一款小型化可见光两档7.5×变焦系统的设计

Yue Chen; Hongbo Xie; Tong Yang; Junxu Pan; Lei Yang

doi:10.5768/JAO202142.0101005

一款小型化可见光两档7.5^×变焦系统的设计

Translated title of the contribution: Design of miniaturized two-steps 7.5^× zoom system in visible band

Yue Chen, Hongbo Xie, Tong Yang, Junxu Pan, Lei Yang^*

^*Corresponding author for this work

Tianjin University

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Many applications expect to search for targets with a large field of view (FOV), and identify the targets in a relative small FOV. A miniaturized two-step 7.5^× zoom system was proposed and designed, which worked in the visible band of 486 nm~656 nm with a wide-angle FOV of ±15°, telephoto FOV of ±2°, F-number in both FOV of 2.8, and overall length of 60 mm. The system consisted of glass lenses and plastic-injection lenses, which contained one front fixed group and one movable group. The conversion of wide-angle search function and long-focus gaze function was completed by switching the movable group between two zoom positions, which had the advantages of miniaturization, lightweight and low cost.

Translated title of the contribution	Design of miniaturized two-steps 7.5^× zoom system in visible band
Original language	Chinese (Traditional)
Pages (from-to)	30-35
Number of pages	6
Journal	Journal of Applied Optics
Volume	42
Issue number	1
DOIs	https://doi.org/10.5768/JAO202142.0101005
Publication status	Published - Jan 2021
Externally published	Yes

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abstract = "Many applications expect to search for targets with a large field of view (FOV), and identify the targets in a relative small FOV. A miniaturized two-step 7.5× zoom system was proposed and designed, which worked in the visible band of 486 nm~656 nm with a wide-angle FOV of ±15°, telephoto FOV of ±2°, F-number in both FOV of 2.8, and overall length of 60 mm. The system consisted of glass lenses and plastic-injection lenses, which contained one front fixed group and one movable group. The conversion of wide-angle search function and long-focus gaze function was completed by switching the movable group between two zoom positions, which had the advantages of miniaturization, lightweight and low cost.",

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author = "Yue Chen and Hongbo Xie and Tong Yang and Junxu Pan and Lei Yang",

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AU - Yang, Tong

AU - Pan, Junxu

AU - Yang, Lei

PY - 2021/1

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AB - Many applications expect to search for targets with a large field of view (FOV), and identify the targets in a relative small FOV. A miniaturized two-step 7.5× zoom system was proposed and designed, which worked in the visible band of 486 nm~656 nm with a wide-angle FOV of ±15°, telephoto FOV of ±2°, F-number in both FOV of 2.8, and overall length of 60 mm. The system consisted of glass lenses and plastic-injection lenses, which contained one front fixed group and one movable group. The conversion of wide-angle search function and long-focus gaze function was completed by switching the movable group between two zoom positions, which had the advantages of miniaturization, lightweight and low cost.

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一款小型化可见光两档7.5^×变焦系统的设计

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