Abstract: A mounting unit includes: a bottom portion having first and second surfaces; a cylinder portion centrally disposed at the bottom portion, protruding from the first or second surface, and having a first screw hole; two abutting walls disposed at edges of the bottom portion edge and extending toward the first surface; two lugs disposed at edges of the bottom portion and extending toward the second surface to connect to different sides thereof, respectively. The lugs each have a second screw hole. An assembly frame using the mounting unit includes: a frame having a T-shaped slot insertable by the lugs; at least a second screwing element and second screw holes of the lugs couple together the mounting unit and the frame; and a screw coupled to the first screw hole of the cylinder portion of the mounting unit. A method of manufacturing a mounting unit is further provided.

Abstract: A clamp apparatus is disclosed that includes a body, first and second actuators, first, second, third and fourth gear sets, first and second movable grippers, and at least one leaf spring. The first gear set is coupled to the first actuator and the second gear set is coupled to the second actuator. The first gear set engages the second gear set. The first and second movable grippers are each operatively coupled to the body. The third gear set is coupled to the first movable gripper and the fourth gear set is coupled to the second movable gripper. The third gear set operatively engages the fourth gear set. The leaf spring engages with the third gear set and the fourth gear set to urge the first movable gripper and the second movable gripper toward a clamped position.

Abstract: A stabilizing device for stabilizing a payload includes a handle assembly, a payload stabilization assembly, and a constant force assembly. The handle assembly includes one or more grips configured to permit a user to support the entirety of the stabilizing device using the one or more grips. The payload stabilization assembly is configured to support the payload and permit the payload to rotate about at least one axis of rotation. The constant force assembly is operably connected to the handle assembly and supports the payload stabilization assembly. The constant force assembly is configured to provide a force that equipoises a gravity force of the payload stabilization assembly with the payload in a vertical direction such that a net force of the payload stabilization assembly with the payload in the vertical direction is substantially zero.

Abstract: A grease tool and method for greasing a dual angular contact bearing where the grease tool is fabricated from a single unitary piece of material. The grease tool comprises a cylindrical hub, a flange supported adjacent only one end of the cylindrical hub, and a grease fitting attached to the grease tool to facilitate a supply of grease thereto. During use, a pair of spaced apart O-rings, accommodated by an exterior surface of the cylindrical hub, form a pair of grease seals with an inwardly facing surface of an inner race of the dual angular contact bearing. A supply passage conveys the supplied grease from the grease fitting to a grease outlet(s) located in an exterior cylindrical surface of the grease tool, between the pair of O-rings, for conveyance of the supplied grease radially to the inner race of the dual angular contact bearing and facilitate repacking thereof.

Abstract: A first embodiment of the disclosure provides a system for detection of intrusion into a working space of a material testing device wherein visual user detection system uses digital image processing and filtering in order to identify user entry into the specimen test space. The visual user detection system has built-in redundancy for safety compliance and further can be used for data entry with respect to test data setup and configuration. A second embodiment of the disclosure uses a digital camera mounted on the frame of the material testing device, oriented toward a striped pattern on the top of the front base cover. The striped pattern is recognized by a vision algorithm which creates virtual boundary lines within the pattern. A detected intrusion, such as by a user body part, will be detected and the material testing machine put into a safe state.

Abstract: A fiber reinforced energetic composite is provided. The fiber reinforced energetic composite includes reinforcing fiber embedded in a cured polymer matrix and energetic polymer nanocomposite disposed in the reinforcing fiber. The energetic polymer nanocomposite including core-shell nanoparticles entrained in a polymer matrix. The core-shell nanoparticles include a core made of a metal and at least one shell layer made of a metal oxide disposed on the core or a core made a metal oxide and at least one shell layer made of a metal disposed on the core. The method of making a fiber reinforced energetic composite is also provided. Further, a composite container made of fiber reinforced energetic composite is further provided.

Abstract: Screen-printable metallization pastes for forming thin oxide tunnel junctions on the back-side surface of solar cells are disclosed. Interdigitated metal contacts can be deposited on the oxide tunnel junctions to provide all-back metal contact to a solar cell.

