Patent ID: 7914169
Filing Date: 2011-03-29
Classification: F21L,F21V

Abstract:
1. A light-emitting product, comprising a first housing including a light source for emitting light fixed in position within the first housing, a reflector fixed in position within the first housing, and a lens system that is adjustable in position relative to the light source and the reflector, and a second housing that can be attached to the first housing and including a power source for the light source, wherein when the first housing and the second housing are attached the first housing and the second housing can be moved relative to each other to adjust the position of the lens system relative to the position of the light source to focus the light from the light source, wherein the first housing includes a first threaded surface and the second housing includes a second threaded surface that can engage with the first threaded surface, the first and second threaded surfaces allowing the first housing to be attached to the second housing and also allowing the first housing and the second housing to be moved relative to each other after the attachment to adjust the position of the lens system relative to the position of the light source to focus the light from the light source, wherein the first threaded surface extends along an axis and the lens system includes an element that overlaps with part of the first threaded surface along the axis, and wherein when the first housing is attached to the second housing and the first housing is moved relative to the second housing, the element contacts the second housing to provide the adjustment of the position of the lens system to focus the light from the light source.