Rotating prism scanning device and method for scanning
First Claim
1. A scanning device comprisinga first frame supporting a first deflector for deflecting light, the first deflector having a first surface and a second surface, the first surface and the second surface forming a first deflector angle, the first frame being arranged for rotation around a first axis, the first axis forming a first surface angle with the first surface, anda second frame supporting a second deflector for deflecting light, the second deflector having a third surface and a fourth surface, the third surface and the fourth surface forming a second deflector angle, the second frame being arranged for rotation around a second axis, the second axis forming a frame angle with the first axis, forming a second surface angle with the second surface, and forming a third surface angle with the third surface,wherein the first frame being rotatably connected to a base for rotation around the first axis and the second frame being arranged for rotation around the first axis, the scanning device further comprisinga first drive coupled to the first frame for controlling the rotation of the first frame around the first axis, anda second drive coupled to the second frame for controlling the rotation of the second frame around the second axis, such that individual control of the rotation of the first frame around the first axis and the rotation of the second frame around the second axis is provided,the device being adapted for setting up an optical path, the optical path comprisinga first optical path part extending from the first surface and away from the first deflector, the first optical path part forming a first optical angle with the first surface,a second optical path part extending between the second surface and the third surface, the second optical path part forming a second optical angle with the second surface and forming a third optical angle with the third surface, respectively, anda third optical path part extending from the fourth surface and away from the second deflector, the third optical path part forming a fourth optical angle with the fourth surface, whereinthe first optical path part is substantially parallel with the first axis,the second optical path part is substantially parallel with the second axis,the first optical angle is substantially equal to the second optical angle, andthe fourth optical angle is substantially equal to the third optical angle.
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Accused Products
Abstract
The present invention relates to a scanning device and a method for scanning. The scanning device comprises a first frame (4) supporting a first deflector (6), and a second frame (8) supporting a second deflector (10). The first frame is arranged for rotation around a first axis (12), and the second frame is arranged for rotation around a second axis (14). The first frame is rotatably connected to a base (38) for rotation around the first axis and the second frame is arranged for rotation around the first axis. The method for scanning comprises rotating the first frame around the first axis according to a first selected value, and rotating the second frame around the second axis according to a second selected value.
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Citations
20 Claims
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1. A scanning device comprising
a first frame supporting a first deflector for deflecting light, the first deflector having a first surface and a second surface, the first surface and the second surface forming a first deflector angle, the first frame being arranged for rotation around a first axis, the first axis forming a first surface angle with the first surface, and a second frame supporting a second deflector for deflecting light, the second deflector having a third surface and a fourth surface, the third surface and the fourth surface forming a second deflector angle, the second frame being arranged for rotation around a second axis, the second axis forming a frame angle with the first axis, forming a second surface angle with the second surface, and forming a third surface angle with the third surface, wherein the first frame being rotatably connected to a base for rotation around the first axis and the second frame being arranged for rotation around the first axis, the scanning device further comprising a first drive coupled to the first frame for controlling the rotation of the first frame around the first axis, and a second drive coupled to the second frame for controlling the rotation of the second frame around the second axis, such that individual control of the rotation of the first frame around the first axis and the rotation of the second frame around the second axis is provided, the device being adapted for setting up an optical path, the optical path comprising a first optical path part extending from the first surface and away from the first deflector, the first optical path part forming a first optical angle with the first surface, a second optical path part extending between the second surface and the third surface, the second optical path part forming a second optical angle with the second surface and forming a third optical angle with the third surface, respectively, and a third optical path part extending from the fourth surface and away from the second deflector, the third optical path part forming a fourth optical angle with the fourth surface, wherein the first optical path part is substantially parallel with the first axis, the second optical path part is substantially parallel with the second axis, the first optical angle is substantially equal to the second optical angle, and the fourth optical angle is substantially equal to the third optical angle.
Specification
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- Resources
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Current AssigneeDanmarks Pã¦Dagogiske Universitet
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Original AssigneeDanmarks Pã¦Dagogiske Universitet
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InventorsMikkelsen, Torben Krogh, Nielsen, Morten, Sorensen, Jakob Mann
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Primary Examiner(s)Safaipour, Houshang
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Application NumberUS13/001,165Publication NumberTime in Patent Office1,502 DaysField of Search358/475, 358/474, 358/496, 358/498, 358/481US Class Current358/475CPC Class CodesG02B 26/0891 forming an optical wedgeG02B 7/1805 for prisms G02B7/181 takes ...Y02B 10/30 Wind power
