System and method of determining a position of a radiation scattering/reflecting element
4 Assignments
0 Petitions
Accused Products
Abstract
A method and system for determining the position of a radiation scattering/reflecting element, where the radiation emitter is provided at a surface of a radiation transmissive element an on which radiation is incident. This incident radiation is scattered/diffused/reflected by the scattering/reflecting element and guided by the transmissive element toward a detector able to determine the position of the element.
143 Citations
84 Claims
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1-42. -42. (canceled)
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43. A system for determining the position of a radiation reflecting/scattering element, the system comprising:
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a radiation transmissive element or plate having a first surface part adapted to be engaged by the reflecting/scattering member and a second surface part being opposite to the first surface part, the transmissive element being adapted to guide reflected/scattered light by total internal reflection to the detecting means. means for providing radiation into the transmissive element and onto the first surface part, means for detecting radiation provided by the radiation providing means and reflected/scattered by the reflecting/scattering element when engaging the first surface part at a position thereof and for outputting a signal relating to an angle of incidence of the radiation, the detecting means comprising at least one at least one-dimensional detector comprising a plurality of detecting elements each being adapted to detect radiation and to output a corresponding signal, the detecting means further comprising at least one aperture, pinhole, or lens adapted to modulate radiation incident on the detecting elements and means for determining, on the basis of angle signal, the position of engagement of the reflecting/scattering element on the first surface part. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A method for determining the position of a radiation reflecting/scattering element, the method comprising:
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providing radiation into a transmissive element or plate and onto a first surface part thereof, the radiation transmissive element also having a second surface part being opposite to the first surface part, providing engagement between the reflecting/scattering member and the first surface part of the radiation transmissive member, guiding the reflected/scattered light by total internal reflection in the radiation transmissive member to the detecting means, modulating radiation incident on the detecting means with at least one aperture, pinhole, or lens, detecting radiation, using an at least one-dimensional detector comprising a plurality of detecting elements each detecting radiation and outputting a corresponding signal, provided by the radiation providing means, reflected/scattered by the reflecting/scattering element engaging the first surface part at a position thereof, and being modulated by the at least one aperture, pinhole, or lens, and providing a signal relating to an angle of incidence of the radiation, and determining, on the basis of the angle signal, the position of engagement of the reflecting/scattering element on the first surface part. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80)
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81. A system for determining the position of a radiation emitting/reflecting/scattering element, the system comprising:
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a radiation transmissive element or plate having a first surface part and a second surface part being opposite to the first surface part, a first reflective element extending in a direction of the first surface part, and having one or more predetermined areas, the reflective element being adapted to, in each area, provide radiation transmission from the first surface toward the second surface part and, outside the area(s), reflect radiation travelling from the second surface part toward the first surface back toward the second surface part, a second reflective element extending in a direction of the first surface part and being adapted to reflect radiation travelling in the transmissive element from the first reflective element toward the second surface part back toward the first surface part and the first reflective element, a detecting means comprising at least one at least one-dimensional detector comprising a plurality of detecting elements each being adapted to detect radiation and to output a corresponding signal, the detecting means further comprising at least one aperture, pinhole, or lens adapted to modulate radiation incident on the detecting elements, the detecting means being adapted to;
detect radiation from the emitting/reflecting/scattering means, which radiation has entered the transmissive element, passed through an area of the first reflective element and has been reflected toward the detector by the first and/or second reflective element and output a signal relating to an angle of incidence of the radiation, and means for determining, on the basis of the angle signal, a position of the emitting/reflecting/scattering element in relation to the first surface part. - View Dependent Claims (82)
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83. A method of determining the position of a radiation emitting/reflecting/scattering element, the method comprising:
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providing a radiation transmissive element or plate having a first surface part and a second surface part being opposite to the first surface part, providing a first reflective element extending in a direction of the first surface part, and having a plurality of predetermined areas, providing a second reflective element extending in a direction of the first surface part, providing a detecting means comprising at least one at least one-dimensional detector comprising a plurality of detecting elements each being adapted to detect radiation and to output a corresponding signal, receiving radiation from the emitting/reflecting/scattering element into the transmissive element, through an area, and toward the second reflective element, the first and second reflective elements subsequently reflecting at least part of the received radiation toward the detecting means, modulating radiation incident on the detecting elements with at least one aperture, pinhole, or lens, detecting modulated radiation and outputting a signal relating to an angle of incidence of the radiation, and determining, on the basis of the angle signal, a position of the emitting/reflecting/scattering element in relation to the first surface part. - View Dependent Claims (84)
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Specification