Abstract: A light emitting device includes a substrate, a light source, and a covering member. The light source has an optical axis, a light source bottom portion and a light source upper portion opposite to the light source bottom portion in the optical axis. The light source is provided on the substrate at the light source bottom portion. The covering member has a bottom surface and a top portion opposite to the bottom surface in the optical axis and is provided on the substrate at the bottom surface to cover the light source. The covering member has a recess portion on the top portion above the light source and around the optical axis. The covering member tapers toward the bottom surface.

Abstract: Provided is a back light unit comprising a plurality of LED light source formed on a printed circuit board and a resin layer which is laminated on the LED light source and forwardly induces diffusion of the emitted light wherein the resin layer is made of synthetic resin comprising an oligomer. According to the present invention, an essential light guide plate for a general back light unit configuration is removed and a resin layer mainly consisting of an oligomer is used to guide the light source, and thereby decreasing the number of the light source, minimizing luminance variation when the unit is lighted at a high temperature and kept it for a predetermined time period, and implementing excellent heat-resistant property and optical property.

Abstract: A lighting apparatus, in particular in the form of ceiling spots, with a perforated panel having at least one aperture for light to pass through, as well as a lens arranged so as to be concealed behind the perforated panel to emit a bundle of light beams that narrows on its way from the lens to the perforated panel, passes through the aperture for light to pass through, and broadens again after leaving the perforated panel. The lens is shaped in such a manner that a direct beam portion and/or direct light portion emitted without reflection from the lens and an indirect beam portion and/or indirect light portion emitted with reflection from the lens have essentially identical beam angles, and each essentially completely make up and/or fill out the overall bundle of light beams emitted by the lens.

Abstract: A light emitting device package including light emitting devices, and optical lenses respectively disposed over the light emitting devices. Further, a respective optical lens includes an extending member extending from a body of the respective optical lens, and including a first portion laterally extending in a first direction substantially perpendicular to the central axis of the respective light emitting device, and a second portion extending towards the substrate in a second direction substantially parallel with the central axis of the respective light emitting device. A vertical cross section of the second portion is substantially symmetrical with respect to an axis that is spaced apart in the first direction from and substantially parallel with the central axis of the respective light emitting device.

Abstract: An optical light emission system for a motor vehicle, the optical system comprising: a first light emission subsystem comprising a first set of light sources, and a second light emission subsystem comprising a second set of light sources and a light guide able to diffuse the light from said light sources of the second set of light sources outside the optical system. The light guide is arranged facing the first set of light sources such that the first set of light sources substantially radiates through the light guide outside the optical system.

Abstract: In an illumination device, light emitted from an emission element is directed toward a second luminous flux control member by a first luminous flux control member of a luminous flux control member, and then toward the side and rear of the illumination device from the second luminous flux control member. The light is then caused to pass through a cover having a shape in which the ratio (R/O) of the distance (R) between P3-P4 in the Y direction to the distance (O) between P1-P2 in the X direction is greater than 0.33 and less than 1.2, and then the light is evenly distributed to the front, sides and rear of the illumination device.

Abstract: Obtained is a controller for an air-conditioning apparatus with which indication by light can be effectively performed. The controller includes a light source 21 capable of emitting light in a plurality of colors and a light guiding member 22 that diffuses the light emitted from the light source 21 so as to increase an indication area, thereby performing light indication in an indication region 22a. By increasing the light indication area, light indication can be effectively performed, and accordingly, visual recognition by the user can be easily performed.

Abstract: A lens for wide lateral-angle distribution of light from an LED light source on a board and defining an axis. The lens includes a board-adjacent base spaced from and around the axis, an inner light-receiving surface, an intermediate surface and an outer output surface configured for refracting light received from the inner and intermediate surfaces. The base forms an opening into a light-receiving cavity defined by the inner surface which includes (a) substantially planar front and back surface portions each extending from the opening and (b) an end surface portion spanning the cavity between the front and back surfaces and comprising front and back segments extending inwardly from the front and back surface portions, respectively, and each angled with respect to the other. The intermediate surface is positioned and configured for reflecting light received from the inner surface toward the outer output surface.

Abstract: A lens for a primarily-elongate distribution of light from a light emitter having an axis with a lens base being substantially normal to the axis. The lens includes a substantially-rectangular emitter opening to a cavity defined by a refracting inner surface. The lens further includes a refracting main output surface transverse the axis and a reflecting surface extending from the lens base away from the axis outwardly of and around the inner surface. The reflecting surface receives substantially all forward and rearward light and a portion of lateral light refracted by the inner surface for total internal reflection (TIR) toward the main output surface which refracts such light into the elongate distribution. The lens is configured such that the other portion of the lateral light exits the lens away from the axis for wide-angle distribution along the elongate distribution.

Abstract: A side-emitting LED lens includes a bottom surface having an incident surface through which light from the LED enters, a top surface that reflects light, and a side surface which connects the bottom surface to the top surface, and through which light exits the lens. Within the incident surface, a central area directs light emitted from the LED to the top surface by refracting the light in a direction away from the optical axis, whereby the height of the lens can be reduced. A surrounding area connected to the central area directs light emitted from the LED to the top surface by refracting the light in a direction toward the optical axis, whereby the width or radius of the lens can be reduced.

Abstract: An optical lens includes a first optical surface located at a bottom thereof, a third optical surface located at a top thereof and arranged oppositely to the first optical surface, and a second optical surface extending between the first optical surface and the third optical surface. The third optical surface is recessed downwardly towards the first optical surface. The light from the LED light source enters into the optical lens through the first optical surface, most of the entering light is directly refracted out of the optical lens through the second optical surface, and a part of the entering light that strikes the third optical surface is first reflected by the third optical surface towards the second optical surface via total internal reflection and then refracted out of the optical lens through the second optical surface. A backlight module incorporating the optical lens is also provided.

Abstract: An LED lighting apparatus including a plurality of lens members aligned substantially along a preferential/non-preferential line. Each lens member being elongate across the preferential/non-preferential line with all elongate lens members being in substantially same orientation and each configured for light to exit the unitary lens predominantly toward the preferential side. Each lens member includes an elongate opening for receiving light from a group of emitters aligned across the preferential/non-preferential line; a refracting inner surface forming a void and having a racetrack-shaped surrounding surface extending from the opening to a substantially planar elongate end surface; and a lateral surface having opposed preferential and non-preferential surface portions, the non-preferential portion being at an angle to the base plane which is greater than the angle of the preferential portion to the base plane.

Abstract: The present disclosure relates to a thin-profile lens for shaping a beam of light from a light source, such as a light emitting diode (LED), for example in a flashlight or other lighting unit. In various embodiments, the lens may be combined with an adjustment mechanism for varying the focus of the beam of light, and may be housed in a structure supporting the lens, light source, and adjustment mechanism. In various embodiments, the structure also may include a power source, controls, interconnections, and electronics. In various embodiments, the thin profile of the lens may allow the lens to be used in any of a number of applications, ranging from narrow diameter flashlights to large diameter light sources.

Abstract: The present invention relates to a lighting device. Light flux controlling member 120 of lighting device 100 according to the present invention distributes light emitted from light emitting element 110 at least sideward and rearward. The light emitted from light flux controlling member 120 is diffused and transmitted to a cover. Housing 170 is formed in a shape that does not block a main component of the light emitted rearward from light flux controlling member 120. Lighting device 100 can distribute the emitted light from light emitting element 110 forward, sideward and rearward in all directions.

Abstract: A light source module includes at least one light bar, a reflector, and at least one bar-shaped reflection unit. The light bar includes light-emitting elements arranged along an extension direction. The reflector has at least one accommodation space accommodating the light bar and reflective convex surfaces located on two opposite sides of the light bar. The bar-shaped reflection unit is located above the light bar, extends along the extension direction, and has a reflection surface facing the light bar. A cross-sectional line obtained by cutting the reflection surface along an optical axis of any of the light-emitting elements and along a direction perpendicular to the extension direction includes a convex arc line protruding toward the light-emitting elements and two concave arc lines connected to two opposite sides of the convex arc line.

