Abstract:
An embodiment of an optical manifold has first and second collimators, each arranged to receive light from a source and transmit the light to an exit port of the collimator, and a separator arranged to emit some of the light from the exit ports of the first and second collimators and to recycle some of the light into the collimators. Another embodiment has at least three collimators of substantially equal length and having central axes, respective light sources at entry ports of the collimators, the collimators being arranged with their central axes parallel and with their light sources in a common plane and reflectors positioned to direct light from exit ports of the collimators to a selectively reflective component that guides all the light into a common exit beam.
Abstract:
An optical device (270) for coupling the luminous output of a light-emitting diode (LED, 22) to a predominantly spherical pattern comprises a transfer section (271) that receives light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED's (22, 23, 24) light enters the transfer section. The transfer section (271) can comprises a compound eelliptical concentrator (271) operating via total internal reflection. The ejector section can have a variety of shapes (272, 273), and can have diffusive features on its surface as well.
Abstract:
An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED's light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED's light enters the transfer section. The transfer section can comprises a compound elliptic concentrator operating via total internal reflection. The ejector section can have a variety of shapes, and can have diffusive features on its surface as well, including a phosphor coating. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.
Abstract:
The present embodiments provide methods and systems for use in providing enhanced illumination. Some embodiments include at least two light sources and one or more smoothly rotating wheels, where the one or more wheels comprises at least one mirror sector, the circumferential portion of the mirror sector is the inverse of the number of said sources, a first source of the sources is so disposed that the mirror sector reflects light from the first source into a common output path, where the first source pulsing such that a duty cycle of the first source corresponds to a time the mirror sector reflects light from the first source into the common output path.
Abstract:
An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED's light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED's light enters the transfer section. The transfer section can comprises a compound elliptic concentrator operating via total internal reflection. The ejector section can have a variety of shapes, and can have diffusive features on its surface as well, including a phosphor coating. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.
Abstract:
A thin-film LED (10, 20, 30) mounted on a substrate (5) and with a defined upper surface (2) approximately hemispherically emitting light, with the upper surface (2) being diffusively transmissive, a lower first layer of identically defined linear prismatic film (31) separated from the upper surface (2), a upper second layer of linear prismatic film (32), identical to but oriented orthogonally to the layer (31), and a circumferential vertical reflective wall (24) bordering on both of the first (31) and second layer (32) and extending height from the substrate (5) to the top of the second layer (32)
Abstract:
The present embodiments provide methods and systems for use in providing enhanced illumination. Some embodiments include at least two light sources (81 L, 82L, 83L, 84L) and one or more smoothly rotating wheels, where the one or more wheels comprises at least one mirror sector (81M, 82M, 83M), the circumferential portion of the mirror sector is the inverse of the number of said sources, a first source (81 L) of the sources is so disposed that the mirror sector (81 M) reflects light from the first source into a common output path (86), where the first source pulsing such that a duty cycle of the first source corresponds to a time the mirror sector reflects light from the first source into the common output path (86).
Abstract:
Some embodiments provide a luminance-enhanced light source. These embodiments include a thin-film LED mounted on a substrate and with a defined upper surface approximately hemispherically emitting light, with the upper surface being diffusely transmissive, a lower first layer of identically defined linear prismatic film separated from the upper surface by a non-evanescent air gap so as to cover the upper surface, a upper second layer of linear prismatic film, identical to but oriented orthogonally to the first layer, and a circumferential vertical reflective wall bordering on both of the first and second layers and extending in height from the substrate to the top of the second layer.
Abstract:
An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED’s light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED’s light enters the transfer section. The transfer section can comprises a compound elliptic concentrator operating via total internal reflection. The ejector section can have a variety of shapes, and can have diffusive features on its surface as well. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.
Abstract:
An embodiment of an optical manifold has first and second collimators, each arranged to receive light from a source and transmit the light to an exit port of the collimator, and a separator arranged to emit some of the light from the exit ports of the first and second collimators and to recycle some of the light into the collimators. Another embodiment has at least three collimators of substantially equal length and having central axes, respective light sources at entry ports of the collimators, the collimators being arranged with their central axes parallel and with their light sources in a common plane and reflectors positioned to direct light from exit ports of the collimators to a selectively reflective component that guides all the light into a common exit beam.