PANORAMIC IMAGING LENS
First Claim
1. A panoramic imaging lens comprising an annular light incident surface formed in a rotation symmetrical form around a light axis in a substantial convex lens form bulging to enable incident of lateral light;
- a first reflective surface formed in an annular concave mirror form bulging outwardly that substantially opposes the light incident surface to reflect light inside the lens;
a second reflective surface provided at a central part inside the annular light incident surface to reflect the reflected light from the first reflective surface toward an inner part of the annular first reflective surface; and
a light outgoing surface positioned at a central part inside the annular first reflective surface and opposing the second reflective surface to transmit the light from the second reflective surface, wherein;
a non-reflective part exerting no regular reflection of light is provided on a light path toward the light incident surface amongst light paths of light proceeding to agree with a light path of imaging light incident on and refracted at the light incident surface and proceeding inside the lens, which are light paths of light partly and inwardly reflected by the light incident surface from the interior of the lens toward the interior of the lens.
2 Assignments
0 Petitions
Accused Products
Abstract
It has an annular light incident surface formed in a substantial convex lens form; a first reflective surface formed in an annular concave mirror form to reflect light inside the lens; a second reflective surface provided at a central part inside the annular light incident surface to reflect the reflected light from the first reflective surface toward an inner part of the annular first reflective surface; and a light outgoing surface positioned at a central part inside the annular first reflective surface and opposing the second reflective surface to transmit light. A non-reflective part exerting no regular reflection of light is provided on a light path toward the light incident surface amongst light paths of light proceeding to agree with a light path of imaging light incident on and refracted at the light incident surface and proceeding inside the lens, which are light paths of light partly and inwardly reflected by the light incident surface 22 from the interior of the lens toward the interior of the lens.
15 Citations
6 Claims
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1. A panoramic imaging lens comprising an annular light incident surface formed in a rotation symmetrical form around a light axis in a substantial convex lens form bulging to enable incident of lateral light;
- a first reflective surface formed in an annular concave mirror form bulging outwardly that substantially opposes the light incident surface to reflect light inside the lens;
a second reflective surface provided at a central part inside the annular light incident surface to reflect the reflected light from the first reflective surface toward an inner part of the annular first reflective surface; and
a light outgoing surface positioned at a central part inside the annular first reflective surface and opposing the second reflective surface to transmit the light from the second reflective surface, wherein;
a non-reflective part exerting no regular reflection of light is provided on a light path toward the light incident surface amongst light paths of light proceeding to agree with a light path of imaging light incident on and refracted at the light incident surface and proceeding inside the lens, which are light paths of light partly and inwardly reflected by the light incident surface from the interior of the lens toward the interior of the lens. - View Dependent Claims (2, 3, 4, 5, 6)
- a first reflective surface formed in an annular concave mirror form bulging outwardly that substantially opposes the light incident surface to reflect light inside the lens;
Specification