Abstract: Embodiments described herein provide apparatus and methods for processing semiconductor substrates with uniform laser energy. A laser pulse or beam is directed to a spatial homogenizer, which may be a plurality of lenses arranged along a plane perpendicular to the optical path of the laser energy, an example being a microlens array. The spatially uniformized energy produced by the spatial homogenizer is then directed to a refractive medium that has a plurality of thicknesses. Each thickness of the plurality of thicknesses is different from the other thicknesses by at least the coherence length of the laser energy.

Abstract: A lens for a motor vehicle optical module, wherein it comprises a series of patterns on an optical surface, said patterns extending in a preferred direction.

Abstract: A display apparatus includes a display panel, a light guide plate, at least one light source and at least one reflective body. The light guide plate is disposed below the display panel. The light guide plate has a light-incident surface, a light-emitting surface, a rear surface, a plurality of concave microstructures and a plurality of reflective bodies. The rear surface is located farther away from the display panel than the light-emitting surface is. The light-incident surface is connected to the light-emitting surface and the rear surface. The concave microstructures are located on the rear surface. The reflective bodies are respectively located in the concave microstructures. The light source is disposed opposite to the light-incident surface.

Abstract: A lighting apparatus with uniform illumination distribution, according to various embodiments, can include a lens for area lighting. In one embodiment, the lens comprises a plurality of cross-sections identified by a thickness ratio defined at different angles. The thickness ratio is determined relative to the thickness of the cross-section defined at a center angle of the lens. In another embodiment, the lighting apparatus with uniform illumination distribution includes a lens having an inner surface and an outer surface. A profile of the inner surface and the outer surface is composed of a plurality of piecewise circular arcs defined with radii and circle centers. The lens is formed as a complex curve lens by joining the piecewise circular arcs of the inner surface and the outer surface.

Abstract: An optical lens including a first light exit surface, a total internal reflection (TIR) surface, a second light exit surface and a third light exit surface connected in an order, and correspondingly has a first intersection, a second intersection and a third intersection therebetween. A first line between the first intersection and a reference point on an optical axis of the optical lens intersects with the optical axis to form a first angle between 30 degrees to 60 degrees, and a first direction of the reference point pointing toward a point on the TIR surface intersects with a normal of the first light exit surface at the point to form a reflecting angle larger than a critical angle of TIR. A second line between the second intersection and the reference point intersects with the first line to form a second angle between 10 degrees to 30 degrees.

Abstract: A lighting device including a light converting structure, a light accommodating structure, and a lighting device that utilizes a light converting structure and/or a light accommodating structure to obtain a thinner configuration. The light converting structure includes a bottom conical recess to accommodate a light source, and a top conical recess to distribute the lights emitted from the light source. The light accommodating structure includes a through hole with a small opening and a large opening. A light source is accommodated in the through hole at the large opening, and the lights emitted from the light source output at the small opening.

Abstract: Embodiments described herein provide apparatus and methods for processing semiconductor substrates with uniform laser energy. A laser pulse or beam is directed to a spatial homogenizer, which may be a plurality of lenses arranged along a plane perpendicular to the optical path of the laser energy, an example being a microlens array. The spatially uniformized energy produced by the spatial homogenizer is then directed to a refractive medium that has a plurality of thicknesses. Each thickness of the plurality of thicknesses is different from the other thicknesses by at least the coherence length of the laser energy.

Abstract: A lens for forming a predetermined pattern from a light source includes a first region of an inner surface configured to receive light from the light source and to bend the light into a first line segment. The lens includes a second region of the inner surface configured to receive the light from the light source and to bend the light into a second line segment perpendicular to the first line segment, the first line segment forming a cross of a “T” and the second line segment forming the stem of the “T.

Abstract: A light directing composite film includes a planar top major surface, a planar bottom major surface, a plurality of lenticular lens elements disposed between the top major surface and the bottom major surface, and a plurality of light reflection regions and light transmission regions disposed between the plurality of lenticular lens and the planar bottom major surface.

Abstract: Provided are an optical member capable of implementing optical images having a desired shape and a lighting device using the optical member. The optical member can include a base substrate and a plurality of unit patterns sequentially arranged on a first surface of the base substrate and each having an inclined surface with respect to the first surface. Each unit pattern can be extended in a pattern extension direction, respectively. The plurality of unit patterns and the inclined surfaces thereof can be structurally arranged on the first surface of the base substrate such that any beam of incident light that strikes a unit pattern at a right angle to the pattern extension direction in which said unit pattern extends is guided away from the optical member.

