- 专利标题: Compact wide field-of-view optical imaging method capable of electrically switching to a narrow field of view
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申请号: US15787744申请日: 2017-10-19
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公开(公告)号: US09986162B2公开(公告)日: 2018-05-29
- 发明人: Bruce M. Pixton , Jay N. Vizgaitis
- 申请人: The United States of America, as represented by the Secretary of the Army
- 申请人地址: US DC Washington
- 专利权人: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMY
- 当前专利权人: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE ARMY
- 当前专利权人地址: US DC Washington
- 代理商 Richard J. Kim
- 主分类号: H04N5/232
- IPC分类号: H04N5/232 ; H04N5/225 ; G02F1/133 ; G02F1/163 ; G02B27/00 ; G02B17/06
摘要:
An optical system that images a scene at two different fields of view, with switching between fields of view enabled by switchable mirrored surface is disclosed. A voltage change across the switchable mirror element generates a change in the reflection and transmission properties of the element, such that the element switches between a mirror state and a lens state. When nested in an annular reflective optic system of a given field of view, the switching element enables the opening of an additional optical path through the center of the reflective optics where a set of refractive optics are assembled into an imaging system for a second field of view. This dual field-of-view system changes field of view with no mechanical movement.