508results about How to "Improve spotlight effect" patented technology

The invention discloses an optical fingerprint sensor module, comprising a protection layer and an optical fingerprint sensor located under the protection layer; the optical fingerprint sensor is equipped with a light transmitting substrate and an instruction layer; the instrument layer is equipped with multiple pixels; every pixel is equipped with a light transmitting region and a light proof region; the light proof region is equipped with a sensing element; the light transmitting region enables the lights to transmit the instrument layer; a backlight source is located under the optical fingerprint sensor; the instrument layer is located between the backlight source and the light transmitting substrate; or the light transmitting substrate is located between the backlight source and the instrument layer; at least one of a light condensing layer and a light straightening layer is arranged between the optical fingerprint sensor and the backlight source; the angle range of the transmitted lights is reduced by the light condensing layer and the light straightening layer. The definition of the fingerprint image formed by the optical fingerprint sensor module is improved.

A light guide plate with a light emitting surface, a bottom surface and at least one light incident surface being connected with the light emitting surface and the bottom surface is provided. The light guide plate is a superposition of a plurality of layers substantially parallel to the light emitting surface. A plurality of stripe-shaped light-controlling structures are formed on the light emitting surface and a plurality of light-reflecting structures are formed on the bottom surface. The light guide plate provides a surface light source with high brightness and excellent uniformity in a direction perpendicular to the light emitting surface.

This invention provides an optical imaging lens system in order from an object side to an image side comprising five non-cemented lens elements with refractive power: a first lens element with positive refractive power having a convex object-side surface; a second lens element with positive refractive power; a third lens element with negative refractive power, and both surfaces being aspheric; a fourth lens element having a convex image-side surface, and both surfaces being aspheric; and a plastic fifth lens element having a concave image-side surface, both surfaces being aspheric, and at least one inflection point is formed on at least one of the surfaces thereof. By such arrangement, the refractive power of the optical imaging lens system can be effectively distributed with improved light converging power so that the total track length can be shortened effectively, and the aberration of system can be corrected to facilitate high image quality.

The invention provides a secondary reflection light gathering and heat collecting device with a compound curved surface, which relates to a solar slot type light gathering and heat collecting device and comprises a heat collecting tube (1), a plane primary reflector (2), a refracting plane secondary reflector (3), a compound circular arc primary reflector (4), a compound paraboloid secondary reflector (5) and a supporting frame (6), wherein the heat collecting tube (1) comprises two parallel heat collecting tubes and is positioned in the compound paraboloid secondary reflector (5), and the supporting frame (6) is positioned below the compound circular arc primary reflector (4) and used for fixing the compound circular arc primary reflector (4). By adopting the design of combination of onesupporting frame and two heat collecting tubes, the cost and the height of the heat collecting device can be remarkably reduced; by adopting the compound paraboloid secondary reflector, the requirement on the tracking accuracy is reduced; by adopting the compound circular arc primary reflector, the degree of freedom of the design is increased; and by adopting the design of combination of the planereflector and the refracting plane, the utilization ratio of the light energy is improved.

A method for introducing a foreign matter into a cell, includes the steps of placing a small particle carrying a foreign matter at a part of a cell surface of a living cell, boring a hole in a cell wall and / or a cell membrane by irradiating and treating said part of the cell surface with a laser beam, and introducing the foreign matter into the living cell.

The invention discloses an image detection-based on-line detection and correction method of a reflection angle of a heliostat. Firstly, the heliostat to be corrected and a solar facula image in the heliostat are shot through a camera, the obtained image is processed, whether the solar facula image is positioned in the central position of the heliostat or not is judged, and if the solar facula image is positioned in the central position of the heliostat, the camera is aligned with the heliostat to be corrected; otherwise, the reflection angle deviation Theta of the heliostat is calculated according to the offset of the solar facula image from the central position of the heliostat, and a normal direction of the heliostat is controlled to rotate towards a direction in which the deviation is eliminated at an angle of half the Theta; and secondly, a declination angle Theta' between an angle for the camera to be aligned with the heliostat and an angle for the heliostat to be aligned with a heat collector is calculated, and the heliostat already aligned with the camera is rotated towards the heat collector for half the Theta'. By adopting the method, the heliostat can be accurately aligned with the heat collector when a static field is mounted, and errors caused by mechanical deformation and foundation settlement during long-term running of the static field can be corrected.

