335 results about "Lens hood" patented technology

The invention discloses a field-of-view self-stabilization and self-adjustment hyperspectral camera system and a control method, and relates to the technical field of hyperspectral imaging. The system comprises a first imaging lens group, a movable slit, a two-dimensional linear driver, a slit outer layer light shield, a collimating lens group, a light splitting element, a second imaging lens group, an area array image sensor, an attitude sensor and a control acquisition circuit. Angle disturbance is obtained in real time, two-dimensional compensation displacement of the slit is calculated to drive the slit to move reversely, field-of-view collection is kept basically constant, collection is triggered according to a set rhythm, slit position and attitude data are recorded synchronously, and the pre-calibrated slit position and mapping of original coordinates and ideal coordinates are combined, so that field-of-view collection is completed. Geometric transformation and resampling dynamic correction are carried out on view field inclination aberration and spectrum bending aberration generated along with slit position changes, the environmental adaptability and reliability are improved, a hyperspectral data cube with accurate space coordinates and a stable spectrum curve is output, and the method is suitable for unmanned aerial vehicle-mounted hyperspectral remote sensing.

The present disclosure provides a matte box kit, including a matte box body, a mounting assembly, a first magnetic attachment, and a second magnetic attachment. The matte box body includes a first connection structure and a first light path extending along a first direction. The mounting assembly is configured to secure a lens and includes a second connection structure and a second light path extending along the first direction. The first magnetic attachment is arranged on the matte box body, and the second magnetic attachment is arranged on the mounting assembly. The first and second magnetic attachments are mutually attracted to pre-align and pre-connect the matte box body and the mounting assembly. The first connection structure and the second connection structure form a detachable fixation, aligning the first light path, the second light path, and the lens along the first direction such that they are opposed and in communication.

The application discloses a bar lamp, which comprises a bar lamp holder, a center line of a vertical irradiation surface is arranged in a plane vertical to the length direction of the bar lamp holder, two light source mounting seats are arranged on the bar lamp holder and are oppositely arranged and located on two sides of the center line, two rows of light sources are arranged on the two light source mounting seats respectively, the light emission directions of the two rows of light sources are all towards the irradiation surface, and the two light axes intersect at the center line or in the vicinity of the center line, two lenses are arranged on one light source mounting seat and are located in the light emission direction of the corresponding light source, and each lens comprises a light inlet surface and a light outlet surface, the light source mounting seat on the opposite side of the light source is shielded to reduce glare, the setting of the light shield cover is reduced on one hand to improve the light emission efficiency, and better anti-glare effect is achieved on the other hand.

A lens hood system designed to accommodate one or more lens filters via one or more recesses. The lens filters may be inserted through various access points, including front, back, or side openings, and can be secured using methods such as threading, snap-fit tabs, or sliding mechanisms. The lens hood may be equipped with movable frame portions allowing for roll, pitch, and yaw rotations of the filters, independently or collectively, to optimize filter alignment. Additionally, the inner surfaces of the lens hood may be non-reflective or feature designs to minimize unwanted light reflections, enhancing image quality.

The invention relates to a lighting arrangement (B) for a vehicle (2) comprising a lighting unit (9) arranged in a housing (8) and a shutter (5) arranged in the housing (8) which can be positioned in an open or closed position and which, in the closed position, conceals a camera (6) integrated into the housing (8) of the lighting unit (9). According to the invention, the shutter (5) forms a section of a cover lens (7) of a rear light (1) of the vehicle (2) and, in its closed position, the shutter (5) additionally covers at least one light source (10) emitting a reversing light of the vehicle (2). The invention further relates to a rear light (1) with such a lighting arrangement (B).

The utility model discloses a pop-up light shield based on a memory metal spring, which relates to the technical field of light shields of optical systems, and comprises a fixed shield and a pop-up shield, the end part of one side of the fixed shield is provided with a plurality of mounting plates, and the plurality of mounting plates are uniformly arranged along the outer circumference of the fixed shield; a plurality of first limiting flanges are arranged at the end part of the other side of the fixed cover; a plurality of limiting guide rails are arranged on the inner wall of the pop-up cover, and each limiting guide rail is in sliding connection with the corresponding first limiting flange; the side face, close to the pop-up cover, of the mounting plate is connected with the end, away from the fixed cover, of the pop-up cover through a memory metal spring, the memory metal spring is arranged in a heating pipe in a sleeved mode, one end of the heating pipe is connected with the mounting plate, and the other end of the heating pipe is bonded to the pop-up cover. The self-unfolding mechanism adopts a self-unfolding mode of the memory metal spring, is simple in structure and convenient to deploy, and has better movement stability and higher unfolding precision.

