Abstract: A phosphor element includes a phosphor part including an incident face of the excitation light, opposing face opposing the incident face, and side face, the phosphor part converting at least a part of the excitation light incident onto the incident face to fluorescence and emitting the fluorescence from the opposing face or incident face, and a heat dissipating substrate provided on the side face of the phosphor part. The heat dissipating substrate is composed of a metal plating film composed of a metal having a thermal conductivity of 200 W/mK or higher.

Abstract: The present invention embodiment provides a backlight module and a display module. The backlight module includes a light emitting assembly, a color conversion layer, and a reflection function layer. The reflection function layer at least includes a first sublayer and a second sublayer. A refractive index of the first sublayer is less than a refractive index of the second sublayer. A light emitted by the color conversion layer to the reflection function layer includes a first light. A product of a thickness of the first sublayer and the refractive index of the first sublayer is equal to an integer multiple of a half wavelength of first light.

Abstract: A light emitting device includes first and second semiconductor laser elements, first and second light-reflective members, and a basal part. The light emitted from the first semiconductor laser element irradiates a first light-reflective surface of the first light-reflective member at a first position. The light emitted from the second semiconductor laser element irradiates a second light-reflective surface of the second light-reflective member at a second position. A height of the first position is different from a height of the second position. With respect to a virtual axis extending along the prescribed direction, the first position and the second position have the same coordinates. A mounting position of the first light-reflective member and a mounting position of the second light-reflective member are different with respect to the prescribed direction.

Abstract: The invention provides a light generating system (1000) comprising a light generating device (100), a luminescent body (200), and first optics (410), wherein: •the light generating device (100) is configured to generate device light (101); wherein the light generating device (100) comprises a laser; •the luminescent body (200) comprises a luminescent material (210), wherein the luminescent material (210) is configured to convert at least part of the device light (101) into luminescent material light (211), and wherein the luminescent body (200) is transmissive for at least part of the luminescent material light (211); •the first optics (410) are transmissive for at least part of the device light (101) and reflective for at least part of the luminescent material light (211), wherein the first optics (410) comprise a primary optic surface (411) having a first surface area A1, wherein the primary optic surface (411) is configured in a light receiving relationship with the light generating device (100); •the lumi

Abstract: Optics for a transmission and/or reception element configured to emit and/or receive a signal in a main radiation direction has an optical body formed of a material optically transparent for the communication wavelength. It has a cavity within which the transmission/reception element is arranged, wherein a first interface is formed between the cavity and the optical body. Furthermore, the optical body has a second interface formed opposite the cavity and a lateral interface having a total internal reflection region. The first interface forms a first central lens region and a first refraction region surrounding the first central lens region. The second interface forms a second central lens region and a second refraction region surrounding the second central lens region. All the surfaces or areas described are defined to be freeform areas so that they can exhibit any shape. In addition, it is conceivable to introduce Fresnel patterns in the surfaces.

Abstract: An assembly includes a mounting bracket that defines one or more mounting bracket holes, one or more fasteners configured to secure the mounting bracket to an archery bow via the one or more mounting bracket holes, and a light source coupled to the mounting bracket and configured to illuminate a distance marker tape of the archery bow. The distance marker tape light assembly can be used to illuminate distance marker tape on a variety of archery bows. The distance marker tape light assembly can be considered a universal distance marker tape light assembly due to the large number of different archery bows on which the distance maker light assembly can be effective.

Abstract: A lighting system includes a projection surface and a lighting device that projects a projection pattern on the projection surface and includes a light source emitting coherent light and a diffractive optical element diffracting the coherent light to form the projection pattern and including fundamental pieces of diffractive optical element two-dimensionally arranged in a direction parallel to the projection surface. A fundamental period of spatial resolution r (on the projection surface and determined from a specified spatial resolution of the projection pattern at an intersection position of a perpendicular line drawn from a center of certain one of the fundamental pieces of diffractive optical element with respect to the projection surface), an angle ? (a half of an angle projecting the fundamental piece of diffractive optical element at the position), and a wavelength ? of light in the projection pattern projected at the position) satisfy sin ?>?/(6r).

