PORTABLE LIGHT AND OPTICAL DIFFUSER THEREFOR

摘要

An optical diffuser for a light may comprise an optical body having a substantially flat base at one end thereof and a complex lens structure at the opposing end thereof. The complex lens may have a plurality of curved optical surfaces and may produce a beam of light having a non-uniform light intensity. The optical diffuser may be attached to a light by a holder, and the holder may be movable on the light to place the optical diffuser in front of alight source.

主权项

1. An optical diffuser and portable light comprising:
a housing having a cavity for a source of electrical power; at least one light source emitting light from a face of said housing; at least one control switch for selectively energizing the at least one light source; an optical diffuser movable over the face of said housing from which the at least one light source emits light, said optical diffuser being movable to be placed in a first position in front of the at least one light source for passing the light emitted thereby and to be placed in a second position not in front of the at least one light source; said optical diffuser having an at least partially cylindrical optically clear body having a substantially flat base at an end proximate the at least one light source and having a complex lens structure at an end distal the at least one light source; the complex lens structure including a central conical recess and at least one raised annular surface having frustro-conical sloping sides.