Lens, lens assembly and manufacture method of lens

Abstract

A lens includes: a lens body, including an optical effective part and an extending part, wherein the extending part surrounds a periphery region of the optical effective part, and the extending part has at least one annular surface; and an opaque layer, disposed on the annular surface of the extending part. An optical imaging lens set includes a barrel; and an imaging component is disposed in the barrel. The imaging component includes at least one lens arranged along an optical axis, and one of these lenses is the lens mentioned above. A method for forming a lens forms the opaque layer on the annular surface of the extending part through a stamping method or through an evaporation method.

Description

technical field [0001] The invention relates to the field of optical device manufacturing, in particular to a lens, a lens and a manufacturing method thereof. Background technique [0002] General photography lenses such as figure 1 As shown, it generally includes a lens barrel, a plurality of lenses, and several gaskets, wherein the gasket is arranged between the lens barrel and the lenses, or between the lenses, and is made of light-tight and anti-reflection Made of materials, when the light passes through the lenses and forms an image on an imaging surface, the gasket can absorb or reflect stray light to prevent the stray light from reaching the imaging surface and cause flare (flare), so as to improve the quality of imaging . [0003] However, consumers have higher and higher requirements for image quality, coupled with the thinning trend of photographic lenses, the size of gaskets must be smaller, and the effect of eliminating stray light must be better, making the ma...

AI Technical Summary

Problems solved by technology

[0003] However, consumers have higher and higher requirements for image quality, coupled with the thinning trend of photographic lenses, the size of gaskets must be smaller, and the effect of eliminating stray light must be better, making the manufacture of gaskets more difficult; In addition, the gasket can only be laid flat on the surface of the lens. If the surface of the lens has a tapered surface, the gasket cannot be installed, which makes the installation of the gasket very limited. Therefore, the industry has been actively looking for other methods that can assist or even replace the traditional method of eliminating stray light.

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