Abstract: An elastic resin sheet that is a resin sheet formed using a resin composition containing a thermosetting resin and a curing agent, in which when a maximum height of a surface roughness on a first surface of the resin sheet is Rz1 (?m), a maximum height of a surface roughness on a second surface facing the first surface is Rz2 (?m), and a thickness is t (?m), the Rz1, the Rz2, and the thickness t (?m) satisfy relation of the following Formula (1): (Rz1+Rz2)/t?0.5 (1), the elastic resin sheet includes a light-diffusing portion having irregularities with an arithmetic mean roughness Ra of 0.3 ?m or more and 5.0 ?m or less on at least one of the first surface and the second surface, and the elastic resin sheet has an initial tensile modulus of 0.5 MPa or more and 500 MPa or less.

Abstract: A device for illuminating a motif region, comprising a reflector screen that comprises at least one reflection element, wherein the device includes at least one lighting means comprising at least one LED lamp, in particular a plurality of LED lamps, for illuminating a motif region, at least in portions.

Abstract: Light (light (L1)) at peak luminous intensity in a light distribution of a first region (12a) of a light-irradiating surface (12) is sent to a first region (32a) of a target surface (32) via a first region (22a) of a reflecting surface (22). Light (light (L2)) at peak luminous intensity in a light distribution in a second region (12b) of the light-irradiating surface (12) is sent to a second region (32b) of the target surface (32) via a second region (22b) of the reflecting surface (22). An optical distance from the first region (12a) of the light-irradiating surface (12) to the first region (32a) of the target surface (32) via the first region (22a) of the reflecting surface (22) is greater than an optical distance from the second region (12b) of the light-irradiating surface (12) to the second region (32b) of the target surface (32) via the second region (22b) of the reflecting surface (22). The luminous intensity of the light (L1) is higher than the luminous intensity of the light (L2).

Abstract: A light source unit and a display device that are further thinned while evenness in brightness on an emission surface is secured are provided. A light source unit and a display device of the present invention include a light source installation surface on which at least one micro light source is installed, a first light scattering body that includes a base which is arranged with the light source installation surface and has a light-transmitting property, and a reflection pattern which is formed on a first surface of the base positioned on a light source installation surface side based on light distribution characteristics of the at least one micro light source, and a second light scattering body that is arranged between the first light scattering body and the at least one micro light source.

Abstract: Display module and display device are provided. The display module includes: a display panel; a backlight module; a through hole; a first optical film, and a light-filling component. An orthographic projection of the first optical film on the display panel is located inside an orthographic projection of the through hole on the display panel. The first optical film is provided with a first microstructure on a side facing the light-filling component, and further includes a first hollowed portion penetrating through the first optical film along the direction perpendicular to the light-exiting surface of the display panel. Light emitted by the light-filling component at least partially enters the first hollowed portion through the first optical film, and is transmitted to the display panel. The first microstructure includes a plurality of annular substructures, and a center of each of the plurality of annular substructures is located in the first hollowed portion.

Abstract: A light source apparatus includes a first light source that includes a plurality of first light emitters arranged in a row along a first direction and emits a first luminous flux, a second light source that includes a plurality of second light emitters arranged in a row along a second direction and emits a second luminous flux in a direction in which the first luminous flux is emitted, and a combiner that combines the first and second luminous fluxes with each other to produce combined light and outputs the combined light to an irradiated region. The combined light has a combined light intensity distribution in which a first region where a light intensity of the first luminous flux is maximized and a second region where a light intensity of the second luminous flux is maximized do not overlap with each other.

Abstract: A lighting assembly includes a light transmissive substrate extending along a length and including a light emission portion including opposed first and second major surfaces spaced apart from one another in a thickness direction, an inner edge surface extending between the first and second major surfaces in the thickness direction, and an outer edge surface opposed the inner edge surface and extending in the thickness direction. An extension portion extends from the light emission portion proximate the second major surface in the thickness direction. A light source is attached to the extension portion. A light head includes a housing, a primary light source attached to the housing, and the lighting assembly as an auxiliary lighting assembly. The housing includes a channel in which the auxiliary lighting assembly is retained.

Abstract: Ambient lighting system (3) for motorcars (2) comprising: an optical system (4) comprising: RGB LED light sources (41); a structural support (40) on which said light sources (41) are placed; a diffusive module (42) adapted to diffuse light rays. The ambient lighting system (3) comprising a capacitive touch sensor (6), the latter being locally integrated in the ambient lighting system (3); and light guide modules (43), interposed between the light sources (41) and said diffusive module (42), and being adapted to guide light rays emitted by the light sources (41) and being designed to isolate the light rays emitted by each light guide module (43), in order to realize sectors (C) adapted to be illuminated with sharp contrast with the rest of the ambient lighting system (3), defining the position of at least one soft button (B), the latter being realized by means of the capacitive touch sensor (6).

