Hot imaging lens of non - refrigeration dual -view field

The utility model discloses a hot imaging lens of non - refrigeration dual -view field, focus reach more than the 250mm, adopt to switch lens composition formula realization visual field switching. The camera lens includes four group's lens altogether, and fixed group, switching become doubly g...

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Bibliographic Details
Main Authors ZHANG QIBU, XIA LIMIN, LI SHIBO, HAN LIN
Format Patent
LanguageChinese
English
Published 29.03.2017
Subjects
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
RADIATION PYROMETRY
TESTING
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Summary:The utility model discloses a hot imaging lens of non - refrigeration dual -view field, focus reach more than the 250mm, adopt to switch lens composition formula realization visual field switching. The camera lens includes four group's lens altogether, and fixed group, switching become doubly group, after -fixing group and focus group before being respectively. The preceding fixed rigid of group. Switch to become doubly the group and cut into and comes out to realize zooming of camera lens, switch and become that the camera lens was in short burnt state when doubly the group cut into, switch and become that the camera lens was in the burnt state of length when doubly the group surely went out. The rigid of after -fixing group. Focus group realizes the focus to far and near target along optical axis axial displacement. The utility model discloses only realized just with five germanium material lens that switching formula dual -view field zooms, the while the system image quality is good, and visual field switc
Bibliography:Application Number: CN201621022077U