Gun sight infrared lens and lens module

The gun aiming infrared lens uses two meniscus lenses of germanium and chalcogenide glass with optimized design to address the cost and structural complexity of existing rifle-type lenses, achieving high-quality imaging at a lower cost and wider field of view.

CN119200175APending Publication Date: 2024-12-27安徽光智科技有限公司
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Patent Information

Application Number
CN202411578726.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2024-12-27

AI Technical Summary

Technical Problem

Existing rifle-type infrared lenses are costly due to the use of high-cost germanium materials and require multiple lenses, which complicates the structure and hinders the development of an economical infrared system with high image quality.

Method used

A gun aiming infrared lens comprising two meniscus lenses made of germanium and chalcogenide glass, with specific optical parameters and aspherical surfaces, and a binary surface, along with a stop on the image side of the first lens, to achieve a compact and high-quality imaging system.

Benefits of technology

The lens design achieves high imaging quality, a compact structure, and low cost, with improved edge image quality and wider field of view, suitable for low-light conditions, while maintaining stable performance.

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Abstract

The invention belongs to the technical field of infrared optics, and discloses a gun sight infrared lens and a lens module. The lens comprises a first lens and a second lens which are sequentially arranged from the object side to the image side. The first lens and the second lens are meniscus lenses of which the convex surfaces face the object side; the focal power of the first lens and the focal power of the second lens are both positive. The air gap between the first lens and the second lens is 42.27 mm. The two lenses are adopted, the structure of the lens is compact through reasonable distribution of focal power, various aberrations are corrected through reasonable arrangement of the lenses, the edge image quality is improved, and therefore the imaging quality is improved; the F number is 1, so that the lens can be clearly imaged under weak light, and the working performance is stable; the focal length can reach 50 mm, the visual field is wider, and aiming imaging is clearer under the condition of the same distance; the lens adopts a germanium lens and a chalcogenide glass lens, so that the cost is low while the imaging quality is ensured.
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Citation Information

Patent Citations

  • Lens and optical system

    CN116679416A

  • Long-wave uncooled infrared lens

    CN209606697U

  • Infrared lens

    JP2000075203A

  • Infrared lens

    JP2003295052A

  • Infrared imaging lens and imaging apparatus

    JP2011237669A