1170results about "Prisms" patented technology

A display system is provided The display system comprises a replicator arranged to receive spatially modulated light and replicate the spatially modulated light to form a plurality of replicas of the spatially modulated light by waveguiding between a reflective surface and a transmissive-reflective surface. The transmissive-reflective surface forms an output surface for the plurality of replicas of the spatially modulated light. The display system further comprises a light control device located in the optical path of the plurality of replicas of the spatially modulated light downstream from the output surface of the replicator. The light control device is arranged to compensate for the curvature of an curved optical component downstream from the light control device. The compensation is a function of the position on the output surface.

The utility model relates to an optical composite film. The optical composite film sequentially comprises a first prism layer, a first base material layer, a haze attaching layer, a second prism layer, a second base material layer and a high-haze diffusion layer from top to bottom. Wherein the first prism layer adopts a microstructure design, the bottom width of the first prism layer is smaller than that of the second prism layer, the bad phenomenon of light interference is avoided, the second prism layer is composed of a prism group composed of high prisms and low prisms, and multi-angle and multi-layer regulation and control of light are achieved. In addition, due to the arrangement of the haze attaching layer and the high-haze diffusion layer, the diffusion effect and the shielding performance of the optical composite film are enhanced. Through the integrated design, the functions of a traditional multi-layer optical film and a diffusion plate are combined into a single film, the product weight and thickness are reduced, the product structure and the assembly process are simplified, and the production efficiency and reliability are improved. High optical gain is maintained, high shielding performance is achieved, and the advantages of improving display image quality, reducing product weight and thickness, simplifying product structure and assembly process and the like are achieved.

A display selection button 10 comprises a light projecting unit 21, a light guide plate 13, a light receiving units 22, a control unit 30, and a printed sheet 14 and a LED 25. The light guide plate 13 has an incident surface 13a to which the light emitted from the light projecting unit 21 is incident, a plurality of prisms 13d that reflect incident light toward the side approaching or touching a finger and are provided at positions corresponding to push buttons 10c, and an exit surface 13b that emits the light reflected in the direction in which the finger approaches. The light receiving units 22 receive light emitted from the exit surface 13b and reflected from a finger. The control unit 30 detects the approach of a finger depending on the amount of light received by the light receiving units 22. The printed sheet 14 displays the desired numerals. The LED 25 emits light for displaying the desired numerals in the printed sheet 14.

The invention discloses a super-condensation composite brightness enhancement film and a liquid crystal display backlight module, and particularly relates to the technical field of brightness enhancement films.The super-condensation composite brightness enhancement film comprises a core layer, an upper-layer brightness enhancement structure and a lower-layer brightness enhancement structure, the core layer is a multi-layer film made of poly (ethylene naphthalate) and a copolymer thereof, the upper-layer brightness enhancement structure is fixed to the top of the core layer, and the lower-layer brightness enhancement structure is fixed to the bottom of the core layer; the upper-layer brightening structure comprises a plurality of light gathering blocks, the light gathering blocks are distributed on the top of the core layer in a linear array mode, the light gathering blocks are arranged to be in a trapezoid quadrangular prism shape or a hexagonal pyramid shape, and the lower-layer brightening structure is fixed to the bottom of the core layer. The large-angle light of the incident surface is subjected to primary convergence through the plurality of inverse prism structures at the bottom of the core layer, and the large-angle light of the emergent surface is subjected to secondary convergence through the plurality of concave trapezoidal quadrangular prism-shaped or hexagonal pyramid-shaped light condensation blocks at the top of the core layer, so that the light loss is reduced, and the brightness of the backlight center is improved; and the hexagonal pyramid-shaped light condensation block can also improve the uniformity of the visual angle.

A display system is provided. The display system comprises a replicator arranged to receive spatially modulated light and replicate the spatially modulated light to form a plurality of replicas of the spatially modulated light by waveguiding between a reflective surface and a transmissive-reflective surface. The transmissive-reflective surface forms an output surface for the plurality of replicas of the spatially modulated light. The display system further comprises a light control device located in the optical path of the plurality of replicas of the spatially modulated light downstream from the output surface of the replicator. The light control device is arranged to provide a first compensation for the curvature of a curved optical component downstream from the light control device. The first compensation is a function of the position on the output surface and is arranged to only partially counteract the curvature of the optical component and retain some distortion from the curvature of the optical component of at least one of the replicas compared to another of the replicas.

