en) * | 2015-09-10 | 2017-03-22 | 杨毅 | Light emitting device, lamp and projection display device |
| CN110886977A (en) * | 2018-09-10 | 2020-03-17 | 深圳市绎立锐光科技开发有限公司 | Light emitting device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848589A (en) * | 2019-12-03 | 2020-02-28 | 广东省半导体产业技术研究院 | Wavelength conversion device and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1148599C (en) * | 2002-03-08 | 2004-05-05 | 中国科学院上海光学精密机械研究所 | Optical system with focal length regulatable long-distance axial focusing |
| WO2009092041A2 (en) * | 2008-01-16 | 2009-07-23 | Abu-Ageel Nayef M | Illumination systems utilizing wavelength conversion materials |
| JP2012129151A (en) * | 2010-12-17 | 2012-07-05 | Seiko Epson Corp | Light-emitting element, light source device, and projector |
| US8449129B2 (en) * | 2011-08-02 | 2013-05-28 | Xicato, Inc. | LED-based illumination device with color converting surfaces |
| CN103836542B (en) * | 2012-11-22 | 2015-10-07 | 深圳市光峰光电技术有限公司 | Wavelength converter, light-source system and relevant projecting system thereof |
| CN103017684A (en) * | 2013-01-08 | 2013-04-03 | 长春理工大学 | Device and method for detecting roundness and straightness of cylindrical holes by coaxial light |
| CN104141923A (en) * | 2013-05-09 | 2014-11-12 | 陶晓培 | Converter for converting laser device into lighting device |
| CN204372585U (en) * | 2014-12-15 | 2015-06-03 | 杨毅 | Light-emitting device |
| CN204372822U (en) * | 2014-12-15 | 2015-06-03 | 杨毅 | Wavelength converter and light-emitting device |
| CN104566231A (en) * | 2014-12-24 | 2015-04-29 | 杨毅 | Wavelength conversion device and light-emitting device |
| CN106527025A (en) * | 2015-09-10 | 2017-03-22 | 杨毅 | Light emitting device, lamp and projection display device |
-
2016
- 2016-04-18 CN CN201610239709.6A patent/CN106527025A/en active Pending
- 2016-04-18 CN CN201620323671.6U patent/CN205581505U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106527025A (en) * | 2015-09-10 | 2017-03-22 | 杨毅 | Light emitting device, lamp and projection display device |
| CN110886977A (en) * | 2018-09-10 | 2020-03-17 | 深圳市绎立锐光科技开发有限公司 | Light emitting device |
| CN110886977B (en) * | 2018-09-10 | 2021-07-27 | 深圳市绎立锐光科技开发有限公司 | Light emitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106527025A (en) | 2017-03-22 |
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