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Light source device

一种发光器件、器件的技术，应用在光源、光学元件、点状光源等方向，能够解决电灯泡或荧光灯短寿命、使用时间流逝、照明度降低等问题，达到减小制造成本、防止颜色失真、减少部件数量的效果

Active Publication Date: 2011-11-23
SUZHOU LEKIN SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, light bulbs or fluorescent lamps have a short lifespan requiring frequent replacement
In addition, conventional fluorescent lamps degrade due to the passage of time
Therefore, its illuminance is often gradually reduced

Method used

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Examples

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Embodiment Construction

[0035] It will be understood that when an element is referred to as being "on" or "under" another element, it can be directly on / under the element, and one or more intervening elements may also be present. When an element is referred to as being "on" or "under", "under the element" as well as "on the element" may be included based on the element.

[0036] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings.

[0037] figure 1 is a perspective view showing a light source device according to an embodiment of the present invention. figure 2 is a view showing a light source unit of a light source device according to an embodiment of the present invention. image 3 is a view showing an arrangement structure of light emitting devices of a light source unit according to an embodiment of the present invention. Figure 4 is a view showing the structure of a phosphorescent film according to an embodiment of the present invention.

[0...

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PUM

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Abstract

Disclosed is a light source device. The light source device includes: a light guide plate; a reflector disposed under the light guide plate; a light source unit optically coupled to the light guide plate; and a photo luminescent film disposed between the light guide plate and the light source unit, wherein the photo luminescent film includes at least two partitioned areas, and wherein a first fluorescent material included in at least one area of the at least two areas is different from a second fluorescent material included in the other areas.

Description

technical field [0001] This embodiment relates to a light source device. Background technique [0002] Generally, light bulbs or fluorescent lamps are generally used as indoor or outdoor lighting. However, light bulbs or fluorescent lamps have a short lifespan, requiring frequent replacement. In addition, conventional fluorescent lamps degrade due to the lapse of their usage time. Therefore, its illuminance often decreases gradually. [0003] In order to overcome such problems, lighting devices are now being developed by using light emitting devices (hereinafter referred to as LEDs). LEDs are easy to control, and have fast response speed, high electro-optical conversion efficiency, long life, low power consumption and high brightness. LEDs are also used to create emotional lighting. [0004] Light emitting device (LED) lighting is the next generation of lighting. Since LED lighting uses a semiconductor device and a lamp having a wavelength longer than that of ultraviol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V13/00F21Y101/02
CPCG02B6/0023G02B6/0035G02B6/0073G02B6/0076
Inventor 金润河李相勋申铉河
Owner SUZHOU LEKIN SEMICON CO LTD
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