Composite concentration lighting source and projector applying same

A lighting source and light-concentrating technology, which is applied to the components of lighting devices, electric light sources, lighting devices, etc., can solve the problems of limited number of light-emitting diodes or laser diodes, large divergence of emitted light, and insufficient light intensity of light sources, etc.

CN102486271AInactive Publication Date: 2012-06-06QISDA OPTRONICS (SUZHOU) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-06-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a composite concentration lighting source and a projector applying the same, wherein the lighting source comprises two layers of composite basal plates; a first group of light sources are distributed on the front basal plate along the emergent direction, a collimating lens is assembled at the front end of the emergent direction of the selectable arbitrarily light source, so the emergent light of the light source is collimating light, through holes are respectively arranged at the arrangement clearances of all the light sources on the front basal plate, a second group of light sources which are correspondingly distributed are assembled on the rear basal plate along the emergent direction, and are arranged opposite to the through holes, meanwhile, a collimating lens is also assembled at the front end of the emergent direction of the light sources of the rear basal plate in a selection way. The through holes which are arranged at the clearances of the front basal plate are utilized, the light sources which are arranged on the rear basal plate are oppositely arranged to the through holes, so the condensation of the collimating lens is combined, under the condition of the invariable area of the basal plate, the density of the lighting source is improved, and the strength of the total light sources is increased.
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Description

technical field

[0001] The invention relates to an electro-optical conversion lighting source and its application in a projector, in particular to a composite spotlight lighting source with collimated outgoing light and concentrated light intensity and a projector device using the lighting source. Background technique

[0002] In lighting systems using light-emitting diodes as light sources, especially for lighting systems where light-emitting diodes are arranged on the same plane and in the same direction as light sources on the circuit substrate, in order to improve the total luminous intensity of the light source, it is necessary to Set as many LEDs as possible. However, due to the size of the package of the light source itself, the number of light-emitting diodes or laser diodes that can be placed on the fixed circuit substrate is limited; and the light-emitting diodes or laser diodes arranged in a plane are used as light sources, and the emitted light has a large diverg...

Examples

Embodiment 1

[0017] The invention utilizes the principle that the collimating lens can converge the divergence angle of the light beam so that it can be collimated and emitted. To improve the traditional planar arrangement of light sources, a concentrating lighting source is proposed, and compounded by double-layer substrates, the composite light source structure of two groups of light sources is dislocated, forming a new technology of composite concentrating lighting source , can significantly increase the total luminous intensity of the light source.

[0018] Its structural features are as figure 1 and figure 2 As shown, the structure of the lighting source with a single substrate as the basic component is: the light sources are arranged in an array on the substrate, and the lighting source is provided with a collimating lens at the front end of each light source in the light emitting direction, so that the emitted light of the light source It is collimated light. For the entire subst...

Embodiment 2

[0021] Such as image 3 It can be seen that the parts of this embodiment that are the same as those of the above-mentioned embodiment 1 are sufficiently understood from the above description, and will not be repeated here. The difference is that the arrangement of each light source on the substrate is not limited to an array arrangement, and can also be various feasible planar arrangements, such as image 3 The present embodiment shown is a ring arrangement structure. It can be seen from the front of the previous substrate 1 that two ring-shaped light-emitting diodes 52 are distributed at the same center of the circle, and the transfer substrate 1 is set in the gap between the two rings. There are a plurality of through holes 3 . In contrast, laser diodes 51 (or light emitting diodes 52 ) are arranged in a ring shape on the latter substrate, corresponding to the through holes 3 of the former substrate 1 one by one.

[0022] When the composite concentrating lighting source is...