Abstract: A lighting device may comprise a light emitting element and a reflector, the reflector comprising: a first opening surrounding the light emitting element and a second opening; reflector side walls forming the first and second openings, the reflector side walls divergently extending from the first opening away from the light emitting element to the second opening; and corner facets, wherein each corner facet is positioned over a corresponding reflector corner formed by an adjacent pair of reflector side walls at the first opening. In this way, a photosensitive work piece may be uniformly irradiated while mitigating under-curing and over-curing, and while reducing a coupling optics size and a distance between the light emitting elements and the work piece, thereby decreasing cure times and lowering manufacturing costs.

Abstract: A curing device may comprise a first array of LED's, each LED of the first array emitting radiation substantially centered at a first excitation wavelength onto a quantum dot layer, the quantum dot layer positioned above the first array of LED's and configured to partially absorb the first excitation wavelength radiation and down convert the absorbed first excitation wavelength radiation, and partially transmit the emitted first excitation wavelength radiation, wherein the down converted and the partially transmitted first excitation wavelength radiation are directed onto a radiation-curable workpiece.

Abstract: A light source may comprise a housing, a window mounted in a front plane of the housing, a window length spanning a front plane length, and a linear array of light-emitting elements within the housing. The linear array may be aligned with and emit light through the window, and the linear array may span the window length, wherein first and last light-emitting elements of the linear array are positioned adjacent to widthwise edges of the window, and wherein window sidewalls at the widthwise edges are aligned flush with housing sidewalls.

Abstract: A device for UV curing a coating or printed ink on a workpiece such as an optical fiber comprises at least two UV light sources equally spaced around a central axis, each UV light source comprising a reflector and a cylindrical lens, and the UV curing device configured to receive a workpiece along the central axis. The reflectors are configured to substantially reduce the emitting angle of light from the UV light sources, thereby directing the light substantially through the cylindrical lenses, the cylindrical lenses focusing the light intensely along a surface of the workpiece.

Abstract: A light source may comprise a housing, a window mounted in a front plane of the housing, a window length spanning a front plane length, and a linear array of light-emitting elements within the housing. The linear array may be aligned with and emit light through the window, and the linear array may span the window length, wherein first and last light-emitting elements of the linear array are positioned adjacent to widthwise edges of the window, and wherein window sidewalls at the widthwise edges are aligned flush with housing sidewalls.

Abstract: A system and method for monitoring and operating one or more light emitting devices is disclosed. In one example, light intensity within a dual elliptical reflecting chamber is sensed and operation of a fiber curing system is adjusted in response to an amount of sensed light energy.

Abstract: A light source may comprise a housing, a window mounted in a front plane of the housing, a window length spanning a front plane length, and a linear array of light-emitting elements within the housing. The linear array may be aligned with and emit light through the window, and the linear array may span the window length, wherein first and last light-emitting elements of the linear array are positioned adjacent to widthwise edges of the window, and wherein window sidewalls at the widthwise edges are aligned flush with housing sidewalls.

Abstract: A light source may comprise a cylindrical lens, for example a cylindrical Fresnel lens, a linear array of light-emitting elements, the linear array aligned with and emitting light through the cylindrical Fresnel lens, wherein the cylindrical Fresnel lens reduces the angular spread of light in a widthwise axis of the linear array, the linear array spanning a lens length.

Abstract: A light source may comprise a cylindrical lens, for example a cylindrical Fresnel lens, a linear array of light-emitting elements, the linear array aligned with and emitting light through the cylindrical Fresnel lens, wherein the cylindrical Fresnel lens reduces the angular spread of light in a widthwise axis of the linear array, the linear array spanning a lens length.

Abstract: A device for UV curing a coating or printed ink on a workpiece such as an optical fiber comprises dual elliptical reflectors arranged to have a co-located focus. The workpiece is centered at the co-located focus such that the dual elliptical reflectors are disposed on opposing sides of the workpiece. Two separate light sources are positioned at a second focus of each elliptical reflector, wherein light irradiated from the light sources is substantially concentrated onto the surface of the workpiece at the co-located focus.