The invention discloses an optical fingerprint sensor module, comprising an optical fingerprint sensor and a planar backlight source, wherein the optical fingerprint sensor is provided with only one transparent substrate; the first surface of the transparent substrate is used for direct contact by a finger fingerprint; the second surface of the transparent substrate is provided with a device layer; the device layer is provided with a pixel area; the pixel area is provided with multiple pixels; each pixel comprises a transparent area and a non-transparent area; the non-transparent area is equipped with a photosensitive element; the transparent area enables light to pass through the pixel area of the device layer; the planar backlight source is located below the device layer; and emergent light of the planar backlight source passes through the device layer from the transparent area and then enters the transparent substrate. The structure of the optical fingerprint sensor module is simplified, and the performance is improved.

The invention relates to a condenser lens and a lamp using the same. The condenser lens is truncated cone-shaped and is symmetric relative to the lens axis. The condenser lens is characterized in that the middle of a first end surface with smaller diameter sinks inwards to form a light source accommodating cavity for adaptively accommodating the LED light source and the bottom surface of the light source accommodating cavity protrudes outwards to form a convex sphere; a second end surface with larger diameter is a plane; and a side wall of the condenser lens is a fully reflecting surface, thegeneratrix of the truncated cone-shaped lens is a fold line and is formed by connecting multiple line segments in sequence, and the multiple line segments and the lens axis form an angle shown in thespecification, wherein n is the index of refraction in condenser lens. The invention condenses the light from any angle of the LED light source, fully utilizes the light from the LED light source, ensures the radiant angle of the emergent light of the condenser lens to be less than 5 degrees and greatly improves the condensation effect.

An imaging optical system includes a first imaging structure having a first optical axis and a first field of view, wherein the first imaging structure forms an image on a common focal plane, and a second imaging structure having a second optical axis parallel to the first optical axis and a second field of view different from the first field of view, wherein the second imaging structure forms an image on the common focal plane. The imaging structures preferably contain identical lens modules, most preferably identical Petzval lenses, and achromatic or apochromatic prisms of different spatial orientations. A planar sensor structure lies in the common focal plane, wherein the first optical axis and the second optical axis pass through the planar sensor structure.

The invention relates to a bending-resistant large core high numerical aperture multimode fiber used for data transmission and optical devices. The bending-resistant large core high numerical aperture multimode fiber comprises a core and a cladding which coats the core. The bending-resistant large core high numerical aperture multimode fiber is characterized in that: the radius R1 of the core is 28 to 50 microns; a refractive index section of the core has a parabola shape; alpha is 1.9 to 2.2, and the maximum relative refractivity delta 1 percent max is 1.9 to 2.5 percent; the cladding outside the core is an inner cladding and / or a sunken inner cladding, and an outer cladding in sequence from inside to outside, and the radius R2 of the inner cladding is 28 to 55 microns, and the relative refractivity delta 2 percent is -0.1 to 0.1 percent; and the radius R3 of the sunken inner cladding is 28 to 60 microns, and the relative refractivity delta 3 percent is -0.15 to 0.8 percent. The bandwidth and the numerical aperture of the multimode fiber are increased, so that the light gathering capacity of the fiber is improved greatly and the multimode fiber is easier to couple with a light-emitting diode (LED) light source; the macro bending attached attenuation of the fiber is reduced obviously; the bending resistance of the fiber is improved; and the optical power transmission performance is intensified.

The invention relates to a gradual refractive index bending resistant multimode optical fiber, which includes a sandwich layer and a cladding, and is characterized in that the radius of the sandwich layer is 20 to 50 microns; the refractive index of the sandwich layer is distributed in a gradient gradation type, the distribution power exponent Alpha is 1.89 to 1.97, and the maximum relative refringence delta 1% max of the sandwich layer is 0.9% to 2.72%; the inner cladding is arranged adjacent to the sandwich layer, the radius of the inner cladding is 22 to 57 microns, and the relative refringence delta 2% is minus 0.02% to 0.02%; and a middle cladding and an outer cladding are arranged outwards the inner cladding sequentially, the middle cladding is a pure quartz glass layer, the radius of the middle cladding is 32 to 60 microns, the relative refringence delta 3% is minus 0.01% to 0.01%. The gradual refractive index bending resistant multimode optical fiber provided by the invention not only reduces the bending dissipation of the optical fiber, but also guarantees that optical fiber has high transmission bandwidth at a 1300 nm window, effectively improves the light collection and concentration capabilities of the optical fiber to LEDs, VCSELs or LDs through increasing the core diameter and numerical aperture, and improves the coupling fault-tolerant capability of luminous devices, namely between the light source and the light transmitting device, i.e. between optical fibers.

