Lens device

A lens, lens technology, used in telescopes, optics, instruments, etc., to achieve the effect of short overall lens length and good optical performance

Pending Publication Date: 2022-04-12
SINTAI OPTICAL SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned known periscope lens device is applied to a mobile phone to shorten the thickness of the mobile phone, the total length of the lens (the distance between the first reflective surface Sref and the imaging surface IMA along the optical path OA) has not been shortened.

Method used

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Embodiment Construction

[0023] The present invention provides a lens device, comprising: at least one lens group, the lens group enters the lens device from the first side to the second side along the optical path for imaging arrangement; a first reflective assembly, the first reflective assembly includes a first reflective On the surface, the first reflective component is arranged between the first side and the lens group; and the second reflective component, the second reflective component includes a second reflective surface, and the second reflective component is arranged between the first reflective surface and the second side The lens device meets the following conditions: 22mm<G1+LB<49mm; where G1 is the maximum optical effective diameter of all lenses of the lens group closest to the first side, and LB is the distance between the first reflective surface and the second reflective surface on the optical path spacing.

[0024] see figure 2 , figure 2 It is a schematic diagram of the first e...

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Abstract

A lens device comprises at least one lens group, a first reflection assembly and a second reflection assembly. The lens group enters the lens device from the first side to the second side along an optical path for imaging arrangement. The first reflection assembly comprises a first reflection surface and is arranged between the first side and the lens group. The second reflection assembly comprises a second reflection surface and is arranged between the first reflection surface and the second side. The lens device satisfies the following conditions: 22 mmlt; g1 + LBlt; the thickness is 49mm; wherein G1 is the maximum optical effective diameter of all the lenses of the lens group closest to the first side, and LB is the distance from the first reflecting surface to the second reflecting surface on the optical path.

Description

technical field [0001] The invention relates to a lens device. Background technique [0002] see figure 1 , figure 1 It is a schematic diagram of a known periscope lens device. The lens device 10 includes a first reflection component P, a first lens group LG1, a second lens group LG2, a third lens group LG3, and an image sensing component (only the sensing surface SS is shown in the figure) ). The first reflection component P, the first lens group LG1 , the second lens group LG2 , the third lens group LG3 and the image sensing component are arranged in sequence along the optical path OA from the first side to the second side. During imaging, the light from a third side enters the first reflective component P from the first incident surface Sin along the vertical axis VA, is reflected by the first reflective surface Sref to change the traveling direction, and then passes through the first outgoing surface Sout, The first lens group LG1, the second lens group LG2, and the ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G02B13/00G02B23/08
Inventor施铭伟
OwnerSINTAI OPTICAL SHENZHEN CO LTD