Lens Assembly

一种成像镜头、透镜的技术，应用在成像镜头领域，能够解决降低成本等问题，达到降低生产成本、解决热效应问题、良好光学性能的效果

Inactive Publication Date: 2015-08-26
SINTAI OPTICAL SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the technical problem to be solved by the present invention is to provide an imaging lens that can solve the thermal effect problem and reduce the cost in view of the defect that the imaging lens in the prior art cannot solve the thermal effect problem and reduce the cost

Method used

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Examples

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Embodiment Construction

[0034] see figure 1 , figure 1 It is a schematic diagram of lens configuration and optical path according to the first embodiment of the imaging lens of the present invention. The imaging lens 1 sequentially includes a diaphragm ST1, a first lens L11, a second lens L12, a third lens L13, a fourth lens L14 and an optical filter OF1 from the object side to the image side along the optical axis OA1. During imaging, the light from the object side is finally imaged on the imaging surface IMA1. The first lens L11 is a biconvex lens made of plastic material, and its object side S12 and image side S13 are both aspheric surfaces. The second lens L12 is a biconcave lens made of plastic material, and its object side S14 and image side S15 are both aspheric surfaces. The third lens L13 is a biconvex lens made of glass, and its object side S16 and image side S17 are both aspheric surfaces. The fourth lens L14 is made of plastic material, the object side S18 is concave, the image side S...

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Abstract

A lens assembly includes a fifth lens, a first lens, a second lens, a third lens and a fourth lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The second lens is a biconcave lens. The third lens is a biconvex lens and made of glass material. The fourth lens includes a concave surface facing the object side.

Description

technical field [0001] The invention relates to an imaging lens. Background technique [0002] In order to solve the problem of thermal performance (Thermal Performance), currently known lenses mostly use an all-glass lens design. Although the lens with all glass lenses can solve the thermal effect problem, it cannot reduce the production cost and is not easy to assemble and produce. Contents of the invention [0003] In view of this, the technical problem to be solved by the present invention is to provide an imaging lens that can solve the thermal effect problem and reduce the cost at the same time as the imaging lens in the prior art cannot solve the thermal effect problem and reduce the cost. [0004] The technical solution adopted by the present invention to solve the technical problem is to provide an imaging lens, which sequentially includes a first lens, a second lens, a third lens and a fourth lens along the optical axis from the object side to the image side. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18G02B1/04G02B1/00
CPCG02B9/60G02B1/041G02B13/18G02B13/004G02B13/0045G02B13/007
Inventor 张锡龄
Owner SINTAI OPTICAL SHENZHEN CO LTD
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