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Optical waveguide assembly, near-eye display device and optical device
ActiveCN224216901Uclear imagingtotal reflection propagation reductionOptical light guidesGratingDisplay device
The utility model discloses an optical waveguide assembly, a near-to-eye display device and an optical device, the optical waveguide assembly comprises a composite layer, a grating and a reflecting layer, the composite layer comprises a plurality of dielectric layers, the dielectric layers comprise a first dielectric layer located on the surface layer, and a total reflection area is at least formed in the first dielectric layer; the gratings are arranged on the same side of the first dielectric layer, the coupling-in grating is used for coupling incoming light into the total reflection area to form total reflection propagation, and the coupling-out grating is used for coupling at least one part of the light in the total reflection area out of the composite layer; the reflecting layers are selectively arranged in a plurality of areas on the outer side surface of the first dielectric layer and used for reflecting light rays of the total reflection area so that the light rays can continue to be transmitted along a total reflection path, and the reflecting layers of at least one area are arranged at intervals. According to the optical waveguide assembly disclosed by the utility model, external light can be transmitted to the composite layer on the premise that light can be propagated in a total reflection manner through the reflecting layers arranged at intervals, so that the lighting effect and the contrast display effect are ensured.
Owner:ZHUHAI MOJIE TECH CO LTD
Long-focus large-zoom-ratio television system based on double focusing
InactiveCN119575588Ahigh resolutionreduce volumeProjector focusing arrangementCamera focusing arrangementTelevision systemOphthalmology
The invention relates to a long-focus large-zoom-ratio television system based on double focusing. The system comprises a lens tube 1, a zoom lens tube 2, a front focusing group 3, a zoom group 4, a compensation group 5, a rear focusing group 6, an optical filter switching group 7, a rear fixing group 8, a pin group 11, a high-definition imaging module 17 and the like, wherein light reflected by a target passes through the front focusing group 3, the zoom group 4, the compensation group 5, the rear fixing group 8 and the rear focusing group 6 and is imaged on the high-definition imaging module 17. The front focusing group 3, the zoom group 4, the compensation group 5, the rear focusing group 6 and the like are respectively driven to translate in the lens tube 1 through sliding of the pin groups 11 in different curve grooves so as to realize continuous change of focal length, and the front focusing group 3 is used for compensating image surface movement caused by object distance change in a small field of view. And the rear focusing group 6 is used for compensating image surface movement caused by environment temperature change in a large field of view. The focal length of the television system is 25mm-1500mm, the zoom ratio is as high as 60 times, and the television system can still work stably in an environment of-45 DEG C to + 90 DEG C.
Owner:HUBEI HUAZHONG PHOTOELECTRIC SCI & TECH CO LTD
4k high-definition lens and imaging device
This application discloses an imaging device with an operating temperature range of -40℃ to +60℃, comprising a 4K high-definition lens and a detector for receiving images captured by the 4K high-definition lens. The 4K high-definition lens has a focal length of 50mm, a relative aperture of 1.25, and operates in dual bands: 0.43~0.656μm and 0.7~1μm. The detector has a pixel count of 3840×2160 and a pixel size of 2.9μm. The 4K high-definition lens employs a heat-free design using domestically produced spherical glass, resulting in a simple, compact structure and small size. It utilizes a high-dispersion material lens and a low-dispersion material glass bonded together to achieve dispersion matching. The combination of different lenses and the rational allocation of optical power ensure excellent optical performance. Furthermore, it is suitable for imaging in high-brightness daytime and low-light nighttime environments and can switch bands for imaging, ensuring clear images both day and night.
Owner:CHENGDU JINGPIN NIGHT VISION OPTOELECTRONICS TECHNOLOGY CO LTD
High-illumination projection assembly and welcome light
ActiveCN116165774BLarge imaging rangeclear imagingProjectorsOptical signallingIlluminanceOphthalmology
The application discloses a high-illumination projection assembly and a welcome lamp, which comprise an illumination lens group, an imaging lens group and a shell assembly; the imaging lens group comprises, in sequence from the image side to the object side, a first lens with positive refractive power, a second lens with negative refractive power and a third lens with positive refractive power; the imaging lens group has three lenses with refractive power; the illumination lens group comprises, in sequence from the image side to the object side, a fourth lens with positive refractive power and a fifth lens with positive refractive power; the imaging lens group satisfies the following conditional expression: 54.115mm < f123 / tan (Semi-Fov1) < 134.382mm; the imaging range of the imaging lens group can be wide, the pattern projected by the projection assembly has higher recognition and the imaging is clearer.