Abstract: A method for example of irradiating a light-curable material, may comprise irradiating light about a first axis from an array of light-emitting elements towards a light-curable surface, directing the irradiated light through an optical element interposed between the array of light-emitting elements and the light-curable surface, wherein a central axis of the optical element is offset from the first axis, and deflecting the irradiated light directed through the optical element asymmetrically away from the first axis towards the light-curable surface.

Abstract: A lighting module may comprise a housing, a window frame mounted at a front side of the housing, a window mounted at a front plane of the window frame, the window comprising a window front face spanning a front plane length and first and second window sidewalls extending rearwards from first and second edges of the window front face, and an array of light-emitting elements within the housing, the array aligned with and emitting light through a window front plane and through the first and second window sidewalls.

Abstract: A curing device may comprise a first array of LED's, each LED of the first array emitting radiation substantially centered at a first excitation wavelength onto a quantum dot layer, the quantum dot layer positioned above the first array of LED's and configured to partially absorb the first excitation wavelength radiation and down convert the absorbed first excitation wavelength radiation, and partially transmit the emitted first excitation wavelength radiation, wherein the down converted and the partially transmitted first excitation wavelength radiation are directed onto a radiation-curable workpiece.

Abstract: A device for UV curing a coating or printed ink on a workpiece such as an optical fiber comprises dual elliptical reflectors arranged to have a co-located focus. The workpiece is centered at the co-located focus such that the dual elliptical reflectors are disposed on opposing sides of the workpiece. Two separate light sources are positioned at a second focus of each elliptical reflector, wherein light irradiated from the light sources is substantially concentrated onto the surface of the workpiece at the co-located focus.

Abstract: A curing device comprises a first elliptic cylindrical reflector and a second elliptic cylindrical reflector, the first elliptic cylindrical reflector and the second elliptic cylindrical reflector arranged to have a co-located focus, and a light source located at a second focus of the first elliptic cylindrical reflector, wherein light emitted from the light source is reflected to the co-located focus from the first elliptic cylindrical reflector and retro-reflected to the co-located focus from the second elliptic cylindrical reflector.

Abstract: A system and method for monitoring a fiber curing system is disclosed. In one example, transmittance of a curing tube is determined so that curing of a coating applied to a fiber may be more uniform.

Abstract: A device for UV curing a coating or printed ink on an workpiece such as an optical fiber comprises dual elliptical reflectors arranged to have a co-located focus. The workpiece is centered at the co-located focus such that the dual elliptical reflectors are disposed on opposing sides of the workpiece. Two separate light sources are positioned at a second focus of each elliptical reflector, wherein light irradiated from the light sources is substantially concentrated onto the surface of the workpiece at the co-located focus.

Abstract: A lighting module may comprise a housing, a window frame mounted at a front side of the housing, a window mounted at a front plane of the window frame, the window comprising a window front face spanning a front plane length and first and second window sidewalls extending rearwards from first and second edges of the window front face, and an array of light-emitting elements within the housing, the array aligned with and emitting light through a window front plane and through the first and second window sidewalls.

Abstract: Lighting modules include a housing, a window attached to the housing, and an array of light-emitting elements that are positioned within the housing and emit light through the window. The window has a first surface and a second surface. The light from the array of light-emitting elements is emitted through the first surface and the second surface of the window. In some examples, the first surface and the second surface of the window are angled with respect to each other.

Abstract: Lighting modules include a housing, a window attached to the housing, and an array of light-emitting elements that are positioned within the housing and emit light through the window. The window has a first surface and a second surface. The light from the array of light-emitting elements is emitted through the first surface and the second surface of the window. In some examples, the first surface and the second surface of the window are angled with respect to each other.