17 December 1979 Optimum Rotation Axis For A Flapping Mirror In Thermal Imaging Scanners
Author Affiliations +
An oscillating mirror is frequently used as a scan mechanism in thermal imagers. The correct location of the rotation axis to minimise unwanted displacements of a beam whose direction is being changed has been determined using a ray-tracing technique well suited to many problems in optomechanical scanner design. Numerical analysis reveals that a ray may be rotated by at least 20° about a point 10 units in front of a plane mirror if the mean deflection angle at the mirror is 120° and the rotation axis of the mirror is located 16.7 units in front and 5.8 units on the incidence side of the mirror.
© (1979) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John Warner "Optimum Rotation Axis For A Flapping Mirror In Thermal Imaging Scanners", Proc. SPIE 0197, Modern Utilization of Infrared Technology V, (17 December 1979); doi: 10.1117/12.957987; https://doi.org/10.1117/12.957987


Infrared simulation of missile dome heating
Proceedings of SPIE (November 30 1991)
Single-Detector Infrared Scanners
Proceedings of SPIE (January 19 1976)
Statistical Scene Study Of Skylab Infrared Data
Proceedings of SPIE (December 16 1979)
New Cold Shields For Infrared Detectors
Proceedings of SPIE (October 02 1988)
A New Type Of Infrared Scanning System
Proceedings of SPIE (September 27 1987)

Back to Top