Owner:HUIZHOU XINGJUYU INTELLIGENT TECH CO LTD
Autofocus method, focusing system, computer readable storage medium and electronic device for wafer detection
ActiveCN122027894Bclear imagingfor subsequent measurementsImage analysisTelevision systemsComputer graphics (images)Engineering
The application provides an automatic focusing method for wafer detection, a focusing system, a computer readable storage medium and an electronic device, wherein the automatic focusing method comprises the following steps: for a wafer surface focusing area, a plurality of original images with different exposure times are collected by a camera, high dynamic range (HDR) synthesis and non-linear correction are performed on the original images to obtain a preprocessed image; at least one quality evaluation index of the preprocessed image is calculated, if the index does not reach a preset threshold, it is determined that the current image is invalid and is discarded; if the verification is passed, subsequent steps are performed; at least one focusing sharpness feature is extracted from the preprocessed image that passes the verification; based on the extracted focusing sharpness feature, a comprehensive focusing score of the current image is calculated; a search is performed in the Z-axis direction, and the above steps are repeatedly performed iteratively at different Z-axis positions to obtain the comprehensive focusing scores corresponding to the positions; the Z-axis position that makes the comprehensive focusing score reach the maximum is found as the best focusing position.
Owner:MAIQIAOLI (SHANGHAI) SEMICON TECH CO LTD
Two-color composite uncooled athermalization infrared lens and imaging device
The invention provides a double-color composite uncooled athermalization infrared lens, the applicable spectral ranges are 3-5 [mu] m and 8-12 [mu] m, and the lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged in the optical axis transmission direction; the first lens and the fourth lens are meniscus positive lenses with convex surfaces facing the object side; the second lens, the third lens and the fifth lens are meniscus negative lenses with convex surfaces facing the object side; the air gap between the first lens and the second lens is 0.5 mm, the air gap between the second lens and the third lens is 18.2 mm, the air gap between the third lens and the fourth lens is 31.89 mm, and the air gap between the fourth lens and the fifth lens is 0.5 mm. The lens provided by the invention is simple in structure, large in target surface and clear in imaging, is adaptive to a double-color movement, and can be matched with an uncooled detector with the resolution of 1280 * 1024 and 12 [mu] m for use. The invention further discloses an imaging device.
Owner:安徽光智科技有限公司
Substrate glass kiln melting material melting edge state detection mechanism and method
PendingCN119569306AImprove quality stabilityImprove quality consistencyGlass furnace apparatusImaging analysisMechanical engineering
The invention discloses a mechanism and method for detecting the melting edge state of melting ingredients of a substrate glass kiln, and the mechanism comprises a guide assembly which is installed at the outer side of the kiln; the cooling assembly is mounted on the guide assembly, and a purging assembly is mounted on the cooling assembly; the detection device is arranged in the cooling assembly and is used for detecting the melting edge state of the ingredients in the kiln; the control device is electrically connected with the guide assembly, the cooling assembly, the purging assembly and the detection device; wherein when the melting edge state of the ingredients in the kiln is detected, the control device controls the guide assembly to drive the detection device to enter the kiln for detection. By monitoring the melting material melting edge state detection technology, marking the position of the melting material edge through image analysis software, and distinguishing the temperature according to different colors, the moving speed of the melting material edge and the temperature change condition can be visually observed.
Owner:IRICO
Underwater Microscopic Observation Instrument
This disclosure relates to the field of underwater optical imaging technology, specifically providing an underwater microscopic observation instrument, including a light source chamber and an imaging chamber connected by a focusing mount. The imaging chamber contains an imaging unit for imaging underwater targets between the light source chamber and the imaging chamber. The light source chamber includes a first housing, optical components, and a driving mechanism. The optical components include a laser and a dimming assembly. The laser outputs a pulsed laser beam. The dimming assembly includes a reflector, a conical mirror, and a lens arranged sequentially along the optical axis of the pulsed laser beam. The conical reflector of the mirror reflects the pulsed laser beam, forming a first reflected beam. The first reflected beam is reflected by the inner surface of the reflector to form a conical second reflected beam, which passes through the lens and converges on the optical axis to form an illumination layer. The driving mechanism is used to adjust the position and thickness of the illumination layer to improve the clarity of the underwater imaging of the target by the imaging chamber.
