Light source device

Abstract

Light source device' of the invention transforms a dot light source, especially an irradiance two-pole tube, into a face light source which owns some forms of intension distribution and vector distribution. The invention includes a reflecting curved face, one or several light sources that lie along the curved face side. Depending the requirement, the reflecting curved face can change distribution forms of reflex vectors in the space and intension distribution forms of reflex on the irradiation surface or in the light transmitting plank; The light source of the invention includes LED. The forms of reflex contains: 'vector distribution' ,'intension distribution', or something between them. Vector distribution represents that light vectors have a unitive direction or they are nearly parallel in space while intension distribution represents that reflex is well-proportioned on the irradiation surface or in the light transmitting plank. The invention can be used for light sources of weakening light modules of various flat displays.

Description

Technical field [0001] The "light source device" of the present invention is mainly a kind of point light source-especially light emitting diode-converted into a surface light source with a certain intensity distribution type and a certain vector distribution type, characterized in that the point light source is located in the reflective The side position of the curved surface, and the reflective curved surface can be flexibly designed according to the distribution pattern of the light vector in the space and the intensity distribution pattern of the reflected light in the illuminated surface or inside the light guide plate. Its application range includes mobile phones, personal numbers Assistant (PDA PERSONAL DIGITAL ASSISTANT), notebook computer monitor and other various flat-panel display backlight module light source, and light source for general lighting. Background technique [0002] The light source commonly used in mobile phones, personal digital assistants (PDA PERSONAL ...

AI Technical Summary

Problems solved by technology

[0014] The object of the present invention is to provide a light source device. The "light source device" solves the problem of using a large number of light-emitting diodes when the conventional light-emitting diodes are converted into planar light sources, uneven brightness, and difficulty in heat dissipation when using a higher voltage. The lack of directionality leads to problems such as difficulty in the design of the backlight module; it also provides a uniform and directional surface light source, and has high energy efficiency, uses less light-emitting diodes, and has better heat dissipation

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