Abstract: An optical component having a carrier plate or substrate, which includes a first main surface and a second main surface facing away from the first main surface, having a given lens structure in the form of a microlens array on the first main surface, wherein the first lens structure covers the first main surface, and having a lens structure in the form of a microlens array on the second main surface, wherein the lens structure of the second main surface is similar to that of the first in the meaning of a projection, wherein the projection is distorted by a factor a in relation to an origin, which is located at an arbitrary point of the main surfaces, wherein the distortion factor a is at least a=1,001, wherein the distortion is active in at least one direction is disclosed.

Abstract: Disclosed is a large-angle LED lens including a main body which has an incident surface on the inner side of the main body and an exit surface on the outer side thereof. The surfaces are provided symmetrically about the central axis of the main body. The incident and exit surfaces are transparent concave and convex surfaces, respectively. The maximum thickness d1 of the main body at the lower part and the minimum thickness d2 thereof at the top satisfy the relation: 4<d1/d2<6; the concave depth h1 of the concave surface and the thickness d2 satisfy the relation: h1>4*d2; and the convex height h2 of the convex surface and the thickness d2 satisfy the relation: h2>5*d2. With the disclosure, the light-emitting angle is increased while maximizing the utilization of the light. A large-angle emission LED light source module is also disclosed herein.

Abstract: In optical apparatus for illuminating a mask-plane with a line of light, a light source includes four fast-axis stacks of laser diode bars. One optical arrangement collects light beams from all of the diode-laser bar stacks, homogenizes and expands the beams in the fast-axis direction of the diode-laser bar stacks and partially overlaps the homogenized and expanded beams in the fast-axis direction. Another optical arrangement homogenizes the sum of the partially overlapped beams and images the sum of the beams as a line of light having a length in the fast-axis-direction and a width in the slow-axis direction.

Abstract: A light flux controlling member has a flange projecting outward of a radial direction of a light controlling emission surface and leg parts arranged within a range of area width L in a back surface and on the reference optical axis side of the boundary between the flange and the light controlling emission surface, and L is given by L=t×tan(???), where: t is the thickness of the flange or the height from the back surface to the outermost rim part; ? is an angle of incidence of a light parallel to the reference optical axis and incident on the light controlling emission surface in the outermost rim part; and ? is an angle of emission, from the light controlling emission surface, of a refraction light generated when the light parallel to the reference optical axis is incident on the light controlling emission surface from the outermost rim part.

Abstract: A secondary optical lens for a lamp is provided, in which the length of one of two axes passing the center of the bottom surface of the lens has minimal value and the projection surface is formed integrally in a three dimensional shape similar to the bottom surface wherein uniform light distribution with at least one curvature point is realized to resolve public nuisance due to stray light and dazzling in diverse indoor and outdoor environments. In addition, the brightness of lighting and energy efficiency may be improved through uniform lighting distribution. Moreover, the bottom surface of the lens and the projection surface can be fabricated with single molding process, so manufacturing process may be simplified and production cost saving is available.

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: Light flux controlling member (140) includes: light controlling emission surface (141) for controlling the distribution of light emitted from light emitting element (130); back surface (143) that is positioned on a side opposite light controlling emission surface (141); boss (145) that is formed on back surface (143) side; and annular concave part (146) that is formed in the vicinity of a base end of boss (145). Annular concave part (146) has inside surface (146a) that is smoothly connected to an outer peripheral surface of the base end of boss (145) and that has an arc-shaped cross-section in an axial direction of boss (145).

Abstract: A lighting assembly where the light from multiple LEDs is blended to provide uniform lighting over a wide area without bright spots or interference anomalies. The assembly has a metal base that defines a channel. The channel has a bottom surface and opposing side walls. An array of LEDs is mounted on a circuit board. The circuit board is mounted to the bottom surface of the channel. A panel of light diffusing material is suspended over the LED array between the opposing side walls of the channel. The light diffusing material is configured to have lenticules that run parallel to the alignment of the LEDs. The lenticules vary between regions of the panel. Light emitted by the LED array passes through, and is diffused by, the lenticules. The result is a uniform patch of light that does not have bright areas or dark areas.

Abstract: A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis.

Abstract: An illuminating lens includes a main body and a ring portion. The main body has a light exit surface, and the light exit surface has a first light exit surface recessed toward a point on the optical axis and a second light exit surface extending outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region in the center thereof, and a total reflection region on the peripheral side thereof. The ring portion has a back surface configured to guide the light that has been emitted from a light source, totally reflected repeatedly at the light exit surface, and then entered the ring portion to an end surface by total reflection.

Abstract: A lens having a first surface (1) and a second surface (2). The first surface (1) and the second surface (2) are mirror symmetric to a first symmetric plane (A) passing through an optical axis (Y) of the lens and extend in a first direction (X) perpendicular to the optical axis (Y). The curve profiles of the first surface (1) and the second surface (2) on the cross sections perpendicular to the first direction (X) are configured in such a way that light emitting from a light source (3) arranged at a predetermined position of a second surface side is refracted by the first surface (1) and the second surface (2) to be emitted in a direction which is offset from the optical axis (Y) by more than a predetermined angle.

Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base.

Abstract: A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis. A reflective layer is formed on a bottom surface that surrounds a light entrance surface and faces oppositely to the light exit surface.

Abstract: The invention relates to a method for producing a headlamp lens (2) for a vehicle headlamp, in particular for a motor-vehicle headlamp (1), wherein the headlamp lens (2) comprises a transparent body (3) with an optically effective surface (5), which is in particular substantially planar and can be turned towards a light source (10), and an optically effective surface (4), which is in particular convex and can be turned away from the light source (10), wherein the gradient of a light-dark boundary (25) projected by the headlamp lens (2) or a further headlamp lens is measured, and wherein a light diffusing structure (35) is produced in the transparent body (3) in accordance with the measured gradient.

Abstract: A method for providing an optical element may include providing an optical feature in the optical element that spreads or distributes light passing through the optical element. The method may also include providing a texturing in at least a portion of the optical feature of the optical element.

Abstract: In some aspects, an optic is disclosed that includes a light input interface having a rippled surface that can mix the light incident thereon as the light propagates within the optic from the rippled surface to a peripheral surface of the optic, which is configured to redirect the light incident thereon to an output surface through which the light exits the optic.

Abstract: The invention relates to a method for producing an optical moulded body (2), in particular a lens element (2), comprising producing a pre-moulding (4) in a moulding tool by injection moulding of a first plastics material and producing at least one covering layer (6.1, 6.2) on the pre-moulding (4) by injection moulding of a second plastics material, wherein the temperature of the moulding tool for producing the pre-moulding (4) is from 30% to 60% lower than the temperature of the moulding tool for producing the at least one covering layer (6.1, 6.2).

Abstract: An amplified condensing LED light lens and a module thereof are disclosed. The lens is a downwardly tapered cup structure having a first light-incident surface and a second light-incident surface concavely disposed at the bottom of the amplified condensing LED light lens to form a containing space and a light-incident hole, and the containing space is provided for containing a light emitting source, and a residual light blocking structure is protruded from the first light-incident surface for blocking a residual light of the light emitting source. If the distance between the first light-incident surface and the light-incident hole is S, the distance between the bottom of the residual light blocking structure and the light-incident hole is L, 0<L<(?)*S, and S?0.8*D, the residual light blocking structure can hinder the occurrence of a residual light phenomenon caused by the reflection of the light emitting source from the second light-incident surface.

Abstract: A unitary lens comprising 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: A lens and a bulb-type light emitting device lamp employing the lens are disclosed. The lens for changing light distribution of incident illumination light and emitting the illumination light includes a light incident surface that is curved, a top surface that is planar and via which at least a portion of light incident via the light incident surface is emitted, and a side surface that is uneven and via which at least a portion of light incident via the light incident surface is emitted. The bulb-type light emitting device lamp includes the lens and a light emitting device package including one or more light emitting devices.

Abstract: An optical lens may include two sidewall portions arranged opposite to each other; and a midsection connecting the two sidewall portions, the two sidewall portions and the midsection defining a linear concave space accommodating a plurality of light sources in a linear arrangement, the midsection including a light input surface facing toward the light sources and a light output surface facing away from the light sources, the sidewall portions including a reflective surface which can totally reflect at least part of light.

Abstract: The lens array assembly includes a lens array support made of a first molded plastic material exhibiting a volumetric shrinkage upon cooling, the lens array support having a plurality of spaced-apart apertures; and an array of lenses made of second molded plastic material exhibiting a volumetric shrinkage upon cooling, each lens corresponding to one of the apertures of the lens array support and having an actual position in the lens array support that is within a maximum tolerance of 0.20 mm compared to each lens design position.

Abstract: Exemplary embodiments of the present invention relate to wide-angle illumination patterns for short-throw lighting. An illumination lens according to an exemplary embodiment includes a light incident surface that defines a cavity and has a flat top and lateral flanks, the light incident surface being configured to receive light from an underlying light emitting element. The illumination lens also includes a light exiting surface having a central indentation and a surrounding toroid, wherein the flat top faces the central indentation.

Abstract: An optical element is assembled to a light emitting diode (LED) to form an illuminative light source. The optical element includes a transparent main body having a light guiding pillar and an extending part. The light guiding pillar has a top surface and a bottom surface having a recess. The extending part is extended from the circumference of the top surface and an end of the extending part has at least a light-emitting surface. Wherein the LED is disposed on the recess and emits light to the optical element. The extending part guides the light and enlarges the light-emitting angle.

Abstract: The instant invention teaches a compact collection lens with finite conjugates for use in coupling the collected energy from a broadband source into a multi-mode fiber. The lens is reflective in nature and provides finite conjugate imaging in one piece. The entrance and exit surfaces are made concentric with the object and image so that on-axis imaging is completely free of chromatic aberrations. The primary is nominally elliptical and is the only surface with optical power in the lens. The secondary is planar and serves to fold the progressing rays back in the original direction. In summary, the invention comprises a monolithic lens composed of four optical surfaces (two reflective and two transmissive) such that the primary and secondary mirrors are annular and the entrance and exit surfaces are predominantly spherical with their centers located at the front and back focal points.

Abstract: A display device comprises a support, on which there are arranged LED and a light distributing body above the luminous means with a direction of light emission away from the support and the LED. The light distributing body is a three-dimensional body with a light entrance side facing towards the LED and a light exiting side facing away from the LED. The light distributing body consists of transparent material and the light entrance side is shaped to optimise uniform light distribution from the LED to the light exit side, which may take the form of a diffuser.

Abstract: The present invention relates to a A lens configured to a lighting device, comprising an optical part (1) and a mechanical part (2) surrounding the optical part (1), wherein, the mechanical part (2) comprises a blocking protrusion (3) protruding in a direction parallel to the optical axis (4) of the lens, surrounding the optical part (1) and spaced apart from the optical part (1). This type of lens can effectively prevent the optical part from being damaged, for example, in a low pressure molding process, by a hot liquid glue, improve the yield of the lighting device, and have fine waterproof ability at the same time. Also disclosed is a lighting device having this type of lens, and the lighting device has beautiful appearance and fine waterproof effect. A method configured to make this lighting device is also disclosed.

Abstract: Provided is a backlight device having: a light source element having LEDs and a lens expanding light from the LEDs; a housing containing the element; a diffuser plate covering an opening portion of the housing; and a reflection sheet reflecting light emitted from the element, toward the diffuser plate. The LEDs are arranged in one or more rows, at a central zone. The lens has an incident surface receiving light from the LEDs, and an exit surface from which the light goes out, being expanded. The incident surface is a continuous concave surface, and the projected shape thereof as seen from an upper surface of the lens is an ellipse centered on an optical axis of the lens.

Abstract: An anti-glare lens assembly includes a lens and a frame. The lens includes a lens portion and a mounting portion coupled to a circumference of the lens portion. The frame includes a sidewall structure coupled to the lens and a hollow cavity that is surrounded by the sidewall structure to expose the lens portion. The sidewall structure has a wall surface on which at least one anti-glare region is formed. The sidewall structure is provided with a counterpart mounting portion mating the mounting portion in order to couple the frame and the lens together so that when light passes through the lens portion, a portion of the light that is reflected outward by a circumferential portion of the lens portion is homogenized by the anti-glare region to thereby reduce occurrence of glare caused by secondary refraction of the light.

Abstract: Disclosed herein is an indication plate including: a plate member including a light-transmitting material; and an indication part provided at a surface on one side with respect to the thickness direction of the plate member, wherein the indication part includes a light-shielding part including a light-shielding material and covering the surface on one side, and a convex portion including the light-transmitting material, the convex portion projecting from the surface on one side and being exposed from the light-shielding part; the convex portion has a circumferential surface projecting from the light-shielding part, and an end face connecting tip portions of the circumferential surface to each other, and a metallic foil having a light-transmitting property is attached to the end face.

Abstract: A lens comprises a base, the base comprising a bottom face facing a light emitting side of a light source, and a top face; a first member comprising a convex part curved outward from a first portion of the top face, and a first light emergent face formed on a top of the convex part; wherein light emitted from the first light emergent face illuminates areas far away from the lens; and a second member connecting to the first member on a second portion of the top face, the second member comprising a second light emergent face; wherein the second light emergent face is at an angle from the top face, the second light emergent face is located at a lower elevation than the first light emergent face in relation to the top face, and light emitted from the second light emergent face illuminates areas near the lens.

Abstract: The light-emitting apparatus includes: a first light-emitting source which emits light of a first chromaticity from a first light-emitting surface; a second light-emitting source which has a second light-emitting surface provided adjacently to the first light-emitting surface and which emits light of a second chromaticity different from the first chromaticity, from the second light-emitting surface; and a lens member having a light-entering surface which is arranged facing the first light-emitting surface and the second light-emitting surface and on which depressions and projections that mix light entering from the first light-emitting source and the second light-emitting source are formed, and a light-exiting surface which radiates light from the first light-emitting source and the second light-emitting source that has entered from the light-entering surface.

Abstract: The present invention relates to an optical lens made of a molded product of a resin composition obtained by nano-dispersing a thermally conductive filler in a transparent resin, a content of the thermally conductive filler being 1 wt % or more based on a weight of the molded product, and the thermally conductive filler being nano-dispersed so that a total light transmittance of 30% or more is achieved when the molded product has a thickness of 2 mm, and a method for manufacturing the same. The optical lens according to the present invention has high transparency, improved resistance to heat and aging, high surface hardness, and improved lightfastness that can meet recent demands.

Abstract: A light emitting device, method and lens, the device comprising an LED emitting a beam of light and a transparent light conditioning lens concentric with the beam of light and through which the beam of light travels. The lens comprises a light concentrating part and a light diffusing part. The concentrating part concentrates a first portion of the light to form a first beam of light having a narrow angle of dispersion, preferably of less than about 10 degrees and the light diffusing part diffuses a second portion of the light to form a second beam of light concentric with the first beam and having a wide angle of dispersion greater than the narrow angle of dispersion, preferably greater than about 70 degrees. An intensity of the first beam is greater than an intensity of the second beam.

Abstract: A light projector for operation during a show that contains theatrical haze. The light projector may include a light source, a lens, a fan, and a housing having an inner chamber. The lens may have a first side and a second side. The first side of the lens may be contained within the inner chamber of the housing. The second side the lens may be outside of the inner chamber of the housing. The fan may be configured to be operated to generate air flow inside the inner chamber of the housing. A substantial portion of the air flow may be directed to impinge upon the first side of the lens to cause de-fogging of theatrical haze condensate on the first side of the lens.

Abstract: A lens device for focusing or diffusing light beams includes a lens body having a flat sheet, a first convex lens extruded away from one end of the flat sheet, a second convex lens extruded away from another end of the flat sheet, the distance between an apex of the first convex lens and the center of the bottom of the first convex lens being larger than the distance between an apex of the second convex lens and the center of the bottom of the second convex lens. Although the surface of the first convex lens is not flawless after the compression molding and light beams cannot be refracted uniformly by the first convex lens, the second convex lens refracts the light beams for pre-adjusting before the light beams are refracted by the first convex lens.

Abstract: A converging lens with a multiple-curvature compound surface is revealed. The converging lens includes an incident surface and an emission surface. A crest-line along X axis and a crest-line along Y axis are on the emission surface, crossed each other and dividing the emission surface into four curved surface sections. The X-axis curvature as well as the Y-axis curvature of each curved surface section can be the same or different. An angle ? between the crest-line along X axis and the X-axis ranges from 0˜30 degrees. Thereby light from a light sources passes through the converging lens and projects to produce a light pattern required. The converging lens is used in concentrator modules and lighting fixtures.

Abstract: A lens member includes at least one of the annular prisms including a facet at an edge between an inner annular surface and an outer surface of the at least one of the annular prisms. The prisms with facets may be provided at a central portion of the lens member and the facets are configured to refract light toward a light-exit side of the lens member.

Abstract: An illuminating lens includes a light entrance surface, a light exit surface, and a reversing surface. The light exit surface has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface includes a transmissive region in the center thereof and a total reflection region on the peripheral side thereof. The reversing surface has a shape such that the light that has been emitted from the light source, totally reflected repeatedly at the light exit surface, and then reached the reversing surface is guided to the first light exit surface by total reflection.

Abstract: Provided is an optical detecting device, wherein a photodiode is provided on a first surface of a substrate, a planar output electrode for outputting electrical signals corresponding to a quantity of light received by the photodiode is provided on a second surface of the substrate opposite to the first surface, a cutout portion is provided in a third surface of the substrate such that the cutout portion is in contact with the output electrode provided on the second surface, said third surface being different from the first surface and the second surface, and an electrode connected to the output electrode is provided on the inner surface of the cutout portion.

