Optical alignment detection system
0 Assignments
0 Petitions
Accused Products
Abstract
An optical alignment detection system for detecting the alignment of a first object relative to a second object is provided. One or more light sources and one or more light detectors, either or both of which are secured relative to the second object, are used to detect the position of one or more light scattering elements on the first object.
79 Citations
49 Claims
-
1-20. -20. (canceled)
-
21. An optical alignment detection system for detecting the alignment of a first object relative to a second object, the optical alignment system comprising:
-
one or more light blocking regions and one or more non-light blocking regions, both fixed relative to the first object;
two or more light sources fixed relative to the second object, the two or more light sources adapted to provide light such that a light beam from at least one of the light sources intersects at least one of the one or more light blocking regions and a light beam from at least one other of the light sources intersects at least one of the one or more non-light blocking regions;
one or more detectors for detecting the light beams provided from the two or more light sources;
identifying block for identifying which of the two or more light sources provide a light beam that intersects the one or more light blocking regions and/or which of the two or more light sources provide a light beam that intersects the one or more non-light blocking regions; and
determining block for determining the alignment of the first object relative to the second object from the identified light source(s). - View Dependent Claims (22, 23, 24)
-
-
25. An optical alignment detection system for detecting the alignment of a first object relative to a second object, the optical alignment system comprising:
-
a light refracting element fixed relative to the first object;
a light source fixed relative to the second object, the light source adapted to provide a light beam that intersects at least part of the light refracting element to produce a refracted light profile; and
one or more detectors fixed relative to the second object for detecting the refracted light profile. - View Dependent Claims (26, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
-
-
27-30. -30. (canceled)
-
31. An optical system, comprising:
-
an array of two or more light sources positioned along an array axis, each for producing a light beam with a beam spot size;
beam forming element for increasing the beam spot size of each of the two or more light sources in a direction along the array axis;
beam collimating element for receiving the light from the beam forming element; and
one or more detectors for receiving the light from the beam collimating element. - View Dependent Claims (47, 48, 49)
-
-
32-36. -36. (canceled)
Specification