The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power; a prism having an incident surface, a reflecting surface, and an exit surface, and an angle between the reflecting surface and the optical axis being 45°; a stop; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power.

An apparatus and method for radiation measurement are used to determine clearance of a rotating gas turbine component. The apparatus includes a probe body on a stationary component outward of the rotating component and a pair of sensor assemblies coupled to the probe body. Each sensor assembly includes a plurality of prisms coupled to the probe body Each prism of the plurality of prisms has a distinct angular orientation to direct radiation from the focusing lens to the rotating component surface off-axis with respect to an axis of the respective radiation source of the pair of radiation sources and with less directional variation than radiation from the respective radiation source.

The invention belongs to the technical field of mobile phone periscope processing, and particularly relates to a mobile phone periscope prism processing technique. Comprising the following steps: S1, performing screen printing on a D surface, baking a finished product after screen printing, performing ultrasonic cleaning after baking, and inspecting a semi-finished product after cleaning; s2, plating an HR film on a B / C surface, removing and trimming by laser after plating the B / C surface, and performing ultrasonic cleaning after laser removal; s3, water-soluble ink screen printing is conducted on the face A, the face A is baked after screen printing, a groove and seven faces ABCJGEF are subjected to spin coating after baking, a finished product is baked after spin coating, the water-soluble ink on the face A is removed after baking, and then ultrasonic cleaning and cleaning inspection are conducted; and S4, plating an AR film on the surface A, performing silk-screen printing on the surface A, baking a finished product after silk-screen printing, cleaning the baked finished product, and inspecting the finished product. According to the method, the problem that the HR film is scrapped after the HR film is plated due to the fact that the optical window area is dirty and polluted after silk-screen printing and the cleaning is not thorough is solved, and meanwhile, the problem that the HR film at the non-optical window position is overlaid on the silk-screen printing ink surface after the HR film is plated by a traditional process and the surface quality is caused is avoided.

The utility model discloses a receiving end assembly of a high-speed optical module, which belongs to the technical field of optical devices and comprises a Receptacle optical interface, an optical fiber, a capillary tube, a lens, a wavelength division multiplexer, an array lens, a prism and a substrate, the optical fiber is used for transmitting light, the capillary tube, the lens, the wavelength division multiplexer, the array lens and the prism are fixed on the substrate, the Receptacle optical interface is connected with the optical fiber, and the optical fiber is connected with the substrate. The lens is located between the capillary tube and the wavelength division multiplexer, the array lens is located between the wavelength division multiplexer and the prism, the capillary tube converges light rays and enables the light rays to enter the lens, the lens enables collimated light converged by the capillary tube to enter the wavelength division multiplexer, the wavelength division multiplexer demultiplexes wavelengths, four paths of parallel light are formed and enter the array lens, and the array lens is located between the prism and the array lens. The array lens gathers incident light, and the gathered light beam is emitted from the prism and then gathers to the focus position. According to the invention, four light beams of 0.75 Pitch are converted into four light beams of 0.25 Pitch by using the turning prism; according to the invention, four light beams with the interval of 0.25 mm can be realized at the receiving end of the optical module.

The invention discloses a periscope head image difference compensation method and system, a computer and a storage medium, a periscope head comprises a reflecting prism, a lens group and a diffractive optical element, and the non-reflecting surface of the reflecting prism is provided with a polarization coating; the method comprises the following steps: constructing an optical path model according to design requirements of a periscope lens module, and carrying out aberration analysis on the optical path model; calculating a chromatic aberration compensation phase function of the diffractive optical element according to a chromatic aberration compensation formula; calculating a spherical aberration compensation phase function of the diffractive optical element according to a spherical aberration expansion formula; and calculating a total phase function of the diffractive optical element, and performing aberration compensation on the optical path model according to the total phase function. According to the long-focus periscope lens module, the total aberration of the periscope lens module can be compensated by utilizing the cooperation of the diffractive optical element and the reflecting prism with the polarization coating, so that the size of the long-focus periscope lens module is reduced, and the imaging quality of the long-focus periscope lens module is improved.