Abstract: A phosphor device comprising a carrier member having upper and lower faces; a reflecting member having a side surface portion and a bottom portion, the reflecting member being arranged at the upper face of the carrier member; a phosphor layer being embedded in the reflecting member; a transmitting member having a first end face and a second end face, the transmitting member being arranged on the phosphor layer, wherein the first end face of the transmitting member completely covers the top portion of the phosphor layer.

Abstract: A lens (12; 32; 42; 52) comprising a transparent main body (13; 43; 53), wherein a surface (14, 15; 14, 45; 54, 55) of the main body (13; 43; 53) is at least partly covered with an internally reflecting reflection layer (17), the lens (12; 32; 42; 52) has at least one first focal point (F1) and at least one second focal point (F2), at least the first focal point (F1) lies at least partly on a non-covered surface region of the main body (15; 45; 55), and at least one phosphor element (18) bears against the main body (13; 43; 53) at a contact region (19) having at least one first focal point (F1).

Abstract: A lens includes an optical axis, a light source recess arranged through the optical axis, a reflection surface crossing through the optical axis, and a critical reflection surface which is arranged in a spaced relationship with the optical axis. The critical reflection surface is arranged between the light source recess and the reflection surface and receives the light from the light source recess and the reflection surface and reflects the light from the light source recess and the reflection surface towards the reflection surface. The emission light of the lens is light emitted forward of the light emitting surface which is reflected via the reflection surface and the critical reflection surface. Therefore, people cannot receive directly light emitted forward of the LED after it cross through the lens. In result, high luminance light from the LED is prevented from ripping into eyes, which achieve the aim of anti-glare.

Abstract: A lens includes a bottom face, a light incident face defined in the bottom face, a plurality of light reflective faces connecting the light incident face with the bottom face, and a light emerging face opposite to the light incident face. The light incident face includes a first face and a plurality of second faces alternating with the light reflective faces. The light reflective faces are flat faces parallel to an optical axis of the lens. An LED unit using the lens is also disclosed.

Abstract: Provided is an omnidirectional lens, having a housing having a closed end and an open end, a series of facets circumferentially arranged on the housing; and a series of concentric facets disposed on the closed end.

Abstract: A light harvesting lens module for collecting an ambient light includes a plurality of annular lenses. The annular lenses are arranged in order from center to outside to form a disc-structure. Each annular lens has a light-input curved surface and a light-output curved surface. The light-input curved surface is in opposition to the center. The light-output curved surface is in opposition to the light-input curved surface, and faces the center. The light is incident on the light-input curved surface, and is refracted and tend to concentrate by the light-input curved surface. Then, the light is emitted from the annular lens, and is refracted to the direction of the center by the light-output curved surface. The ambient light is able to be compressed into a point light by the lens module, so as to increase the concentration ratio and the compression ratio to further get the effective advantage.

Abstract: A circular symmetric optical element for redirecting light which is emitted by a light source through a wavelength converting element, wherein the emitted light have an average color cA and a wavelength distribution depending on an emission angle from the wavelength converting element. Light having the average color cA have an emission angle tA.

Abstract: The present disclosure relates to a lens. The lens includes a bottom surface, a light input surface, a light output surface and reflective structure. The light input surface is a curved surface depressing from a center of the bottom surface. The light output surface is opposite to the bottom surface. The light output surface includes a concave surface located at a center thereof and a convex surface located at peripheral thereof and surrounding the concave surface. The reflective structure is received in the light input surface. The reflective structure includes a plurality of globoid reflective units. The present disclosure also relates to a light source module with the lens.

Abstract: An optical element for a lamp or lighting apparatus having at least one light emitting diode (LED) as a light source is provided. The optical element is positioned proximate to the LED and receives light rays therefrom. In turn, the optical element distributes the substantially unidirectional light output from the LED into an omnidirectional output with a controlled variance in light intensity at different directions about the LED. A diffuser can also be used around the optical element and LED to provide further distribution of the light rays by e.g., light scattering.