Owner:INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Wide-temperature long-wave infrared coaxial four-mirror optical lens for space tiny dark and weak target detection
ActiveCN121956316Aimprove integrityImprove stabilityPicture taking arrangementsMountingsLight beamLong wave infrared
The invention discloses a wide-temperature long-wave infrared coaxial four-mirror optical lens for space tiny dark and weak target detection, and solves the problems that an existing optical lens for space tiny dark and weak targets is large in size, high in weight and poor in temperature adaptability. The first reflecting mirror, the second reflecting mirror, the third reflecting mirror and the fourth reflecting mirror are sequentially and coaxially arranged from a light incident end to a light emergent end; the reflecting surfaces of the first reflecting mirror and the second reflecting mirror are oppositely arranged, and the reflecting surfaces of the third reflecting mirror and the fourth reflecting mirror are oppositely arranged; light through holes are formed in the centers of the second reflector, the third reflector and the fourth reflector; the second reflector is used for receiving incident light and reflecting the incident light to the first reflector, and light beams reflected by the first reflector enter the fourth reflector through light through holes in the centers of the second reflector and the third reflector and are reflected to the third reflector for reflection. And the light beams reflected by the third reflector pass through a light through hole in the center of the fourth reflector and then are converged to a photosensitive receiving surface of an external detector.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI
An infrared spherical pan-tilt camera with voice prompts
This utility model relates to the field of security monitoring equipment technology, and in particular to an infrared PTZ camera with voice prompts. It includes a base, with a main body shell fixedly connected to the upper end of the base. An adjustment device is fixedly connected to the lower inner wall of the main body shell, a mounting block is fixedly connected to the upper end of the adjustment device, and a protective device is fixedly connected to the upper end of the mounting block. The protective device of this infrared PTZ camera with voice prompts uses a rubber protective sleeve to wrap around the camera body, effectively resisting external impacts. The design of the connecting block positioning groove and the camera positioning groove provides stable protection for internal components, preventing sand and rain from entering, avoiding camera scratches and water mist interference, ensuring clear imaging, and simultaneously ensuring the safe and stable storage of data in the memory card slot. The adjustment device uses a rotary motor with a gear transmission structure, making the captured image more stable.
Owner:江苏中楚通讯有限公司
Stomach tube imbedding auxiliary device for nursing
ActiveCN222566331UEnhance the imageeasy to cleanGastroscopesOesophagoscopesStomach partVisual field loss
The utility model discloses a stomach tube imbedding auxiliary device for nursing, and relates to the technical field of stomach nursing, the stomach tube imbedding auxiliary device for nursing comprises a main body mechanism which comprises an operation cavity rod and an intubation tube, and the lower end of the operation cavity rod is provided with an insertion opening; the air pressure mechanism comprises an air pressure pipe arranged on one side of the outer wall of the operation cavity rod, the lower end of the air pressure pipe communicates with the outer wall of the lower end of the operation cavity rod, a piston piece is slidably connected into the air pressure pipe, a handle rod is fixedly connected to the piston piece, and a guide assembly is arranged on one side of the operation cavity rod. According to the stomach tube imbedding auxiliary device for nursing, a worker enables an intubation tube to enter the stomach through the esophagus, in the process, imaging on a display screen is facilitated through a camera at the tail end of the intubation tube, and in the intubation tube entering process, in order to prevent the visual field of the camera from being blocked by residual dirt in the esophagus, the camera is convenient to carry out imaging on the display screen. A worker can introduce water into the operation cavity rod and the intubation tube through the drainage tube, and the water is further sprayed on the surface of the lens of the camera through the flushing tube, so that cleaning is facilitated, and the visual field is improved.
Owner:SUINING CENT HOSPITAL
Road early warning device
Owner:镇江市公路事业发展中心 +2
Method for improving imaging quality of multimode fiber endoscope based on correlated imaging
ActiveCN119599901Aclear imagingcancel noiseImage enhancementImage analysisImaging processingDenoising algorithm
The invention discloses a multi-mode fiber endoscope imaging quality improving method based on correlated imaging, and belongs to the technical field of correlated imaging. The method comprises the following steps of: emitting a modulated light field to irradiate a target area by using a multimode fiber endoscope, and collecting a barrel value of the light field passing through the target area by using a detector; and then inputting the modulation light field and the barrel value into a reconstruction algorithm, reconstructing the image by using an alternating multiplier method in combination with a total variation denoising algorithm and low-rank constraint, and finally obtaining a reconstructed image. According to the method, imaging of the target area is clearer, application has generalization, and the method can be used for imaging processing under various under-sampling conditions.
Owner:湖南中医药高等专科学校 +1
VR optical system and near-eye display device
The application discloses a VR optical system and a near-eye display device, the VR optical system comprises one optical lens close to the human eye side and at least one microlens array close to the display side; the optical lens has positive focal power, has a first surface close to the human eye side and a second surface away from the human eye side, the first surface is a concave surface, and the second surface is a convex surface; a composite film layer is arranged or attached on the first surface, and a partial reflector is arranged on the second surface; the microlens array has oppositely arranged first and second surfaces, the first surface has a plurality of microlens units, the plurality of microlens units have the same or different focal lengths, and the second surface is a plane. By arranging a special film layer on the optical lens and reasonably matching the microlens array, multiple light paths can be folded back, the thickness of the system is greatly reduced, a multiple visual field is established, the visual field in each small range can be optimized, and therefore clearer imaging quality can be obtained.
Owner:NINGBO YAK TECH IND CO LTD
Embedded security alarm device
The utility model relates to the technical field of alarm devices, and discloses an embedded security alarm device, comprising a housing, one side of which is provided with two mounting holes; the two gain antennas are fixedly arranged on the inner circular wall surfaces of the two mounting holes in a sleeving manner respectively; the buzzer is fixedly mounted on one side of the shell; the alarm lamp is fixedly mounted on the bottom surface of the shell; the circuit board is fixedly arranged on the inner wall surface of the shell; the fixing hole is formed in the bottom surface of the shell; the camera is fixedly installed on the bottom face of the circuit board, and the outer circle wall face of the camera and the inner circle wall face of the fixing hole are movably arranged in a sleeved mode; signals of the alarm assembly can be increased through the gain antenna, so that the camera can perform accurate imaging and alarm on the environment under the action of the buzzer, the alarm lamp and the infrared sensor, workers can be reminded through sound and light, and the alarm efficiency of the alarm assembly is improved.
Owner:NANJING GUOOU INTELLIGENT TECH CO LTD
Prime lens
The prime lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens which are sequentially arranged from an object side to an image side along an optical axis, the first lens has positive focal power, the second lens has positive focal power, the third lens has focal power, and the fourth lens has focal power. The fourth lens has focal power, the fifth lens has negative focal power, the sixth lens has positive focal power, the seventh lens has focal power, and the eighth lens has negative focal power. According to the prime lens provided by the embodiment of the utility model, the eight lenses are adopted, the focal power of each lens is reasonably distributed, and the surface types of part of the lenses are further set, so that a telephoto lens which has a longer shot distance under a large target surface, stable high and low temperature performance, a large aperture, small distortion and clear imaging is realized; and the use requirements under more conditions can be met.
Owner:DONGGUAN YUTONG OPTICAL TECH
Reflection type astronomical telescope
ActiveCN224216947UPrecisely adjust the pointingclear imagingTelescopesMountingsOptical axisAstronomical telescopes
The utility model discloses a reflection type astronomical telescope, which relates to the technical field of astronomical telescopes and comprises a lens cone, a main lens bracket and a movable frame arranged at one end of the lens cone and coaxially arranged on the inner side of the main lens bracket, a main lens is arranged on the movable frame, a plurality of elastic rings are arranged on the inner wall of the movable frame, and a plurality of first adjusting screw rods are arranged on the main lens bracket in a threaded penetrating manner. One end of each first adjusting screw rod is connected with the corresponding elastic ring; the pair of glasses has the beneficial effects that the angle of the movable frame is independently adjusted through the four first adjusting screw rods arranged on the main glasses frame, and the pointing direction of the main lens is accurately adjusted; three second adjusting screws of the auxiliary mirror bracket independently adjust the angle of the auxiliary mirror seat and accurately adjust the direction of the auxiliary mirror, and the two are matched to accurately align the optical axes of the main mirror and the auxiliary mirror, so that clear imaging is facilitated; the operation mode is simple and convenient, and the observation effect can be effectively improved.
Owner:PING TANG MAI CHONG XING LV XING YOU XIAN GONG SI
A carotid artery missegmentation processing method and device for robotic autonomous scanning
ActiveCN121265113BAvoid the problem of following the wrong blood vesselsReduce false recognition rate
The application discloses a carotid artery mis-segmentation processing method and device for robot autonomous scanning, and the method comprises the following steps: calculating an average height; controlling the ultrasonic probe to start moving from the starting point of longitudinal scanning, and acquiring a current ultrasonic image in real time; calculating the height mean value and the height standard deviation of the longitudinal profile of the blood vessel; judging whether the longitudinal profile of the blood vessel is a jugular vein; if yes, calculating the moving distance along the X-axis direction of the tool coordinate system at the next moment and the exertion strength at the next moment; otherwise, taking the preset step length and the preset strength as the moving distance and the exertion strength at the next moment respectively, determining the moving direction at the next moment based on the trend of the longitudinal profile of the blood vessel; controlling the ultrasonic probe to move to the position at the next moment, and re-executing the above process until the ultrasonic probe moves to the end point of the longitudinal scanning. The method effectively reduces the adverse effect of carotid artery mis-segmentation on scanning, and ensures that the carotid artery can be continuously and stably tracked.
Owner:武汉库柏特科技股份有限公司
Optical lens adjusting device
ActiveCN224203492Ucompact structureSimple structurePhotomechanical exposure apparatusMountingsOptic lensMechanical engineering
Owner:RAINTREE SCI INSTR SHANGHAI
Optical system and projection device
This invention discloses an optical system and a projection device. The optical system has an object side and an image side arranged opposite each other along the optical axis. From the object side to the image side, the optical system sequentially includes a zoom lens assembly and a focusing lens assembly. The zoom lens assembly includes a first lens assembly with negative optical power, an aperture stop, a second lens assembly with positive optical power, and a third lens assembly with positive optical power, arranged sequentially from the object side to the image side. The aperture stop and the second lens assembly are fixed in position relative to the image side. The first lens assembly and the third lens assembly can move closer to each other or further away from each other along the optical axis to enable the optical system to zoom. The focusing lens assembly has positive optical power and can move to a corresponding position along the optical axis to enable the optical system to focus, thus solving the problem of low zoom efficiency in existing optical lenses.
Owner:UNION OPTECH
Drilling, peeping, limiting, cleaning and scraping integrated device for mine
According to the drilling, peeping, limiting, cleaning and scraping integrated device for the mine, an adjustable limiter is extruded by adjusting the distance between two screwing rings, so that the adjustable limiter deforms in the radial direction and is matched with a drilling hole; the steel wire rope is connected with the guide head so as to pull the adjustable limiter to move in the drill hole; the peeping probe is arranged at the front end of the guiding head, the water pipe extends to the sensor on the side portion of the peeping probe, and the sensor is located on the side portion of the guiding head and moves along with the guiding head to detect the inner wall of the drill hole. The detection device is guaranteed to be always displaced from the center position of a drill hole through the adjustable limiter, a water pipe is connected to the guide head, and small broken stones on the lens and hole wall muddy substances attached to the peeping probe are flushed through water, so that imaging of the peeping instrument is clearer; the sensor can obtain rock mass structural feature information and rock mass mechanical property information by detecting the inner wall of the drill hole.
Owner:YUWU COAL CO LTD OF SHANXI LUAN GRP
Stent and focused ion beam scanning electron microscope dual beam system
The present disclosure relates to a kind of support and focused ion beam scanning electron microscope double-beam system, support is used to be installed on the sample stage in focused ion beam scanning electron microscope double-beam system, support is formed with the installation inclined plane for installing the sample to be measured by grinding process, the included angle β of installation inclined plane with the sample stage in focused ion beam scanning electron microscope double-beam system is acute angle.Through the above technical scheme, the range of ion beam its on the sample surface is wider, and energy distribution is relatively more uniform, avoid the obvious processing speed difference in soft and hard junction area when vertical incidence, reduce the problem of inconsistent processing speed caused by the soft and hard uneven inside sample, to effectively reduce the phenomenon of strip mark along processing direction, reduce the influence of curtain effect, so that, when subsequent observation by electron microscope, the real structure of material can be accurately presented, to obtain more accurate analysis result.