The utility model provides a prism and a display device, the prism comprises a first surface, a second surface, a third surface and a fourth surface, the first surface, the second surface and the third surface are connected pairwise, one end of the fourth surface is connected with one end of the second surface, and the other end of the fourth surface extends in a direction far away from the third surface; wherein the image source light enters the first surface from the third surface, is totally reflected to the second surface, is finally totally reflected to the first surface and is transmitted to the eyes of a human body; the real light is transmitted into human eyes through the fourth surface, the second surface and the first surface. The prism is provided with the four surfaces, the first surface and the second surface are used for totally reflecting the light emitted by the image source and the light of the real world, and the third surface and the fourth surface are used for transmitting the light of the image source and the light of the real world, so that the light angle of the light of the image source and the light of the real world entering the prism is corrected. The image imaging effect of the prism is enhanced, so that the display device is smaller and lighter.

The invention relates to a microprism reflective film with three kinds of triangular pyramid combinations and a manufacturing method of a mold of the microprism reflective film, the surface of the microprism reflective film is formed by an array of identical parallelogram unit bodies (1), each parallelogram unit body (1) is composed of four identical triangular pyramids A, one triangular pyramid B and three identical triangular pyramids C, the directions of the four triangular pyramids A and the directions of the three triangular pyramids C and the triangular pyramids B form 180 degrees, and the three triangular pyramids C and the triangular pyramids B are arranged among the four triangular pyramids A in a staggered manner; the bottom surfaces of the triangular pyramids A, B and C are the same equilateral triangles, the inclination angles of the three pyramids of each triangular pyramid A are alpha / 2, the inclination angles of the three pyramids of each triangular pyramid B are beta-alpha / 2, and the inclination angles of the three pyramids of each triangular pyramid C are alpha / 2, alpha / 2 and beta-alpha / 2 respectively. According to the method, the performance under different application conditions can be reasonably optimized, so that wide-angle performance improvement and optimization and balance of overall comprehensive performance can be realized.

Imaging lens arrangement (100), comprising: an optical plastic element (110), comprising: an incidence surface (111), wherein an imaging light enters the optical plastic element (110) through the incidence surface (111); a reflective surface (112), wherein the imaging light changes direction through the reflective surface (112); an exit surface (113), wherein the imaging light exits the optical plastic element (110) through the exit surface (113); and at least one connecting surface (130) which is used to connect the incident surface (111), the reflecting surface (112) and the exit surface (113), wherein the at least one connecting surface (130) comprises: a sprue (131) which is arranged on the at least one connecting surface (130), and wherein the sprue (131) is raised relative to an adjacent section (134) of the at least one connecting surface (130); a divergent nozzle surface (132) connected to the sprue (131) and the adjacent section (134), wherein the divergent nozzle surface (132) diverges from the sprue (131) and extends in a direction of the adjacent section (134); and a gate remnant (133) which is arranged on a surface of the sprue remnant (131), wherein a contour of the gate remnant (133) is linear and the gate remnant (133) extends over the surface of the sprue remnant (131); wherein, when projected along a direction in a front view of the adjacent section (134) of the at least one connecting surface (130), a projection surface of the divergent nozzle surface (132) is As, a projection surface of the sprue residue (131) is Ag, and the following condition is met: 0.08 ≤ As / Ag ≤ 0.68.

The invention relates to a manufacturing method of a microprism reflective film die integrating two triangular pyramids and a reflective film, and the manufacturing method of the die comprises the following steps: 1, respectively rotating a die base material on a B-axis rotary table to 0 degree, 120 degrees and 60 degrees, and machining a first tool to a third tool by using a first tool with a tool angle alpha mounted on a fly-cutter disc; the mold base material is rotated to be located at the 0-degree position, the 120-degree position and the 60-degree position, machining of the fourth tool, the fifth tool, the sixth tool and the sixth tool is conducted, in the machining of the fourth tool, the fifth tool, the sixth tool and the sixth tool, the first tool is used for machining, the second tool is used for machining, the first tool and the second tool are symmetrical tools, and the inclination angles of the two sides are the same. While better performance indexes under different application conditions are obtained, the influence of large conical surface angle deflection angle processing or asymmetric design on optimization and balance of the retroreflection performance of 0 / 90 / 180-degree orientation of the reflective film can be reduced.

