100results about How to "Reduce light loss" patented technology

Embodiments of the invention relate generally to an ultraviolet (UV) cure chamber for curing a dielectric material disposed on a substrate and to methods of curing dielectric materials using UV radiation. A substrate processing tool according to one embodiment comprises a body defining a substrate processing region; a substrate support adapted to support a substrate within the substrate processing region; an ultraviolet radiation lamp spaced apart from the substrate support, the lamp configured to transmit ultraviolet radiation to a substrate positioned on the substrate support; and a motor operatively coupled to rotate at least one of the ultraviolet radiation lamp or substrate support at least 180 degrees relative to each other. The substrate processing tool may further comprise one or more reflectors adapted to generate a flood pattern of ultraviolet radiation over the substrate that has complementary high and low intensity areas which combine to generate a substantially uniform irradiance pattern if rotated. Other embodiments are also disclosed.

Embodiments of the invention relate generally to an ultraviolet (UV) cure chamber for curing a dielectric material disposed on a substrate and to methods of curing dielectric materials using UV radiation. A substrate processing tool according to one embodiment comprises a body defining a substrate processing region; a substrate support adapted to support a substrate within the substrate processing region; an ultraviolet radiation lamp spaced apart from the substrate support, the lamp configured to transmit ultraviolet radiation to a substrate positioned on the substrate support; and a motor operatively coupled to rotate at least one of the ultraviolet radiation lamp or substrate support at least 180 degrees relative to each other. The substrate processing tool may further comprise one or more reflectors adapted to generate a flood pattern of ultraviolet radiation over the substrate that has complementary high and low intensity areas which combine to generate a substantially uniform irradiance pattern if rotated. Other embodiments are also disclosed.

The invention discloses an integrative composite module of a touch screen and a flat panel display module and a method for manufacturing the same. The composite module comprises the touch screen, the flat panel display module, and a middle adhesive layer for adhering the touch screen and the flat panel display module, wherein the adhesive layer is an optical adhesive layer which fully covers the visual area of the touch screen, and the refractive index of the optical adhesive layer is same as or similar to that of the interface of the touch screen and the flat panel display module. The composite module is provided with the optical adhesive layer between the touch screen and the flat panel display module, and the refractive index of the optical adhesive layer is same as or similar to that of the interface of the touch screen and the flat panel display module, thus the reflectivity of the composite module can be reduced effectively, the light loss of the composite module can also be reduced simultaneously, and the light transmittance of the combined module is improved. The composite module adopts a simple manufacturing method and is easy to operate.

A liquid crystal display module includes a light source that generates light. A light guide panel has a first refractive index. Light from the light source propagates through the light guide panel. A low refractive index layer is disposed on the light guide panel and has a second refractive index which is lower than that of the light guide panel. A transmissive liquid crystal display panel is disposed on the upper part of the lower refractive layer.

A silicon submount for a light emitting diode (LED) including a silicon base, a first insulating layer, a first electrode, a second electrode, and a reflective layer is provided. The silicon base has an upper surface and a lower surface, and a recess is disposed at the upper surface. The first insulating layer covers the upper surface and the lower surface of the silicon base. The first electrode and the second electrode are disposed on the first insulating layer on a bottom of the recess. The reflective layer is disposed on the first insulating layer on a sidewall of the recess. The first electrode, the second electrode, and the reflective layer are separated from one another and formed by the same material.

Disclosed is a projection display apparatus which is provided with: a light source (110) which emits light having coherency; a light modulation element (500), which modules the light emitted from the light source; and a projection unit (150) which projects, to a projection plane, the light emitted from the light modulation element. The projection display apparatus is also provided with a speckle noise reducing element (600) provided between the light source and the light modulation element, and a control unit which controls first mode and second mode. The control unit controls the speckle noise reducing element so that speckles are reduced in the first mode compared with those in the second mode.

