204 results about "Single lens" patented technology

The invention belongs to the technical field of radiation effect and radiation hardening of semiconductor devices and integrated circuits, and particularly relates to a single event effect laser simulation system based on Bessel beam shaping. A Bessel beam shaping and focusing module based on an axon lens is introduced and composed of the axon lens and two lenses, namely a single lens and a focusing lens, a Gaussian beam of an incident beam is shaped into a quasi-Bessel beam, and the quasi-Bessel beam is utilized to irradiate a semiconductor device to be detected. The axial distribution of the light beam is kept unchanged in a range of hundreds of microns, and the focusing breaking through the diffraction limit is realized in the radial distribution, so that the effect closer to the heavy ion charge deposition track is generated. The technology can solve the problem that a multilayer structure device, a thick sensitive region device and a wide forbidden band device are difficult to test through traditional laser simulation, and has important practical value for promoting laser simulation of the single event effect.

The invention relates to a high-precision historic building digital building block system and a modeling method thereof, and relates to the technical field of digital cultural heritage protection and education, and the system comprises a three-dimensional modeling module which is used for obtaining millimeter-level precision geometric data of historic building components through employing a laser point cloud and multi-view image fusion technology, the module acquires data through a laser scanner and a digital single lens reflex and realizes spatial registration by using a feature point matching algorithm. Through the laser point cloud and multi-view image fusion technology, millimeter-level precision geometric data acquisition of the ancient building component is realized, the accuracy of a digital model and the application of a parametric modeling algorithm are ensured, the building block units can be generated and scaled in proportion to adapt to different application scenes, and meanwhile, the consistency of geometric characteristics is kept; the design of a standardized plug interface module is based on topological optimization, connection requirements of different ancient building elements are automatically adapted, and the characteristics of a tenon-and-mortise structure are reserved.

Optical systems and lens assemblies suitable for use with, for example, AR applications on portable electronic devices, including wearable devices such as electronic eyewear. The lens assembly supports a single lens or multiple lenses. The lens assembly includes a lens and a flange that defines a recess for receiving an adhesive. When the lens is placed on the flange, the adhesive secures the lens to the flange. In some implementations, the lens includes a band or strip of paint or other indicia applied along the perimeter of the lens to inhibit visibility of any excess adhesive. A lens assembly that supports both a front and rear lens is particularly useful for presenting AR experiences.

A solar wall lamp comprises a lamp bottom shell, a photovoltaic panel, a photovoltaic base and a lamp single lens, the lamp bottom shell and the lamp single lens are connected together in a clamped mode, the photovoltaic panel is arranged on the photovoltaic base plate, two battery bins are arranged on the back face of the lamp bottom shell, a detachable battery cover is arranged on each battery bin, and the lamp single lens is arranged on the photovoltaic base plate. Two circles of vertical walls are annularly arranged on the peripheral edge of the side, opposite to the battery cover, of the battery bin, a circle of containing groove is formed between the two vertical walls, the side wall of the battery cover is buckled to the vertical wall on the outer side, a circle of vertical wall arranged in the containing groove is annularly arranged in the battery cover, and a circle of first waterproof sealing ring is arranged between the side wall of the battery cover and the fixing wall. A circle of waterproof groove is annularly formed in the peripheral edge of the side, opposite to the lamp single lens, of the lamp base, a circle of second waterproof sealing ring is arranged in the waterproof groove, the side wall of the lamp single lens is buckled in the waterproof groove, the four corners of the frame of the photovoltaic base are each provided with a buckling position used for fixing a photovoltaic panel, and the photovoltaic lamp is convenient to disassemble and maintain.

