Optical element and a light detection device and an object sensing system
First Claim
Patent Images
1. An optical element for condensing light comprising:
- a first cylindrical face at one side;
a second cylindrical face at the one side; and
a third cylindrical face at an other side,wherein a plane including an axis of the first cylindrical face and an axis of the third cylindrical face intersects with a plane including an axis of the second cylindrical face and the axis of the third cylindrical face,wherein at least the axis of the third cylindrical face extends parallel to a first direction,wherein the first cylindrical face is a first surface that extends from a first end to a second end over a first distance along the first direction,wherein the second cylindrical face is a second surface that extends from a first end to a second end over a second distance along the first direction, andwherein the second end of the first cylindrical face is adjacent to the first end of the second cylindrical face.
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Abstract
An optical element for condensing light is provided, wherein the optical element has a first cylindrical face and a second cylindrical face at one side and a third cylindrical face at an other side and a plane including an axis of the first cylindrical face and an axis of the third cylindrical face intersects with a plane including an axis of the second cylindrical face and the axis of the third cylindrical face. A light detection device for detecting light is provided, wherein the light detection device includes the optical element as described above and an element for detecting light condensed by the optical element.
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Citations
19 Claims
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1. An optical element for condensing light comprising:
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a first cylindrical face at one side; a second cylindrical face at the one side; and a third cylindrical face at an other side, wherein a plane including an axis of the first cylindrical face and an axis of the third cylindrical face intersects with a plane including an axis of the second cylindrical face and the axis of the third cylindrical face, wherein at least the axis of the third cylindrical face extends parallel to a first direction, wherein the first cylindrical face is a first surface that extends from a first end to a second end over a first distance along the first direction, wherein the second cylindrical face is a second surface that extends from a first end to a second end over a second distance along the first direction, and wherein the second end of the first cylindrical face is adjacent to the first end of the second cylindrical face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A light detection device for detecting light comprising:
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an optical element including a first cylindrical face and a second cylindrical face at a first side, and a third cylindrical face at a second side; a detection element that detects light condensed by the optical element, wherein a plane including an axis of the first cylindrical face and an axis of the third cylindrical face intersects with a plane including an axis of the second cylindrical face and the axis of the third cylindrical face, and wherein the detection element includes plural elements for receiving light condensed by the optical element in a direction orthogonal to a direction of at least one of the axis of the first cylindrical face, the axis of the second cylindrical face, and the axis of the third cylindrical face.
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Specification