The invention discloses a chip scale LED package structure. The chip scale LED package structure comprises an LED chip with electrodes on the bottom surface, and a package adhesive body which packs the top surface and the side surfaces of the LED chip. At least one of the bottom and the side surface of the package adhesive body is provided with a reflect surface which is a reflective curved surface or a reflective flat surface extending from the bottom of the package adhesive body to the side surface of the package adhesive body. By arranging the reflective surfaces with high reflectivity on the bottom surface and/or the side surface of the package adhesive body, the chip scale LED package structure can effectively the deficiency that light is emitted out from the bottom or the side surface of the package adhesive body to result in ineffective light extraction, thereby improving the light extraction efficiency of products and reducing light losses; besides, by means of the reflective surfaces on the side surface and the bottom surface of the package adhesive body, the chip scale LED package structure can well control the light emitting angles of the products, facilitating formation of a single light exiting surface and further facilitating using compatibility of the products on different occasions. The chip scale LED package structure can be widely applied to manufacturing chip scale package LED products in the fields such as backlight and lighting.

The invention provides a side incident LED (Light Emitting Diode) backlight module structure which comprises an LED light-bar light source, a middle frame bracket, an optical sheet, a light guide plate, a reflective sheet, heat radiating fins, a back plate, a mirror reflection bar and a light absorption buffer bar, wherein the mirror reflection bar and the light absorption buffer bar are adhered on the middle frame bracket, the mirror reflection bar corresponds to a gap between the surface of the LED light-bar light source and the incident surface of the light guide plate, and the light absorption buffer bar is located between the optical sheet and the middle frame bracket. When the scheme is adopted, light leaked out of the gap between the surface of an LED lamp and the incident surface of the light guide plate can be reflected back to the light guide plate through the mirror reflection bar, so that light loss is effectively reduced; the light absorption buffer bar absorbs remaining light beams, and prevents the remaining light beams from leaking from the gap between the optical sheet and the middle frame bracket, so that the light leakage phenomenon is improved; and meanwhile, the problems of the light loss and light leakage because an LED light emitting surface is equal to or larger than the incident surface of the light guide plate are solved, and the luminance, the energy efficiency and the luminance uniformity of the backlight module are improved.

The invention provides a backlight module and a display device. The backlight module comprises a substrate, an optical film structure layer, a through hole and a light control structure. Wherein the optical film structure layer is arranged on the substrate, the through hole penetrates through the substrate and the optical film structure layer, and the light control structure is arranged in the through hole.

The invention discloses a voltage rise inhibition method for a medium-low-voltage distribution network comprising photovoltaic access. According to the invention, there is no need to modify a line inthe method, and the method comprises the steps: taking a conventional photovoltaic grid-connected inverter topological structure as a base; adding a power adjustment module; setting a Q-U relation curve of reactive power and a grid-connected point voltage; carrying out the corresponding reactive power compensation through the detection of the grid-connected point voltage, thereby achieving a certain voltage-stabilizing effect; estimating an active power value through the active power upper limit calculation when the grid-connected point voltage reaches a maximum allowed voltage, taking the value as the active power upper limit, and reducing the active output of a system correspondingly, thereby achieving a purpose of stabilizing the voltage. The method can guarantee that the system voltageoperates within a rated range, can reduce the photovoltaic-abandoning loss of the system, and improves the permeability of a distributed power supply in a power grid.

The invention includes sampling part and analyzing part. The analyzing part includes light source system, spectrum system, sequential control system and acquisition analysis system. The sampling part is composed of cyclone separator and quartz analysis pool under the former. In working condition, the quartz analysis pool taken off from the cyclone separator is fixed a fixed station driven by a motor. In the light source system, a filter is installed on emergent light of the laser. A plane mirror is installed at 45 deg of angle with emergent light. A convex lens setup perpendicular to emergent light is installed with its focus point on the quartz analysis pool. The instrument can measure main element, most of secondary elements and minority of trace elements. The sampling and measuring time is less than 5 minutes.