Abstract: A system for filling an LPG vehicle with LPG using an auxiliary bombe is provided. The system may be configured for easily filling a main bombe with LPG even in the hot season (summertime) or the like during which the outside temperature rapidly rises, by using an auxiliary bombe in addition to using the main bombe. The system may also be capable of always smoothly refilling the main bombe with LPG by moving a portion of the LPG in the main bombe to the auxiliary bombe, when the pressure in the main bombe is higher than the LPG filling pressure of a filling gun in the hot season during which the outside temperature rapidly rises, so that the pressure in the main bombe becomes lower than the filling pressure.

Abstract: A system includes a storage tank storing gas. The storage tank includes a storage tank interface portion made from a first material. The system also includes a nozzle that includes a nozzle interface portion and a first portion. The first portion is made from a second material different from the first material. Additionally, the system includes a connection formed by coupling the storage tank interface portion and the nozzle interface portion to one another, and the connection is configured to maintain a leak rate of the gas equal to or less than 1×10?4 standard cubic centimeters per second (std. cc/s).

Abstract: A remaining-LP-gas display control apparatus includes a consumption obtaining unit that obtains daily gas consumptions in a tank, a consumption predicting unit that predicts future daily gas consumptions for a set number of days such that each future gas consumption is predicted based on the latest gas consumption on the same day of the week included in the gas consumptions obtained by the consumption obtaining unit, a replacement date predicting unit that predicts the amounts of gas remaining in the tank and a date on which the gas remaining in the tank will be used up by using the obtained gas consumptions and the predicted future gas consumptions, and a display control unit that controls a display unit to display an image in which remaining-gas information is superimposed on a location where the tank is placed by using the predicted date and location information.

Abstract: A mount is configured for attachment to a neck of a pressure vessel that has a substantially cylindrical body having a diameter. The mount includes a central plate, first and second flanges, first and second vibration isolators, and a retainer. The central plate has a height and width, both of which are approximately equal to or less than the diameter, and an aperture. The first and second flanges are located at opposed first and second sides of the central plate, respectively, are oriented substantially perpendicular to the central plate, and are configured to extend toward the body. The first vibration isolator is configured for attachment to the first flange. The second vibration isolator is configured for attachment to the second flange. The retainer is configured for attachment proximate the aperture and is configured to accept a portion of the neck.

Abstract: A lighting apparatus comprises: a board, a plurality of light-emitting units disposed on the board, and a package structure enclosing all of the light-emitting units and having a volume less than 5000 mm3. The lighting apparatus has a light intensity greater than 150 lumens.

Abstract: A method of installing a light emitting diode light bar into a bulb is provided. Place the light bar module into the light bulb shell. The light bar module has a plurality of light emitting diode light bars and an expansion structure. The expansion structure is not expanded and is disposed among multiple light emitting diode light bars. Each light emitting diode light bar has a certain degree of flexibility. Expanding the expansion structure then, therefore multiple light emitting diode light bars are individually bent and deformed toward the bulb shell direction. Next, remove the expansion module and install other components of the bulb.

Abstract: Disclosed is a SSL lamp that includes three or more elongated light emitting structures. A respective first end of each of the three or more elongated light emitting structures are arranged such that they define a first polygon. A portion of each of the three or more elongated light emitting structures are arranged in vicinity of each other such that the three or more elongated light emitting structures crosses each other at a smallest angle of at least 30 degrees, thereby forming a common neck.

Abstract: A light bulb apparatus includes a head cup, a bottom support, multiple light strips and a bulb shell. The head cup is connected to an external power source. The bottom support is extended from the head cup. Each light strip has a top end and a bottom end. The bottom ends of the light strips are connected to the bottom support. The top ends of the light strips form a top polygonal shape and the bottom ends of the light strips form a bottom polygonal shape. The bottom polygonal shape has a bigger area size than the top polygonal shape. Each light strip has a skewed angle with respect to a middle axis perpendicular to the bottom shape.

Abstract: An LED light bulb with integrated power supply, and which may incorporate integrated communications and processing functions. The LED light bulb is designed to be efficiently manufactured in mass quantities using automated assembly techniques, and is constructed to exhibit the spatial light pattern of a regular incandescent bulb as closely as possible. Where communications and processing functions are integrated, the LED light bulb is able to communicate via wireless communications to a mobile phone, notebook, tablet, or other computing device.