The invention relates to the technical field of rubber detection, in particular to a rubber part quality detection device and a detection method thereof. The device comprises a detection index plate, a support and two lifting devices are sequentially arranged on the periphery of the detection index plate, a laser diameter measuring sensor is arranged on the support, and the laser diameter measuring sensor is arranged above a vibration disc feeder in a suspended mode and used for measuring the diameter of a passing rubber part. A top view camera and a side view camera are connected to the lifting device, an annular lamp is fixedly arranged on the periphery of a lens of the top view camera, a supporting rod is fixedly connected to the lifting device corresponding to the side view camera, and a parallel backlight lamp is arranged at the end of the supporting rod; light shields are arranged on the peripheries of the annular lamp and the parallel backlight lamp, baffles are movably arranged in the light shields, and driving assemblies are connected between the baffles and the light shields; the driving assembly adjusts the rotation angle of the laser diameter measuring sensor according to detection data of the laser diameter measuring sensor, drives the baffle to move in the light shield, and adjusts the local shielding range of the baffle to the light emitting area of the corresponding light source.

To prevent fusion and discoloration in a control end part.SOLUTION: A vehicular headlight includes a light source for emitting light, a reflector for reflecting the light emitted from the light source, a shade for blocking part of the light reflected by the reflector, and a projection lens for projecting the light reflected by the reflector. The shade is provided with a control end part positioned on the light source side, and the control end part includes a reflection control surface subjected to reflection processing in which a focal point of the light is positioned on the surface or in the vicinity, and an inclined plane subjected to reflection processing, which continues to the edge on the light source side in the reflection control surface. The inclined plane is inclined relative to the reflection control surface so that the inclined plane is displaced downward as it is separated from the reflection control surface.SELECTED DRAWING: Figure 2

An eyeshade structure for bilirubin detection includes a body, a first detection module, and a second detection module. The body includes a bottom plate and a side wall. The side wall is connected to the bottom plate and forms an accommodating space with the bottom plate. The first detection module is arranged on the bottom plate. The second detection module is arranged on the bottom plate and is adjacent to the first detection module. The first detection module and the second detection module each include a circuit board, a light-emitting element, an inner photographing element, and an outer photographing element. The circuit board is connected to the bottom plate. The light-emitting element is electrically connected to the circuit board. The inner photographing element is electrically connected to the circuit board. The outer photographing element is electrically connected to the circuit board.

The utility model discloses a telescopic shading device, which comprises a driving mechanism and a shading cover, wherein the shading cover is mounted on the periphery of a light source device to be shaded and is driven by the driving mechanism to extend to form a light shading area. The device can be matched with special equipment for disassembling and assembling the container lock knob to disassemble and assemble the lock knob, and is relatively simple in structure, convenient to manufacture and capable of reducing manual labor, improving working efficiency and reducing the occurrence rate of safety accidents.

The invention discloses an automobile front anti-collision beam radian detection system, and relates to the technical field of anti-collision beam detection. The arc detection device comprises a detection table, a clamping assembly, a positioning assembly and a plurality of arc detection assemblies. The front anti-collision beam is reliably fixed to the clamping table through the clamping air cylinder and the rubber head, and automatic in-place and center correction are achieved through the conductive contact and the positioning conductive inclined block. When the position deviates, judgment is carried out through the resistance value difference, and early warning is given out. The arc measuring assembly is composed of image sensors, an imaging plate, a light shield and an adjusting fluted disc mechanism, the distance between the two sensors can be automatically adjusted according to detection requirements, multi-point projection imaging is conducted on a front anti-collision beam calibration point, and an overall radian curve is calculated. Meanwhile, the system is provided with a centrifugal impeller active heat dissipation mechanism, thermal noise of the image sensor is reduced, and detection stability is guaranteed.

This application provides a soft flash structure and a mobile phone. The soft flash structure includes a soft light, a soft lens, and a light shield. The curved reflective lens section has an incident curved surface and a reflecting curved surface on opposite sides, both curved away from the planar lens section. The planar lens section has a reflecting plane on opposite sides, and the condensing lens section has a condensing reflecting surface and a light emitting surface on opposite sides. The incident curved surface, one reflecting plane, and the condensing reflecting surface are connected sequentially, as are the reflecting curved surface, the other reflecting plane, and the light emitting surface. The soft light, the curved reflective lens section, the planar lens section, and the condensing lens section are housed together within the light shield. The light emitted by the soft light is at least partially incident on the incident curved surface and reflected sequentially by the reflecting surface, the two reflecting planes, and the condensing reflecting surface, before exiting through the light emitting surface. The aforementioned soft flash structure can form a gradually softened light spot with better light uniformity.