The present invention discloses a device and method for realizing simultaneous equal optical path confocal detection of both sides of a crystal grain by using a polarization image splitting method. The device comprises a CMOS or CCD camera, a telecentric imaging lens, a polarization image splitting prism assembly, a polarization cube beam splitter, a right-angle image rotation prism, a semiconductor crystal grain and a transparent glass stage for holding the semiconductor crystal grain, which are sequentially arranged in the direction of the optical path. The device and method of the present invention have the following advantages: although the double images of adjacent sides of the semiconductor crystal grain are spatially separated on the polarization image splitting prism assembly, the polarization imaging of both sides of the semiconductor crystal grain satisfies complete equal optical path, i.e., △=0, or quasi-equal optical path △≈0.

An optical film structure and a display device. The optical film structure comprises: a diffusion film (11), a first prism film (12) arranged on the diffusion film (11), and a second prism film (13) arranged on the side of the first prism film away from the diffusion film (11); the first prism film (12) comprises a first substrate (121) and first prisms (122) arranged on the side of the first substrate away from the diffusion film (11), and an inclination angle (θ1) of each first prism (122) ranges from 60 degrees to 80 degrees; the second prism film (13) comprises a second substrate (131) and second prisms (132) arranged on the side of the second substrate (131) away from the diffusion film (11), and an inclination angle (θ2) of each second prism (132) ranges from 20 degrees to 40 degrees; and a second vertex angle is provided on the side of each second prism (132) away from the second substrate (131), and the second vertex angle is an obtuse angle. The luminance of lateral output light can be improved, so that a corresponding display device can improve the optical efficiency while satisfying specifications of luminance and viewing angle in the TCO certified standard.

The present technology pertains to a measurement device capable of suitably measuring the spectrum of a measurement light. A measurement device according to the present technology is provided with: a luminous flux splitting unit for splitting substantially parallel luminous flux into a first luminous flux and a second luminous flux, refracting and emitting the first luminous flux, and emitting the second luminous flux in a direction symmetrical to the emission direction of the first luminous flux on the basis of a first reference plane that includes the traveling direction of the substantially parallel luminous flux, thereby causing the first luminous flux and the second luminous flux to interfere with each other; a light-condensing unit for condensing the first luminous flux and the second luminous flux on a second reference plane that includes the traveling direction of the substantially parallel luminous flux and is orthogonal to the first reference plane; a sensor unit for detecting interference light between the first luminous flux and the second luminous flux; and a calculation unit for calculating the spectrum of the substantially parallel luminous flux on the basis of a detection result by the sensor unit. The present technology can be applied to, for example, a spectroscopic measurement device.

The invention provides an image source, a head-up display and a carrier, the image source comprises a display module and a prism assembly, and the display module comprises a plurality of pixel units; the prism assembly comprises a plurality of cylindrical prisms; a light beam emitted by the pixel unit and emitted by the cylindrical prism is an image light beam, the image light beam comprises a plurality of emergent light rays, an acute included angle between the projection of the emergent light rays in the first plane and a third direction is a longitude angle, and an acute included angle between the projection of the emergent light rays in the second plane and the third direction is a dimension angle; the emergent light comprises zero-dimension light and non-zero-dimension light, the dimension angle of the zero-dimension light is equal to 0 degree, the dimension angle of the non-zero-dimension light is not equal to 0 degree, and the broadening angle of the image light beam at the position of the zero-dimension light is larger than the broadening angle of the same image light beam at the position of the non-zero-dimension light; wherein the broadening angle is the difference value between the maximum value and the minimum value of the longitude angle of the image light beam under the same dimension angle. According to the embodiment of the invention, the crosstalk of light projected to the eye box is reduced, and the display effect is improved.