A projection stereoscopic display includes: a stereoscopic display optical system receiving linearly polarized light from the light source and displaying a first picture and a second picture both having binocular parallax by linearly polarized light with polarization directions orthogonal to each other, in which the stereoscopic display optical system includes: a reflective liquid crystal panel modulating and reflecting linearly polarized light from the light source in response to a picture signal, a first polarizing device splitting the first picture from reflected light from the reflective liquid crystal panel, a retardation device converting the polarization direction of the first picture into a direction orthogonal thereto, and a second polarizing device splitting the second picture from reflected light from the reflective liquid crystal panel, and superimposing the second picture on the first picture of which the polarization direction is converted by the retardation device.

The invention discloses a LED tunnel light. It includes shell and lighting module. The former includes lamp body fixed structure. The latter includes lens shade formed by lens array which formed by astigmatism convex and condense edge. The astigmatism includes light incidence and emergent planes. The lamp body fixed structure includes fixed frame and fixed plated surface. The invention can control the light distribution to make faculae form rectangle, have even illumination in effective area, little or no parasitic light out the area.

Provided are an easy-to-handle thin diffraction type light-condensing film exhibiting high light transmissivity and condensation ability, and a planar light source device using the film. A hologram optical element using diffraction / interference phenomena based on wave properties of light is used instead of a conventional prism sheet using refraction. As a result, the diffraction type light-condensing film and the planar light source device have high light transmissivity and are thin. In the diffraction type light-condensing film, dependence of bending angle on wave length is low and light entering from an oblique direction is bent in the vertical direction and emitted with spectral separation of white light suppressed. High light-condensation impossible in a conventional optical element is realized by suppressing angular variation in emission light for angular variation in incident light.

The invention discloses an ignition time measuring system of an electric ignition head. The system comprises a timer, an ignition power supply and an ignition time measuring component; the ignition time measuring component includes a hidden box, and a photoelectric sensor, a Fresnel lens and a bracket mounted in the hidden box; the electric ignition head connected with the ignition power supply is put on the bracket; the photoelectric sensor is positioned near a focal position of the Fresnel lens, and is connected with the timer; and the electric ignition head is positioned on one side opposite to a focus of the Fresnel lens, and is arranged near the optical axis of the Fresnel lens. The system has such advantages as simple structure, low manufacturing cost, convenience for operation, high measuring precision and sensitivity and accurate and reliable measuring result.

The invention discloses an LED lamp bulb with an excellent dissipation effect. The LED lamp bulb comprises a lamp head (1), an insulation fixed seat (2) which is fixedly connected with the lamp head (1), a driving circuit board (3) fixedly connected with the insulation fixed seat and an LED chip (51); the driving circuit board (3) is electrically connected with the lamp head (1) and the LED chip (51) through conductors (7) respectively; the LED lamp bulb also comprises a heat dissipation lamp shell (4), and a light penetration protective screen (6); the heat dissipation lamp shell (4) is fixedly connected with the insulation fixed seat (2); the LED chip (51) is connected with a heat dissipation baseplate (5) which is fixedly connected with the heat dissipation lamp seat (4); the light penetration protective screen (6) covers the outside of the heat dissipation baseplate (5) and the LED chip (51); the external wall of the heat dissipation shell (4) is provided with a plurality of heat dissipation rods (41). The LED lamp bulb can be widely applied in the field of LED lamp bulbs.

The invention relates to an optical diffusion film and a method for preparing the optical diffusion film. The optical diffusion film comprises a transparent base film, an anti-overlapping layer and a diffusion layer; the anti-overlapping layer is arranged on the back surface of the transparent base film and comprises anti-overlapping particles and a coating layer; the diffusion layer is arranged on the front surface of the transparent base film and comprises diffusion particles and a coating layer; and the diffusion particles are formed by methyl methacrylate resin, polyol resin, silicone, carbamate and dialkoxy hypnone as the photopolymerization initiator through ultraviolet irradiation, curing and polymerization and are imprinted by using a silicone rubber roller to be in compact and orderly hemispherical micro-structures. Compared with the prior art, the optical diffusion film has high optical uniformity and brightness and effectively improved light intensifying capacity.