Abstract: In this invention, the first refraction groove and the second refraction groove, which are located on two opposite ends of the reflection lens, are set on the same central axis. The said lens features a translucent shell and is of a horn-shaped appearance. The horn or cone-shaped mouth points from the first refraction groove to the second refraction groove. The outer surface is designed to have multiple reflection sections. When the LED light source is positioned at or in the first refraction groove, the light emitted from LED is refracted by the first refraction groove and then is sent out from the cone mouth at the second refraction groove. Meanwhile, the light which gets through the translucent lens shell is refracted by the multi-section reflection surface and then is also projected from the cone mouth.

Abstract: A lens for an LED street lamp has an external curved surface that has a concave surface portion on one side thereof. A back surface of the lens has a micro-prism array and retainer feet. A recess in the back surface receives an LED light source. The outer surface of the lens has facets or windows that provide overlapping projections of light from adjacent facets. The lens is generally cushion shaped with an indentation at one side. The lens directs light in an asymmetrical distribution transverse to the lens and to direct light symmetrically over a wide area in a longitudinal direction of the lens.

Abstract: An illumination device (1) has a light-emitting element (6b), and a luminous flux control member (6c) that includes a first lens (10) and a second lens (20). The first lens (10) and the second lens (20) are assembled such that a first surface (10c) and a second rear surface (20a) are in contact, or such that a minute gap exists between the first surface (10c) and the second rear surface (20a). A first conical concave surface (10d) having its apex on the central axis (C) is formed by indenting a first rear surface (10a). A second concave surface (20d), having its apex on the central axis (C) and having a curved shape the curvature of which decreases as the distance from the central axis increases, is formed by indenting a second surface (20c).

Abstract: A lens includes a first lens section and a second lens section, which are integrally formed. The first lens section is formed in a hemispherical shell shape including a first recess opened toward one side of an optical axis direction in which light from a light source is made incident. The second lens section is formed in a hemispherical shell shape including a second recess opened toward the other side of the optical axis direction.

Abstract: An optical system is provided having a first optical element for directing LED light received outwards, and two second optical elements each disposed to receive a portion of the light from a different one of two opposing ends of the first optical element so that the second optical elements redirects such portion of the light received outwards. Light from the optical system is preferably collimated along a first dimension, and non-collimated along a second dimension perpendicular to the first dimension. The first optical element and second optical elements are disposed in an integrated structure to facilitate mounting of the optical system upon a circuit board having LEDs which provide light to the first optical element. A light bar is also provided having multiple sets of LEDs on circuit boards, where each set provides light to a different one of the optical systems.

Abstract: The embodiments of the present invention provide a kind of optical lens and a kind of miner's helmet lamp.

Abstract: The present disclose relates to a lens. The lens includes a bottom surface; a light input surface depressed from a center of the bottom surface; a light output surface opposite to the light input surface, the light output surface comprising a concave surface located at a center thereof and a convex surface surrounding the concave surface; and total reflective side surfaces. The side surface includes a first and a second side surfaces gradually slanting outwardly along a direction from the bottom surface to the light output surface, and a third side surface and a fourth side surface being perpendicular to the bottom surface. The present disclose also relates to a light source module with the lens.

Abstract: A reflector assembly for eliminating unwanted stray lights comprising a reflector body having a reflector body focal point on a reflector body optical axis where a light source is positioned and a front opening for receiving a lens, wherein the lens is configured to reflect light rays which emanate from the light source to strike the lens to the reflector body which is configured to reflect the light rays reflected by the lens back to the light source, and to reflect light rays which emanate from the light source and reflected by the reflector body to strike the lens back to the light source.

Abstract: An optical lens includes a first optical surface located at a bottom thereof, a third optical surface located at a top thereof and arranged oppositely to the first optical surface, and a second optical surface extending between the first optical surface and the third optical surface. The third optical surface is recessed downwardly towards the first optical surface. The light from the LED light source enters into the optical lens through the first optical surface, most of the entering light is directly refracted out of the optical lens through the second optical surface, and a part of the entering light that strikes the third optical surface is first reflected by the third optical surface towards the second optical surface via total internal reflection and then refracted out of the optical lens through the second optical surface. A backlight module incorporating the optical lens is also provided.