The invention discloses an in-situ ultraviolet and visible spectrophotometer with high measurement precision, and relates to the technical field of ultraviolet and visible spectrophotometers, the in-situ ultraviolet and visible spectrophotometer comprises a bottom shell, an optical unit is arranged on the inner wall of the bottom of the bottom shell, and a light source module and a monochromator are arranged in the optical unit; the top of the optical unit is fixedly connected with an operation platform through a supporting rod, the top of the operation platform is provided with a motor mounting frame, the top of the motor mounting frame is provided with a linear motor, the output end of the linear motor is connected with a lifting fixing plate, and the lifting fixing plate is of a Z-shaped structure. The end, away from the linear motor, of the lifting fixing plate is connected with a light shield, and the top of the light shield is provided with an optical fiber clamping frame. According to the method, result deviation caused by dilution multiple estimation errors in a traditional method is avoided, the dilution frequency of the high-concentration sample is reduced, reagent consumption and waste liquid generation are reduced, and the method conforms to the green analytical chemistry concept.

The invention discloses an optical absorption coating with a multi-stage nested structure and a preparation method of the optical absorption coating, and particularly relates to an optical absorption coating with a multi-stage nested cross-scale structure, a preparation method of the optical absorption coating and a method for enhancing substrate interface adhesion of the optical absorption coating. The super cross-linked structure of the light absorbing material precursor is utilized to form a nano-micron multi-stage nested pore structure, so that the reflectivity is reduced, and the light absorptivity of the coating in a broadband range is improved; meanwhile, by regulating and controlling different component proportions, curing time and temperature and coating modes of film forming materials and carbon-based light absorbing materials in the coating, an excellent light trapping structure is formed on the surface of the coating, and the surface adhesion of a substrate is improved. The optical absorption coating provided by the invention is wide in substrate selectivity and excellent in interface adhesion performance, has the absorptivity of 99.0% at the wavelength of 400-2000nm, and is suitable for optical components, baffles, light shields, inner walls of lens cones, darkrooms and other systems and parts needing to eliminate stray light.

The utility model discloses an image acquisition unit based on an AI image flow measurement algorithm detection system, which comprises a camera, the front end of the camera is connected with a composite filter wheel through a flange plate, the front end of the composite filter wheel is sequentially connected with a polarization lens and a telescopic light shield, the outer wall of the telescopic light shield is provided with a light supplement array, and the light supplement array is connected with the composite filter wheel through a flange plate. An illuminance sensor is embedded in the inner wall of the telescopic light shield, and a control box is further installed on a shell of the composite filter wheel. Through the collaborative design of the telescopic light shield, the polarization lens, the composite filter wheel and the light supplement array, the problems of strong light overexposure, specular reflection, low illumination noise and the like are effectively solved, adaptive adjustment can be carried out by combining the illumination sensor to sense ambient light, the image quality under the complex illumination condition is remarkably improved, and the image quality is improved. And a reliable data source is provided for an AI flow measurement algorithm.

The utility model discloses a visual PIN needle detection equipment, including test board, the fixture seat of setting on test board and the CCD subassembly of setting on the fixture seat top, the CCD subassembly includes the coaxial light source, telecentric lens and CCD camera who sets gradually in vertical direction away from fixture seat, and CCD camera, telecentric lens and coaxial light source are on the same axis, and the light shield of setting the back and two side masks of test board is provided with on test board, and the connecting interface is provided with on test board, and the fixture seat includes the base and the positioning fixture of detachable setting on the base, and the positioning fixture is used for positioning installation detected component, and the support plate for supporting base is provided with on test board, and the sensor is provided with on the both sides of positioning fixture of support plate. The utility model discloses reasonable in structure design, and through the visual configuration of CCD camera + telecentric lens + coaxial light source, can realize to PIN needle and carry out detection, and thoroughly solved the problem that PIN needle is easy to wear in other detection mode among existing.

Two light-emitting units are to be prevented from overlapping each other in an image obtained through a camera. A tracked unit (30) has a first outer surface (A1) provided with a first light-emitting unit (H1), a second outer surface (A2) provided with a second light-emitting unit (H2), and a light shield portion (B). The second outer surface (A2) faces a second direction different from that of the first outer surface (A1). The light shield portion (B) is located further outside than the first light-emitting unit (H1) and the second light-emitting unit (H2).

