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Optical lens assembly

An optical lens, optical lens technology, applied in optical components, optics, electrical components, etc., can solve problems such as beam loss, contrast reduction, color distortion, etc., to achieve the effect of reducing loss rate and improving brightness

Inactive Publication Date: 2005-07-20
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the light beam passes through the cooling cavity, the light reflection is large, and the light beam loss is serious, resulting in a decrease in the brightness and contrast of the picture, especially the red light (one of the three primary colors of red, green and blue), which represents the vividness of the picture, has the largest loss and serious color distortion.
PECC technology will lead to an increase in cost. According to industry estimates, the manufacturing cost of the cooling chamber after using the PECC process will increase by more than ten times.

Method used

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Embodiment Construction

[0010] The optical lens assembly of the present invention includes an optical lens, a projection tube, a cooling liquid and a cooling cavity. The optical lens adopts the existing technology, which is composed of multiple groups of professional lenses. Before the beam is projected to the reflector, the multiple groups of lenses can achieve full-screen convergence and filter out noise interference, so that the light emitted by the projection tube is more Pure, making the color more real and rich. The projection tube adopts the existing 7-inch projection tube. The cooling liquid is accommodated in the cooling chamber. The surface of the cooling cavity has a coating, which is a Teflon (PTFE) coating, which is a non-stick coating with polytetrafluoroethylene and other fluorides as main components. After sintering at 380°C for 15 minutes, it has good adhesion fastness and surface hardness, strong corrosion resistance, and the heat resistance can reach 300°C without abnormality. In...

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Abstract

The optical lens subassembly of this invention includes the optical lens, the projective tube, the coolant and the cooling cavity with a Teflon coat whose basis is polyvinyl fourfold fluoride.On the side of the cooling cavity there equipped a cooling plate. Because the cooling cavity adopts a Teflon coat, according to the physical characteristics of Teflon material, the light losing rate of the subassembly in the process of light transmission and reflection has decreased, which make the brightness upgrade, the screen more vivid so as to improve the screen quality.

Description

【Technical field】 [0001] The invention relates to an optical lens assembly, in particular to an optical lens assembly applied to a digital light display rear projection. 【Background technique】 [0002] The existing optical lens assembly generally includes a projection tube, a cooling liquid, a cooling chamber and an optical lens, and the cooling liquid is accommodated in the cooling chamber. The cooling chamber generally uses PECC for surface treatment. PECC is the abbreviation of "surface ceramic technology". PECC technology is an anodic oxidation treatment technology enhanced by plasma arc discharge in a liquid medium, which is suitable for aluminum, titanium and magnesium. , niobium, zirconium, tantalum, zinc and other metal materials. It is the civilian transformation of military technology, and is now widely used in decorative building materials. Its principle is similar to the anodic oxidation technology of metal materials, the difference is that the chemical reaction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02G03B21/00H04N5/74
Inventor 王和仁
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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