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Optical design of a large aperture and large aperture ultra-telephoto low-light imaging lens

An optical design and large-aperture technology, applied in the lens field, to achieve infrared confocal, clear and sharp effect, and improve picture quality

Active Publication Date: 2021-08-03
中科天极(新疆)空天信息有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, there is a lack of high-resolution low-light night vision lenses with ultra-telephoto, large aperture, large aperture, and one-inch target surface on the market.

Method used

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  • Optical design of a large aperture and large aperture ultra-telephoto low-light imaging lens
  • Optical design of a large aperture and large aperture ultra-telephoto low-light imaging lens
  • Optical design of a large aperture and large aperture ultra-telephoto low-light imaging lens

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Embodiment Construction

[0031] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

[0032] In the present invention, terms such as "installation", "connection", "connection", "fixation" and "socketing" should be understood in a broad sense unless otherwise clearly specified and limited, for e...

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Abstract

The invention discloses an optical design of a large-diameter, large-aperture, ultra-telephoto low-light imaging lens, which includes a main lens barrel, and a first lens, a second lens, a third lens, and a first lens are sequentially arranged in the main lens barrel along the light incident direction. There are four mirrors, fifth mirrors, sixth mirrors and seventh mirrors, and the outer diameters of the lenses decrease successively. The invention obtains the parameters of the large-diameter ultra-telephoto low-light imaging lens through complex optical calculation and design, the focal length of the lens reaches 300mm, and can be adapted to a 1-inch photosensitive chip. Practice has proved that the effect of the low-light night vision imaging lens produced by this optical design is clear and sharp, and at the same time, the light transmittance of the lens is greatly improved, so that the imaging device can shoot clear and bright images in an extremely weak environment, which greatly improves the night vision. Picture quality for dynamic and static monitoring.

Description

technical field [0001] The invention relates to the field of lens technology, in particular to the optical design of a large-aperture large-aperture ultra-telephoto low-light imaging lens. Background technique [0002] At present, there is a lack of high-resolution low-light night vision lenses with ultra-telephoto, large aperture, large aperture, and a one-inch target surface on the market. In order to make up for this gap in the market, through the forward-looking optical design, the low-light night vision lens with the above advantages is realized. Contents of the invention [0003] Aiming at the deficiencies and defects of the existing technology, an optical design of a large aperture and large aperture ultra-telephoto low-light imaging lens is provided. Through complex optical calculation and design, the parameters of the large-aperture ultra-telephoto low-light imaging lens are obtained. The focal length of the lens reaches 300mm, which can be adapted to With 1 inch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/14
CPCG02B13/005G02B13/008G02B13/14
Inventor 邓羿
Owner 中科天极(新疆)空天信息有限公司
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