The utility model provides a laser projector, which comprises a projector main body, and the projector main body comprises a projector housing; the optical module is installed in the projector shell, the optical module comprises a laser module, an optical lens and a prism assembly, the laser module, the optical lens and the prism assembly are linearly arranged on a light source channel of the laser projector, and an optical prism is installed on the prism assembly; the light shield is installed on the projector shell, a glass plate is installed on the light shield, projection patterns are arranged on the glass plate, and laser beams emitted by the laser module sequentially pass through the optical lens, the optical prism and the glass plate and then project the projection patterns on the glass plate out. Patterns are projected through the laser projector, so that the marks can be projected to the preset surface, the marks can be kept clear for a long time, compared with paint marks, the marks do not need to be maintained and re-sprayed regularly through laser projection, and the marks can be projected to soil or uneven ground.

This invention provides a single-degree-of-freedom deployable light shield to address the technical problem that existing rigid deployable light shields, with their columnar or planar configurations, are difficult to adapt to the obliquely tapered configuration required for large observation fields. The single-degree-of-freedom deployable light shield provided by this invention innovatively couples two sets of equivalent cranks and equivalent connecting rods connected by elastic drive hinges to a planar multi-stage scissor mechanism. This transforms the linear motion of the planar multi-stage scissor mechanism in the plane into the linear motion of the slider required by the equivalent crank-slider mechanism. Simultaneously, the symmetrically arranged equivalent crank-slider mechanisms on both sides provide in-plane coupling constraints for the planar multi-stage scissor mechanism, limiting its multiple degrees of freedom and forming a single-degree-of-freedom deployable mechanism. This single-degree-of-freedom deployable mechanism, in conjunction with the elastic drive hinges and locking device, achieves the deployment of the obliquely tapered light shield using fewer driving force interfaces while ensuring stability during the deployment process.

1. The name of the design product: the shell part of the ceiling lamp main body. 2. The use of the design product: the product as a whole is the main body of the ceiling lamp suspended from the ceiling and radiating light around; the part to be protected is the shell part of the main body of the ceiling lamp. 3. The design points of the design product: the shape of the part to be protected. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other circumstances that need to be explained: the design is a partial design, and the part shown in solid lines is the part to be protected as a partial design. The part shaded in reference to Figure 1 is transparent. Reference Figure 2 shows the use state and is in the lit state. Reference Figure 3 shows the lit state with a lens installed. Reference Figure 4 shows the lit state with a light shield installed.

The conductive light shield for a probe station of the present invention for cable connection pin clips includes a conductive shield body and a light-absorbing layer. The conductive shield body covers the outside of the pin clip on the probe station. The conductive shield body includes a top wall and side walls extending downwards from the edge of the top wall, with one end of the side wall away from the top wall contacting the probe station. The conductive shield body provides electrostatic shielding and optical protection, ensuring that the pin clip is protected from electrostatic discharge and stray light interference during testing, thereby improving testing accuracy and stability. Cable openings are provided on the side walls to accommodate the cable layout between the pin clip and the testing machine, ensuring that the cable can pass smoothly and maintain a normal connection with the testing system. The light-absorbing layer is disposed on the surface of the conductive shield body. The organic carbon black coating has good light absorption properties and can effectively absorb stray light from the environment, reducing interference from light reflection on the optical alignment system.

The invention provides a rectangular field-of-view design method for an ultraviolet non-line-of-sight communication receiving end and application thereof, and belongs to the technical field of wireless optical communication, the method comprises the following steps: pre-determining the center distance length of a light shield and the upper field-of-view angle, the lower field-of-view angle, the left field-of-view angle and the right field-of-view angle of a rectangular receiving field-of-view; based on the center distance length, the upper view field angle, the lower view field angle, the left view field angle, the right view field angle and the width and length of the rectangular light sensing surface, calculating structural parameters of a light shield used for generating the rectangular receiving view field; wherein the structural parameters comprise the upper and lower edge lengths, the left and right edge lengths and the position of a vertical center point of a larger rectangular opening of the light shield. Through the design of the rectangular view field and the accurate matching of the rectangular light-sensitive surface, the photon receiving efficiency is remarkably improved, stray light and electromagnetic interference are effectively inhibited, and thus the signal-to-noise ratio of weak light signal detection and the system sensitivity are improved.

Systems and methods are disclosed to enable performance of a lens distance test in head-mounted displays (HMDs) to determine the distance between a user's eye and a lens of the HMD (e.g. the display lens in a virtual or augmented reality device). In embodiments, the HMD is configured to determine a current pose of the eye based on a series of captured eye images. The pose information is used to determine the distance from the apex of the cornea to a closest point on the lens. If the determined distance is too small or too large, an alert or notification is generated instructing to adjust the HMD or change the light seal to achieve better distancing, in order to reduce the risk of eye injury and / or improve user experience. In embodiments, the lens distance test may be repeated during a user session to reevaluate and / or monitor the lens distance.

The invention discloses a film deformation effect-oriented impact experiment device, which comprises a film clamping ring, a plurality of cameras, a plurality of spotlights and a clamping and releasing assembly, and is characterized in that the clamping and releasing assembly is used for clamping and releasing an impact body and a light shield, the plurality of cameras are synchronously triggered, and the spotlights are combined to assist in forming a synchronously triggered optical measurement system; the impact deformation effect of the film is captured in real time, and high-precision, full-field and non-contact deformation measurement can be realized under uniform illumination. According to the mechanical characterization method disclosed by the invention, the quantitative problem of instantaneous micro-deformation of the flexible OLED display module under the impact load can be effectively characterized through the technical means of carrying out the impact test through sample clamping, speckle preparation, camera setting, impact parameter setting and camera calibration; the technical blank of real-time representation equipment and method for the micro-deformation effect of the thin film under rigid back shielding in the prior art is filled, and a high-precision and non-contact evaluation means is provided for the impact resistance design of a flexible electronic device.

The utility model discloses a shooting frame, and particularly relates to a shooting frame which comprises a bottom plate, a rotating assembly located in the middle of the surface of the bottom plate, a clamping assembly located in the middle of the rotating assembly, adjusting assemblies located on the two sides of the bottom plate, a containing groove located in the surface of the bottom plate and a light shield located in the containing groove. The rotating assembly comprises two symmetrical supporting plates, the two supporting plates are located on the surface of the bottom plate, a fixing ring is arranged above the two supporting plates, a rotating seat is arranged in the fixing ring, a handle is arranged on the side face of the rotating seat, and a worker manually rotates the handle to drive a rock core to rotate in the fixing ring; meanwhile, the camera is started to shoot the rock core at a fixed point, so that the information of the rock core can be obtained by shooting the four surfaces of the rock core and the characteristics of the rock core can be comprehensively known, and three-dimensional analysis can be carried out by combining pictures of different surfaces, so that researchers are helped to observe the structure of the rock core from different angles and more accurately observe the characteristics of the rock core.

To improve appearance of a lighting fixture by suppressing leakage light from a gap between a fixture body and a light control member.SOLUTION: A lighting fixture as an example of an embodiment includes an outer shell cover 10 constituting a fixture body, and a shading hood 70 as a light control member attached to the outer shell cover 10. The light shielding hood 70 is detachably mounted on a lens 50 constituting a fixture body by fixing parts separately provided at a plurality of places. At least one of the outer cover 10 and the light shielding hood 70 has a light leakage suppression structure for suppressing light leakage from a gap 80 between the outer cover 10 and the light shielding hood 70.SELECTED DRAWING: Figure 9

This utility model proposes a camera lens hood, comprising: a lens hood housing with a filter mechanism for producing a filter effect; two magnetic magnets fixedly installed on the rear side of the lens hood housing, allowing the lens hood housing to be connected to a pocket camera via the magnetic magnets; and a light-shielding plate located on the front side of the lens hood housing. This lens hood is compact and convenient. The magnetic magnets facilitate the mounting and fixing of the lens hood housing onto the lens of a pocket camera. Simultaneously, the light-shielding plate prevents ambient light from entering the lens, making it easily compatible with pocket cameras. This allows professional photography accessories to reach the consumer market, enabling ordinary users to achieve near-professional light control capabilities at low cost, lowering the creative threshold, and effectively improving the shooting effect and playability of pocket cameras.

The application provides a space flexible extension sunshade based on a multi-section electric telescopic rod and a spacecraft, the space flexible extension sunshade comprises a sunshade film and a plurality of telescopic rods, the plurality of telescopic rods are fixedly installed on an outer optical camera base in a circumferential direction, an outer optical camera is located in a region formed by the telescopic rods arranged in the circumferential direction, and the sunshade film is installed between adjacent telescopic rods; when in a folding state, the telescopic rods are folded, and the sunshade film is synchronously folded and stored with the telescopic rods; when in an unfolding state, the telescopic rods are extended, and the sunshade film is synchronously unfolded with the telescopic rods. The electric telescopic rod mechanism is adopted as an extension mechanism of the sunshade film, compared with a traditional sunshade, the space flexible extension sunshade has the advantages of controllable extension process, large specific stiffness, large driving force, simple control mode and the like.