Apparatus for selectively viewing either of two scenes of interest
First Claim
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1. An apparatus for detecting radiation received from either a first or a second scene of interest, said apparatus comprising:
- A. polygonal scanning spin mirror means coupled to receive said radiation;
B. means for detecting said radiation received by said mirror means; and
C. shutter means coupled to block said radiation from either said first or said second scene of interest from being received by said detection means.
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Abstract
Either of two scenes of interest may be detected by use of a scanning sensor having a rotatable polygonal scanning mirror coupled to receive incident radiation from such scenes of interest. Apparatus is included for directing such incident radiation onto a detection device. A movable shutter is coupled to block receipt by the mirror of radiation from the first scene of interest when the second scene of interest is viewed, and vice versa.
110 Citations
13 Claims
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1. An apparatus for detecting radiation received from either a first or a second scene of interest, said apparatus comprising:
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A. polygonal scanning spin mirror means coupled to receive said radiation; B. means for detecting said radiation received by said mirror means; and C. shutter means coupled to block said radiation from either said first or said second scene of interest from being received by said detection means. - View Dependent Claims (2, 3, 4, 5)
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6. Scanning sensor apparatus for sensing incident radiation received from either a first scene of interest or a second scene of interest, said first scene of interest different in direction from said second scene of interest, said apparatus comprising:
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A. split field scanning means having (i) polygonal scanning mirror means coupled for rotation about a first axis, said scanning mirror means coupled to split said incident radiation from said first desired scene of interest into at least two beams; (ii) means, coupled to receive said at least two beams from said polygonal scanning mirror means, for reflecting said at least two beams, (iii) means, coupled to receive said at least two beams from said means for reflecting for recombining said at least two beams along a substantially common axis, and (iv) means, coupled to receive said at least two beams from said means for recombining, for focussing said at least two beams onto a desired point; B. first movable mirror means coupled with said scanning mirror means such that said incident radiation from said second scene of interest may be reflected onto said scanning mirror means and through said split field scanning means to said desired point; C. means for blocking said incident radiation from either said first scene of interest or said second scene of interest such that only said incident radiation from the said scene of interest not so blocked enters said split field scanning means; and D. detection means positioned at said desired point for measuring the incident radiation received by said split field scanning means from either said first or said second scene of interest. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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Specification