Owner:CHENGDU ZIGUANG SEMICON TECH CO LTD
Surgical lighting system
ActiveCN222565971Ucompact structurereduce volumeDiagnosticsSurgical field illuminationSurgical operationMedicine
Disclosed is an illumination system for a surgical operation, the illumination system comprising: a light emitting device (100) for emitting a light beam transmitted in a first direction; the optical fiber cable (200) is used for transmitting the light beams; the light beam conversion device (300) is connected to the optical fiber cable (200) to receive the light beam and output an illumination light beam with an adjustable illumination direction, and the illumination direction is transverse to the first direction; and the mounting device (400) is configured to arrange the light beam conversion device on a surgical instrument (500) used in the surgical operation, and the surgical instrument can be fixed on the body of a patient or a surgical bed frame.
Owner:AGLOE MEDICAL TECH CO LTD
Head-up display glass and head-up display system thereof
Head-up display glass includes laminated glass (10). The laminated glass (10) has a first surface (10-1) and a second surface (10-2) opposite to the first surface (10-1). The second surface (10-2) includes a display region (31) and a non-display region (32). A first nano-coating (20-1) is disposed in the display region (31). The first nano-coating (20-1) includes at least one first high-refractive-index layer (21-1) and at least one first low-refractive-index layer (22-1) that are alternately stacked from the second surface (10-2) outwards. The at least one first high-refractive-index layer (21-1) each has a refractive index ranging from 1.9 to 2.7. The at least one first low-refractive-index layer (22-1) each has a refractive index ranging from 1.3 to 1.8. The display region (31) has a reflectivity greater than or equal to 10% for P-polarized light incident at an angle ranging from 55° to 75°. For visible light incident at an angle ranging from 0° to 10°, a reflectivity of the non-display region (32) is less than a reflectivity of the display region (31). For the head-up display glass, not only the cost is low, but also an image of head-up display is sharp and a visual interference of the glass is small, thereby ensuring driving safety and driving comfort of during driving. A head-up display system is further provided in the present disclosure.
Owner:FUYAO GLASS IND GROUP CO LTD
A refrigeration type reflective long-focus lens suitable for different object distances and a focusing method
The present application relates to the technical field of optical lens, in particular to a refrigeration type reflective long-focus lens suitable for different object distances and a focusing method, comprising: off-axis beam-reducing primary mirror, off-axis beam-reducing secondary mirror, off-axis three-mirror primary mirror, off-axis three-mirror secondary mirror, off-axis three-mirror tertiary mirror and diaphragm arranged in sequence from object plane to image plane along the direction of light incidence; the off-axis beam-reducing primary mirror and the off-axis beam-reducing secondary mirror are both concave mirrors with positive focal power, and the focal points of the two mirrors coincide, forming an afocal beam-reducing system; the position of the off-axis beam-reducing secondary mirror can be moved to achieve focusing for different object distances; the off-axis three-mirror primary mirror is a concave mirror with positive focal power, the off-axis three-mirror secondary mirror is a convex mirror with negative focal power, and the off-axis three-mirror tertiary mirror is a concave mirror with positive focal power, which together form a refrigeration type off-axis three-mirror lens for eliminating induced aberration caused by off-axis field aberration of the front beam-reducing system.
Owner:BLUE STAR OPTICAL (SHANGHAI) AEROSPACE TECH CO LTD +1
A long-wave infrared zoom lens
The application discloses a long-wave infrared zoom lens, which comprises a front fixed group, a zoom group, a compensation group, a rear fixed group and a protective window in sequence from an object side to an image side along an optical axis; the front fixed group comprises a first lens, the zoom group comprises a second lens, the compensation group comprises a third lens, the rear fixed group comprises a fourth lens and a fifth lens, and the second lens and the third lens can reciprocate along the optical axis; and the focal length range of the long-wave infrared zoom lens is 20mm-100mm. The long-wave infrared zoom lens has the advantages of small weight and light volume, and the zooming and compensation are respectively realized by using single lenses, so that the optical axis stability in the zooming process can be well ensured, the adjusting mode is simple, the requirement on the lens structure is low, production and assembly are simple, lens precision is easy to ensure, tolerance analysis is easy, and mass production is easier to realize.
