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Optical lens

An optical lens and lens technology, applied in the field of optical lenses, can solve the problems that optical lenses cannot meet the requirements of miniaturization, high resolution and large aperture, and achieve the effects of good optical performance, high resolution and short total length

Active Publication Date: 2020-09-15
SINTAI OPTICAL SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an optical lens with short overall lens length, high resolution, and Small f-stops, but still good optical performance

Method used

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Embodiment Construction

[0030] The present invention provides an optical lens, comprising: a first lens, a second lens, a third lens, a fourth lens and a fifth lens, wherein the first lens, the second lens, the third lens, the fourth lens and the fifth lens Arranged in sequence from the projection side to the image source side along the optical axis.

[0031] According to one or more embodiments of the present invention, the first lens has positive refractive power. The first lens is made of glass material, for example. The projection side of the first lens can be, for example, a spherical surface, and the side of the image source can be, for example, a spherical surface.

[0032] According to one or more embodiments of the present invention, the second lens has negative refractive power. The second lens is made of glass material, for example. The projection side of the second lens can be, for example, a spherical surface, and the side of the image source can be, for example, a spherical surface. ...

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PUM

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Abstract

An optical lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens element has positive refractive power. The second lens element has negative refractive power. The third lens element has negative refractive power. The fourth lens element has refractive power and has a concave surface facing the projection side. The fifth lens element has positive refractive power. The first lens, the second lens, the third lens, the fourth lens and the fifth lens are sequentially arranged from a projection side to an image source side along the optical axis. The optical lens satisfies the following conditions: -2.10 < = f2 / f < = -1.38, wherein f is the effective focal length of the optical lens, and f2 is the focal length of the second lens.

Description

technical field [0001] The invention relates to an optical lens. Background technique [0002] The current development trend of optical lenses used in projectors, in addition to the continuous development towards miniaturization, also requires the ability to have high resolution and large aperture with different application requirements. Existing optical lenses can no longer meet today's needs. , another optical lens with a new structure is needed to meet the needs of miniaturization, high resolution and large aperture at the same time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an optical lens with short overall lens length, high resolution, and Smaller f-stops, but still good optical performance. [0004] The technical solution adopted by the present invention to solve the technical problem is to provide an optical lens including a first lens, a second lens, a third lens, a fourth lens and a fifth lens. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00
CPCG02B13/0015
Inventor 王智鹏
Owner SINTAI OPTICAL SHENZHEN CO LTD
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