Abstract: A light-emitting module includes a light-emitting plate including a light-irradiating surface including a plurality of striped-pattern light-emitting units, and a reflecting member including a reflecting surface to reflect light emitted from the light-irradiating surface of the light-emitting plate toward a target surface of an object. Light at a peak luminous intensity in a light distribution in a first region of the light-irradiating surface is sent to a first region of the target surface via a first region of the reflecting surface. Light at a peak luminous intensity in a light distribution in a second region of the light-irradiating surface is sent to a second region of the target surface via a second region of the reflecting surface.

Abstract: A light source module includes a ring light guide, at least one light source, a reflector, and a diffuser. The ring light guide includes a ring body and at least one light incident portion. The ring light guide has a light exit surface and a bottom surface, which are two opposite ring surfaces of the ring body. The ring body has a plurality of optical structures disposed along the ring body. The at least one light incident portion is disposed on the ring body and protrudes from a lateral side of the ring body. The light incident portion has a light incident surface, wherein a plane where the light incident surface lies crosses a plane where the light exit surface lies.

Abstract: An input face of a lens includes an upper portion configured to divert the light rays so that they are substantially parallel to the horizontal midplane (P2), and a lower portion configured to reduce the vertical opening angle (?) of the light beam, according to the vertical axis (Z). The output face of the lens includes a central vertical portion substantially planar and orthogonal to the optical axis. On either side of the central vertical portion, a lateral portion is configured to divert each light ray in the direction of the vertical midplane (P1), according to an amplitude of deflection that is even larger as the point of incidence of the light ray on said lateral portion is close to the vertical midplane (P1).

Abstract: According to one embodiment, a display device includes a display panel, a backlight device including a plurality of light sources, to irradiate light to the display panel, and an optical element provided on an emission side of the display panel and inclined with respect to a direction perpendicular to an optical axis of the display panel.

Abstract: In an embodiment, a luminaire includes a housing with a reflector. A rail is positioned near the reflector and has a light thereon which is configured to emit light into the reflector. The light is reflected from the reflector and passes through a diffuser that can act to ensure the emitted light is desirably defuse. In an embodiment, the diffuser can be removed from the housing for service or replacement.

Abstract: A light emission device according to the present disclosure includes: a collimated light source; a planoconvex lens having a flat surface and a convex curved surface, the planoconvex lens being configured to converge collimated light that is emitted from the collimated light source to form a convergent beam; an optical member configured to be irradiated with the convergent beam; and a housing in which the planoconvex lens is housed. The housing includes a lid configured to support the optical member, the lid having a through hole for allowing the convergent beam to pass through. The lid is in contact with at least a portion of the flat surface of the planoconvex lens.

Abstract: A recessed lighting installation assembly includes a junction box having a cavity to contain a lighting system together with electrical wires from an electrical system of a building for connection to the lighting system. The assembly also includes a plurality of telescoping hangar bars coupled to the junction box to hold the junction box in a gap between a plurality of beams in the building. Each telescoping hangar bar is extendible and/or retractable to vary a length of the bar between the plurality of beams to meet the gap between the plurality of beams. A position of the junction box is adjustable along the length of each telescoping hangar bar between the plurality of beams. In one example, the recessed lighting installation assembly does not include a can, separate from the junction box, to contain the lighting system.

Abstract: A head-up display including a display element illuminated by a plurality of light emitting elements. A lenslet is between a TIR lens array and the display element. The lenslet includes a first side facing the display element and a second side facing the TIR lens array. At least one of the first side and the second side includes a plurality of horizontal lenses or a plurality of vertical lenses configured to evenly distribute light from the TIR lens array across an eyebox generated by the head-up display and balance luminous uniformity and luminous intensity across the eyebox.

Abstract: A head-up display including a display element illuminated by a plurality of light emitting elements. A lenslet is between a TIR lens array and the display element. The lenslet includes a first side facing the display element and a second side facing the TIR lens array. At least one of the first side and the second side includes a plurality of horizontal lenses or a plurality of vertical lenses configured to evenly distribute light from the TIR lens array across an eyebox generated by the head-up display and balance luminous uniformity and luminous intensity across the eyebox.

