Technologies for enhancing contrast of an illumination marker
AssigneeIntel Corporation
InventorNizan Horesh
Life of this patent
Estimating the term…
Abstract
An illumination marker includes a light source and an optical attenuation cover coupled to the light source. The optical attenuation cover is configured to attenuate an intensity of light that passes through the optical attenuation cover based on a length of an optical path of the light through the optical attenuation cover. In some embodiments, the optical attenuation cover may be embodied as a physical barrier cover and include light-blocking structures. Additionally, in some embodiments, the illumination maker may include a diffusive or retro-reflective core rather than the light source.
Claims23
An illumination marker, comprising:
- a cover to at least partially surround and be in contact with an outer surface of a shell of a first light source, the cover having a first thickness, the shell having a second thickness, the first thickness greater than the second thickness;
- and
- a first optical path defined in the cover, a first light from the first light source to follow the first optical path through the cover and toward a first location external to the cover, the cover to block at least a portion of second light from a second light source from following a second optical path through the cover and toward the first location, the second light source to be external to the cover on an opposite side of the cover relative to the first location.
An illumination marker, comprising
- means for blocking light;
- and
- means for generating light, the light generating means to generate first light that is to pass through the light blocking means toward a first location, the light blocking means to reduce an intensity of the first light less than an intensity of a second light, the second light to pass through the light blocking means toward the first location, the second light to emanate from an external light source at a second location, the light blocking means to be between the first location and the second location, the light blocking means to extend 360 degrees around an external shell of the light generating means in a first plane and to extend at least 180 degrees around the external shell of the light generating means in a second plane, the second plane perpendicular to the first plane.
Dependencies are inferred from the claim text.