Film coating glass lens

A technology for coating glass and lenses, applied in instruments, coatings, optics, etc., can solve problems such as bending or deformation of glass substrates, affecting optical predetermined performance, affecting product quality, etc., to achieve the effect of increasing transmittance

Inactive Publication Date: 2006-03-22
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
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Problems solved by technology

[0003] Coated glass lenses in the prior art, such as infrared cut-off filter lenses (Infra-Red Filter) and low-pass filter lenses (Low Pass Filter), etc., are usually coated with multi-layer films on one side of a glass substrate to achieve the required functions. However, in order to meet the application characteristics and needs of various products today, the glass substrates used are getting thinner and thinner, with a

Method used

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Example Embodiment

[0010] See also figure 1 versus figure 2 The coated glass lens of the present invention includes a glass substrate 10, a first film layer 20 and a second film layer 30, wherein the first film layer 20 is formed on the first surface of the glass substrate 10 by a multilayer optical film 201, The second film layer 30 is formed by a corresponding number of AR coating (Anti-Reflection coating) 301 on the other surface of the glass substrate 10 corresponding to the first surface.

[0011] The substrate 10 usually has a thickness of 0.175 to 0.3 mm, or even thinner. The optical film 201 can be any one or a combination of filter films, spectroscopic reflective films, broadband multilayer films, and narrowband multilayer films. Infra-Red coating (IR-CUT coating, Infra-Red coating) is taken as an example. The multilayer optical film 201 is formed by stacking two kinds of high and low refractive index material films at intervals. The high refractive index material film can be made of two p...

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Abstract

The film coating glass lens includes one glass substrate, the first film layer formed on the first surface of the glass substrate, and the second film layer formed on the other surface of the glass substrate. The first film layer consists of several layers of optical films, and the second film layer consists of several layers of anti-reflecting films. The optical films and the anti-reflecting films have corresponding layer numbers to maintain the balance of surface tensions of the glass substrate and the increased transmittance. The film coating glass lens has the stress produced in coating films eliminated and has raised optical performance.

Description

【Technical field】 [0001] The invention relates to a glass lens, in particular to a coated glass lens. 【Background technique】 [0002] For a glass lens in an ideal state, the light can completely pass through the glass lens and be fully focused on the film or CCD (Charge Coupled Device, Charge Coupled Device), but any object has a reflection effect on the light. Lanthanum oxide optics Take glass as an example, its light transmittance can reach 90%, and the remaining 10% of the light is reflected as glare; in addition, the general glass lens has poor wear resistance and corrosion resistance, and long-term use will easily lead to wear and deterioration of the mirror surface Furthermore, with the demand for lenses with various functions, glass lenses generally require surface coating treatment after forming, that is, to form coated glass lenses. Grinding film, anti-reflection film, broadband multi-layer film, narrow-band multi-layer film, spectroscopic film, filter film and ref...

Claims

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Application Information

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IPC IPC(8): G02B1/11G02B1/10C03C17/36
Inventor 张庆州
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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