Wide angle view optical system
First Claim
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1. A camera optical system for filing a wide-angle view comprising:
- a reflective convex mirror means in which a wide angle view is reflected;
a first focusing lens means to focus the image from said curved mirror means;
a fiber optic bundle consisting of a plurality of fiber optic strands to conduit a coherent image, said fiber optic bundle having a front face toward said first focusing lens in the end face shape in cross-section taken perpendicular to the axis of the fiber strands of an annulus sector and a back face in the end face shape substantially of a rectangle; and
a second focusing lens means to focus the image from said optic bundle back face.
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Abstract
An optical system for cameras and projectors includes a reflective convex mirror for a wide-angle view, for example, a sector of one fourth of a sphere to obtain a view of 180°. The optical system further includes a front face reflecting mirror to change the optical path 90°, a first focusing lens, a fiber optic bundle and a second focusing lens. The fiber optic bundle has one face in the form of an annulus or sector of an annulus and the opposite face of rectangular shape so that an annular shaped image may be converted into a non-distorted image of rectangular form.
42 Citations
17 Claims
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1. A camera optical system for filing a wide-angle view comprising:
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a reflective convex mirror means in which a wide angle view is reflected; a first focusing lens means to focus the image from said curved mirror means; a fiber optic bundle consisting of a plurality of fiber optic strands to conduit a coherent image, said fiber optic bundle having a front face toward said first focusing lens in the end face shape in cross-section taken perpendicular to the axis of the fiber strands of an annulus sector and a back face in the end face shape substantially of a rectangle; and a second focusing lens means to focus the image from said optic bundle back face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A projection optical system for projecting a wide angle view from a substantially rectangular film image, comprising:
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(a) a first focusing lens means to focus the image from said film image; (b) a fiber optic bundle consisting of a plurality of fiber optic strands to conduit a coherent image, said fiber optic bundle having a back face toward said first focusing lens in the end face shape substantially of an oblong and a front face lens in the end face shape in cross-section taken perpendicular to the axii of the fiber strands of an annulus sector; and (c) a second focusing lens means to focus the image from said front face of said fiber optic bundle; (d) a reflective curved convex mirror means to receive the image from said second focusing lens and reflect the image; and (e) a curved screen upon which the image from said curved mirror is projected. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification