Linear optical scanner
First Claim
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1. A device for linear scanning, comprising:
- (a) a roof prism, wherein said roof prism includes a roof wherein said roof includes two mutually perpendicular reflecting surfaces intersecting in a line of intersection;
(b) a scanning mechanism which moves said roof prism in a direction substantially perpendicular to a plane of bilateral symmetry, wherein said line of intersection is included in said plane of bilateral symmetry, wherein an incident beam entering said roof prism and an exit beam exiting said roof prism are angularly separated by a substantial angle.
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Abstract
A device for linear scanning includes a roof prism. The roof prism includes a roof of two mutually perpendicular reflecting surfaces intersecting in a line of intersection. A scanning mechanism moves the roof prism in a direction perpendicular to a plane of bilateral symmetry. The line of intersection is included in the plane of bilateral symmetry; and an incident beam entering the prism and an exit beam exiting the prism are angularly separated by a substantial angle. Preferably, the scanning mechanism generates periodic motion or rotational motion of the roof prism with a radius of motion greater than a dimension of the roof prism.
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15 Claims
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1. A device for linear scanning, comprising:
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(a) a roof prism, wherein said roof prism includes a roof wherein said roof includes two mutually perpendicular reflecting surfaces intersecting in a line of intersection; (b) a scanning mechanism which moves said roof prism in a direction substantially perpendicular to a plane of bilateral symmetry, wherein said line of intersection is included in said plane of bilateral symmetry, wherein an incident beam entering said roof prism and an exit beam exiting said roof prism are angularly separated by a substantial angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification