Large field of view space camera optical lens
CN119471969BActive Publication Date: 2026-06-12SHANGHAI AEROSPACE CONTROL TECH INST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AEROSPACE CONTROL TECH INST
- Filing Date
- 2024-11-13
- Publication Date
- 2026-06-12
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Figure CN119471969B_ABST
Abstract
The application provides a large-view-field space camera optical lens, and an optical system of the optical lens comprises, from an object side to an image side, a front lens group, an aperture and a rear lens group arranged in sequence; the front lens group comprises, from the object side to the image side, a first negative meniscus lens, a first double-concave lens, a first positive meniscus lens, a first double-convex lens and a second positive meniscus lens arranged in sequence; and the rear lens group comprises, from the object side to the image side, a second double-convex lens, a second negative meniscus lens, a third negative meniscus lens, a third double-convex lens, a fourth negative meniscus lens, a fourth double-convex lens and a first filter arranged in sequence. The application reduces the number of lenses used in the front lens group, reduces the difficulty of correcting aberration of the rear lens group, and has the performances of circular light spot, large view field, low chromatic aberration, high resolution, small deviation of light spot shape in each view field, small change of image quality under each temperature condition and the like through the cooperation of the aspheric lens of the first negative meniscus lens, the plurality of positive and negative meniscus lenses and the plurality of concave and convex lenses.
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