Abstract: A lighting device and a gap member and a lens used in a lighting device. The lens may include a circular incident surface that has a furrow surface crossing a surface and prism surfaces formed at both sides of the furrow surface; and an exit surface that reflects and transmits light traveling inside through the incident surface to the outside. The gap member may include a ring-shaped reflective portion having a declined surface toward the center; and a ring-shaped wall extending downward coaxially with the reflective portion, and has a flat ring shape. The lighting device may include a substrate; a light emitting unit including a plurality of LEDs mounted on the substrate; a case body accommodating the light emitting unit; a lens disposed on the light emitting unit; a first waterproof ring disposed around the lens; and a case cover having an opening that exposes the lens, and combined with the case body and the first waterproof ring.

Abstract: A combined optical element of the present invention includes a first optical element for collecting light in one direction on an irradiated surface; and a second optical element for collecting light in another direction on the irradiated surface. The first optical element and the second optical element are superposed with light-incoming surfaces thereof as being a common surface, and a light-outgoing surface is formed only with a superposed part. This prevents light from irradiating unnecessary parts, which allows the irradiated surface of a photographic subject to be irradiated with a small amount of light emission.

Abstract: A decorative oversized key-shaped Christmas/holiday novelty item has a plastic shell having the form of an oversized key. The shell defines a completely encapsulated interior space. An electrically induced lighting system is disposed within the interior space. A recording device can be included within the holiday key such that the children can record a holiday message for Santa. The novelty item enables children living in homes absent a chimney, fireplace or other structure typically considered to provide access by Santa Claus to the home, to practice a Christmas holiday tradition relying upon such a structural access means. The light or recording device is provided to indicate that Santa has used the key to access the residence. A story presentation media depicting the scenario is provided creating an entertainment system. The holiday key is stored in an integrated storing section within the presentation media packaging.

Abstract: An apparatus and associated method for operating a portable light assembly. In accordance with some embodiments, a frame providing a bridge and defining a transport region and a deployment region is slidingly connected to a mast. An arm is further connected to the mast by a hinge while a light fixture is connected to the arm. In various embodiments, the light fixture is capable of transitioning from a deployed position where the mast engages the deployment region and a transport position where the mast and light fixture are disposed within the transport region.

Abstract: The light emitting device comprises: a bowl-shaped reflector; a point light source; and a combined lens provided on the light axis of the point light source. And the combined lens has: a convex lens part having a focal point coinciding with the point light source, refracting center light around the light axis into parallel light; and a concave lens part provided around the convex lens part, and refracting and diffusing light having an angle with the light axis larger than an angle between the center light and the light axis so as to increase the angle with the light axis. A virtual focal point of the light refracted and diffused with the concave lens part coincides with the focal point of the paraboloid of revolution.

Abstract: A light guide plate comprising a flat-plate member provided with a first surface including a flat surface portion and a recessed portion in a conic-like solid shape and a second surface opposed to the first surface, the flat-plate member configured to receive light from the recessed portion, to propagate the light inside the flat-plate member while diffusing the light, and to radiate the diffused light from the second surface, wherein an angle between an inclined surface of the recessed portion and a normal line to the flat surface portion is smaller than a value obtained by calculation in which twice a critical angle where the light is totally reflected by the second surface inside the flat-plate member is subtracted from 90°.

Abstract: A light-transmissive shell capable of intensifying an illuminant and wide-angle light transmission includes a lens body and an extension portion integrally extended from the lens body in a vertical direction or at an acute angle to the vertical direction. The lens body includes an outer top surface structured as a convexity and an inner bottom surface structured as a flat surface or an inner concavity. The extension portion includes an inner surface extending around from the inner bottom surface of the lens body. An arcuate surface is formed as a joint between the inner bottom surface of the lens body and the inner surface of the extension portion. The light emitted by an illuminant is intensified through the lens body and guided into a wide-angle light through the extension portion.

Abstract: A light emitting device assembly includes: a light emitting device; and a light output member provided on the light emitting element and having an upper surface on which a curved part that outputs light from the light emitting device is provided, wherein a value of a x coordinate of a curved part center axis is a positive value, a locus of an edge of a curved part forms a circle or oval around the curved part center axis, light on a Z-axis output from an origin is output from the curved part at an angle ?0 (?0>0) formed with the Z-axis within a XZ-plane, and function F(?,??) expressed by F(?,??)=(??+????)/????(1) monotonously increases, takes the maximum value at ?=?0 (<0), and then, monotonously decreases as a value of ? increases from the minimum value.

Abstract: A semiconductor luminaire includes a carrier; an optoelectronic semiconductor chip mounted on the carrier, the semiconductor chip emitting ultraviolet or visible radiation; a luminaire housing not covering the semiconductor chip in a direction of main emittance; an optical cover placed downstream of the semiconductor chip in a direction of mails emittance: and an index matching layer located between the semiconductor chip mid the optical cover, wherein the optical cover provides a radiation exit surface of the luminaire, and wherein radiation running along the direction of main emittance from the semiconductor chip to the radiation exit surface solely propagates in solid or liquid materials.

Abstract: An LED module includes an LED and a lens fixed with the LED for refracting light emitted by the LED. The lens has a center axis and a concaved inner face for incidence of the light and an opposite convex outer face for the light refracting out thereof. The lens is symmetric to a first plane and a second plane perpendicularly intersected with the first plane at the center axis. In the first plane, a peak intensity for the LED occurs within 68-78 degrees off the center axis. In the second plane, a peak intensity occurs within 0-22 degrees off the center axis.

Abstract: An LED module includes an LED and a lens fixed with the LED for refracting light emitted by the LED. The lens has a center axis and a concaved inner face for incidence of the light and an opposite convex outer face for the light refracting out thereof. A peak intensity for light generated by the LED occurs within 52-67 degrees off the center axis when the light leaves the outer face.

Abstract: According to one embodiment, a lighting device includes a body section, a light source, a globe, and a heat transfer section. The light source is provided on one end portion of the body section. The light source includes a light emitting element. The globe is provided so as to cover the light source. The heat transfer section in thermal contacts with at least one of an inner surface of the globe and a heat dissipation surface on the end portion side of the body section.

Abstract: An apparatus adapted for eliminating a ghost image of point light sources is disclosed. The apparatus includes a plurality of point light sources adjacently arranged, and a plurality of medium elements provided corresponding to the point light sources. Each of the point light sources is adapted for emitting a light. Each of the medium elements includes a light input surface, and a light output surface, and both of the light input surface and the output surface are arcuate surfaces adapted for diffusing the light emitted from the point light source. The point light source emits the light, and the light is inputted from the light input surface of the medium element and outputted from the light output surface of the medium element, thus configuring a uniformly distributed light without producing a ghost image. Further, a fluorescent material may be mixed in the medium element for obtaining a color combined light.

Abstract: An LED unit includes an LED and a lens receiving the LED. The LED includes a chassis, a base on the chassis and an envelope fixed on the base. The lens has two crossed grooves, a hole and a chamber sequentially defined in a bottom face the lens, along an upward direction thereof. The chassis of the LED can be selected to fit in one of the two grooves. The base of the LED is engaged in the hole of the lens, and the envelope of the LED is received in the chamber of the lens.

Abstract: A system for equalizing pulse to pulse energy of a light beam includes a group of optical devices including an optical device configured to exhibit nonlinear properties, e.g., higher order or third order nonlinear properties. Transmission properties of an unequalized light beam passing through the group of optical devices change such that an output intensity of a resulting light beam output from the optical devices is equalized. One example configuration includes at least first and second prisms having nonlinear properties, i.e., higher order or third order, and configured as a beam steering system.

Abstract: An object of the present invention is to provide an antireflective film having an anti-reflection function with which reflection of external light which is incident on the antireflective film can be further reduced and a high-visibility display device having such an antireflective film. The tops of the plurality of pyramidal projections are evenly spaced and each side of the base of a pyramidal projection is in contact with one side of the base of an adjacent pyramidal projection. That is, one pyramidal projection is surrounded by other pyramidal projections, and the base of the pyramidal projection and the base of the adjacent pyramidal projection have a side in common.

Abstract: A lamp module is provided, including an insulative member, a cover lens connected to the insulative member, and a light module disposed between the insulative member and the cover lens. The light module can emit light through the cover lens for illumination.

Abstract: An apparatus and method is characterized by providing an optical transfer function between a predetermined illuminated surface pattern, such as a street light pattern, and a predetermined energy distribution pattern of a light source, such as that from an LED. A lens is formed having a shape defined by the optical transfer function. The optical transfer function is derived by generating an energy distribution pattern using the predetermined energy distribution pattern of the light source. Then the projection of the energy distribution pattern onto the illuminated surface is generated. The projection is then compared to the predetermined illuminated surface pattern to determine if it acceptably matches. The process continues reiteratively until an acceptable match is achieved.

Abstract: A light signal contains a semiconductor light source and an optical system for representing signal aspects (properties), especially on rail-bound traffic routes. In order to obtain the advantageous properties of filament light signals, especially with respect to the beam spread in horizontal direction, the semiconductor light source is configured as a point light source, especially as an individual LED—light-emitting diode—or as an individual HLED—high current LED—and the optical system has an axially symmetric cylindrical lens and a rotationally symmetric convex lens, especially a Fresnel lens.

Abstract: A secondary optical lamp guard includes an upper half portion, two clamp portions and a lower half portion, and the upper half portion has a plurality of optical refractive angles formed on an internal side of the upper half portion for improving the effect of the optical refractive angles, and the upper half portion and the lower half portion are processed by a plasma treatment to produce nanoscale holes for facilitating the dissipation of heat generated by a light source.

Abstract: An OLED display includes a first substrate including a thin film transistor and an OLED, and a second substrate on the first substrate and including a corner-cube pattern facing the first substrate.

Abstract: The invention relates to a lighting system comprising: -a light source (1) to emit light; -a transparent first optical element (3) comprising at least one bounded space (5) filled with blue phase mode liquid crystal material, wherein at least a part of the emitted light successively passes a first boundary surface (6) and a second boundary surface (7) of the bounded space, said first boundary surface being unparallel to said second boundary surface; and—electric means (9-12) to apply an electric field to the bounded space substantially parallel to a direction of the emitted light incident on the first boundary surface of the at least one bounded space.

Abstract: A sight system is provided which may be selectively used in a variety of different ways. In one example, the sight system may be positioned on a rifle to provide a rifle sight system. In this example, the sight system may be positioned on the rifle barrel a substantial distance away from a user's eye. Advantageously, such an implementation may permit a user to effectively sight the rifle without compromising situational awareness. In another example, the sight system may be used to provide a telescopic sight with a reticle (e.g., a dot, crosshair, mark, or other appropriate shape) superimposed on an image (e.g., a zoomed or non-zoomed image) displayed from a camera. In another example, the sight system may be used to provide an occluded sight in which a camera and/or display of the sight system is disabled. As a result, a reticle may be displayed over an opaque background.

Abstract: Light sources and methods for spreading a beam of electromagnetic radiation. The light sources include a scattering element with an outlet and an angular-selective element with an inlet spatially disposed between the outlet of the scattering element and an electromagnetic radiation source. The beam enters the inlet traveling in a direction of propagation and propagates through the beam spreader to the outlet for transmission from the outlet. The scattering element includes a scattering medium configured to scatter the electromagnetic radiation in the beam to provide a two-dimensional spatial distribution for intensity that is substantially uniformly across the outlet. The angular-selective element is configured to reflect a majority of the electromagnetic radiation of the first beam scattered by the scattering medium in a direction opposite to the propagation direction and reaching the angular-selective element.

Abstract: An illumination lens including a first part being free of prismatic patterns, a second part including prismatic patterns on both sides of the first part and configured to increase light distribution in the both sides of the first part, and a lens cover covering the first and second parts with the first and second parts being disposed on a substantially same plane under the lens cover.

Abstract: The sizes of the respective reflecting units vary in the image take-out section along the Z direction in association with the state of the total reflection angle in the light guide section. Thus, it becomes possible to keep the sufficient effective light beam width of the image light input thereto in all of the reflecting units. Therefore, the deterioration in the image light caused by the reflection in the reflecting units can be avoided, and as a result, the degradation of the resolution of the image due to the virtual image light thus emitted can be prevented.

Abstract: An exemplary illumination device includes a solid-state light source and an anti-glare plate. The solid-state light source is configured for generating light, and the solid-state light source defines a central axis. The anti-glare plate is arranged correspondingly generally adjacent to the solid-state light source. The plate includes an incident surface and an output surface at opposite sides thereof. The output surface has parallel micro-structures each have a length parallel to a first reference axis, and the micro-structures is arranged in two groups at opposite sides of the central axis. The micro-structures are configured for contracting a radiating range of the light entering the plate. Such contraction is along respective opposite directions of a second reference axis, and the second reference axis is substantially perpendicular to the first reference axis.

Abstract: An anti-reflection film that can provide high visibility and has an anti-reflection function by which reflection of incident light from external can be further reduced, and a display device having such an anti-reflection film. A plurality of contiguous pyramidal projections is arranged in a geometric pattern, so that reflection of incident light is prevented. In addition, a protective layer formed of a material having a lower refractive index than the pyramidal projections is provided so as to fill a space between the plurality of pyramidal projections. The plurality of pyramidal projections has a hexagonal shape and can be densely arranged with no space therebetween. Further, since six sides of each pyramidal projection are provided at a different angle from the base, light can be effectively scattered in many directions.

Abstract: A lens includes a light incident surface, a first light emitting surface, and a second light emitting surface. The first light emitting surface is a Fresnel surface and opposite to the light incident surface. The first light emitting surface includes a number of concentric annular surfaces and a first border intersecting with some of the concentric annular surfaces. The first light emitting surface and the light incident surface cooperatively form a Fresnel lens portion with an optical axis. The second light emitting surface is located at a side of the first light emitting surface adjacent to the first border. An angle formed between any tangent plane of the second light emitting surface and a plane perpendicular to the optical axis is smaller than an angle formed between any tangent plane of the concentric annular surfaces passing any point on the first border and the plane perpendicular to the optical axis.

Abstract: A lens member includes a central axis, a light-incident side including a Fresnel-lens surface provided with a plurality of annular prisms concentrically arranged with respect to the central axis, and a light-exit surface opposite to the light-incident side. The Fresnel-lens surface further includes an annular lens portion that is concentrically arranged with respect to the central axis and that is extended to be longer and wider than the plurality of annular prisms. Provided is an optical unit in which a light source and a lens member are combined, and parts are disposed in a space provided in an outer periphery of the annular lens portion.

Abstract: A high efficiency refraction body includes a light source chamber and a main refraction surface opposite to the light source chamber. A first refraction surface and a second refraction surface for refracting the lights are formed to a peripheral of the high efficiency refraction body. A light source is received to the light source chamber. Lights from the light source will be total reflected because the incident angles of the lights exceed a critical angle of the main refraction surface. The reflected lights will be refracted through the first refraction surface and the second refraction surface so as to pass a lateral of the refraction body. A uniform lateral illumination of the refraction body will correct the poor lateral illumination of LED light devices.

Abstract: There is provided an optical film for backlight units or illuminators. The optical film comprises a light-incident portion and a light exit portion. Here, the optical film is characterized in that it comprises a plurality of protrusions formed on at least one of the light-incident portion and the light exit portion, wherein a plurality of the protrusions satisfies the requirements of the following Equation: 80×H1/3?P?200×H1/3 and 0.I×D?H?D, provided that a mean diameter of protrusions is represented by ‘D’, a mean height of protrusions is represented by 1H?, and a mean distance between adjacent protrusions is represented by ‘P’. Therefore, the optical film may be useful to suppress blocking between films and the formation of surface defects, which are caused by the Moire, Newton ring and wet-out phenomena, without degrading the brightness.

Abstract: The present invention provides an illumination beam shaping system, which enables the emergent surface of a lighting system of light excitation chips to emit a light beam of uniform illumination brightness. The present invention uses a dividing device, structured from curved lenses arranged in an array, to effect a pre-dividing operation on the total quantity of light from a light excitation chip, after which post-diffusion is carried out to form a light beam with uniform illumination brightness. A plurality of conical light beams in an array are shaped and emerge from an output side, and the bottom portion of each of the conical light beams form an actual optical surface, which act on an optical diffusing component for refraction and diffusion processing, thereby enabling the emergent face of the system to obtain uniform illumination brightness.

Abstract: Solid state lamps and bulbs comprising different combinations and arrangements of a light source, one or more wavelength conversion materials, regions or layers which are positioned separately or remotely with respect to the light source, and a separate diffuser. These are arranged on a heat sink in a manner that allows for the fabrication of lamps and bulbs that are efficient, reliable and cost effective and can provide an essentially omni-directional emission pattern, even with a light source comprised of a co-planar arrangement of LEDs. Additionally, this arrangement allows aesthetic masking or concealment of the appearance of the conversion regions or layers when the lamp is not illuminated. Various embodiments of the invention may be used to address many of the difficulties associated with utilizing efficient solid state light sources such as LEDs in the fabrication of lamps or bulbs suitable for direct replacement of traditional incandescent bulbs.

Abstract: A spread lens including a first lens surface through which the emitted light from the light emitting device is inputted; a second lens surface spreading the inputted light to an outside; refraction parts which extend between both side ends of each of the first and second lens surfaces, are formed in a concave-convex shape, and refract the emitted light from the light emitting device; and support parts which extend at both side ends of the second lens surface and separate the refraction parts and the light emitting device from each other.

Abstract: A triangle prism (PR1) that refracts light coming from a first light-reception face (RS1) is formed on a first outgoing face (IS1) of a first prism sheet (PS1). Furthermore, one of the side surfaces (SS1a, SS2a) of that triangle prism (PR1) will refract light coming from the first light-reception face (RS1), and the other side surface will refract light coming from that side surface.

Abstract: An illuminating lens includes: a light entrance surface through which light emitted from a light source enters the lens; and a light exit surface through which the light that has entered the lens exits the lens. The light exit surface has: a concave portion intersecting the optical axis; and a convex portion provided around the concave portion to extend continuously from the concave portion. The light exit surface is formed in a shape such that a curvature C of micro-segments of the light exit surface in a cross section including the optical axis has a maximum value at a position outward from the midpoint of the convex portion.

Abstract: An LED module includes an LED and a lens covering the LED. The LED has an optical axis. The lens has an incident face for incidence of light of the LED into the lens and an opposite emitting face for refracting the light of the LED out of the lens. The emitting face has two elongated, ellipsoid lateral surfaces and a middle surface located between and connecting with the two ellipsoid lateral surfaces. The incident face has a sidewall and a ceiling connecting to a top of the sidewall. The middle surface of the emitting face and the ceiling of the incident face are corresponding to each other and inclined laterally relative to the optical axis of the LED.

Abstract: A surface light source device includes a lamp post, a number of light sources distributed in rows on the side surfaces of the lamp post, and a number of first prism sheets and second prism sheets arranged around the lamp post in that order. Each of the first prism sheets and the second prism sheets includes a light incident surface and a light exit surface opposite to the light incident surface. Each of the light exit surfaces includes a number of substantially parallel elongated protrusions, and the longitudinal directions of the elongated protrusions of the first prism sheet and the second prism sheet are substantially perpendicular to each other. The first prism sheets and the lamp post are approximately spaced by a first predefined distance, and the second prism sheets and the first prism sheets are approximately spaced by a second predefined distance.

Abstract: An illuminating device in which stray lights are prevented and light distribution design is easy by making it possible to receive lights emitted from an LED lamp with an external reflecting mirror as much as possible is provided. A reflecting mirror having a concave reflecting surface reflecting an incident light, a light emitting element, and a lens molding a light emitting element therein and having a lens surface opposed to a light emitting surface of the light emitting element, the lens surface being in a slope shape with its central portion being projected to the light emitting element are included, and the reflecting surface of the reflecting mirror and the light emitting surface of the light emitting element are disposed to be opposed to each other with the lens surface of the lens therebetween so that light emitted from the light emitting element is reflected at the lens surface to be emitted outside the lens to be incident on the reflecting surface of the reflecting mirror.

Abstract: An illuminating lens includes: a light entrance surface through which light emitted from a light source enters the lens; and a light exit surface through which the light that has entered the lens exits the lens. The light exit surface has: a concave portion intersecting the optical axis; and a convex portion provided around the concave portion to extend continuously from the concave portion. The light exit surface is formed in a shape such that a curvature C of micro-segments of the light exit surface in a cross section including the optical axis has a maximum value at a position outward from the midpoint of the convex portion.

Abstract: A light guiding assembly is provided. The light guiding assembly includes a first light guiding plate, a second light guiding plate, and a shielding plate. The second light guiding plate is located adjacent to the first light guiding plate. The shielding plate is positioned between the first light guiding plate and the second light guiding plate, to prevent light guided by the first light guiding plate and light guided by the second light guiding plate from mixing.

Abstract: A display assembly includes a light pipe having re-directing channels defined therein. When a light source is provided in a compartment of the light pipe, light admitted from the light source to the light pipe emits from a front face of the light pipe. In addition, light emitted from reflective surfaces spaced apart from external surfaces of the light pipe combine with light emitted through the front face to provide glow regions of light resulting in symmetric uniform illumination of the display.

Abstract: In a backlight apparatus, laminated optical sheets are housed in a tray such that a wall portion thereof surrounds their circumferences so that the optical sheets receive light from fluorescent lights. Tips of one corner portion A of optical sheets preferably have a shape in which the tips are trimmed by line segments extending between two edges defining the corner portions. At the wall portion of the tray, an opposing surface is formed along the line segments of the corner portions so as to correspond to the shape of the corner portions having tips trimmed off. The opposing surface restrains the line segments.

Abstract: A fixture for providing omnidirectional continuous lighting comprises a light source (10). an optical system (20) adapted to concentrate, direct and shape an incident into an output slit beam, a motor (30) coupled to a revolvable part (25) of the optical system (20), thereby enabling rotation of the output slit beam, around a rotational axis (y), with such an angular velocity (?) and in such a manner that the provided lighting appears continuous to a spectator.

Abstract: Disclosed herein is a transparent optical element for changing a propagation direction of light. The transparent optical element includes a light-receiving surface and a light-emitting surface. The light-receiving surface is formed thereon with a first recess having a bottom surface and a second recess located thereon. The second recess has a lateral surface connected to the bottom surface such that a first angle of about 90 degrees to less than 180 degrees is formed between the bottom surface and the lateral surface. An indicator light comprising the transparent optical element is also disclosed.

Abstract: A luminaire includes a planar light guide having a substrate with a back surface, a light emitting surface, and an edge therebetween with a light source disposed at the edge for emitting light thereinto. A geometric structure on the light guide provides for directing light entering the light guide edge outwardly from the light-emitting surface. The luminaire may be utilized for retrofitting of existing canned lighting or in flush mount applications.

Abstract: An optical sheet (30) includes a sheet-like body portion (32), and unit prisms (35) arranged on one surface (32a) of the body portion. Each unit prism (35) extends linearly in a direction intersecting the arrangement direction. Each unit prism, when viewed in a direction parallel to the arrangement direction of the unit prisms, has an uneven polygonal-line-shaped contour and, with reference to raised portions (37) defined by the polygonal-line-shaped contour of each unit prism, the distance between a top (37a) of each raised portion, a farthest point from the body portion in the raised portion, and the body portion in the normal direction of the body portion is not constant. The optical sheet can prevent significant problems when it is superimposed on another member.

Abstract: Embodiment of the invention include a lighting device having a tubular current-conductive housing, a lamp assembly, an insulator sleeve, and a diffuser globe. The lamp assembly can include one or more lamps such as one or more light emitting diodes (LEDs). The diffuser globe is preferably a fumed blown glass diffuser globe having a concentrated region for refracting and diffusing light. The diffuser globe can include an internal diffuser for further refraction and control of the light. Embodiments also include a solar powered hook-shaped luminaire having a solar panel, a body member, and a diffuser globe. Embodiments further include a shatter resistant, portable, remote controllable, programmable, rechargeable, and floatable lighting device and/or globe luminaire, which can be automatically, manually, remotely, and/or locally controlled.

Abstract: A lighting arrangement comprising: a light reflective enclosure; at least one radiation source housed within the enclosure and operable to generate excitation light of a first wavelength range; a substantially spherical optical component mounted over the enclosure opening and at least one phosphor operable to absorb at least a portion of the excitation light and to emit light of a second wavelength range, wherein light generated by the arrangement comprises the combined light of the first and second wavelength ranges and wherein the at least one phosphor material is provided as a layer on at least a part of the surface of the optical component that is enclosed within the volume of the enclosure when the component is mounted to the enclosure.