Abstract: An LED tube lamp comprises a lamp tube, two end caps attached at two ends of the lamp tube respectively, a power supply disposed in one of the two end caps or separately in both of the end caps, an LED light strip disposed inside the lamp tube and a protective layer disposed on the LED light strip. The LED light strip comprises a mounting region and a connecting region. The plurality of LED light sources is mounted on the mounting region and two soldering pads are disposed on the connecting region. The mounting region and the connecting region are electrically connecting the plurality of LED light sources with the power supply. The protective layer comprises a plurality of first openings arranged on the mounting region for accommodating the LED light sources and two second openings are arranged on the connecting region for accommodating the two soldering pad.

Abstract: A modular power manifold for a tube light may feature LED strips mounted in a support extrusion. A cover is provided as are two end caps with modular connectors which allow use in multiple settings. A power interface may also be provided to supply auxiliary power to additional loads.

Abstract: The invention relates to a luminaire and a lighting system. The luminaire includes first and second light sources adapted to emit light beams of two different beam patterns encompassed within a single chamber with specular outer walls that are parallel to the optical axis of the beam patterns of both types of light sources. Employing a chamber having specular outer walls aligned with the optical axis of the beam patterns of both types of light sources and adapted to specularly reflect at least a portion of light incident thereon allows more uniform appearance of the luminaire while preserving the respective total beam patterns of the beams produced by the first and second light sources as the light beams are incident on the exit window of the chamber.

Abstract: An optical component includes: a light transmissive member having an upper face, a lower face, and at least one lateral face; and a light reflecting member that surrounds the at least one lateral face of the light transmissive member, wherein the light reflecting member is made of a ceramic that contains a plurality of pores, and wherein the plurality of pores are localized in a vicinity of the light transmissive member in a cross section that extends through the light transmissive member and the light reflecting member.

Abstract: An illumination system can include a flashlight removable from a headlamp docking base with a C-shaped bracket. The flashlight can have a bifurcated body defined by a shaft and a bar each attached to a lateral side of a head and spaced apart from one another to define a slot. The shaft can define a battery housing. A first light source on a front side of the head and a second light source on the bar may each be on a front face of the flashlight. The flashlight may be selectively secured among different structures by selectively performing actions including at least: mounting the flashlight to the base by inserting the shaft of the flashlight into the C-shaped bracket of the base; and mounting the flashlight to a substrate by sliding the slot of the flashlight over an edge of the substrate.

Abstract: The embodiments disclose a lighting device configured for projecting at least a 180 degree halo of light using at least one component module having a LED/lens light pod module, a mount configured for a user to wear the lighting device on a user's hand, at least one external battery pack and a navigation light device with the lighting device, wherein the lighting device and the navigation light device are configured to project a 360 degree light pattern and at least one sensor configured to automatically activate a front LED/lens light pod module when the user raises and points a hand to gain a predetermined distance forward focused beam in a pointing direction, wherein the at least one sensor activates left and right side LED/lens light pod modules for projecting a light pattern to a front and rear direction when the user's arm is at one's side.

Abstract: A modular light fixture has interchangeable assemblies for a top-mount configuration and a bottom-mount configuration. The cage, lens, and roof are the assemblies that can all be interchanged between the different mounting configurations. Each one of these assemblies has the same geometrical shape in the top-mount configuration and in the bottom-mount configuration. The cage has an upper collar, a lower collar, and side rails that connect the collars. The lens is a single-piece shell that is formed in either a prismatic shape or a cylindrical shape. The roof slopes downward from a center section to an outer section. The top-mount bracket assembly for the top-mount configuration is a single-piece injection-mold plastic part which can be produced with an arm extending from a wall panel and without any finial.

Abstract: The present invention provides a LED light strip, wherein the light strip comprises an outer casing, an inner casing disposed in the outer casing and a light-emitting component placed in the inner casing, the light-emitting component comprises a substrate and some LED illuminant modules set on the substrate, the inner casing is provided with a light exit through which the light of the LED illuminant directly passes, cut marks are arranged in a position between the light exits corresponding to a interval of LED illuminant modules connected in parallel, and a wall of the outer casing facing the LED illuminant is transparent. The cut mark of the present invention is easily seen and a user can see the cut mark trough the transparent wall directly thus facilitating the cutting.

Abstract: An LED light fixture is disclosed with an elongated housing that forms a open lower light channel and an upper light channel that is juxtaposed to the open lower light channel with electronics cavity or conduit positioned there between. The open lower light channel includes elongated LED light engines positioned on support edges or structures for emitting indicted and reflected light out from the open lower light channel and the upper light channel includes an elongated LED light engine for emitting light therefrom. The LED light fixture preferably has an elongated reflective insert that extends through the open lower light channel and creates a reflection channel from which the indirect and reflected light is emitted.

