10results about How to "Uniform light output" patented technology

The invention belongs to the technical field of light emitting, and particularly relates to a side-in type backlight module which comprises a circuit substrate, lamp panels, a light emitting chip, a light uniformizing piece and a light uniformizing unit, the lamp panels are arranged on one side of the circuit substrate and are perpendicular to the circuit substrate, a plurality of grids are defined by the multiple lamp panels on the surface of the circuit substrate, and the light emitting chip is arranged on the light uniformizing piece. One surface of the circuit substrate close to the lamp panel is coated with a reflecting layer; the light-emitting chips are arranged on the surface of the lamp panel, at least one light-emitting chip is arranged in each grid, and the circuit substrate and the light-emitting chips are electrically connected through the lamp panel; the grids are wrapped and clamped by the dodging sheet and the circuit substrate, a plurality of dodging units are arranged on the side, close to the circuit substrate, of the dodging sheet, the dodging units and the grids are embedded into the grids in a one-to-one correspondence mode, and the dodging sheet is positioned. The backlight module has the effect that positioning between the dodging sheet and the backlight source is more stable and accurate.

The utility model relates to a kind of surface light emitting optical systems, including LED light source component, support and at least one light guide plate, the LED light source component and any light guide plate are installed on the support;Any the end face of the light guide plate is light entrance, and the side surface is respectively light exit and back surface opposite to light exit;Multiple recesses in sheet shape are arranged on the back surface;The light emitted by the LED light source component can enter light guide plate from light entrance, and uniform emission is carried out to light exit after the concave reflection of the recess, then uniform emission is carried out from light exit;Compared with prior art, the utility model uniform emission is carried out to light exit, and avoids part of light loss, improves light efficiency, reduces energy consumption.

This application discloses a button light guide structure, an luminous button, and an electronic device. The button light guide structure is applied to an luminous button, which includes a light source. The button light guide structure includes: a base with at least one receiving groove on its lower surface; the light source is located within the receiving groove; at least one scattering part penetrating the base and positioned above the light source; a diverging area on the upper surface of the base, comprising multiple diverging blocks evenly distributed on the upper surface of the base; a reflector above the diverging area for reflecting light; and an upwardly extending edge of the base forming a light guide ring. The button light guide structure of this application provides more uniform light emission from the light guide ring, effectively reducing glare.

The utility model discloses a waterproof slanting light anti -dazzle wall washer lamp belongs to wall washer lamp technical field, include: wall washer lamp body, the inside wall of wall washer lamp body is seted up and inserts the slot, and the inner chamber of wall washer lamp body is provided with circuit mainboard, and the side of circuit mainboard is seted up with a plurality of location recess, and the location recess is welded with the light source circuit board, and the upper portion of light source circuit board is installed with wall washer light source, integral type horizontal anti -dazzle grid, the surface is provided with a plurality of groups equidistance arrangement horizontal anti -dazzle stripe, and each group horizontal anti -dazzle stripe contains a plurality of horizontal anti -dazzle stripes, and is seted up in the insert slot, integral type vertical anti -dazzle grid, the surface is provided with a plurality of groups equidistance arrangement vertical anti -dazzle stripe, and each group vertical anti -dazzle stripe contains a plurality of vertical anti -dazzle stripes, also seted up in the insert slot, two waterproof silica gel rings, this wall washer lamp can select the anti -dazzle direction, and can realize the different light slanting degree through the inclination of the location recess on the circuit mainboard, and is more flexible.

This invention discloses a strip defect detection light source and defect detection device. The strip defect detection light source includes a lamp bead, a first transmitting element, a second transmitting element, and a reflector. The first transmitting element includes a first light-inlet surface and a first light-outlet surface. The first light-inlet surface is convex, and the lamp bead is located at the focal point of the first light-inlet surface. The first light-outlet surface includes alternating first flat portions and first concave portions, with the concave portion of the first concave portion facing the centerline of the first light-outlet surface. The second transmitting element is fixed on both sides of the first transmitting element and surrounds the light-emitting side of the lamp bead. There are two reflectors, each fixed to one side of the two second transmitting elements away from the first transmitting element. This invention achieves directional refraction through the first concave portion, guiding the light from the central region of the light source to both sides in an orderly manner, effectively supplementing the light amount in the lateral regions, and achieving uniform light output across the entire area. At the same time, it maintains high directivity of the light throughout the process, avoiding interference from diffuse light with the imaging effect of defect detection.