Owner:CHENGDU JINGPIN NIGHT VISION OPTOELECTRONICS TECHNOLOGY CO LTD
Curved surface imaging lens and camera
Provided are a curved surface imaging lens system and a camera. The lens includes a front set (S1), a diaphragm (T) and a rear set (S2). The front set (S1), the diaphragm (T) and the rear set (S2) are sequentially disposed from an object plane side of the curved surface imaging lens system to an image plane side of the curved surface imaging lens system. The front set (S1) and the rear set (S2) each have a positive focal power. The focal length of the lens is denoted as f. The focal length of the front set (S1) is denoted as fS1. The focal length of the rear set (S2) is denoted as fS2. fS1 and fS2 respectively satisfy the following relationship with f: 0.50 < |fS1 / f| <1.00, and 3.60 < |fS2 / f| < 4.80. With the mutual cooperation of these optical elements such as the front set (S1), the diaphragm (T) and the rear set (S2), a curved surface object can be clearly imaged in the view range, a problem that the middle and the edge cannot be clearly focused at the same time during traditional curved surface imaging can be solved, and a relatively good imaging performance can be achieved.
Owner:OPT MASCH VISION TECH CO LTD
A microscopic observation device for soil particles in shaking table tests
This utility model relates to a microscopic observation device for soil particles in shaking table tests, belonging to the technical field of civil engineering experimental equipment. It includes a vibrating base that supports the entire device and provides controlled vibration power; a fully transparent model box is mounted on the vibrating base to hold the soil particle sample to be observed, and the bottom layer of the fully transparent model box has symmetrically arranged wave-absorbing sponge layers on its left and right sides; a miniature camera assembly is mounted on the vibrating base, vibrating synchronously with the fully transparent model box; the miniature camera assembly includes a camera with high-speed continuous shooting capability, and the frame rate of the miniature camera assembly is not less than 300fps; a horizontal electric guide rail is mounted on the vibrating base; and a vertical electric lifting column is mounted on the horizontal electric guide rail. This utility model effectively eliminates the relative displacement problem caused by the asynchronous movement of the camera equipment and the model box in shaking table tests.
Owner:SHENZHEN UNIV
Visual earpick
ActiveCN222566108UEasy to assemble and disassembleimprove lighting conditionsEar treatmentOtoscopesMedicineElectrical battery
The utility model discloses a visual earpick which comprises an earpick body and a cover body covering the earpick body, and the earpick body is composed of a lower shell, an earpick body, a camera module, a light-emitting assembly, a circuit board, a lower connecting component and a battery. The light-emitting assembly is arranged at an opening of the lower shell in a sleeving mode, the circuit board, the lower connecting component and the battery are arranged in the lower shell, the top end of the light-emitting assembly is connected with the ear pick, and the lower end of the light-emitting assembly is connected to the lower connecting component; the upper end of the camera module is embedded in the earpick, and the lower end of the camera module penetrates through the light-emitting assembly and is connected with the circuit board. The visual earpick is convenient to install, can be connected with an external video display device, and clearly displays the condition in the ear canal on the external video display device through the lighting and camera shooting module, so that a user is guided to safely clean the ear canal or observe the condition in the ear, the ear canal is prevented from being scratched, and the comfort degree is good.
Owner:HUIZHOU SAIEN MAKER TECH CO LTD
Defect inspection equipment
The present invention relates to a defect inspection device. Specifically, the defect inspection device according to one embodiment of the present invention includes: an image acquisition unit, which acquires an image of a target loaded on a table; a control unit, which controls the movement of the table and controls the operation of the image acquisition unit; a correction unit, which corrects a second image acquired by the image acquisition unit when the table moves along a second direction based on a first image acquired by the image acquisition unit when the table moves along a first direction; and a defect judgment unit, which compares the corrected second image with a pre-stored reference image to judge whether the target has a defect.
Owner:SAMSUNG DISPLAY CO LTD