Abstract: A light fixture includes a housing having sidewalls that define a manifold aperture, extending from upper to lower edges of the manifold aperture. The housing includes first coupling features. The light fixture includes at least one adapter plate with second coupling features that removably couple with the first coupling features. The adapter plate defines an adapter plate aperture. At least one light emitting engine removably couples with the adapter plate such that emitted light passes through the adapter plate aperture. The light fixture further includes a baffle that includes at least one baffle cell. The baffle cell includes an upper baffle edge that defines: an upper baffle aperture through which light emitted by the light engine passes, a lower baffle edge that defines an output aperture for the emitted light, and a baffle cell wall that extends from the upper baffle edge to the lower baffle edge.

Abstract: A lamp has a carrier device and at least one lighting device mounted on the carrier device. The at least one lighting device has a carrier part, a plurality of lighting units which are arranged on a lateral wall of the carrier part, and a reflector device fastened to the carrier part. The reflector device has at least two reflector portions at a distance from one another in a longitudinal direction, which are each formed by reflector surfaces which are concavely curved in at least two curvature directions, wherein the at least two reflector portions are oriented facing the lateral wall of the carrier part, and wherein in each case one lighting unit is assigned in each case to one of the at least two reflector portions.

Abstract: A flame lamp comprises a light module. An example light module comprises a circuit board having a first side and a second side and defining a module axis; and a plurality of light emitting diode (LED) packages. At least one LED package is mounted to each of the first and second side of the circuit board. The example light module further comprises an optical sleeve. The circuit board is mounted within the optical sleeve. The optical sleeve comprises a plurality of optical columns each having a light emitting surface. Each light emitting surface has a profile such that one or more profiles of one or more light emitting surfaces define an ellipse in a cross-section of the light module taken perpendicular to the module axis.

Abstract: An interior rotating structure of a handicraft lantern comprises a lantern bracket, a transparent container, a sealed rotary mechanism, a mounting frame, a rear cover, and a motor body. The transparent container is fixed under the lantern bracket and the sealed rotary mechanism is inserted under the transparent container. The mounting frame is under the sealed rotary mechanism. A container sealing cover is installed in the sealed rotary mechanism, while a central impeller is mounted on the container sealing cover. The rotating structure includes a rotating gear and a shaft magnet on the motor shaft, so that the rotating gear drives a large inner ring gear to spin through multi-step transmission of a reduction gear set. The inner ring gear drives an impeller rotating bracket to rotate through the magnets, in such a way that the rotating bracket can agitate the liquid when the central impeller revolves at the same time.

Abstract: A system of lenses for projecting at least one light source includes from the source and in the direction of propagation of the light, at least one first group of optical elements made up of at least one first convergent lens called primary lens, in contact with said light source, obtained from a material exhibiting a high constringence and exhibiting a ratio between its thickness along the optical axis and its width greater than 0.5. Also included in said direction of propagation is a second group of optical elements made up of at least one divergent lens obtained from a material exhibiting a low constringence, a pupil, and a third group of optical elements made up of a reflector or of at least one convergent lens obtained from a material exhibiting a high constringence.

Abstract: A phosphor module for a laser light source includes a heat radiator, a phosphor layer disposed at the heat radiator to absorb and emit light, in which a wavelength of the emitted light is different from a wavelength of the absorbed light, and a reflective layer disposed on a surface of the phosphor layer and configured to reflect light. The phosphor layer includes a protrusion portion that protrudes from the surface of the phosphor layer and that extends through the reflective layer.

Abstract: A housing for a printed circuit board for a lighting device for a motor vehicle. The housing includes a protective cover designed to be arranged on a heat sink, the heat sink being designed to receive the printed circuit board, a primary seal arranged between the protective cover and the heat sink close to the perimeter of the heat sink, and a protection device for the primary seal.

Abstract: A vehicle lamp device includes a housing with first and second seating portions in a first end portion thereof, the second seating portion including a surface at a higher plane than the first seating portion, a light source module substrate on the second seating portion with at least one light source, a driving module substrate on the first seating portion with at least one driving element, a bracket combined with the first end portion of the housing, the bracket covering the light source module substrate and the driving module substrate, and having an opening exposing the at least one light source, and at least one connection terminal extending from the first seating portion to the second seating portion along an inner surface of the bracket, the at least one connection terminal electrically connecting the light source module substrate and the driving module substrate.