The invention discloses a DUV microscope objective with high NA and long working distance. The microscope objective is sequentially composed of a first lens group with negative focal power, a second lens group with positive focal power and a third lens group with positive focal power from an image side to an object side along an optical axis. The first lens group comprises a biconcave lens and a negative meniscus lens, the second lens group contains a diaphragm and is composed of a plurality of positive lenses, and the third lens group is composed of two positive meniscus lenses with concave surfaces facing the object side. By strictly controlling the focal length proportional relation (1 < = f1 / f < = 3, 11.2 < = f2 / f < = 12.2, and 12.7 < = f3 / f < = 13.7) and key structure parameters of the three groups of lenses, and by adopting an aspheric and full single lens structure, the contradiction between a high numerical aperture and a long working distance is cooperatively solved. According to the invention, the excellent performance that NA is greater than or equal to 0.85 and the working distance is greater than or equal to 14.6 mm at the wave band of 248nm is realized, the aberration correction is good, the service life is long, and the optical system is suitable for semiconductor detection and other precise optical fields.

The display panel, the display device, the adjusting method and the related equipment are provided, and the display panel is improved by adjusting the light path adjustment layer. The lens with different curvature radii is added or the single lens is designed as the lens containing multiple curvature radii. In this way, the light path of the light emitted by the light emitting layer at both ends of each lens is optimized, so that the light path can converge at a point after passing through the light path adjustment layer, thereby reducing the crosstalk influence caused by the light path adjustment layer and improving the yield of the product.

The present application relates to the technical field of optical aspheric surface, especially points to a kind of free curved surface characterization method based on CGH lens zero position compensation detection optical path, with the detection of free curved surface as the guide, based on zero position compensation detection principle, according to ray tracing method, Snell's law, diffraction principle and equal optical path principle, using the parameters required by interferometer incident wave front as plane wave, compensator as single CGH lens zero position compensation detection system indirectly characterizes free curved surface shape, by using XY polynomial and Zernike standard phase polynomial, the mathematical description of free curved surface is realized in design stage can determine its measurement scheme, and according to the characterization method self-defined a kind of aspheric surface type, called zero position free curved surface.The free curved surface characterization method improves the degree of freedom of free curved surface shape and the feasibility of zero position compensation method, reduces the detection difficulty of free curved surface shape, realizes the function of zero position free curved surface design can be detected.

The application provides a continuous zoom optical system and a stereomicroscope for the stereomicroscope, and the optical lens unit comprises, in sequence along a main optical axis, an upper fixed lens group, a compensation lens group, a middle fixed lens group, a zoom lens group and a lower fixed lens group; a variable diaphragm is arranged between the middle fixed lens group and the zoom lens group along the main optical axis; the upper fixed lens group, the compensation lens group, the zoom lens group and the lower fixed lens group are all configured as double lens combinations, the focal length values of the upper fixed lens group and the zoom lens group are negative, and the focal length values of the compensation lens group and the lower fixed lens group are positive; the middle fixed lens group is configured as a double-concave single lens; the compensation lens group and the zoom lens group are axially moved along the main optical axis based on a first zoom fitting curve and a second zoom fitting curve respectively; and the advantages are that the system has smooth magnification, suppresses vignetting phenomenon, and dynamically adjusts the numerical aperture, the depth of field and the light throughput to adapt to different scene requirements.

The utility model provides a reflection core shift detection device for a single lens or a lens group, and belongs to the field of advanced manufacturing. A single lens or lens group reflection core shift detection device comprises a detection light path system, and the detection light path system comprises a receiving target surface, a focusing lens group, a semi-reflecting and semi-transmitting beam splitter prism, a lens I, a lens II, a detected lens and a light source. A light source enters from one side of the semi-reflecting and semi-transmitting beam splitter prism, and the semi-reflecting and semi-transmitting beam splitter prism divides a light beam generated by the light source into a reflecting light path and a transmitting light path; the transmission light path is emitted to the detected lens through the lens I and the lens II in sequence, and the lens I and the lens II are respectively vertical to the optical axis of the transmission light path; the reflection light path is emitted to the receiving target surface through the focusing lens group, and the focusing lens group is perpendicular to the optical axis of the reflection light path. The reflection core shift detection device for the single lens or the lens group can simultaneously detect the core shift of two surfaces of the lens or the lens group, is convenient and fast, and improves the detection efficiency.

