500results about How to "Improve spotlight effect" patented technology

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.

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 laser focusing optical system is provided with a laser beam source for projecting laser beams; a focusing optical system, which is arranged between the laser beam source and a medium to focus the laser beams in the medium and refocus the beams from the focusing point; a photodetector for detecting the beams refocused by the focusing optical system; and a laser emitting point shifting means, which can shift a position of the laser emitting point of the laser beams and a position of the photodetector, along an optical axis of the laser beams, corresponding to the refraction factor of the medium wherein the laser beams are focused and a distance between the surface of the medium and a focusing point.

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.

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.

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 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 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.

An image capturing lens system includes five lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. Each of the five lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The object-side surface of the first lens element is convex in a paraxial region thereof. The second lens element has negative refractive power. At least one surface among the object-side surfaces and the image-side surfaces of the five lens elements is aspheric. The image capturing lens system further includes an aperture stop disposed between an imaged object and the object-side surface of the second lens element.

The invention relates to the technical field of solar energy applying products, in particular to a one-dimensional light-condensing drawing-formed groove-type parabolic mirror and a manufacturing method thereof. The parabolic mirror comprises a high-reflection tempered composite glass mirror, wherein the glass mirror is arranged on a bracket; the bearing surface, which is used for bearing the glass mirror, of the bracket is arc-shaped; a drawing device is fixed on the glass mirror and connected with a connecting part on the bracket; and the glass mirror is elastically deformed and tightly attached to the arc-shaped bearing surface of the bracket under the action of drawing force produced between the drawing device and the connecting part. Downward pulling force is applied to the glass mirror through drawing force produced by a drawing screw rod and an adjusting nut, so that the glass mirror is deformed, the radian of the glass mirror is changed and the glass mirror is finally tightly attached to the support cambered surface of the bracket. Therefore, the radian of the glass mirror is determined and good light condensing effect can be achieved.