An electronic member capable of reducing a loss of light until reaching the end of an operation shaft and enhancing the illumination intensity at the end of the operation shaft, and a rotary electronic component constituting the electronic member. The electronic member includes a rotary electronic component having a hollow hole penetrating in a direction of a shaft, a wiring board on which the rotary electronic component is mounted, an illuminating device mounted on the wiring board at one end of the hollow hole, and a light guide body being inserted in the hollow hole and guiding light emitted from the illuminating device to another end of the hollow hole.

The invention relates to a prism sheet and a backlight device with the same. The backlight device at least comprises a luminous element, a light guide plate and the prism sheet. The light guide plateis provided with an incidence surface and the light emitted by the luminous element illuminates onto the incidence surface. The prism sheet is arranged above the light guide plate and comprises a light condensation film and a plurality of prism peaks which are formed on the upper surface of the light condensation film. The prism peaks are distributed on the light condensation film in a form of anarray. Each prism peak is in a pyramid shape or a prismatic table shape and is provided with at least six arrises. The bottoms of the adjacent prism peaks are combined with each other. By adopting thestructure, the backlight device can condense light in a plurality of directions under the condition of using only one prism sheet, thereby facilitating reducing the thickness of the backlight device.

The invention discloses a screen dot structure and a preparation method thereof, a backlight module and a liquid crystal display device. The screen dot structure is arranged between a light guide plate and a reflection sheet. The screen dot structure comprises a plurality of scattering screen dots formed on the light guide plate in a protruding manner and an optical glue layer attached to the scattering screen dots and the reflection sheet. The thickness of the screen dot structure is 2 [mu]m-100 [mu]m. According to the invention, the protruding scattering screen dots are arranged on the light guide plate and are bonded to the reflection sheet through the optical glue layer, so that the screen dot function is simultaneously realized, the effect of supporting the interval between the light guide plate and the reflection sheet is achieved, the optical loss at interfaces is reduced, and the light extraction efficiency of the light guide plate is improved.

The invention discloses a backpack type wireless optical stimulation device and a backpack type wireless optical stimulation method. The backpack type wireless optical stimulation device comprises an optical fiber, an optical fiber coupling device, a backpack control circuit, a laser light-emitting diode (LED), an upper computer, a wireless transmission module and a wireless receiving module, wherein the wireless transmission module is matched with the wireless receiving module; the backpack control circuit comprises a microprocessor and a light source drive circuit which are electrically connected with each other; the optical fiber coupling device comprises a shell, an LED connecting piece, an optical fiber coupling lens component and an optical fiber collimator; the upper computer transmits a stimulation command to the backpack control circuit through the wireless transmission module and the wireless receiving module; the backpack control circuit receives the stimulation command and converts electrical signals into a series of optical signals representing optical stimulation characteristics; and the optical signals are transmitted into a light-sensing gene brain region of a target animal through the optical fiber coupling device and the optical fiber, so that the optical stimulation effect on the light-sensing gene brain region is achieved. The invention provides an optical stimulation mode, which is portable, stable, low in power consumption, convenient to use and small in distance limit and has wide application prospect in the field of neural engineering.

The invention discloses a projection system with total reflection prism, which consists of light source and TIR prism structure, wherein the TIR prism structure reflects the injection light beam into the DMD part and projection lens, which realizes the projection display; the system can project the image on the display screen through rotating the microlens reflective light.