The invention discloses a solar cell burning glass capable of improving output power of the solar cell, a burning glass and solar cell using the burning glass as well as embossing roller for producingthe glass. The whole surface of the burning glass facing the solar cell chip is provided with strip reflecting condensing figure, wherein the depth H of the sunken center part of the strip reflectingcondensing surface is 0.15-0.25mm, the width W of the strip reflecting condensing surface is 0.6-1.2mm, the width Wa of non-condensing surface is 0.1-0.25mm, and the area scale of the strip reflecting condensing surface part in the glass surface facing the solar cell chip is more than or equal to 75%.

The invention relates to an optical imaging lens. The optical imaging lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence from an object side to an image side. The first lens is a lens with a positive refractive index. The second lens is a lens with a negative refractive index. The object side face is provided with a concave face portion located in an area close to an optical axis. The image side face is provided with a concave face portion located in an area close to the optical axis. The object side face of the third lens is provided with a concave face portion located in the area close to the circumference. The image side face of the fourth lens is provided with a convex face portion located in the area close to the optical axis. The object side face of the fifth lens is provided with a concave face portion located in an area close to the optical axis. A portable electronic device comprises a machine shell and an image module arranged in the machine shell, and the image module comprises the optical imaging lens, a lens cone, a module base unit and an image sensor. The optical imaging lens and the electronic device can enable the lens to still have good optical performance under the condition that the length of the lens is reduced.

The invention provides a searchlight device for a recreational boat or other suitable vehicle, vessel or device, featuring a housing for mounting on the recreational boat or other suitable vehicle, vessel or device; a light arranged in the housing, responsive to a light control signal, for projecting bright illuminating light; and a low lux video camera also arranged in the housing, responsive to images in near total darkness, for providing a video camera signal containing information about the images in near total darkness, for allowing close quarter maneuvering in dim light without the need to activate the bright illuminating light so that an operator of the vehicle, vessel or other suitable device may operate safely while maintaining night vision and not impairing the vision of nearby vehicle, vessel or other suitable device.

A solid-state imaging device includes a plurality of two-dimensionally arranged photo diodes and a plurality of microlenses having substantially hemispherical shapes which cover the respective photo diodes. The microlens has a multilayer structure including at least a transparent resin upper layer which forms at least a portion of the substantially hemispherical shape, and a colored lower layer provided on a portion of the transparent resin upper layer which is located above the photo diode, with an interface between the colored lower layer and the transparent resin upper layer having a shape conforming to a surface of the photo diode.

The invention relates to an optical diffusion barrier with high haze and brightness and a liquid crystal display backlight source using the optical diffusion barrier. A diffusion particle consists of particles with two particle diameters, the large-diameter particles are mutually and tightly in contact and distributed on the surface of a base material, the small-diameter particles are filled in gaps among the large-diameter particles, and the diffusion particles comprise spherical particles with the following particle diameters in percentage by weight: 82-92% of spherical particles with the particle diameter of 15-30 microns, and 8-18% of spherical particles with the particle diameter of 0.5-6 microns; and the geometric diameter proportion of the large-diameter particles to the small-diameter particles is within 5 / 1-30 / 1, and the thickness of a diffusion coating is 5 / 10-6 / 10 of the maximum diameter of the diffusion particles. The optical diffusion barrier disclosed by the invention has higher haze and light condensation capability by controlling the particle diameters and the proportion of the two kinds of diffusion particles and controlling the thickness of the diffusion coating; in addition, the liquid crystal display backlight source manufactured by the optical diffusion barrier, disclosed by the invention, has very higher haze and brightness.

