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Light guiding cylinder

A cylinder and light guide technology, which is applied in optics, light guides, optical components, etc., can solve problems such as discomfort and glare, and achieve the effect of improving the uniformity of light output and improving the efficiency of light utilization

Inactive Publication Date: 2013-03-27
WINTEK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since light-emitting diodes are point light sources, as the luminous intensity becomes higher and higher, the extremely high-intensity light will be concentrated on one point.
When such a point light source is used for general lighting purposes, it is easy to make the human eyes looking directly at the point light source feel uncomfortable, that is, glare

Method used

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  • Light guiding cylinder
  • Light guiding cylinder
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Embodiment Construction

[0031] Figure 1A is a schematic perspective view of a light guide cylinder according to an embodiment of the present invention, and Figure 1B for Figure 1A The cross-sectional schematic diagram of the light guide cylinder along the section line I-I'. Please also refer to Figure 1A and Figure 1B , the light guiding cylinder 100 includes a cylindrical body 110 and an auxiliary body 120 . The cylindrical body 110 includes two end surfaces 112 and a cylindrical surface 114, wherein Figure 1B The section shown is, for example, parallel to the end faces 112 . The two end surfaces 112 are located on opposite sides of the cylindrical surface 114 , and the cylindrical surface 114 includes a light emitting area 114A and a light guiding area 114B that are substantially opposite to each other. In this embodiment, the cylindrical body 110 is an example of a circular cylindrical body, but in other embodiments, the cylindrical body 110 can also be an elliptical cylindrical body, tha...

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Abstract

The invention relates to a light guiding cylinder. The light guiding cylinder comprises a cylindrical body and an auxiliary body, wherein the cylindrical body comprises two end faces and a cylindrical face; the two end faces are positioned on two opposite sides of the cylindrical face; the cylindrical face comprises a light emerging area a light guiding area which are substantially opposite to each other; and the auxiliary body is embedded into the cylindrical body and provided with a plurality of micro structures and is close to the light guiding area. The refraction index of the auxiliary body is different from that of the cylindrical body. The emerged light uniformity of equipment with the light guiding cylinder can be improved by the light guiding cylinder.

Description

technical field [0001] The invention relates to a light guide element, in particular to a cylindrical light guide cylinder. Background technique [0002] With the advancement of semiconductor technology, the power that light-emitting diodes (light-emitting diodes, referred to as: LEDs) can achieve is increasing, and the intensity of the light emitted is increasing. In addition, light-emitting diodes have power-saving , long service life, environmental protection, fast start-up, small size and other advantages make the application level of light-emitting diodes more and more extensive. This application layer includes lighting, traffic signs, displays, optical mice, etc. [0003] However, since the light emitting diode is a point light source, as the luminous intensity becomes higher and higher, the light with extremely high intensity will be concentrated on one point. When such a point light source is used for general lighting purposes, it is easy to cause discomfort to hum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/00F21V8/00F21V7/00
Inventor 叶志庭黄国瑞李修平
Owner WINTEK CORP