Abstract: A light emitting module according to one embodiment of the present disclosure includes a lightguide plate having an upper surface in which a first hole is defined, and a lower surface opposite to the upper surface; and a light emitting element on a lower surface side of the lightguide plate, the light emitting element facing the first hole. The upper surface of the lightguide plate includes a first region defining a plurality of protrusions and/or recesses. A ratio of an area occupied by the plurality of protrusions and/or recesses per unit area in a plan view increases concentrically in an outward direction from the light emitting element.

Abstract: Recycling backlights are described. More specifically, recycling backlights including structured reflectors are described. The structured reflector redirects light at least for angles emitted from a lightguide and retroreflects other light, the retroreflected light having incidence angles not emitted by the lightguide.

Abstract: A lighting device includes a light source and a photoconversion layer including a perovskite compound represented by Formula 1. The perovskite compound absorbs at least part of light emitted from the light source and emits light having a different wavelength range from the absorbed light: [A][B][X]3??<Formula 1> In Formula 1, A is at least one monovalent organic cation, at least one a monovalent inorganic cation, or any combination thereof, B is at least one divalent inorganic cation, and X is at least one monovalent anion.

Abstract: The present invention relates to the technical field of vehicle lamps, and in particular, to a vehicle lamp illuminating apparatus, a vehicle lamp assembly comprising the vehicle lamp illuminating apparatus, and a vehicle comprising the vehicle lamp assembly. The vehicle lamp illuminating apparatus comprises a lens, a reflection structure, a plurality of light emitting diode (LED) light sources distributed in an array and arranged in an upper row and a lower row along a transverse direction, and a circuit board connected to the plurality of LED light sources, wherein the reflection structure comprises a plurality of reflection mirror sets each disposed in one-to-one correspondence with two LED light sources that are vertically opposite to each other, the reflection mirror set comprises an upper reflection mirror corresponding to the LED light source in the upper row and a lower reflection mirror corresponding to the LED light source in the lower row.

Abstract: Systems, devices, and methods for optical engines and laser projectors that are well-suited for use in wearable heads-up displays (WHUDs) are described. Generally, the optical engines of the present disclosure integrate a plurality of laser diodes (e.g., 3 laser diodes, 4 laser diodes) within a single, hermetically or partially hermetically sealed, encapsulated package. The optical engines include an optical director element that includes a curved reflective surface (e.g., parabolic cylinder) that redirects laser light beams and collimates the same along the fast axes thereof. Such optical engines may have various advantages over existing designs including, for example, smaller volumes, better manufacturability, faster modulation speed, etc. WHUDs that employ such optical engines and laser projectors are also described.

Abstract: A backlight module including a light source, a reflector, a chamber, and a block plate is provided. The light source has at least one light unit arranged along a first direction. The reflector extends along the first direction and a curve opposite the light unit is formed on a cross section perpendicular to the first direction. The reflector has a first end and a second end opposite to each other. The first end extends toward the light source while the second end forms a light exit with the light source. The chamber has a light entrance end facing the light exit to receive light reflected by the reflector. The block plate is disposed between the light unit and a light-receiving surface of the chamber to reduce the light directly reflected to the light-receiving surface of the chamber by the reflector.

Abstract: A tonneau cover assembly includes at a luminescent layer that emits visible light responsive to exposure to light, a top clear layer above the luminescent layer, and a bottom clear layer below the luminescent layer. The luminescent layer illuminates a portion of a cargo area covered by the tonneau cover.

Abstract: A lamp assembly includes an outer lens, a lamp housing connected to the outer lens, a projector assembly having a projector lens, a lighting source, and an anisotropic heat spreader. The lighting source is adjacent to and partially within the projector assembly, and has a printed circuit board (PCB) connected to one or more light-emitting diodes, each emitting the light. The heat spreader, for instance a sheet of polycrystalline graphite, is connected to the PCB and extends beyond a surface area of the PCB into a lamp cavity. The heat spreader is configured to direct heat away from an LED junction toward a predetermined lower temperature zone of the lamp cavity. A vehicle includes a body and the lamp assembly.

