OPTIC WITH EXTRUDED CONIC PROFILE
First Claim
Patent Images
1. A transmission optic comprising:
- a transparent sheet with opposing front and back faces and an end face adjacent the front and back faces, a separation between the back face and a nearest point on the front face varying as a conic function of distance along the front face from that point to the end face.
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Accused Products
Abstract
A transmission optic having a transparent sheet with opposing front and back faces and an end face adjacent the front and back faces. The separation between the back face and a nearest point on the front face varies as a conic function of distance along the front face from that point to the end face.
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Citations
20 Claims
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1. A transmission optic comprising:
a transparent sheet with opposing front and back faces and an end face adjacent the front and back faces, a separation between the back face and a nearest point on the front face varying as a conic function of distance along the front face from that point to the end face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. A periscope comprising:
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a transmission optic comprising a transparent sheet with opposing front and back faces and an end face adjacent the front and back faces, a separation between the back face and a nearest point on the front face varying as a conic function of distance along the front face from that point to the end face; and a camera configured to receive an image from the end face of the transmission optic, the image refracting through the end face within a range of incidence angles and entering the front face over a corresponding, continuous range of distances from the end face, the range of distances spanning at least half the length of the sheet. - View Dependent Claims (17)
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18. A method for making a transmission optic comprising a transparent sheet with opposing front and back faces and an end face adjacent the front and back faces, the method comprising:
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computing a desired separation between the back face and a nearest point on the front face as a conic function of distance along the front face from that point to the end face; machining at least one mold surface to define a void conforming to the conic function; and filling the void with a transparent plastic material. - View Dependent Claims (19, 20)
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Specification