The invention belongs to the technical field of optical beam splitting elements, and particularly relates to a beam splitter prism depolarization film, a preparation method thereof, a beam splitter prism and a preparation method thereof. The beam splitter prism depolarization film provided by the invention comprises a first SiO2 film layer, a first Ta2O5 film layer, a first Al2O3 film layer, a metal silver layer, a second Al2O3 film layer, a second Ta2O5 film layer and a second SiO2 film layer which are sequentially laminated, wherein the first SiO2 film layer is in contact with the surface of a substrate. According to the beam splitter prism depolarization film provided by the invention, the number of film layers is obviously reduced, the total film thickness is obviously reduced, the film layer thickness is greatly optimized, the film material consumption cost and the equipment energy consumption are reduced, and the processing efficiency is greatly improved; meanwhile, the risks of film layer breakage and electroplated layer falling are reduced; the film layer contains less thin layers, the equipment monitoring is more accurate, the actual effect is closer to the design, the achievable specification is more strict, and the practical value is excellent.

The invention relates to a composite optical film, which designs an integrated three-layer structure by integrating multiple layers of functional materials, and comprises a first prism layer, a second prism layer and a diffusion layer. According to the structure, the cutting and assembling processes are simplified, the production efficiency is improved, and high optical gain, high stiffness and excellent warping resistance are achieved through precise optical structure design. The second prism layer serves as a core layer and comprises a plurality of first prism structures and second prism structures which are arranged in parallel, the bottom width difference design is adopted, the diffusion layer adopts unique trapezoidal steps as a front diffusion structure, and the height, the distance and the sand blasting haze of the steps are controlled through the machining technology and the surface treatment technology. According to the invention, high-efficiency and uniform scattering of light is realized, the brightness and contrast of a display picture are improved, uneven brightness and glare phenomena are avoided, high-efficiency management and optimized output of light are realized, the brightness and contrast of the display picture are improved, and more comfortable and fine visual experience is provided.

The utility model discloses a prism structure, a visual angle expanding film, a backlight module and a display device, and relates to the technical field of optical films. The prism structure comprises a plurality of first prism parts and a plurality of second prism parts, the top of the second prism part is connected with the bottoms of the first prism parts; wherein the cross sections of the first prism parts are isosceles right triangles, the cross sections of the second prism parts are isosceles trapezoids, and the top width of the second prism parts is the total bottom width of the first prism parts. According to the utility model, the problems that the 1 / 2 light intensity range in the horizontal direction of a general display is within + / -50 degrees, and the 1 / 2 light intensity range in the vertical direction of the general display is within + / -35 degrees due to a single prism sheet, or a diffusion film and prism sheet bonding (DOP) / micro lens film and prism sheet bonding (MOP) and other structures with single prism layers in the current brightness enhancement film technology are solved; if a double-layer prism framework optical film scheme is used, the 1 / 2 light intensity range in the horizontal direction and the 1 / 2 light intensity range in the vertical direction are both lower than + / -35 degrees.

A penta prism collimator having four freeform surfaces that fold the optical path of light received from a microdisplay collimates light for coupling to a waveguide. In some embodiments, the freeform surfaces are toroidal surfaces made from a single injection-molded element, such as a single piece of plastic. The freeform surfaces collimate the light at a variety of distances from an input pupil of a waveguide, allowing for more freedom of placement within a frame of a WHUD.

A wavefront manipulator which comprises a holographic assembly and an optical element is provided. The optical element includes at least one surface, which is totally reflective for an ascertained range of incidence angles, for emitting light waves onto the holographic assembly. The holographic assembly includes at least one reflection hologram for reflecting light waves emitted onto the holographic assembly via the optical element. The optical element includes a coupling device for coupling light waves into the wavefront manipulator. The coupling device includes at least one prism.

