LIGHT ANGLE SELECTING LIGHT DETECTOR DEVICE
First Claim
1. A light angle selecting light detector device comprisinga selector unit anda detector unit, arranged to receive light selected by said selector unit, wherein said selector unit comprises a non-transparent body, having a first surface and a second surface said first and second surfaces being substantially parallel to each other and vertically separated by a distance, said device comprising at least one light path defined by a cavity spanning from a first light passing area having a first size arranged at said first surface to a second light passing area with a second size arranged at said second surface, light passing area and said second light passing area being arranged with a lateral displacement wherein said light path allows light having an incident angle between a maximum angle and a minimum angle, determined by said first and second size, said lateral displacement, and said distance, pass through said selector unit.
3 Assignments
0 Petitions
Accused Products
Abstract
This invention relates to a light angle selecting light detector device comprising a detector unit which is arranged to receive light selected by a selector unit. The device comprising at least one set of light passing areas. Each set of light passing areas consists of a first light passing area having a first size, which first light passing area is located on a first surface, and a second light passing area having a second size, which second light passing area is located on a second surface. The first light passing area and the second light passing area are arranged with a lateral displacement and form a light path from the first surface to the second surface for light having an incident angle between a maximum angle and a minimum angle.
15 Citations
16 Claims
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1. A light angle selecting light detector device comprising
a selector unit and a detector unit, arranged to receive light selected by said selector unit, wherein said selector unit comprises a non-transparent body, having a first surface and a second surface said first and second surfaces being substantially parallel to each other and vertically separated by a distance, said device comprising at least one light path defined by a cavity spanning from a first light passing area having a first size arranged at said first surface to a second light passing area with a second size arranged at said second surface, light passing area and said second light passing area being arranged with a lateral displacement wherein said light path allows light having an incident angle between a maximum angle and a minimum angle, determined by said first and second size, said lateral displacement, and said distance, pass through said selector unit.
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12. A method for manufacturing a light angle selecting light detector comprising the steps of:
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providing a detector unit; providing a selector unit in a non-transparent material, said selector unit having a first surface and a second surface arranged in parallel and having a distance between each other; arranging in said selector unit at least one light path formed as a cavity spanning from a first light passing area having a first size arranged at said first surface to a second light passing area with a second size arranged at said second surface, wherein said first light passing area and said second light passing area are arranged with a lateral displacement; and assembling said detector unit so as to receive light selected by said selector unit.
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14. (canceled)
Specification