Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1983-03-03
1985-04-02
Henry, Jon W.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
250236, 358206, G02B 2717, H04N 308
Patent
active
045084220
ABSTRACT:
A scanning system for optical scanning of a scene in at least one dimension has a multi-faceted reflective scanning rotor as the scanning element. In order to have a high scanning efficiency a so-called facet-tracing is provided such that the beam path is reflected by first and second areas of reflection on the rotor, both areas being disposed in a non-collimated beam path. An optical beam converging means is disposed in the beam path between the scene and the rotor for forming a primary image of the scene between the beam converging means and the rotor. A substantially spherical mirror is disposed in the beam path of the system between the first and the second areas of reflection. A radiation detector is disposed at the end of the beam path. A beam converging optical element, such as a positive lens or a substantially spherical mirror, is disposed in the beam path between the first substantially spherical mirror and the second area of reflection. Means are provided to form a real image of the radiation detector in the beam path at a position between the first substantially spherical mirror and a location so close to the beam converging optical element that the element serves as a field element for this location of the real image.
REFERENCES:
patent: 4215912 (1980-08-01), Minoura
patent: 4230394 (1980-10-01), Brueggemann et al.
W. L. Wolfe and G. L. Zissis, "The Infrared Handbook", Paragraph 9.4 (1978).
Henry Jon W.
Pharos AB
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