Abstract: A vehicle lamp comprises a first light source group for forward illumination comprising at least one light emitting element, a second light source group for road surface drawing comprising at least one light emitting element provided separately from the at least one light emitting element, a single projection lens through which lights emitted from the first and second light source groups are to pass, and a light shade arranged between the first and second light source groups and the projection lens so that the light from the first light source group and the light from the second light source group do not intersect with each other before entering the projection lens. The projection lens has a first region through which the light from the first light source group is to pass and a second region through which the light from the second light source group is to pass.

Abstract: The present invention relates to improved light bar cover for LED light bars. The presently disclosed light bar covers may cover the full circumference and length of a light bar and may include a multi-functional tool for easing the installation or removal. While installed, the light bar cover protects the light bar from various damages such as debris or the elements. The multi-function tool may be used to assist in the removal and installation of the cover when mounted in hard to access location. In various embodiments the multi-function tool may be used to deploy the cover, provide rigidity to the cover, and/or actuate a fastener for the cover.

Abstract: An optical unit includes a light source and a rotary reflector configured to reflect a light emitted from the light source and rotate around a rotation axis in one direction. The rotary reflector is provided with a reflective surface such that a desired light distribution pattern is formed by scanning a light of a light source reflected by the rotary reflector while the rotary reflector is rotated. The light source includes a first light-emitting portion configured to be turned on when forming a first light distribution pattern that mainly illuminates a range lower than a horizontal line, and a second light-emitting portion configured to be turned on when forming a second light distribution pattern that illuminates a range at least higher than the horizontal line.

Abstract: An illumination device includes a light source, a micromirror array having micromirror actuators, switchable in each case between an on state and an off state, an optical unit, and an optical sensor unit. The light is guided onto the array and proportionally at a respective one of the actuators in an on tilt position is reflected to an illumination application, and in an off tilt position is reflected to the optical sensor unit. The device is configured such that a first actuator, which is in an on state in the on tilt position, is brought to the off tilt position for a first test interval, and a second actuator, which is in an off state in the off tilt position, remains in the off tilt position for the first test interval. A radiation power incident on the sensor unit during the first test interval is detected by the sensor unit.

Abstract: An electrical device for a vehicle includes a housing having an upper portion and a lower portion. An upper light source attaches to the upper portion and a light guiding element attaches to the upper portion to receive the upper light from the upper light source and direct outgoing light in a substantially uniform direction. A display attaches to the upper portion to receive the outgoing light for illumination of the display. A lower member couples with the lower portion. A lower light source attaches to the lower member. A collimator attaches to the lower member to receive incoming light from the lower light source and change directions of the incoming light to a collimated beam. A lens element attaches to the lower portion to direct the collimated beam at a target.

Abstract: In an automotive lighting apparatus lighting components generate respective light fields. The lighting components are aligned one with the others such that the light fields combine in a lighting profile having cutoff regions meeting a predetermined cutoff criterion. An actuator is mechanically coupled to a corresponding one of the lighting components to aim that lighting component in a direction other than that in which the lighting component was aligned. A control component operate the actuator to aim the lighting component in the direction other than that in which the lighting component was aligned so that the light fields of the lighting components combine in another lighting profile having cutoff regions meeting another cutoff criterion.

Abstract: The invention relates to a method for controlling a laser illumination device for a motor vehicle headlight, wherein the laser illumination device comprises two or more adjustable laser light sources (11 to 18), wherein the number of laser light sources is designated as N, and each laser light source generates a laser beam (11p to 18p) and at least one optical attachment (21 to 28) is arranged downstream of each laser light source and at least one microscanner (51, 52) is assigned, and each microscanner is arranged to guide two or more laser beams onto at least one light conversion means (60), wherein on the at least one light conversion means a luminous image is produced, and an imaging system (PS) is associated with the at least one light conversion means in order to project the luminous image as a light image onto the road, wherein the method includes the following steps: dividing at least a part of the luminous image into luminous strips, wherein the number of luminous strips is designated as n, determini

Abstract: A device including at least one semiconductor component connected to an electrical connection element, the electrical connection element is attached to a heat sink and connected to a group of electrical wires, the group being linked mechanically and electrically to the electrical connection element by a single connector, the group being linked to the heat sink by holding means.