Abstract: A light module for a vehicle may include a light source generating light, a variable mirror generating an image depending on the light by reflecting the light generated by the light source, and an optical receiving the light reflected by the variable mirror, the optical having a continuously curved shape in a left-and-right direction for light introduced into a center of the optical to be condensed and moved and light introduced into a side of the optical to be diffused and moved.

Abstract: A backlight module including a back board, a reflector, at least one light source, at least one lens unit, and a light leakage feature is disclosed. The reflector includes a base and at least one side wall connected to the base and is disposed on the back board. The light source is disposed on the board and emits light. The lens unit is disposed on the light source and configured to diffuse the light emitted from the light source for generating light rays impinging on the side wall. The light-leakage feature is disposed at the side wall and configured to allow some of the light rays to pass through the side wall.

Abstract: A compact recessed lighting system is provided. The recessed lighting system includes a light source module and a driver coupled to a unified casting and within a shared junction box. The junction box may be coupled to a set of hangar holders that are movably coupled to a corresponding set of hangar bars. The junction box, including the light source module and driver installed therein, may move both 1) along the hangar bars and 2) along an axis perpendicular to the hangar bars. Accordingly, the junction box may be moved to rest in preferred location between a set of joists or beams in a structure. By being configured such that the junction box, along with the light source module and driver, is coupled to a unified set of moveable elements that position the combined structure, the recessed lighting system eliminates the added bulk and size of traditional recessed lighting systems.

Abstract: An elongated light guiding lens can include an incident portion and a light guiding portion with an L-shaped cross section. The incident portion can be erected at a rear end portion of the light guiding portion, and have a second incident surface at its left end, for receiving light from an LED while collimating the light in the vertical direction. The light guiding portion can extend forward while expanding leftward more than the position corresponding to the second incident surface, and include a second reflection surface provided below the second incident surface to internally reflect the light from the second incident surface toward a side reflection surface of a left end side surface. The side reflection surface can include a plurality of first lens cuts configured to internally reflect the light reflected by the second reflection surface to a light exiting surface of the front surface portion.

Abstract: A frameless display device includes a conductive connection body formed on a substrate. A first via is formed in a protective layer and located above the conductive connection body. A second via hole is formed in the substrate and located under the conductive connection body. A circuit layout layer is connected through the first via with the conductive connection body and a flexible connection circuit connected to a drive circuit board is connected through the second via with the conductive connection body thereby achieving electrical connection between the drive circuit board and the circuit layout layer. The flexible connection circuit and the drive circuit board are both arranged at a back side of the substrate without occupying an effective display zone.

Abstract: A low-resolution image is displayed at high resolution and power consumption is reduced. Resolution is made higher by super-resolution processing. Then, display is performed with the luminance of a backlight controlled by local dimming after the super-resolution processing. By controlling the luminance of the backlight, power consumption can be reduced. Further, by performing the local dimming after the super-resolution processing, accurate display can be performed.

Abstract: A pickup truck is provided that includes a tonneau cover or bed cap that includes a lighting system. The light system is selectively attached to the tonneau cover or bed cap. The light system includes a longitudinally extending rod having an illuminating portion extending along at least a portion of the longitudinal extent of the rod. The longitudinally extending rod includes first and second end portions and an on/off switch located at least adjacent to the first end portion of the longitudinally extending rod. At least one clip is attached to the tonneau cover or bed cap that selectively holds the longitudinally extending rod. The longitudinally extending rod is pivotable within the at least one clip such that the illuminating portion is selectively directable toward different directions.

Abstract: A light-providing device is provided, including a light guiding member, an LED (light-emitting diode), and a light distribution adjusting member, wherein the LED is disposed on the light guiding member. The light guiding member has an opening. The light distribution adjusting member has an inlet and an outlet. The inlet is connected to the opening. The shape or dimensions of the inlet is different from that of the outlet. A plurality of lights generated by the LED enter the light distribution adjusting member through the opening and the inlet, and leave the light distribution adjusting member through the outlet. The lights include a first light angular distribution at the inlet, and include a second light angular distribution at the outlet, wherein the second light angular distribution/the first light angular distribution is proportional to the inlet/the outlet.