The present application relates to the technical field of optical instruments, and discloses a microscope objective, which is suitable for at least a temperature environment of 50K to 150K and comprises: a front group unit, which comprises at least a first lens and a second lens arranged in sequence along an optical path, and is suitable for converging light rays and correcting spherical aberration; a middle group unit, which is arranged on the rear side of the optical path of the front group unit, comprises at least a first middle group and a second middle group, and is arranged in sequence along the optical path, each middle group is provided with at least two lenses arranged at intervals, and is suitable for correcting chromatic aberration; and a rear group unit, which is arranged on the rear side of the optical path of the middle group unit and comprises at least two lenses arranged at intervals; each lens contained in the front group unit, the middle group unit and the rear group unit is a single lens. By arranging each lens as a single lens, the combination connection of each unit and the whole microscope objective is avoided, the problems of damage, falling or air leakage in an extreme environment such as low temperature are avoided, and the application in a low-temperature environment is met.

The invention relates to a continuous zooming large objective lens system for double depth-of-field fusion. The system is sequentially provided with a large objective lens system, a beam splitting system, a zoom system and an imaging system along a light path, wherein the large objective lens system comprises protective glass, a movable negative lens group (single lens) and a fixed positive lens group (double bonding lens). Continuous zooming is achieved by moving the negative lens group along the optical axis, the focal length range is 240-445 mm, the working distance is adjustable (135-350 mm), and the operation surface observation range is 40-100 mm. According to the system, an apochromatic technology is adopted, H-K9L and H-ZF6 optical glass with abnormal dispersion coefficients is selected, and the MTF value is larger than or equal to 0.5 at 35l p / mm under high magnification and is close to the diffraction limit. The invention has the innovation points that the structure (a single lens and a double bonding lens) is simplified, the mechanical compensation zoom design and a large exit pupil diameter (phi 60-71mm) matching beam splitting system are adopted, and the problems of unsmooth zoom curve, complex process and insufficient exit pupil matching in the prior art are solved.

The utility model relates to coaxial light source technical field discloses a kind of high parallelism coaxial light source, including panel, the first side plate is fixedly connected in the panel bottom, the second side plate is fixedly connected in the panel bottom, the installation side plate is fixedly connected in the second side plate side wall, the anti-reflection lens is fixedly connected in the panel top, the first side plate side wall is fixedly connected with light splitter, the light splitter other side is fixedly connected in the second side plate side wall, the connecting piece is fixedly connected in the panel bottom, the lens barrel is fixedly connected in the connecting piece side wall.In the utility model, light source is generated by high-power aluminum base lamp plate, the effect that light source can be more finely adjusted light propagation direction is connected between first collimating lens and second collimating lens, the problem that single lens cannot be fully corrected as parallel light when traditional single lens collimation, resulting in lower light parallelism precision is solved, and the stability of high parallelism coaxial light source is improved.

The application provides a compact internal focusing wide-angle photographic lens, which comprises, in sequence from the object side to the image side along the optical axis, a first lens group with negative refractive power, an aperture stop, a second lens group with positive refractive power, and a third lens group with negative refractive power; during the focusing process from infinity to a close distance, the second lens group moves along the optical axis towards the object side; the first lens group contains at least two pieces of meniscus negative lenses, one of which is an aspheric lens, and satisfies the following condition formula: -7<F1 / F<-3, (1); the second lens group satisfies the following condition formula: 0.5<F2 / F<0.9, (2); wherein F represents the focal length of the photographic lens, F1 represents the combined focal length of the first lens group, and F2 represents the combined focal length of the second lens group. The application focuses by adopting the mode of internal single lens group movement, and good imaging quality and compact lens size are realized through reasonable optical design.

The utility model discloses a single lens reflex one-time imaging camera with a replaceable lens, which comprises a camera body and photographic paper arranged in the camera body, and further comprises a replaceable lens bayonet, a mechanical shutter system, a single lens reflex optical view finding system and an FDU instant imaging module, the camera further comprises an interchangeable lens, the interchangeable lens is connected with the camera body through an interchangeable lens bayonet, and the interchangeable lens bayonet is connected with the camera body through a clamping device. The single lens reflex optical framing system comprises a reflector assembly, a pentaprism structure and a viewfinder, the reflector assembly is arranged behind the replaceable lens bayonet, the position of the reflector assembly is controlled through a mechanical shutter system to achieve switching between framing and shooting, and light enters from the replaceable lens, is reflected to the pentaprism structure through the reflector assembly and is finally projected to the viewfinder; the mechanical shutter system is arranged behind the reflector assembly; according to the scheme, the universality of the camera is optimized, and a user can freely replace the lens according to different scenes and enjoy the convenience of instant imaging at the same time.

The present application relates to the technical field of optical aspheric surface, especially refers to a kind of splicing aspheric surface characterization method based on CGH lens zero position compensation detection optical path, with the detection of aspheric surface as the guidance, based on zero position compensation detection principle, according to ray tracing method, Snell's law, diffraction principle and equal optical path principle, using the parameters required by the zero position compensation detection system of interferometer incident wave front as plane wave, compensator as single CGH lens and diffraction surface as binary optical surface 3 or binary optical surface 4 to characterize aspheric surface surface shape, and according to the aspheric surface type defined by the characterization method, it is called zero position splicing aspheric surface.According to the splicing aspheric surface characterization method, the measurement scheme can be determined in the design stage through the mathematical description of splicing aspheric surface, which avoids the influence of stray light and projection distortion of CGH detection, reduces the detection difficulty of splicing aspheric surface surface shape, and realizes the function of zero position splicing aspheric surface design.

The invention provides an optical lens, a camera module and an electronic device, the optical lens comprises a first lens group, a first prism and a second lens group which are sequentially arranged from an object side to an image side, the first lens group has positive focal power, the first lens group is a focusing lens group, and the first lens group is used for receiving light emitted into the optical lens; the first prism is used for reflecting the light from the first lens group at least twice; the second lens group has negative focal power, the second lens group is a focusing lens group, and the second lens group is used for receiving the light emitted from the first prism; wherein the optical lens can selectively move at least one lens group in the first lens group and the second lens group so as to realize optical focusing of the optical lens. The first lens group and the second lens group are focusing lens groups, and the optical lens can complete focusing through alternate movement of the two lens groups, so that the focusing stroke of a single lens group can be reduced, the movement precision of the lens groups can be improved, and the focusing precision of the optical lens can be improved.

This invention provides a catadioptric shortwave infrared imaging spectrometer, comprising, in order of light incidence, an entrance slit, a plane mirror, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, a grating, and an imaging sensor. The plane mirror, together with the upper portions of the first, second, third, fourth, fifth, sixth, and seventh lenses, forms a collimation system. The grating, together with the lower portions of the seventh, sixth, fifth, fourth, third, second, and first lenses, and the imaging sensor, together form an imaging system. Collimation and imaging share a single lens group, resulting in a compact structure, easier aberration correction, simpler assembly and adjustment, better image quality, lower tolerance sensitivity, and reduced assembly difficulty.

A display optical system configured to enable an image displayed on a display element to be observed includes, in order from a display element side to an observation side, a first lens having positive refractive power, a second lens having positive refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, and a fifth lens having positive refractive power. Each of the first lens, second lens, third lens, fourth lens, and fifth lens is a single lens that is not a cemented lens. A predetermined condition is satisfied.

The invention discloses an earth and rock material dam overtopping burst traceability erosion parameter testing device, and relates to the technical field of earth and rock material dam burst risk research, the earth and rock material dam overtopping burst traceability erosion parameter testing device comprises a model groove, the bottom of the model groove is fixedly provided with four support legs, and the earth and rock material dam overtopping burst traceability erosion parameter testing device can be used for testing the overtopping burst traceability erosion parameter of the earth and rock material dam. By arranging the water inlet and outlet assembly and the shooting assembly, the water inlet and outlet assembly accurately controls the flow and pressure of water flow entering the model groove through a pressure stabilizing barrel and an electromagnetic flowmeter, it is ensured that the water flow scouring condition in the test is stable and quantifiable, flow instability caused by water flow pressure fluctuation is avoided, and therefore the test accuracy is improved; the shooting assembly improves the image quality while reducing the influence of external light on the test environment through a high-power flash lamp and a single lens reflex, the instantaneous state of erosion of the water flow to the soil body can be clearly observed through a shot picture, high-quality image data is provided for subsequent analysis, and the test accuracy is further improved.

The invention discloses a wide-angle large-aperture pixelated vehicle lamp optical structure and a vehicle lamp and a vehicle using the wide-angle large-aperture pixelated vehicle lamp optical structure. The wide-angle large-aperture pixelated vehicle lamp optical structure comprises a light source used for emitting light and a lens assembly arranged on the light emitting side of the light source. The lens assembly comprises a sixth lens, a fifth lens, a fourth lens, a third lens, a second lens and a first lens which are sequentially arranged in the light emitting direction. The first lens has positive focal power; the second lens has negative focal power; the third lens has positive focal power; the fourth lens has positive focal power; the sixth lens has positive focal power; the fifth lens is a single lens with negative focal power; or the fifth lens is a balsaming lens formed by a lens I with negative focal power and a lens II with positive focal power; the focal length f2 of the second lens and the effective focal length f of the lens assembly satisfy 0.9 lt; f2 / flt; and 1.5. The high-resolution pixelated LED lamp can meet the requirements of high-efficiency and large-angle illumination, has high resolution and meets the high-resolution pixelated illumination effect.

This invention discloses a long working distance diffraction-limited microscope objective and optical tweezers for optical tweezers. The microscope objective comprises five lens groups from the object side to the image side. The first lens group includes cemented first and second lenses; the second lens group includes cemented third and fourth lenses; the third lens group includes cemented fifth and sixth lenses; the fourth lens group includes cemented seventh and eighth lenses; and the fifth lens group includes ninth and tenth lenses. The first to tenth lenses are respectively a biconcave lens, a meniscus lens with its concave surface facing the image side, a meniscus lens with its concave surface facing the image side, a biconvex lens, a biconvex lens, a meniscus lens with its concave surface facing the object side, a biconvex lens, a biconcave lens, a biconvex single lens, and a meniscus lens with its concave surface facing the image side. This microscope objective has a long working distance, and when a reverse parallel beam is incident on the microscope, the focal point converges outside the microscope, with a front focal length (FFL) less than or equal to -6.345 mm.

The present invention relates to a multifunctional signal light lens for a vehicle, comprising a lens outer surface and a lens inner surface. The lens inner surface is a multifunctional lens group formed by splicing a central lens and a fan-shaped lens group, the fan-shaped lens group comprising first lens groups and second lens groups; the first lens groups and the second lens groups are alternately arranged around the central lens, and each consists of a plurality of teeth having different curvatures. The lens outer surface is a smooth plane, and is easy to process and convenient to clean. The inner surface is formed by the central lens and the lens groups consisting of different teeth according to a certain rule, thus reducing design complexity, and facilitating processing and manufacturing of molds. The angle and position of each tooth are designed to irradiate light emitted by a light source to places specified by a signal light regulation in a refraction or reflection mode, the combination of different lens groups enables a single lens to satisfy the requirements of a front position light, a rear position light and a side position light simultaneously, and the size of the lens is small, thus reducing the size of vehicle lights and improving the freedom in styling.

1. The name of the design product: Micro Single Lens Reflex Camera (K28). 2. The use of the design product: Camera for taking pictures. 3. The design points of the design product: In shape. 4. The picture or photo that best shows the design points: Perspective view 1.

The invention discloses a dispersion objective lens with a numerical aperture of 0.75. The dispersion objective lens comprises a triplet lens, three doublet lenses and three single lenses which are coaxially arranged, and after a continuous spectrum point light source passes through the dispersion objective lens, light with different wavelengths realizes differential convergence on an optical axis; a dispersion curve is fitted through a quadratic function, a small amount of dispersion linearity is sacrificed, better balance of an axial dispersion range and imaging quality is realized, and double targets of large dispersion range and high-quality imaging are achieved. The device has the advantage of long object distance, is convenient for front-end light path adjustment, and can be flexibly applied to various measurement systems.

