182 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.

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 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 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 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.

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.

The utility model relates to the field of optical imaging and mechanical design, and discloses a single-lens light-incoming multi-Cmos imaging device, which comprises an optical focusing lens, an image intensifier is arranged at the bottom of the optical focusing lens, an installation assembly is arranged at the bottom of the image intensifier, the installation assembly is provided with a focusing lens and a CMOS base, and the focusing lens and the CMOS base are arranged on the optical focusing lens. The focusing lens is arranged at the bottom of the image intensifier, and the CMOS base is arranged at the bottom of the image intensifier. According to the utility model, through the sizes of imaging visual angles of a plurality of CMOS, the light inlet amount of the aperture, and the adoption of the CMOS of the same specification when a plurality of cameras are used for image acquisition, when image fusion is carried out, the image size and the data flow size can be unified, the fused image does not deviate, the difficulty of later software algorithm repair is reduced, the image quality is improved, and the image noise is reduced; meanwhile, the light incoming amount, the imaging focal length and the image size of the CMOS needing image fusion are unified, and image fusion can be more accurate.

A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power, and a rear group. A distance between adjacent lens units changes during zooming from a wide-angle end to a telephoto end. The first lens unit is fixed relative to an image plane during zooming from the wide-angle end to the telephoto end. The first lens unit includes single lens having negative refractive power closest to an object, and a plurality of lenses having positive refractive powers disposed on the image side of the single lens. An air lens is formed by an air gap between the single lens and a lens adjacent to and disposed on the image side of the single lens. A predetermined inequality is satisfied.

An optical waveguide device includes an optical waveguide substrate on which an optical waveguide is provided, and a plurality of lenses that optically couple the optical waveguide and optical fibers, in which the optical waveguide includes at least one input waveguide to which input light is input and at least two output waveguides that output outputted light which forms output light, an end portion of the input waveguide and end portions of the output waveguide are formed on one same end surface of the optical waveguide substrate, at least three lenses respectively corresponding to the at least one input waveguide and the at least two output waveguides are disposed on the end surface, and the at least three lenses are configured with a lens array in which at least two lenses are integrally formed and a single lens.

This application provides a beam combining light source device for an optomechanical system, comprising: an emission module including multiple monochromatic light sources, each with a different emission wavelength, and at least one of the monochromatic light sources being a large divergence angle light source; a collimation module including collimating lens groups corresponding one-to-one with each monochromatic light source, each collimating lens group including a condenser lens and a collimating lens arranged sequentially along the optical path; and a beam combining imaging module including at least two dichroic filters and a coupling lens, each dichroic filter being obliquely disposed at the intersection of the transmission optical paths of each parallel beam, used to combine parallel beams from different directions into a combined beam propagating along the same optical axis, and image it onto the receiving surface of the optomechanical system in a critical illumination manner. This application overcomes the physical performance bottleneck of the single-lens scheme, where light collection capability and collimation accuracy cannot be simultaneously achieved, realizing large-angle light collection and high collimation output under large divergence angle light source conditions.