Axis symmetric specular reflector
AssigneeHoneywell International Inc.
InventorJoel Kwasny
Life of this patent
Estimating the term…
Abstract
A strobe unit includes a light source and a reflector. The reflector incorporates a plurality of reflecting regions arranged symmetrically about the source. Each of the reflecting regions incorporates a partial parabolic section which extends arcuately in a plane perpendicular to an axis of the light source on the order of forty-five degrees. Such arcuately extending surfaces are displaced from one another on the order of forty-five degrees.
Claims49
A strobe unit comprising:
- a light source;
- a reflector having a central axis extending in a first direction and a plurality of reflecting regions arranged around the central axis, each reflecting region including at least one partial parabolic surface extending in an arc defined in a plane perpendicular to the central axis of the source, and where each adjacent pair of reflecting regions is separated by a peripheral recess with each recess transmitting light emitted directly from the source when viewed from the periphery.
A reflector comprising:
- a base reflector symmetrical about an axis of symmetry;
- a first plurality of reflector elements on the base symmetrically disposed about the axis of symmetry, each member of the plurality is rotated a selected angle relative to the axis before being revolved about an axis of rotation;
- and
- a second plurality of stacked partial parabolic surfaces, the surfaces extend axially relative to the axis of symmetry with each member of the second plurality displaced laterally, relative to the axis, with respect to at least one other member of the plurality.
A modular reflector comprising a plurality of substantially identical modular sections, the sections are arranged symmetrically about a common axis, each of the sections including;
- a first, proximal section defined by a parabolic surface with an axis of revolution rotated a first angle relative to the common axis;
- a second section stacked on the first section, the second section defined by a parabolic surface with an axis of revolution rotated a second angle relative to the common axis;
- a third section stacked in the second section, the third section defined by a parabolic surface with an axis of revolution rotated a third angle relative to the common axis;
- with all sections arcuately oriented relative to the common axis.
A method comprising:
- emitting light in a plurality of directions relative to an axis of illumination;
- reflecting a first part of the light off of a first partial parabolic reflector symmetrically configured relative to the axis with an axis of revolution oriented at a first angle relative to the axis;
- reflecting a second part of the light off of a second partial parabolic reflector oriented with an axis of revolution oriented at a second angle relative to the axis;
- reflecting a third part of the light off of a third partial parabolic reflector oriented with an axis of revolution oriented at a third angle relative to the axis.
A method comprising:
- defining a first parabola with a focal length relative to a first axis of revolution;
- revolving the first parabola, through a predetermined angle about the first axis of revolution thereby forming a first partial parabolic surface;
- truncating the first partial parabolic surface forming an end thereof;
- defining a second parabola with a focal length relative to a second axis of revolution coincident with the first axis of revolution;
- rotating the second, axis of revolution relative to the first axis;
- revolving the second parabola about the rotated second axis through a second predetermined angle thereby forming a second partial parabolic surface;
- stacking the second partial parabolic surface on the end of the first partial parabolic surface;
- and
- truncating the second partial parabolic surface forming a second end thereof, the end and the second end are spaced apart axially along the first axis of revolution by the second partial parabolic surface.
A device comprising:
- a base;
- an axis perpendicular to the base;
- a plurality of partial parabolic reflectors on the base, the reflectors extend only arcuately about the axis and are replicated in each quadrant.
Dependencies are inferred from the claim text.