Magnifying mirror having focused annular illuminator
First Claim
1. A mirror device comprising;
- a. a mirror plate having a reflective surface,b. a frame having a front portion which at least partially encircles the periphery of said mirror plate, said frame comprising a ring-shaped body for conducting light from an entrance surface to an exit surface thereof, said body being made of a material which is at least partially light-transmissive, said body having a front ring-shaped light exit surface, a rear light entrance surface, and an intermediate portion disposed between said front and rear surfaces, said intermediate portion having an arcuately curved, convex outer surface which is inclined to light rays entering said rear light entrance surface at an angle greater than the critical angle for total internal reflection of said material, andc. a light source effective in introducing light rays through said rear light entrance surface into said intermediate portion of said body, said rays impinging on said curved outer surface at an angle greater than said critical angle, whereby said rays are conducted from said rear light entrance surface to said front light exit surface by total internal reflection.
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Accused Products
Abstract
A mirror device includes a frame comprising a circular ring-shaped light transmissive body which supports a concave magnifying mirror plate. The body has a front beveled annular light exit surface which angles inwardly and rearwardly from the outer side wall of the body to the inner side wall of the body, which has an annular shoulder flange which supports the peripheral edge of the mirror plate. The outer and inner side walls of the body curve longitudinally rearwardly and inwardly, terminating in an annular-shaped rear leg portion located behind the mirror plate. The rear leg portion has an inner, longitudinally disposed, cylindrical light entrance surface within which is located a ring-shaped lamp. Light rays entering the cylindrical light entrance surface are piped forward by total internal reflection within the support body to exit from the beveled front annular light exit surface, which is beveled at an angle which causes an annular cone of light to be focused near the focal point of the mirror plate, thereby effectively illuminating a face or other object placed close to the mirror.
46 Citations
20 Claims
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1. A mirror device comprising;
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a. a mirror plate having a reflective surface, b. a frame having a front portion which at least partially encircles the periphery of said mirror plate, said frame comprising a ring-shaped body for conducting light from an entrance surface to an exit surface thereof, said body being made of a material which is at least partially light-transmissive, said body having a front ring-shaped light exit surface, a rear light entrance surface, and an intermediate portion disposed between said front and rear surfaces, said intermediate portion having an arcuately curved, convex outer surface which is inclined to light rays entering said rear light entrance surface at an angle greater than the critical angle for total internal reflection of said material, and c. a light source effective in introducing light rays through said rear light entrance surface into said intermediate portion of said body, said rays impinging on said curved outer surface at an angle greater than said critical angle, whereby said rays are conducted from said rear light entrance surface to said front light exit surface by total internal reflection. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mirror device comprising;
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a. a mirror plate having a reflective surface and a circular peripheral edge, b. a frame for said mirror plate comprising a ring-shaped support body for conducting light from a light source to an exit surface of said support body, said support body being made of a material which is at least partially light transmissive and which at least partially encircles said peripheral edge of said mirror plate, said support body having a front annular light exit surface which circumscribes said mirror plate, a ring-shaped intermediate longitudinal portion which protrudes rearwardly from said front annular light exit surface, and a rear ring-shaped leg portion, said leg portion having a ring-shaped light entrance surface, said intermediate longitudinal portion having an arcuately curved, convex outer surface which is inclined to light rays entering said ring-shaped light entrance surface of said ring-shaped rear leg portion at an angle greater than critical angle for total internal reflection of said material, and c. a ring-shaped light source adjacent to said light entrance surface, said light source being effective in introducing light rays through said rear light entrance surface into said intermediate portion of said body, said rays impinging on said curved outer surface at an angle greater than said critical angle, whereby said rays are conducted from said rear light entrance surface to said front light exit surface by total internal reflection. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A magnifying mirror device comprising;
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a. a circular reflective mirror plate having a concave front surface, b. a frame for said mirror plate comprising a circular ring-shaped support body for conducting light from a light source into a region in front of said mirror plate, said support body being made of an at least partially light transmissive material and having a shape approximating that of a shallow circular pan with thick, outwardly bowed inner and outer side walls and a large circular, central coaxial portion of the base of the pan cut away to leave a radially inwardly protruding annular ring-shaped leg section having on the inner circumferential edge thereof a longitudinally disposed, cylindrically-shaped light entrance surface, the support body having a front annular light exit surface disposed transversely from the outer longitudinal side wall to the inner longitudinal side wall of said body, said outwardly bowed outer side wall of said support body being inclined to light rays entering said cylindrically-shaped light entrance surface at an angle greater than the critical angle for total internal reflection of light rays in said material, and c. a ring-shaped lamp having a smaller outer diameter than the inner diameter of said cylindrically-shaped light entrance surface, said lamp being located coaxially and at least partially longitudinally within said cylindrically-shaped light entrance surface said rays impinging on said outwardly bowed outer side wall of said support body at an angle greater than said critical angle, whereby said rays are conducted through said support body from said entrance surface to said exit surface thereof by total internal reflections. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification