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.

Abstract: A light flux controlling member capable of uniformly illuminating an illumination-target surface arranged approximately in parallel with an optical axis of a light-emitting device and reducing the weight of an lighting device is provided. An light flux controlling member is arranged on an edge side of an illumination-target member together with a light-emitting device (10) to emit light from the light-emitting device (10) from an output surface (14) after causing the light to enter from an input surface (15). The input surface (14) includes a first input surface (18) arranged to be positioned on an optical axis L1 of the light-emitting device (10) approximately parallel to the illumination-target surface and a second input surface (20) positioned to enclose the first input surface (18).

Abstract: A light fixture unit can include a light source having an optical axis and a light guide body. The light guide body can include a light incident portion at a front of the light source protruding from a first surface, a light exit portion formed to be elongated in a first direction on a second surface, and a light guide portion. The light incident unit can be configured to make light enter into the light guide body while converting the light into parallel light in a second direction. The light guide portion can include second reflection surfaces disposed to provide a recess on the second surface, each of which is inclined at 45 degrees with respect to the optical axis outward in the first direction individually, and third reflection surfaces which make light reflected internally on the second reflection surfaces in the first direction reflected internally in the second direction toward the light exit portion.

Abstract: A light-emitting device of the present invention includes: a LED chip 10; a chip mounting member 70 having a conductive plate (heat transfer plate) 71 one surface side of which the LED chip 10 is mounted on and a conductor patterns 73, 73 which is formed on the one surface side of the conductive plate 71 through an insulating part 72 and electrically connected to the LED chip 10; and a sheet-shaped connecting member 80 disposed on the other surface side of the conductive plate 71 to connect the conductive plate 71 to a body of the luminaire 90 which is a metal member for holding the chip mounting member 70. The connecting member 80 is made of a resin sheet which includes a filler and whose viscosity is reduced by heating, and the connecting member 80 has an electrical insulating property and thermally connects the conductive plate 71 and the body 90 of the luminaire to each other.

Abstract: An OLED luminaire 11 has an OLED light source 13 having a transparent substrate 33 and optical control means 23 coupled to the substrate of the OLED light source for altering the intensity distribution of the light emitted from the light emitting surface of the OLED light source. The optical control means can be in the form of foreign material 23a introduced into the OLED substrate, or a discrete optical c nrol element 23b, 23c applied to the lighting emitting surface of the OLED.

Abstract: Disclosed exemplary solid state light fixtures use optical cavities to combine or integrate light from LEDs or the like. In such a fixture, the cavity is formed by a light transmissive structure having a volume, and a diffuse reflector that covers a contoured portion of the structure. A heat sink member supports a flexible circuit board so as to position the light emitters to couple light to the transmissive structure and provide effective heat dissipation. The circuit board has flexible tabs mounting the emitters. When installed in the fixture, the tabs bend and the emitters press against a sufficiently rigid periphery of the light transmissive structure. TIM may be compressed between the heat sink member and the opposite surface of each tab. Heat conductive surface pads and heat conductors through vias through the tabs conduct heat from the emitters to the heat sink member, e.g. through the TIM.

Abstract: A lens and a light emitting device applying the same are provided. The lens has a first profile along a first cross-section and a second profile along a second cross-section perpendicular to the first cross-section. The first profile is asymmetric with respect to the second cross-section, and the second profile is symmetric with respect to the first cross-section. A contour center of a light emergent surface of the lens is located on an intersection of the first cross-section and the second cross-section. The light emergent surface comprises a first curved surface and a second curved surface being connected with each other at the second cross-section. Furthermore, a curvature of the first curved surface and a curvature of the second curved surface are discontinuous at the contour center. The light emitting device applies the lens for receiving a light emitted from a light source and provides an asymmetric light output.

Abstract: A one-dimensional linear batwing lens, and retrofit-style lamp and fixture including the same, are provided. The one-dimensional linear batwing lens includes a top portion and a bottom portion. The top portion includes a first top spherical surface and a second top spherical surface. The bottom portion includes a first bottom spherical surface and a pair of second bottom spherical surfaces. Thus, the one-dimensional linear batwing lens includes five spherical surfaces. A surface of the bottom portion of the lens faces a light source on which the lens acts. A retrofit-style lamp including the same additionally includes a plurality of light sources, wherein the one-dimensional linear batwing lens beam shapes light emitted by at least one light source of the plurality of light sources. The fixture including the same additionally includes a housing and a power supply.

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: An LED module comprises an LED having an optical axis and a lens for refracting light from the LED. The lens is symmetric relative to a first plane at which the optical axis is located. The peak light intensity in the first plane occurs within 0-5 degrees off the optical axis. The light intensity in the first plane decreases from the peak light intensity with the increase of the angle off the optical axis. In a second plane perpendicularly intersected with the first plane at the optical axis, the peak light intensity occurs within 33-41 degrees off the optical axis, and the light intensity at the optical axis is larger than a half-peak light intensity. Within 0-33 degrees off the optical axis, the light intensity in the second plane increases with the increase of the angle off the optical axis.

Abstract: A lighting device can be configured to prevent light beams emitted from a light source from passing through an outer peripheral surface of a lens and from being projected outside of the illumination direction of the lighting device. In the lighting device, the light source can be disposed within a lighting chamber defined by a substrate and the lens. The lens can have a lens cut portion on the rear surface thereof. A reflection surface can be formed in the outer peripheral surface of the lens. The substrate can also have a reflecting portion configured to project light beams reflected by the outer peripheral surface of the lens in the illumination direction. The reflecting portion can be disposed on the front side of the substrate.

Abstract: Disclosed is a lens including a light emitting surface. The light emitting surface of the lens according to the embodiment of the present invention has a coordinate obtained by subtracting a Bezier coordinate corresponding to an aspheric coordinate from the aspheric coordinate.

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 prism sheet including a transparent substrate, a plurality of prism rods and at least one optical grating structure is provided. The transparent substrate has a first surface and a second surface opposite to the first surface. The prism rods are disposed on the first surface, wherein each of the prism rods extends along a first direction, and the prism rods are arranged along a second direction. The optical grating structure is disposed on the first surface and located between two adjacent ones of the prism rods, wherein the optical grating structure extends along the first direction. In addition, a backlight module using the above-mentioned prism sheet is also provided.

Abstract: An LED spotlight has an arrangement having at least one LED, above which there is arranged a color conversion substance, and an optical system of a substantially transparent material, which directs incident light from the LED arrangement in the direction of an exit surface by means of total internal reflection. The base surface of the conical optical system may thereby have the shape of a polygon. The outer wall of the conical optical system may have at least in partial regions planar facets. The color conversion material may be provided in the shape of a cuboid above the LED arrangement.

Abstract: A lens applied to a light emitting element includes a first surface profile and a second surface profile opposite to the first surface profile. The first surface profile defines a first trench facing the light emitting element, and the first trench includes a bottom curved surface serving as a light incident surface. The second surface profile includes a top curved surface, and serves as a light emitting surface. Both the bottom and the top curved surfaces are mirror symmetric to the first suppositional plane P1 (X=0), and mirror asymmetric to the second suppositional plane P2 (Y=0) to cooperatively adjust light from the light emitting element to obtain an asymmetric light field. An illumination device having the lens is further provided.

Abstract: A light guide is a quarter of cylinder in shape and includes a cylindrical emitting surface, an incident surface adjacent to and facing away from the cylindrical emitting surface, and a connecting surface connecting the cylindrical emitting surface and incident surface. The light guide defines five a number of grooves in the incident surface. Each groove is bounded by two surfaces. The inclined angle of the two surface is designed to satisfy a set of conditions to improve light uniformity of the cylindrical emitting surface.

Abstract: A light guiding diffuser used for assembling with a light emitting diode module to form an illuminating light source. The light guiding diffuser includes an elliptical ring-shaped base portion and a convex portion extended from a surface of the base portion and formed a space with the base portion for accommodating the light emitting diode module. The convex portion has a cross section which has a minimum thickness in a center thereof and the thickness of the cross section continuous increases from the center toward the base portion.

Abstract: An illuminating device includes a light source (101) and an optical element including a light receiving surface (203), first and second light exit surfaces (205, 207). When the center of a light emitting surface (201) is designated as P1, a point at the edge of the light emitting surface is designated as P2 and an axis which passes through P1 and is perpendicular to the light emitting surface is designated as an optical axis, the optical element has a hollow around the optical axis with respect to the edge.

Abstract: An LED signal that includes a lens having an optical segment configured to direct at least some of the incoming generally collimated light rays from the sun passing through the lens away from an LED found in the traffic signal.

Abstract: An LED unit includes a printed circuit board, an LED mounted on the printed circuit board, and a lens covering the LED and fixed on the printed circuit board. The lens includes a pedestal and an optical element connected to the pedestal. The lens has a light-incident face formed in an interior thereof for receiving light emitted from the LED into the lens, and a light-emergent face formed on an outside thereof for refracting the light out of the lens. The optical element has two opposite sides longer than the other two opposite sides thereof so that the light pattern modulated by the optical element has two opposite ends wider than a middle thereof.

Abstract: A bulb for an electric lamp having a light-emitting element includes a light transmittable shell body for housing the light-emitting element. The light transmittable shell body includes an accommodation for receiving the light-emitting element of the electric lamp, and an inner surface surrounding the accommodation. On the inner surface of the light transmittable shell body a plurality of light-guiding portions are provided for guiding the light emitted from the light-emitting element towards an outside of the light transmittable shell body.

Abstract: A light-emitting device of the present invention includes: a LED chip 10; a chip mounting member 70 having a conductive plate (heat transfer plate) 71 one surface side of which the LED chip 10 is mounted on and a conductor patterns 73, 73 which is formed on the one surface side of the conductive plate 71 through an insulating part 72 and electrically connected to the LED chip 10; and a sheet-shaped connecting member 80 disposed on the other surface side of the conductive plate 71 to connect the conductive plate 71 to a body of the luminaire 90 which is a metal member for holding the chip mounting member 70. The connecting member 80 is made of a resin sheet which includes a filler and whose viscosity is reduced by heating, and the connecting member 80 has an electrical insulating property and thermally connects the conductive plate 71 and the body 90 of the luminaire to each other.

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 light uniformization structure and light emitting module is related to a light uniformization structure including a first material layer having a plurality of microstructures in a surface thereof, a second material layer having a plurality of microstructures in a surface thereof, and a spacer layer. The spacer layer is located between the first material layer and the second material layer, and a refractive index of the spacer layer is smaller than a refractive index of the first material layer and a refractive index of the second material layer.

Abstract: A light uniformization structure and light emitting module is related to a light uniformization structure includeing a first material layer having a plurality of microstructures in a surface thereof, a second material layer having a plurality of microstructures in a surface thereof, and a spacer layer. The spacer layer is located between the first material layer and the second material layer, and a refractive index of the spacer layer is smaller than a refractive index of the first material layer and a refractive index of the second material layer.

Abstract: An illumination device includes: a light source which has an emission surface forming area where a plurality of emission surfaces are disposed; a plurality of converging lenses disposed in correspondence with the plural emission surfaces to converge emission lights emitted from the emission surfaces; a first fly-eye lens which divides lights converged by the plural converging lenses into a plurality of partial lights; a second fly-eye lens which converges the plural partial lights; and a condenser lens which stacks the plural partial lights converged by the second fly-eye lens on an illumination receiving area, wherein the plural converging lenses stack the emission lights on the first fly-eye lens.

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: Optical device and optical component part for the targeted reproduction of light emitted by LED light sources (6). The optical device comprises at least two component parts, a first optical component part (10) in the form of a solid waveguide and another component part for connection to the LED light source (6). In a system of Cartesian co-ordinates, the first optical component part (10) has a length in the y direction shorter than or equal to its length in the z direction and shorter than or equal to its length in the x direction. An envelope of the first optical component part (10) projected in an x-y plane forms essentially a rectangle. Proceeding from an x-y plane, the optical component part (10, 10?) tapers in the z direction to maximum ¼ of the largest width measured along y (By, max), with any design of the y-z flanks of the optical component part (10, 10?).

Abstract: A lighting lens can sufficiently suppress unevenness color and improve light use efficiency. This light lens has: first incidence surface 20 that is orthogonal to the optical axis; second incidence surface 21 that expands the radius toward the light emitting element 8 side; total reflection surface 22 that expands the radius toward the emitting side; first emission surface 24 that mainly emits light incident on first incidence surface 21, toward illuminated surface 18; and second emission surface 25 that emits light incident on a second incidence surface, toward illuminated surface 18, and forms second emission surface 25 such that positive power in second emission surface 25 is weaker than positive power of first emission surface 24.

Abstract: An illumination device is provided on a backside of a display panel so as to irradiate a display panel with light, the illumination device including a plurality of rod-like light sources arranged in a planar configuration such that they do not cross each other, and columnar members being respectively provided adjacent to the rod-like light sources, each columnar member including a light incidence plane through which light emitted from a longitudinal direction of the rod-like light sources enters, a first light exit plane arranged to emit the incoming light from the light incidence plane toward the display panel, and a first light reflecting plane arranged to reflect the incoming light from the light incidence plane to the light exit plane. Therefore, with the illumination device applied as a direct backlight, it is possible to reduce luminance unevenness in both a front direction and oblique directions sufficiently, so as to reduce the luminance unevenness of the backlight sufficiently, as a whole.

Abstract: A portable electronic device includes a main body, a camera positioned in the main body, a fill-in light emitting unit positioned in the main body adjacent to the camera, and an optical lens positioned between the fill-in light emitting unit and outside of the main body. The optical lens includes an incident surface facing the fill-in light emitting unit, a light emitting surface opposite to the incident surface, and a plurality of elongated V-shaped ridges formed on the incident surface. The elongated V-shaped ridges are substantially parallel to each other and symmetrical about a central portion of the optical lens. Vertex angles between symmetric elongated V-shaped ridges progressively increase along a direction away from the fill-in light emitting unit.

Abstract: A device having an inner surface with a combination of reflective and refractive surface facets swept about an axis of revolution perpendicular to the optical axis of the device. The outer surface has a non-planar, non-circular, non-spherical shape. This outer surface generates an appropriate intensity distribution in a direction generally parallel to the major axis of the output rectangle and may also distribute energy generally parallelly to the minor axis of the output rectangle as well.

Abstract: An LED module includes an LED and an elongated lens. The lens includes a center axis, a concave incident face, and an opposite convex emitting face. The emitting face includes a portion with a curvature radius at any point along a first plane larger than a distance between the point and the LED, and larger than a curvature radius at a corresponding point of the incident face on the first plane. A curvature radius at any point of the portion of the emitting face along a second plane perpendicularly intersected with the first plane at the center axis is larger than a distance between the point and the LED, while smaller than a curvature radius of a corresponding point at the incident face on the second plane. A radiating angle of the LED module in the first plane is larger than that in the second plane.

Abstract: The present invention relates to an optical element (2) for collimating light from a light source (3), said optical element (2) having an in-coupling side (5) arranged to receive said light, an out-coupling side (6) arranged to allow for emission of collimated light, and an element body extending from said in-coupling side (5) to said out-coupling side (6), the element body having a cross-section perpendicular to an optical axis (z) defined by an x-5 axis and a y-axis being perpendicular to each other, wherein said optical element (2) has an x-curvature along said x-axis and a y-curvature along said y-axis, said y-curvature being greater than said x-curvature, thereby enabling for a light distribution of said collimated light emitted from said out-coupling side (6) to have a cross-section of an asymmetric shape (CE) perpendicular to said optical axis (z). The present invention also relates to a lighting system (1) comprising such an optical element (2).

Abstract: A light source for use in a device, for example in a dental device, comprising a semiconductor element disposed in a housing wherein the semiconductor element comprises a light-emitting surface. The light source further comprises a socket that extends from a side of the semiconductor element opposite the light-emitting surface, the socket being provided for being placed in a frame located in the device, wherein the socket comprises contact elements and lines for power supply to the semiconductor element. The light source is particularly robust and long-lasting.

Abstract: An illumination system includes a coherent light source providing an illumination beam, a light integrator positioned on a transmission path of the illumination beam, and a first actuator connected to the light integrator. The light integrator has a light entering end and a light exit end opposite to the light entering end, and the light entering end faces the coherent light source. The first actuator is capable of driving the light integrator to about a rotation axis perpendicular to a light axis of the illumination beam passing through the light integrator, so as to change a position at the light entering end entered by the illumination beam.

Abstract: An illumination device and a manufacture method thereof are provided. The illumination device includes a base, an illumination chip, and a sealant. The base has a surrounding side wall which encloses a containing space. The illumination chip is disposed within the containing space while the sealant fills the containing space and covers the illumination chip. The sealant has an outer surface which includes a center concave and a circular convex surrounding the center concave. The center concave is formed as a part of a spherical surface with no singular point. The connection between the center concave and the circular convex forms a circular ridge.

Abstract: A light source device and a display device capable of preventing or minimizing occurrence of warpage, bend or distortion in a thin-plate-shaped optical member. A light source device (2) includes a chassis (11), a light source (22) that is disposed on a front side of the chassis (11), an optical member (24) having a thin plate shape that is disposed on a front side of the light source (22) and arranged to control properties of light the light source (22) emits, and a boss (114) that includes a rotation mechanism, is disposed in a protruding manner along a side of the chassis (11) that is a lower side when the thin-plate-shaped optical member (24) is in a normal usage state, and is arranged to support at least one side of the optical member (24) that is a lower side when the optical member (24) is in the normal usage state.

Abstract: A light source module is disclosed. The light source module includes an emitter having a light emitting surface, a solid integrating optic aligned to accept light emitted from the emitter at an entrance face and deliver light to an exit face, and a lens aligned to receive light from the exit face. The lens has a substantially hemispherical portion having a radius of curvature and the exit face of the solid integrating optic has an exit face diagonal. The ratio of the radius of curvature to the exit face diagonal is greater than 0.7. The solid integrating optic and the lens each have an index of refraction, and the ratio of the lens index of refraction to the solid integrating optic index of refraction is greater than unity.

Abstract: The present invention provides A Fresnel lens sheet for use in a luminaire, comprising a transparent sheet having a first surface on one side which is substantially planar and a second surface on the other side; and a Fresnel lens part containing a plurality of concentric convex prisms formed on the second surface, each of the convex prisms having a cross-section of substantially triangular structure, wherein the substantially triangular structure has an apex formed by joining a first curved portion and a second curved portion, and a base; and this triangular structure has a ratio of a radius of the second curved portion to a base width ranging from 0.1 to 0.5. The invention also provides a luminaire utilizing the Fresnel lens sheet of the invention.

Abstract: An optical film is formed with a plurality of optical patterns having peak and valley portions and a lighting device may include such an optical film. Pitches of the optical patterns, heights of the peak portions and depths of the valley portions are irregular, and plan and side structures of the optical patterns have a non-linear non-symmetrical arrangement structure in which the peak and valley portions are irregularly bent. According to an optical film and a lighting device including such an optical film, a moiré phenomenon can be prevented in advance, abrasion resistance can be improved, optical defects such as scratches cannot be observed with the naked eye, a wet-out phenomenon can be prevented, and a viewing angle can be broadened.

Abstract: A lighting system comprising a light engine having at least one light-emitting diode which emits light comprising one or more colors and an optical prism in optical connection with the at least one light-emitting diode, one or more plastic fiber optic cables in optical connection with the optical prism each cable having a proximal end and a distal end and one or more directing optic assemblies connected to the distal ends of the one or more plastic fiber optic cables, wherein the directing optic assemblies spread and direct light from the at least one light-emitting diode.

Abstract: A lighting fixture and method for creating visual effects include a light box having an interior, a reflective inner surface and an opening, a plate covering the opening, a 3-dimentional image on the plate having a first depth, at least one light source disposed in the interior for illuminating the image with evenly spread light. The light source is disposed at a second depth behind the image. A ratio of first to second depths is between 7:7 and 7:21. A plurality of interchangeable plates may be provided with respective 3-dimentional images for creating different effects. A method for creating a distorted image includes preparing a 2-dimensional image, sculpting a 3-dimensional model, vacuum forming and running a 3-dimentional grid, drawing a distorted outline onto a 2-dimentional grid with photo management software, digitally matching and stretching an original image to match the outline and removing the outline leaving the distorted image.

Abstract: A lighting assembly is adapted to be connected to at least one conductive connection hole of an illumination device. The lighting assembly comprises at least one lighting cell and connection mechanism, wherein the lighting cell comprises a base, at least one electrical connector and a lighting unit. The electrical connector and the lighting unit are connected to the base, and electrically connected with each other. The lighting unit has a plurality of lighting circuits linearly arranged thereon, and one end of the connection mechanism is electrically connected to the electrical connector. When the lighting assembly only comprises one lighting cell, the other end of the connection mechanism is connected to the electrode connection hole; while when the lighting assembly comprises a plurality of said lighting cells, the other end of the connection mechanism is selectively connected to the conductive connection hole and the other electrical connector of the neighbor lighting cell.

Abstract: The optical sheet includes a first lens sheet having a plurality of first three-dimensional structures arrayed to extend to one surface thereof, and a reflective polarizer sheet for transmitting either one of p-polarization component and s-polarization component of incident light and reflecting the other of p-polarization component and s-polarization component of the incident light. Head portions of the first three-dimensional structures are bonded to the reflective polarizer sheet.

Abstract: An optical sheet including a fly-eye lens is provided. This optical sheet can exhibit excellent optical functions, including desired light condensing ability, light diffusing ability and ability for rendering a light source image substantially invisible, as well as can be produced with high reproducibility. In one example, the optical sheet (40) includes: a sheet-like main body (45); first unit shaped elements (50) arranged on one surface (46) of the main body and constituting together the fly-eye lens; and second unit shaped elements (55) arranged on the one surface of the main body and extending in parallel with one direction on the sheet surface of the main body. In this case, the first unit shaped elements are arranged, with a space provided therebetween, on the one surface of the main body, while the second unit shaped elements are arranged, between the first unit shaped elements, on the one surface of the main body.

Abstract: The present invention relates to an optical screen for directing light beams comprising a substrate (11) having a first surface (13) particularly for the inlet of light beams (30) and a second surface (12) particularly for the emission of light beams (30), at least one of the surfaces (12, 13) of the substrate (11) being provided with a plurality of protuberances (14) which extend in a direction perpendicular to the substrate (11) and characterized in that the protuberances (14) consist of revolution solids around an axis (A) whose generatrix is defined by at least a first curvilinear section (16) with a concavity facing the inside of the protuberance (14).

Abstract: A device for discreetly illuminating theater programs for reading in a darkened theater, including an elongated generally flat top surface portion having a proximal end and a distal end and a first width and defining a display surface, an elongated generally flat bottom surface portion spaced from the generally flat elongated top surface portion and extending generally parallel to the elongated generally flat top surface portion and having a second width less than the first width, a first side portion extending between the generally flat top and bottom surface portions and disposed substantially perpendicular to the generally flat top and bottom surface portions, a second side portion extending between the generally flat top and bottom surface portions, wherein the generally flat top and bottom surface portions and the first and second side portions define a housing, a generally cylindrical recess formed in the housing, a translucent elongated slit formed in the second side portion and directed away from the

Abstract: A light-directing lensing member for off-axial preferential-side distribution of light from a light emitter having an emitter axis, including a base end with a perimeter-loop line defining a main plane transverse the emitter axis, and an outer surface configured for refracting light from the emitter in a predominantly off-axis direction toward the preferential side. The outer surface includes a major lens-portion and an axially-located minor lens-portion. The major lens portion outer surface has a front region centered on the front side, a back region centered on the back side, and a middle region around the emitter axis and contiguous with the front and back regions. The minor lens-portion has a surrounding-loop surface extending from the middle region transverse the main plane and terminating at an end surface configured to direct substantially axially-parallel light from the emitter in off-axis direction toward the preferential side.