Abstract: A lighting module used in a motor vehicle. The lighting module includes a housing and a light source assembly provided in the housing, wherein at least one thermal baffle is provided beside the light source assembly, and a thermal resistant layer is provided on at least one portion of the thermal baffle. The present utility model also provides a motor vehicle including the lighting module. The lighting module and the motor vehicle of the present utility model can reduce high temperature damage, and can have a low cost and a compact structure.

Abstract: A light emitting module includes a laser element and a first transistor including a first electrode connected to the laser element, a second electrode connected to a power supply, and a control electrode. A second transistor includes a first electrode connected to a second reference potential via a first resistor, a second electrode connected to a first reference potential, and a control electrode. The control electrode of the first transistor is connected to the first electrode of the second transistor and the first resistor. A conversion member is to convert a laser beam emitted by the laser element and includes a sensing wire via which the control electrode of the second transistor is connected to a third reference potential. The control electrode of the second transistor is connected to a fourth reference potential via a second resistor.

Abstract: A tunable luminaire includes a laser light source and at least two different holograms. A beam of light is selectively directed from the laser light source to a first hologram in a first state of the luminaire to enable the luminaire to output light of a first characteristic. A beam of light is selectively directed from the laser light source to a second hologram in a second state of the luminaire to enable the luminaire to output light of a different second characteristic. For example, in the different states, different patterns of light from the holograms pass through and pump different photoluminescent materials, to produce luminaire light outputs in the different states having a different color characteristic. In other examples, in the different states, different patterns of light from the holograms pass through different elements or portions of an optical system to provide light outputs having different distributions.

Abstract: A lighting device includes a lens, a primary light source and multiple secondary light sources positioned about a perimeter of the lens. Each of the secondary light sources is configured to produce a sparkling effect.

Abstract: A light-emitting device includes a lens of refractive index n having a spherical exit surface of radius R and a luminous element positioned such that at least a portion of an edge of an emitting surface of the luminous element lies on a sphere of radius R/n opposite the exit surface, whereby that portion of the edge of the emitting surface is aplanatically imaged by the spherical exit surface. The light-emitting device may further include one or more reflective sidewalls arranged to reflect a fraction of light emitted from the luminous element before it is refracted by the exit surface. A luminaire incorporating a housing and a light-emitting device of this type is also provided, which may include one or more additional optical elements such as reflectors or lenses to further direct and shape light from the light-emitting device.

Abstract: A downlight fixture includes an optic housing, a light-emitting diode (LED) array, and a lens-less reflector. The LED array emits directional light rays in a downward direction towards an illuminated target. The reflector is mounted within the optic housing and adjacent to the LED array. The reflector has a hyperbolic wall continuously extending between a narrow neck and a wide bell. The light rays are spread into a light beam within the reflector upon making contact solely with the hyperbolic wall.

Abstract: A lighting system (1) for in particular forming a room edge (12) of a room comprises an enlarged sky-perception providing unit (2) with a light transparent panel (3) and a mirror unit (13) with a reflective face (13A) forming an inner edge (14), the lighting system further comprises a light source (41) configured to emit a direct light beam (43) through the light transparent panel (3) onto the mirror unit (13) such that the transmitted portion (9) of the light beam is reflected completely by the reflective face (13A), thereby creating a reflected direct light beam (17) in particular for imitating a sun beam.

Abstract: The present invention provides an optically active structure and the use thereof in a backlight unit. The optically active structure comprises a plurality of optically active particles configured to emit light of one or more predetermined wavelength range in response to pumping energy, and a plurality of light scattering elements. The plurality of light scattering elements comprises optically transparent void regions, such as void regions surrounding filler particles.

Abstract: A wavelength conversion member having quantum dots is provided. The wavelength conversion member includes a quantum dot layer including quantum dots, and an organic film on a surface of the quantum dot layer. The quantum dot layer includes a first layer disposed on a first side of the wavelength conversion member that is closest to a light emitting device or on a light input surface side, and a second layer disposed on a second side of the wavelength conversion member that is farthest from the light emitting device or on a light output surface side. A light scattering agent is included in the first layer and the second layer. The quantum dots are not included in the first layer and are included in the second layer.