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US 4,686,612 AGranted
Lamp reflector assembly
AssigneeOptech Inc.
InventorsDavid A. Pringle, Helen Gourley
Life of this patent
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AssigneeOptech Inc.
InventorsDavid A. Pringle, Helen Gourley
Estimating the term…
A reflector assembly for projecting a beam of light along an optical axis, the assembly including an enclosure having an aperture for projecting the beam of light and a source of light mounted within the enclosure. A reflecting mirror is disposed within the enclosure and arranged to move axially with respect to the optical axis of the beam of light between positions adjacent the aperture and remote from the aperture. A plurality of reflector segments are disposed between the movable reflector and the aperture in the enclosure, the segments each being defined as a portion of a cone or cylinder and with gaps therebetween arranged so as to permit the passage of air between the segments.
A reflector assembly for projecting a beam of light along an optical axis, said assembly comprising:
A reflecting mirror for reflecting a beam of light emitted from a light source along an optical axis, said mirror comprising at least two spherical sections for reflecting the light generally in the same direction along said optical axis, each said mirror being arranged to produce an image of the light source adjacent to but not coincident with the light source.
A reflecting mirror for reflecting a beam of light emitted from a light source along an optical axis, said mirror comprising at least two concave sections which confront each other and are disposed on the same side of said light source, each section being arranged to produce an image of the light source which is adjacent to but not coincident with the light source.
Dependencies are inferred from the claim text.