Lamp
AssigneeStanley Electric Co., Ltd.
InventorsNao NAKANO, Hiroyuki CHIKAMA
Life of this patent
Estimating the term…
Abstract
A lamp can includes: a first reflective surface which can be provided on a surface of a circular shaped member, a radius of a top of the annular member can be longer than a radius of a bottom of the annular member; a second reflective surface which can be arranged inside of the first reflective surface and can have a conical shape, a vertex of the second reflective surface can be directed to a top side of the first reflective surface; and a plurality of light emitters which can be annularly arranged on the first reflective surface around the second reflective surface at a predetermined interval so as to be projected on the second reflective surface.
Claims20
A lamp comprising:
- a first reflective surface located on a surface of an annular shaped member, a radius of a top of the annular shaped member being longer than a radius of a bottom of the annular shaped member;
- a second reflective surface located inside of the first reflective surface and having a conical shape, a vertex of the second reflective surface being directed to the top of the first reflective surface;
- and
- a plurality of light emitters annularly arranged on the first reflective surface around the second reflective surface at a predetermined interval and arranged to project light on the second reflective surface.
A lamp having an optical axis, comprising:
- a first annular reflector having an outer perimeter, a front surface extending at an angle relative to the optical axis and a back surface opposite to the front surface;
- a second reflector located within the outer perimeter of the first annular reflector and having a convex surface facing the first annular reflector, the second reflector including a vertex adjacent to the optical axis and the second reflector extending between the optical axis and the front surface of the first annular reflector;
- and
- a first plurality of semiconductor light emitters adjacent to at least one of the front surface and the back surface of the first annular reflector, spaced annularly about the optical axis, and configured to project light onto the convex surface of the second reflector.
Dependencies are inferred from the claim text.