Abstract: Disclosed is a light emitting apparatus. The light emitting apparatus includes a package body; first and second electrodes; a light emitting device electrically connected to the first and second electrodes and including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer between the first and second conductive semiconductor layers; and a lens supported on the package body and at least a part of the lens including a reflective structure. The package body includes a first cavity, one ends of the first and second electrodes are exposed in the first cavity and other ends of the first and second electrodes are exposed at lateral sides of the package body, and a second cavity is formed at a predetermined portion of the first electrode exposed in the first cavity.

Abstract: A folded circularly symmetric illumination optic comprising a first light transfer mode having a first central refractive surface and a second central refractive surface, wherein one of the first and second central refractive surfaces has at least one peened feature; a second light transfer mode having a first refractive surface, a first TIR surface, a second TIR surface and a second refractive surface; a third light transfer mode having a first refractive surface, a first TIR surface and a second refractive surface, wherein the first TIR surface has at least one peening feature, and wherein the second refractive surface is conical; wherein the first TIR surface and second refractive surface of the second light transfer mode is coincident at least one point, wherein the second refractive surface of the third light transfer mode is coincident with the first TIR surface and second refractive surface of the second light transfer mode.

Abstract: An exemplary lens includes a bottom surface, a first light exit surface extending upwardly from an outer periphery of the bottom surface, a second light exit surface extending upwardly from a top of the first light exit surface, and a reflecting surface extending inwardly and downwardly from a top of the second light exit surface towards the bottom surface to have a funnel-shaped configuration. A receiving space is defined in the bottom surface to receive a light source therein. The receiving space is defined by a top surface and a side surface interconnecting the top surface and the bottom surface. A pyramid surface is in the middle of the top surface and recessed upwardly and inwardly away from the bottom surface.

Abstract: The present disclosure provides a liquid crystal display (LCD) module and an LCD device. The LCD module includes a backplane, and a reflector sheet arranged on the backplane. The backplane is configured with a plurality of reinforced structures, a plurality of concave parts are formed between the reinforced structures, and the reflector sheet is arranged over the reinforced structures. The concave part(s) is configured with a support member used for supporting the reflector sheet. In the present disclosure, because the concave part of the backplane is configured with a support member used for supporting the reflector sheet, the reflector sheet is prevented from deforming and being depressed on the concave part of the backplane because of no support, and the reflector sheet is prevented from abnormally reflecting light because of deformation, thereby increasing the display effect of the LCD device.

Abstract: Various embodiments relate to a lens for omnidirectional illumination being rotationally symmetrical and including a light incident surface, a first refractive surface, a first reflective surface, a second refractive surface, and a third refractive surface. A first portion of light which passed through the light incident surface is refracted by the first refractive surface to produce first emergent light. A second portion of the light which passed through the light incident surface is reflected by the first reflective surface to the second refractive surface, and then is refracted by the second refractive surface to produce second emergent light. A third portion of the light which passed through the light incident surface is refracted by the third light refractive surface to produce third emergent light, the first emergent light, the second emergent light and the third emergent light jointly achieved omnidirectional illumination.

Abstract: A conversion element (10) is specified, comprising a scattering layer (12), a reflection layer (14), and a conversion layer (16) arranged between the scattering layer (12) and the reflection layer (14). The scattering layer (12) is designed to transmit a first portion (20) of a primary radiation (18) impinging on it from a side facing away from the conversion layer (16) into the conversion layer (16), and to scatter a second portion (22) of the primary radiation (18) impinging on it towards that side of the scattering layer (12) which faces away from the conversion layer (16). The conversion layer (16) comprises at least one conversion means (25) which is designed to convert at least part of the first portion of the primary radiation (18) into a second radiation (19) having a higher wavelength different from the primary radiation (18). The reflection layer (14) has a reflective effect at least with regard to the second radiation (19).

Abstract: A lamp includes a single emitter structure having a substrate with 25 or more light emitting diodes (LEDs) arranged thereon and a power rating of 80 Watts or more, a total internal reflection (TIR) lens with a plurality of refractive surface regions disposed on the step-shaped upper surface of the optical body, and a holder having a plurality of tabs disposed along an inside rim of the holder and configured for radial compression fit with a flange of the lens, and three or more support members configured for centering the optical body member with respect to the single emitter structure.