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Projection system and light pipe thereof

A technology of projection system and light guide, applied in the field of projection system and its light guide, which can solve the problems of rising ambient temperature, small bearing surface, deterioration and embrittlement of adhesive 122, etc., and achieve the effect of optimal structural strength and uniform light brightness

Inactive Publication Date: 2008-06-25
PRODISC TECH INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since a space for the adhesive 122 must be left between the optical elements 121 and the optical elements 121, the bearing surface between the optical elements 121 is relatively small (such as figure 2 As shown in S), when the light guide 12 is impacted by an external force, each optical element 121 may be separated due to insufficient structural strength, thereby affecting the performance of the light guide 12
In addition, since the temperature of the light beam emitted by the light source 10 is quite high, the ambient temperature is relatively increased, causing the adhesive 122 of the light guide 12 adjacent to the light source 10 to easily deteriorate and become brittle, which also leads to insufficient structural strength of the optical element 121 of the light guide 12. the phenomenon of separation
[0006] It can be seen that the above-mentioned existing projection system and its light guide obviously still have inconvenience and defects in structure and use, and need to be further improved urgently.
In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve

Method used

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  • Projection system and light pipe thereof
  • Projection system and light pipe thereof
  • Projection system and light pipe thereof

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Embodiment Construction

[0067] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, structure, characteristics and details of the projection system and its light guide proposed according to the present invention will be described below. Its effect is described in detail below.

[0068] First, see image 3 Shown in order to illustrate the light guide 2 of the first embodiment of the present invention. In this embodiment, the light guide 2 has a light guide body 21 and a first reinforcing element 22 .

[0069] like image 3 As shown, the light pipe body 21 has an inner surface 21a and an outer surface 21b, and the inner surface 21a of the light pipe body 21 forms a light channel 21c.

[0070] In this embodiment, the light guide body 21 is taken as an example with two first optical elements 211 and two se...

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Abstract

The invention relates to a projection system and an optical pipe of the system, wherein, the optical pipe comprises an optical pipe body and a first strengthened element; the optical pipe body has an internal surface and an external surface with the internal surface formed into an optical channel; the first strengthened element is arranged on the external surface of the optical pipe body. The invention also discloses a projection system which comprises a light source, a color wheel component and an optical pipe. The invention has better structural strength.

Description

technical field [0001] The invention relates to a display system and its light guide, in particular to a projection system and its light guide. Background technique [0002] Due to the multiple requirements of large display area, miniaturization and lightweight systems, image projection systems have become one of the most popular sub-items in the optoelectronic industry. [0003] see figure 1 As shown, the image projection system is referred to as the projection system 1 here for short, and it has a light source 10, a color wheel assembly 11, a light guide (Light Tunnel) 12, a lens assembly 13, a digital micro-mirror device (Digital Micro-mirror) Device, DMD) 14 and a projection unit 15. The light source 10 emits light to the color wheel assembly 11 and then enters the light guide 12, and then focuses on the digital micromirror device 14 through the lens assembly 13, and controls the complex micromirrors on the digital micromirror device 14 by driving electrodes (not shown...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/00G03B21/14G03B21/00
Inventor 张光华王志煌张介一赖孝武
Owner PRODISC TECH INC
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