Miniaturized aspheric transmissive wide temperature optical antenna

By using an aspherical lens combination and a spacer design, the problems of difficult assembly and long length of optical antennas have been solved, achieving miniaturization and efficient installation, and meeting the requirements of wide-temperature operation and multispectral imaging.

CN121978822BActive Publication Date: 2026-06-26SHANGGUANG COMM TECH (SHANGHAI) CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGGUANG COMM TECH (SHANGHAI) CO LTD
Filing Date
2026-04-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The optical antennas of existing inter-satellite laser communication terminals are difficult to assemble and adjust due to the use of folding mirrors, and the optical antennas are also long, making it difficult to miniaturize them.

Method used

An aspherical lens combination is used, including an aspherical single lens, an aspherical positive lens, a first spherical negative lens, and a second spherical negative lens. Through bonding and spacer design, a miniaturized optical antenna is constructed to avoid optical axis reversal, ensure that the components are coaxial, and achieve wide-temperature operation.

Benefits of technology

Miniaturization of the optical antenna has been achieved, improving installation efficiency, reducing assembly complexity, ensuring optical performance over a wide temperature range, and meeting the requirements of multispectral imaging.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121978822B_ABST
    Figure CN121978822B_ABST
Patent Text Reader

Abstract

The application relates to the technical field of optical communication, and discloses a miniaturized aspheric transmission type wide-temperature optical antenna, wherein the optical antenna comprises a lens barrel, an aspheric single lens, a first spacer ring, an aspheric positive lens, a first spherical negative lens, a second spacer ring and a second spherical negative lens are sequentially arranged in the lens barrel of the optical antenna; the aspheric positive lens and the first spherical negative lens are cemented to form a cemented lens group; the first spacer ring is used for fixing the distance between the aspheric single lens and the cemented lens group; the second spacer ring is used for dynamically adjusting the distance between an objective lens and an ocular lens; the objective lens is composed of the aspheric single lens, the first spacer ring and the cemented lens group; and the ocular lens is the second spherical negative lens. The beneficial effect is that the length of the optical antenna is shortened, the assembly and adjustment difficulty is reduced, and the optical antenna is miniaturized.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Variable-focus optical receiving antenna used for mobile visible light communication

    CN105093508A