The invention discloses a light source unit, which comprises a supporting framework, a light source for emitting blue light and a quantum dot film assembly, wherein the supporting framework comprises an encapsulation slot provided with a first surface and a light emitting window, the width of the light emitting window is larger than that of the first surface; the light source for emitting blue light is encapsulated on the first surface by a encapsulating material layer; the quantum dot film assembly comprises a quantum dot film, a first protective film connected to a first side face of the quantum dot film, and a second protective film connected to a second side face of the quantum dot film; the quantum dot film assembly is connected onto the encapsulating material layer in the way that the first protective film faces the direction of the light emitting window; the width of the quantum dot film assembly is not less than that of the light emitting window; the quantum dot film assembly is configured to convert the blue light part emitted by the light source to green light and red light. The invention also discloses a backlight module of the light source unit and a liquid crystal display comprising the backlight module.

A light source apparatus includes a first light source unit including a first light emitting device, a second light source unit including second and third light emitting devices, a light beam conversion system, and a light ray combiner. The first, second, and third light emitting devices emit first, second, and third light beams, respectively. The combiner has first, second, and third areas which these light beams enter, respectively. One of the light beams is a specific light beam. The direction in which the second and third areas are arranged is a third direction. The conversion system converts the specific light beam such that the dimension of the specific light beam in the third direction at a stage in which the specific light beam enters the combiner is smaller than that at a stage in which the specific light beam exits the conversion system.

A side-emitting light-emitting element and a packaging lens thereof, wherein the packaging lens comprises an incident surface, a reflective surface, a first refractive surface, and a second refractive surface. The first refractive surface has zigzag surfaces. After a light from a light source enters into the packaging lens through the incident surface, a portion of the light is reflected by the reflective surface to the first refractive surface via total internal reflection to vertically penetrate the first refractive surface and then proceeds along a first optical path. The other portion of the light is refracted by the second refractive surface to penetrate the second refractive surface and then proceeds along a second optical path, which is parallel to the first optical path. A zigzag surface of the first refractive surface avoids from undesired lights reflected by the first refractive surface.

A solid laser contains LD array, heat sink adhered crystal chip, coupling output mirror, wherein the crystal chip has gain medium doped column shape thin crystal in center and regular n-polygon non-doped irregular structure crystal in outside, which has a column hole in center, n is not less than 6 and is even number, the surface of column shape thin crystal plated with oscillation all reflection film and adhered with micro-pass cooling heat sink, n number of LD arrays fixed on outside of non-doped irregular structure crystal. Said invention has high laser power output, simplified pumping optical structure, fine mechanical stability and radiation ability.

The invention discloses a backlight source structure and a working method thereof. Emergent blue light can be mixed with long-wavelength yellow light obtained by the transformation of the blue light in the excitation of fluorescent powder to obtain required white light by adopting a rational fluorescent powder proportion and distributing fluorescent powder dots on a light guide plate according to proper rules. Compared with the conventional method in which white-light light emitting diodes (LED) form a light source, the method is convenient to operate, reduces the cost of the light source, reduces optical loss, increases the exitance of the light, can further reduce the power of a backlight source and has great significance in energy saving popularization.

A nitride light emitting device includes a first conduction type cladding layer, an active layer, and a second conduction type cladding layer that are stacked on a substrate. The second conduction type cladding layer has an uneven shape including at least one concave and/or convex portion.

A uniform reflective light-guide for accompanying an edge light source to form a backlight module for an LCD display includes a light-guiding layer and a reflective layer. The light-guiding layer further defines a light-introducing surface and a light-exiting surface. The light-introducing surface is to allow lights emitted from the edge light source to enter the light-guiding layer. The light-exiting surface perpendicular to the light-introducing surface is to allow at least a portion of the lights to leave the light-guiding layer. The reflective layer is to reflect the incident lights back to the light-guiding layer. The reflective layer and the light-guiding layer are manufactured integrally into a unique piece by a co-extrusion process so as to avoid possible existence of an air spacing in between. A reflective surface is defined to interface the reflective layer and the light-guiding layer, and a three-dimensional micro-structure is constructed on the reflective surface.

