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Light source module

A light source module and light beam technology, applied in the field of light source, can solve the problem that the local light intensity of the surface light source cannot be changed or controlled according to the demand

Inactive Publication Date: 2011-06-01
YOUNG LIGHTING TECHNOLOGY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the diffused dots on the light guide plate 210 are manufactured, the light intensity distribution of the surface light source is determined, which makes it impossible for users to change or control the local light intensity of the surface light source as required

Method used

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Examples

Experimental program
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Effect test

no. 1 example

[0024] 3A is a top view of the light source module according to the first embodiment of the present invention, and FIG. 3B is a cross-sectional view of the light source module in FIG. 3A along line I-I. Referring to FIG. 3A and FIG. 3B , the light source module 300 of this embodiment includes a light guide plate 310 , a plurality of first light emitting elements 320 and a plurality of second light emitting elements 330 . The light guide plate 310 has an upper surface 312 , a lower surface 314 opposite to the upper surface 312 , and a side surface 316 connecting the upper surface 312 and the lower surface 314 . The first light emitting element 320 is disposed beside the side surface 316 , and the second light emitting element 330 is disposed below the lower surface 314 . In this embodiment, the first light emitting element 320 and the second light emitting element 330 are, for example, light emitting diodes. In addition, in this embodiment, the light source module 300 further ...

no. 2 example

[0031] FIG. 4A is a top view of the light source module according to the second embodiment of the present invention, in which the power supply unit is omitted for the sake of simplification of the drawing. FIG. 4B is a cross-sectional view of the light source module in FIG. 4A along line II-II. Referring to FIG. 4A and FIG. 4B , the light source module 300a of this embodiment is similar to the above-mentioned light source module 300 (as shown in FIG. 3A ), and the differences between the two are as follows. In this embodiment, the reflective unit 340a includes a plurality of strip-shaped openings 342a, and the carrier 380a penetrates the reflective unit 340a through the strip-shaped openings 342a, and is adapted to move along the extending direction of the strip-shaped openings 342a, for example, along the direction A1 , A2, A3 or A4 moves. The second light emitting element 330 is driven by the carrier 380a, and the second light emitting element 330 is adapted to move on the ...

no. 3 example

[0035] 6 is a cross-sectional view of a light source module according to a third embodiment of the present invention, in which a power supply unit is omitted for simplification of the drawing. Referring to FIG. 6 , the light source module 300 b of this embodiment is similar to the above-mentioned light source module 300 a (as shown in FIG. 4B ), and the differences between the two are as follows. In the light source module 300b, the reflective unit 340b does not have the strip-shaped opening 342a (as shown in FIG. 4A ). In addition, in this embodiment, the reflective unit 340b is, for example, a light box with a reflective function. In addition, the light source module 300b further includes a plurality of operating units 410, and these operating units 410 and the carrier 380b are respectively disposed on opposite sides of the reflecting unit 340b. Materials of the operation unit 410 and the carrier 380b are both ferromagnetic substances. In this embodiment, both the operatin...

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Abstract

The invention relates to a light source module which comprises a light guide plate, at least one first light emitting element and at least one second light emitting element. The light guide plate is provided with an upper surface, a lower surface opposite to the upper surface and a side surface connected with the upper surface and the lower surface; the first light emitting element is arranged beside the side surface and is suitable for emitting a first beam which enters the light guide plate through the side surface and transmits outside the light guide plate through the upper surface; the second light emitting element is arranged below the lower surface and is suitable for emitting a second beam which enters the light guide plate through the lower surface and transmits outside the lightguide plate through the upper surface.

Description

technical field [0001] The present invention relates to a light source, and in particular to a light source module with two types of incident light. Background technique [0002] FIG. 1 is a schematic structural diagram of a conventional direct-type light source module. Referring to FIG. 1 , a conventional direct-type light source module 100 includes a reflector 110 , a plurality of LEDs 120 and a diffusion plate 130 . The LED 120 is adapted to emit a light beam 122 toward the diffuser plate 130 . When the light beam 122 passes through the diffusion plate 130, it will be diffused into a surface light source. [0003] The light beam 122 emitted by the LED 120 is directional, and the divergence angle of the light beam 122 is limited. Therefore, when the distance between the LEDs 120 and the diffuser 130 (namely the light mixing distance D) is large, the light mixing effect of the light beams 122 emitted by two adjacent LEDs 120 is better, thus producing a more uniform surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V8/00F21V19/00F21V7/00F21Y105/00F21Y115/10
Inventor 周维仁张家豪
Owner YOUNG LIGHTING TECHNOLOGY INC