The utility model relates to a dining table technical field, concretely relates to a kind of embedded dining table with light and shadow effect, including base;Rectangular outer frame is installed on base;Top cover is installed at the top of outer frame, and top cover middle part is hollowed out and embedded single lens;Reflecting mirror is located at the top center of base;Pattern switching mechanism is installed in the inside of outer frame;Pattern switching mechanism includes: four vertical fixed posts are set on base, and the synergistic innovation of double-layer dynamic pattern switching mechanism and the inside light bar of vertical fixed post is realized in the real-time variability of abyss mirror effect in dining table limited space: eight-axis synchronous drive system ensures that four groups of pattern reel are accurately positioned when being retracted and switched, and simultaneously directional light bar continuously covers mechanical gap, so that the light and shadow depth of reflecting mirror reflection is always without fault surface;Combined with the space deformation ability of turnover table top, embedded dining table is endowed with unprecedented immersive variable scene experience.

The utility model relates to a lens plasma cleaning tray, include: tray, be equipped with a plurality of with array form distribution's convex on the upper surface of tray, the area of the region of distribution convex on tray is bigger than the area of single lens, and the gap between two adjacent convexes has and the size of center spacing is smaller than the size of single lens. Advantageous effect is: the tray can place a plurality of lenses in the region of distribution convex, and can guarantee that the lens is not inclined after placing, since the lens is supported by a plurality of convexes, compared with sticking to the tray, the other surfaces (five surfaces) of the lens and the downward surface can contact the plasma gas during plasma cleaning, and the corresponding bonding standard can be cleaned, so that the situation of confusing A and B surfaces will not occur, and the tray can use an automatic suction nozzle to suck the lens, which greatly improves the efficiency compared with manual use of tweezers.

The application relates to the technical field of spectral calibration, in particular to a spectral calibration method and device of a single-lens imaging spectral system. Step 100: according to the focal length of the single lens, the distance between the single lens and the detector is adjusted, the monochromator is controlled to be turned on, and the wavelength is initialized; step 102: the two-dimensional displacement platform is controlled to move according to a preset distance, so as to record each acquisition position of the detector and the corresponding number; step 104: the gray-scale map data collected by the detector is fitted, so that the maximum value position of the spectral line and the corresponding number are obtained; step 106: the initialized wavelength is adjusted according to a preset increment; step 108: steps 100 to 106 are circularly executed, so that the position number of the maximum value of the spectral line under different wavelength conditions is obtained; and step 110: the spectral calibration position is determined based on the position number of the maximum value of the spectral line under different wavelength conditions. In this way, the calibration of the spectral center wavelength can be accurately and efficiently completed.

Lighting device (100) and automotive lighting comprising: a plurality of lighting elements (12), wherein a first group of lighting elements (12A) is arranged along a first direction (x) and a second group of lighting elements (12B) is arranged along the first direction (x) and arranged next to the first group of lighting elements (12A) along a second direction (y) perpendicular to the first direction (x), a single lens (14) in a distance from the first group of lighting elements (12A) and / or the second group of lighting elements (12B) to collimate light from the first group of lighting elements (12A) and the second group of lighting elements (12B), a cylindrically shaped optical element (10) extending along the first direction (x) placed between the plurality of lighting elements (12) and the lens (14), wherein the optical element (10) has a non-uniform shape.

1. Name of the designed product: motorcycle head (FS single lens head). 2. Use of the designed product: for motorcycle head. 3. Design points of the designed product: in the overall shape of the product. 4. Picture or photo best indicating the design points: perspective view 1.

The feeding device comprises a hopper, a material moving mechanism and a material pushing mechanism, the hopper is provided with a material cavity, the top and the bottom of the material cavity are open, and a plurality of lenses are stacked in the material cavity from bottom to top; the material moving mechanism is arranged at the bottom of the material cavity, and the material moving mechanism can horizontally move in a reciprocating mode and is used for bearing the single lens on the bottommost layer in the material cavity so that the single lens on the bottommost layer can be moved out of the material cavity; the material pushing mechanism is arranged outside the material cavity and used for pushing the lenses on the material moving mechanism to the first conveying belt. The feeding device has the beneficial effects that the feeding device can put the optical lenses to be detected on the first conveying belt in sequence, so that the labor cost is reduced.