The separate omnibearing laser receiving thruster comprises one or two optical systems, thrusting agent storage boxes, one or two burning chambers and spraying tubes, with the optical system at one side of the burning chamber, whose one side opens a transparent laser entrance portal, based on which, the optical system rotating and receiving all the laser beam of XY surfaces, accumulating to the center of the burning chamber through the optical system, with the trusting agent sprayed from the spray tube to generate forward thrusting. Complete separation of the optical system and the thrust system, free from the influence of high temperature and pressure thrust air flow, omnibearingly receiving laser beams from every direction, to adapt to all kinds of track conditions.

A light guide (102) for bending guided light from a first direction (12) into a second direction (13) using a set of curved slits (9, 10, 11) formed in the light guiding core. The set of curved slits delimits separate bent light guide channels (14, 15, 16, 17) which guide the light through the bent light guide channels by total internal reflection.

The invention provides a light source system, a projection device and a lighting device. The light source system comprises: a laser light source used for emitting a first-color laser; a supplementarylight source used for emitting the laser as supplementary light; and an optical path selection element including a transmission part used for transmitting the first-color laser, a light path selectionpart used for sequentially reflecting the first-color laser to a first light path or a second light path at any time, and the driving part used for driving the transmission part and the light path selection part to be alternately positioned on the light path of the first color laser; a first wavelength conversion device used for generating second-color fluorescence under the excitation of the first-color laser transmitted along the first light path; and a second wavelength conversion device used for generating third-color fluorescence under the excitation of the first-color laser transmittedalong the second light path, wherein the second-color fluorescence, the third-color fluorescence and the supplementary light are combined with the first-color laser transmitted by the light path selection element and then emitted.

The present invention provides a backlight module and a display apparatus. The backlight module comprises a circuit board, a plurality of light sources and a reflective layer. The light sources have lighting surfaces and are electrically connected to the circuit board. The reflective layer flushes with the lighting surfaces of the light sources. Alternatively, the height difference between the reflective layer and the lighting surfaces of the light sources is less than 1 mm for reducing the height difference between the reflective layer and the lighting surfaces of the light sources. The present invention can raise the utilization rate of the reflective light.

The invention discloses a direct-down LED flat lamp, which belongs to the technical field of LED lamps, and comprises a frame in which a diffusion layer, a reflection layer and a substrate are sequentially arranged from the front to the back, and LEDs are also arranged on the substrate. The above-mentioned LED is covered with a lens. The present invention uses a lens + LED light bar as a light source, and the light is reflected multiple times in the lens to achieve the purpose of diffusing and improving light uniformity. The LED light bar is a structure set on the bottom surface of the light source and does not use the light guide plate, so that the weight of the whole light is greatly reduced, the structure is simpler, the power of the whole light is smaller, the heat dissipation surface is larger, the heat dissipation effect is better, and the service life is improved.

A method of displaying a video image comprises receiving sequential image frames at a processor. Each image frame is processed to obtain a kinoform. A programmable diffractive element such as an SLM represents the sequence of kinoforns allowing reproduction of the image using a suitable illumination beam.

The invention provides a pixel array and a camera sensor. A plurality of first sub-pixels are used for being arranged in parallel along the horizontal direction, so that a plurality of first sub-pixel rows are formed; a plurality of second sub-pixels are used for being arranged in parallel along the vertical direction, so that a plurality of second sub-pixel lines are formed; a plurality of third sub-pixels are used for being arranged in parallel along the horizontal direction, so that a plurality of third sub-pixel rows are formed; the third sub-pixel rows are arranged between every two adjacent first sub-pixel rows; a colour filter is added onto each pixel in the plurality of third sub-pixel rows, so that a plurality of fourth sub-pixel rows are formed; the colour filter on each pixel in the plurality of first sub-pixel rows is removed, so that a plurality of fifth sub-pixel rows are formed; and the plurality of fourth sub-pixel rows and the plurality of fifth sub-pixel rows are fused, so that a coloured image is obtained. According to the invention, the illumination loss can be reduced; and the image definition can be improved.