Abstract: An LED lens and a light emitting device using the same are disclosed. The LED lens comprises a light incident surface, a light emitting surface, and a bottom surface. The light emitting surface includes a first recession portion disposed at the central thereof and a protrusion portion connected to the outer periphery of the emitting recession portion. The light incident surface comprises a first optically active area and a second optically active area. The first optically active area is disposed at the central of the light incident surface, and has a second recession portion; the second optically active area is a concave surface connected to the first optically active area. The LED lens satisfies specific conditions. The LED lens distributes a light beam emitted from the light emitting device to form an even light pattern.

Abstract: A lens structure for mobile phone flashlight is provided, to improve luminance of edge area and overall luminance. The lens structure includes a lens body. The lens body includes an incident surface and a light-emitting surface, and the incident surface is a Fresnel lens. Edge area of the light-emitting surface is partially disposed symmetrically with at least a pair of second surfaces, and remaining area forms a first surface. The edges of the second surfaces tilt towards direction of the incident surface so that the first surface forms an angle with the second surfaces. As such, the lens structure is able to refract light to project in near rectangular area onto a target object when taking picture.

Abstract: A lens includes an upper flat surface having a first outer diameter, a bottom surface having a second outer diameter and a third inner diameter, an external curved surface which connects the upper flat surface and the bottom surface, and an inner curved surface which protrudes toward the upper flat surface from the bottom surface at the third inner diameter.

Abstract: The high sag thick lens is for use in an illumination apparatus, such as a solid state light source. The lens is made of a first lens part having an optical active surface and a series of elongated baffles, the baffles having a top portion, the top portions defining a line that follows the curvature of the optical active surface to create a second lens part of uniform thickness. A second lens part is fused to the first lens part to create the lens. The second lens part has an optical active surface and a series of elongated baffles, the baffles having a thickness comparable to the thickness of the corresponding optical active surfaces. The first and the second baffles are intertwined along the entire length of their lateral surfaces.

Abstract: A light guide lens includes a front light-exit surface, a rear end surface formed with a recess, and an outer surrounding surface. The front light-exit surface is a convex surface disposed at an optical axis (Z). The rear end surface includes a curved surface portion that defines an innermost end of the recess, and that is a convex surface. The rear end surface further includes an inner surrounding surface portion that extends rearward from a periphery of the curved surface portion. The outer surrounding surface diverges forwardly along the optical axis (Z), and includes a first curved surface part and a second curved surface part. The first and second curved surface parts are disposed on opposite sides of an imaginary plane on which the optical axis (Z) is disposed, and are asymmetrical relative to each other with respect to the imaginary plane.

Abstract: A light source apparatus includes: a light source section that emits a luminous flux whose quantity of light is larger in a central region than in a peripheral region; a condensing optical system that condenses an incoming luminous flux; and a light distribution correction optical element arranged between the light source section and the condensing optical section, in which a central portion has a negative power that is more intense than that of a peripheral region.

Abstract: A shaped lens is provided for use with a white light LED device to produce a light pattern on a surface; the lens being shaped to produce a substantially uniform color in the light pattern by compensating for color variation versus elevation angle produced by the LED device. The shaped lens has two-axis orthogonal symmetry and an outer surface divided into a top portion and a side portion separated by a circumferential boundary portion. The top portion and the side portion each have a generally vertically convex surface and the circumferential boundary portion has a discontinuity in curvature providing a substantially vertical portion between the top and side portions.

Abstract: An optical element is disclosed. The optical element includes a single, transparent, rotationally-symmetric lens with a batwing shaped cross-section, extending angularly away from a longitudinal axis. The lens also includes a variety of curved, straight, specular and optionally diffuse portions on its longitudinal and transverse faces, all of which cause a variety of internal and external reflections, refractions, and optionally scattering.

Abstract: A lens includes a light incident surface and a light exiting surface. The light exiting surface includes a first curved surface, a first convex surface, a second convex surface, a second curved surface, and a third curved surface. The first curved surface is located at the center of the light exiting surface. The first and second convex surfaces are arranged at two opposite sides of the first curved surface respectively for converging the light exiting therefrom, the first convex surface, the first curved surface, and the second convex surface connect in sequence along a first direction. The first and third curved surface are arranged at another two opposite sides of the first curved surface respectively; the second curved surface, the first curved surface, and the third curved surface connect in sequence along a second direction substantially perpendicular to the first direction.

Abstract: A light fixture has a body and a plurality of light emitting diodes. A carrier supports the light emitting diodes and is pivotally mounted to the body. An asymmetric lens is mounted to the carrier.