Abstract: The cap (1) is intended to be assembled with at least one chipped element (2), said cap comprising a stack of a plurality of electrically insulating layers (1a) delimiting at least one shoulder (3) forming a part of a first groove (4) for housing a wired element (12). The cap further comprises: at least one electrical bump contact (6) arranged at an assembly surface (7) of the stack intended to be mounted on a face of the chipped element (2); at least one electrical connection terminal (5, 5?) arranged at a wall of the shoulder (3); an electrical link element (8), electrically linking said electrical connection terminal (5) to the electrical bump contact (6).

Abstract: An illumination device includes a light source, a device body to which the light source is mounted, and an optical member configured to control light distribution of light emitted from the light source. The light source includes LEDs arranged in a matrix form or a linear form. The optical member includes a lens portion configured to control light distribution of the LEDs on a row-by-row basis. The lens portion includes a recessed incidence portion on which the light emitted from the LEDs is incident, an elongated emission portion opposite to the incidence portion, and a pair of reflection portions which interconnects the incidence portion and the emission portion along a longitudinal direction thereof and totally reflects the light incident from the incidence portion. The emission portion is formed to have a plurality of successive convex surfaces when seen in a cross section taken along the longitudinal direction thereof.

Abstract: A white-light LED module is disclosed. The white-light LED module includes a substrate, and a red-light LED chip string, a blue-light LED chip string, and a green-light LED chip string arranged on the substrate. The red-light LED chip string, the blue-light LED chip string, and the green-light LED chip string are connected in parallel. A number of blue LED chips within the blue-light LED chip string equals to the number of green LED chips within the green-light LED chip string. The number of red LED chips within the red-light LED chip string is as double as the number of blue LED chips and the green LED chips. In this way, the light mixture performance of the red, green and blue LED chips may be enhanced.

Abstract: In various embodiments, an illumination apparatus includes an air gap between a sub-assembly and a waveguide attached thereto at a plurality of discrete attachment points, as well as a bare-die light-emitting diode encapsulated by the waveguide.

Abstract: A light-emitting device in accordance with the present invention includes a mounting substrate; an LED chip bonded to a surface of the mounting substrate with a bond; and an encapsulating portion covering the LED chip. The bond transmits light from the LED chip. The mounting substrate includes: a light-transmissive member having a planar size larger than that of the LED chip; and first and second penetrating wirings which penetrate the light-transmissive member in the thickness direction thereof and are electrically connected to first and second electrodes of the LED chip via first and second wires, respectively. The light-transmissive member includes at least two light-transmissive layers with different optical properties which are stacked in the thickness direction. A light-transmissive layer of the light-transmissive layers which is farther from the LED chip is higher in reflectance to the light.

Abstract: A multi-functional heat sink includes a top portion and a skirt portion extending down from the top portion. When a light source is attached to the top portion on an underside of the multi-functional heat sink, the skirt portion reduces risk of rain water from reaching the light source and prevents light emitted by the light source from exiting the multi-functional heat sink in an upward direction. The multi-functional heat sink is made from sheet metal.

Abstract: The invention discloses an optical assembly comprising a plurality of optical components that are concentric to one another, each optical component having a partially reflective and partially transmissive interface with an oblique angle of incidence, and the reflectivity of the interface increasing with distance from a common center; a transitional optical component is provided between the light source and the first optical component in order to direct lights from a light source to the partially reflective and partially transmissive interface of the first optical component. By assembling the plurality of optical components, a much thinner lighting device (100) can be achieved.

Abstract: A cabinet capable of guiding light, which is used for detecting a biological sample strained with a fluorescent dye, includes a main body, at least one light source, and at least one light guiding structure. The main body has a sample table to place the biological sample. The at least one light source is provided on the main body and near the sample table, wherein the at least one light source provides light required to excite the fluorescent dye incorporated in the biological sample. The at least one light guiding structure is provided between the sample table and the at least one light source to refract the light provided by the at least one light source onto the sample table and the biological sample. Whereby, the biological sample is exposed to more light, and therefore the intensity of the light released from the biological sample is enhanced.

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

Abstract: A light emitting module includes a circuit board, light emitting elements disposed on the circuit board, each light emitting element including light emitting diode chips and a wavelength conversion layer coated on the light emitting diode chips, and a lens disposed on the light emitting elements and configured to diffuse light emitted from the light emitting elements. The lens includes a concave part having a light incident surface and an upper surface through which the light incident on the lens is emitted, and at least one of the light incident surface and the upper surface includes sections disposed at least 15° from a central axis and sequentially connected in a first direction.