An image capturing optical system, an image capturing device and an electronic device, the image capturing optical system including an image capturing optical lens respectively corresponding to a first mode and a second mode. The image capturing optical lens includes, in order from an object side to an image side, an object-side lens group and a common lens group, where the object-side lens group is a first-mode object-side lens group or a second-mode object-side lens group, and the common lens group includes, in order, a middle lens group and a last lens group. When the image capturing optical lens is in a first mode, the first mode object-side lens group and the common lens group are sequentially arranged along the path direction of an optical path; when the image capturing optical lens is in a second mode, the second mode object-side lens group and the common lens group are sequentially arranged along the path direction of the light path. When specific conditions are met, the use freedom degree of the module space can be improved.

According to the invention, a light guide plate-type video display device and a video display system that are capable of displaying a video with less color deviation and less video distortion are provided. A video display device 101 configured to display a video includes a video projection unit 200 configured to project video light, a video deflection unit 210, and a light guide portion 230. The video deflection unit 210 deflects video light emitted by the video projection unit 200 and causes the video light to propagate to the light guide portion 230, and the light guide portion 230 causes the entered video light to propagate therein and outputs the video light. Here, the video deflection unit 210 or the light guide portion 230 is configured to reduce color dispersion of the video light outputted from the light guide portion 230.

A beam splitter device (300, 400, 500, 600) includes an optical prism (310, 410, 510, 610) having a first prism body (310a, 410a, 510a, 610a) with a first optical axis (OA31, OA41, OA51, OA61) connected to a second prism body (310b, 410b, 510b, 610b) with a second orthogonal optical axis (OA32, OA42, OA52, OA62) at a first interface (I3, I4, I5, I6) between a second face (f2) of the first prism body (310a, 410a, 510a, 610a) and a third face (f3) of the second prism body (310b, 410b, 510b, 610b). In one aspect a first prism body (310a, 410a, 510a, 610a) includes a first face (f1) that is configured to receive incident light (320, 420, 520, 620), where a second prism body (310b, 410b, 510b, 610b) includes a fourth face (f4) configured to output polarized light (330, 430, 530, 630). In another aspect a fourth face (f4) is antiparallel to the first face (f1), a fourth face (f4) is antiparallel to a first interface (I3, I4, I5, I6), and a polarized light output from a fourth face (f4) of a second prism body (310b, 410b, 510b, 610b) includes one of s-polarized light (S3, S4, S5, S6) and p-polarized light (P3, P4, P5, P6) and extends substantially parallel to a direction (D3, D4) of the incident light (320, 420) received at the first face (f1) of the first prism body (310a, 410a).

An imaging lens system is provided. The imaging lens system includes a lens group including a plurality of lenses; and an optical path folding member disposed between the lens group and an imaging plane. The lens group may include three or more lenses sequentially arranged from an object side. The optical path folding member may include a first prism and a second prism. At least one of the first prism and the second prism may include a visor that prevents a flare.

An optical navigation device includes a case, an illumination light source, an illumination lens, an optical detector and a first optical element. The case is movably located above a navigation surface. The illumination light source is disposed inside the case and adapted to emit an illumination beam. The illumination lens is disposed under the illumination light source and has an output surface. The illumination beam passes through the output surface to project onto the navigation surface. The optical detector is disposed inside the case and adapted to detect a reflection beam from the navigation surface. The first optical element is disposed adjacent to the output surface of the illumination lens and extended to an outer edge of the illumination lens, and adapted to eliminate a stray light beam generated by the illumination beam propagated between the illumination lens and the navigation surface from reaching the navigation surface.

The invention provides an optical system and a laser radar, the optical system comprises a light source, a micro lens assembly and a micro prism assembly, and the micro lens assembly is used for collimating light emitted by the light source; the microprism assembly comprises a light-transmitting substrate, a first microprism array, a second microprism array and a third microprism array, the first microprism array is formed on the first surface of the light-transmitting substrate, the second microprism array is formed on the second surface of the light-transmitting substrate, and the third microprism array is formed on the first surface and / or the second surface of the light-transmitting substrate; microprisms in the first microprism array, the second microprism array and the third microprism array correspond to microlenses in the microlens array; the optical system is installed on the laser radar in the horizontal direction, and the pitching field angle of the laser radar is increased through the external reflection effect of the first microprism array, the internal reflection effect of the second microprism array and the refraction effect of the third microprism array.