The present application provides a kind of lens and lamp, the lens includes concave light cavity and the light cavity below and concave light exit cavity, the first light entrance surface is in the light cavity, the first light exit surface is in the light exit cavity opposite the first light entrance surface, the first microstructure is on the first light entrance surface, the second microstructure is on the first light exit surface, the light from the first microstructure is incident, and the first microstructure generates once self-mixing light, and the second microstructure is emitted and generates twice self-mixing light.Compared with prior art, the present application is simple in structure and the light emitted is uniform and free of yellow spots.

The utility model relates to a backlight module, which comprises a circuit board, a light guide plate and a light guide plate, the plurality of light-emitting elements are arranged on the circuit board; the light guide part is connected with the circuit board, a groove is formed in the light guide part, a containing space is formed between the groove and the circuit board, and the light-emitting element is located in the containing space; the light control layer is arranged on the inner side face of the groove, and the light control layer comprises a reflecting area with high reflectivity and a light-transmitting hollow-out area. The beneficial effects of the utility model lie in that the light mixing uniformity can be improved, the light loss can be reduced, and the light and thin structure can be realized.

The application relates to the field of inkjet printing technology and discloses quantum dot ink and an electroluminescent device. The quantum dot ink comprises quantum dots and mixed polar solvents. The quantum dots comprise quantum dot bodies and organic chain segments connected to the surfaces of the quantum dot bodies, and the organic chain segments are linked with functional groups soluble in polar solvents. The mixed polar solvents comprise multiple polar solvents. The functional groups soluble in polar solvents are connected to the surfaces of the quantum dot bodies, so that the quantum dots can be dissolved in polar solvents. When the ink is printed on a TFB layer, the ink is compatible with the TFB layer, the interface compatibility between a quantum dot light-emitting layer formed after the ink is solidified and the TFB layer is high, the film surface of an electroluminescent device prepared by the application is uniform, and the electrical performance of the light-emitting layer formed by the ink is improved by adding zinc halide as an additive in the ink, so that the luminous brightness of the electroluminescent device is improved.

The utility model discloses a sound box narrow-distance dodging structure, which comprises an LED light bar and a lampshade, the LED light bar comprises a circuit board and a plurality of LED chips arranged on the circuit board, the sound box narrow-distance dodging structure is characterized in that the lampshade is provided with a plurality of attenuation parts, and part of light emitted by the LED chips irradiates the corresponding attenuation parts and then is emitted. The light emitted by the LED chip is emitted after being attenuated by the attenuation part, so that the overall uniform light emission can be realized, the distance from the LED chip to the lampshade can be 2.77 mm, and the volume occupied by the narrow-distance uniform light structure on the sound box can be smaller.

This invention discloses a Mini LED backlight and its backlight module, comprising a circuit board, several chips, and an optical layer. The chips and optical layer are fixed above the circuit board, with the optical layer covering the chips. The chips and optical layer constitute independent light-emitting units. The optical layer includes a first optical layer…annth optical layer stacked sequentially from the inside out, all of which are fixedly connected to the circuit board. Each of the first…annth optical layer contains filling particles. The angle between the first curved segment and the circuit board is θ1; the angle between the second curved segment and the circuit board is θ2; the angle between the external tangent of the third starting point of the third curved segment and the circuit board is θ3. The relationship between angles θ1, θ2, and θ3 is: θ3 > θ2 > θ1. In this invention's Mini LED backlight and its backlight module, increasing the light emission angle provides the advantages of preventing dark stripes and ensuring uniform light color.