The invention relates to the technical field of solar application products, in particular to a solar dish-shaped condensing mirror with adjustable focus and an application thereof. The condensing mirror is a high-reflection laminated silver-coated glass mirror, the glass mirror is mounted on a dish-shaped glass support, the support is used for carrying the glass mirror, the carrying surface is in the shape of an arc, the glass mirror and the support are connected through a focus regulating mechanism, and the glass mirror can produce elastic deformation through the regulating mechanism, thereby realizing the focus regulation of the glass mirror. The flat plate tempered glass silver mirror can be concave and deformed by tensioning the flat plate tempered glass reflecting mirror through a focus regulating support and a regulating screw rod, thereby forming the dish-shaped condensing structure; and different condensing focuses can be achieved by appropriately regulating the tensioning degree of the screw rod (the tempered glass can bear a certain elastic deformation and not be broken). A plurality of dish-shaped condensing mirror modules are mounted on a solar tracking support, respective condensing focuses of the dish-shaped condensing mirror modules are irradiated to the same position, the processing process and the mounting method of the dish-shaped condensing mirror group with the adjustable focus are very simple, the cost is low, the large-scale popularization can be realized, and the high-efficient high-power condensation can be further achieved. The high-power condensation can be applied in high-efficient gallium arsenide solar power generation, heat collection power generation, high temperature and strong light utilization and the like.

An optical collector with multi-section circular arc relates to an optical collector utilizing solar energy, particularly a linear focusing reflecting type optical collector. The optical collector comprises a receiver (1), a reflector with multi-section circular arc (2) and a bracket (3), wherein the receiver (1) is above the reflector with multi-section circular arc (2) and is in the position ofthe focal line formed by the reflector with multi-section circular arc (2). The bracket (3), under the reflector with multi-section circular arc (2) is for fixing the reflector with multi-section circular arc (2) and extends out a supporting rod from the gap of the reflector with multi-section circular arc (2) to support the receiver (1). By adopting the reflecting type linear optical collector, the problems of the refracting type optical collector, that the cost is high, the size is difficult to amplify, the optical efficiency is limited by index of refraction, etc., can be solved. The reflector with multi-section circular arc instead of the parabolic reflector can obviously decrease the processing difficulty and manufacturing cost and also can decrease the mounting difficulty and promotethe concentrating ratio.

The invention relates to an internal-condensation capacity-reducing solar medium and high temperature heat collection pipe and a method for manufacturing the same. The heat collection pipe comprises a vacuum internal-condensation solar heat collector, wherein the vacuum internal-condensation solar heat collector consists of an outer cover tube which is made of a light-transmitting material, a heat absorption tube which is coaxial with the outer cover tube and a composite parabolic reflecting plate which is assembled between the outer cover tube and the heat absorption tube; a heat energy conductor is arranged in the vacuum internal-condensation solar heat collector; the heat energy conductor consists of a metal sleeve, a metal flow guide cavity tube which is assembled in the metal sleeve, and heat conduction media which are filled in the metal sleeve and the metal flow guide cavity tube; the metal sleeve is inserted into an internal cavity of the heat absorption tube and tightly contacted with the heat absorption tube; and a heat conduction heat medium transmission path is formed between the metal flow guide cavity tube and the metal sleeve. The preparation steps of the high temperature heat collection pipe are as following: manufacturing focus solar collector in vacuum, processing heat sensor, and then assembling and moulding. The internal-condensation capacity-reducing solar medium and high temperature heat collection pipe is high in heat collection efficiency, high in heat transfer speed and safe, and can convert solar energy into a medium and high temperature heat source for use.

The invention discloses a solar panel component and a processing technology. The solar panel component mainly comprises components, wherein the components comprise a battery piece, a glass layer, a backboard and a frame on the outer side, wherein the upper end of the battery piece is provided with a silicon nitride passivation antireflection layer; the electrode grid lines of the battery piece are formed in a way that fragmented main grid lines and grouped thin grid lines are arranged in parallel and are connected by auxiliary grid lines; and the frame comprises an integral frame and a detachable frame. By use of the solar panel component and the processing technology provided by the invention, the internal laminated structure and the external frame structure of the solar panel are improved to lower power loss, improve a photoelectric conversion rate and prolong the service life of the solar panel component.

The invention discloses a method for designing a panel receiving type compound parabolic concentrator. The method comprises the steps that the emergent light hole width and the geometric concentrating ratio C[G] of the CPC are designed as needed, the incident light hole width = C[G] * , the height H[1], the daylighting half-angle theta, the focal length of a parabola , and the distance between the optimal uniform face B[1]F[1] and an emergent light hole of the CPC are calculated, and then, the geometric structure size of the CPC is determined. According to the method for designing the panel receiving type CPC, the height H[1] of the CPC can be greatly reduced, the light intensity uniformity, on the optimal uniform face B[1]F[1], of the CPC can be improved after condensation, and the economy and condensation performance of the CPC are improved.