221results about How to "Clear imaging" patented technology

The invention relates to the technical field of optical detection, in particular to a workpiece surface defect detection method and system based on the optical technology, and the method comprises the following steps: S1, generating a curvature model of a workpiece; s2, dynamically adjusting the irradiation angle and the light spot shape of a light source according to the curvature model in the S1; s3, adjusting the focal length of the detection equipment in real time; s4, imaging acquisition is carried out on the workpiece at the same time through multiple angles; s5, correcting image distortion caused by surface curvature change, and fusing the multi-angle images into a high-precision workpiece surface image; s6, defect features of the surface of the workpiece are extracted, defects are classified, positions are marked, and a defect detection report is generated; according to the invention, by dynamically adjusting the light source and the focal length and combining multi-view imaging and advanced image processing technologies, efficient and accurate defect detection is realized, and the product quality and the production efficiency are remarkably improved.

The invention relates to the technical field of optical design, in particular to a high-performance airborne head-mounted low-light night vision optical system which sequentially comprises a first positive lens, a first gluing assembly, a fourth positive lens, a fifth positive lens, a second gluing assembly and an eighth negative lens from an object side to an imaging surface along an optical axis. The image side surface is a concave surface; the first gluing assembly has a concave object-side surface and a concave image-side surface. The fourth positive lens has positive focal power, the object side surface of the fourth positive lens is a convex surface, and the image side surface is a convex surface; the fifth positive lens has positive focal power, the object side surface of the fifth positive lens is a convex surface, and the image side surface is a convex surface; the second gluing assembly has a concave object-side surface and a convex image-side surface; the eighth negative lens has negative focal power, the object side surface of the eighth negative lens is a concave surface, and the image side surface is a convex surface. The optical system has the advantages of large relative aperture, low cost, good image quality, small size, light weight and good thermal stability, and can work normally at low temperature and high temperature.

The invention provides a 40-time infinite conjugate microscope objective, and relates to the field of objective lenses. The 40-time infinite conjugate microscope objective comprises a first lens group, a second lens group and a third lens group which are sequentially arranged along an optical axis from an object space to an image space. The first lens group comprises a first lens and a second lens which are sequentially arranged from the object side to the image side in the optical axis direction. The second lens group comprises a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens which are sequentially arranged from the object space to the image space in the optical axis direction. The third lens group comprises a tenth lens and an eleventh lens which are sequentially arranged from the object space to the image space in the optical axis direction. The 40-time infinite conjugate microscope objective can realize a high-resolution flat image plane and apochromatic objective, under a short parfocal distance, the numerical aperture is larger, the illumination at the image plane is increased, the imaging is clearer, the on-axis field of view and the off-axis field of view are close to diffraction limits, and the point array radius is close to be within the Airy spot.

The invention discloses an artistic mirror based on an acrylic material and a preparation method of the artistic mirror. The artistic mirror comprises a middle PMMA layer, an aluminum coating, an upper protective layer and a lower protective layer, wherein the PMMA layer comprises an anti-aging agent and polymethyl methacrylate; the protective layer comprises a super-hydrophilic self-cleaning protective film layer structure and a protective coating of an aluminum coating. As the art mirror is made of an acrylic material, the image is clear and is not easy to break, and the use safety is greatly enhanced; a layer of high-transparency and super-hydrophilic self-cleaning protective film layer structure is attached to the surface of the artistic mirror, so that the artistic mirror is not easy to fog and stain, the composite coating has antibacterial, anti-ultraviolet and flame-retardant properties and the like due to the addition of components, the related flame-retardant property and service life requirements can be met, and the mirror is light in weight and convenient to carry and install.

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.

The invention discloses an optical machine module of a projector, the projector and an assembling method of the optical machine module. The optical machine module comprises an internal circulation heat dissipation part and an external heat exchange part. A closed cavity is formed in an inner chamber of the inner circulation heat dissipation part, the closed cavity is arranged to be a curved air channel, the curved air channel is combined end to end to form a circulation channel, a power fan module is installed at one node of the circulation channel, and air in the circulation channel can be accelerated to circulate after the power fan module is powered on. An LCD screen module, heat insulation glass, a front Fresnel lens and a rear Fresnel lens are arranged in the circulation channel; the outer heat exchange part and the inner circulation heat dissipation part are integrated or fixed in an attached mode to form a heat exchange structure. According to the invention, the LCD screen module and the heat insulation glass are packaged in the circulation channel, the circulation channel is dustless, and the optical machine module is clear in imaging and free of impurities. The ray machine module is in modular design, the assembling efficiency of the ray machine module, the lens group and the light source group is high, and the yield is improved.

The invention discloses a wide-angle astronomical eyepiece, which comprises a diaphragm, a first lens group and a second lens group, and is characterized in that the first lens group sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side; the second lens group sequentially comprises a seventh lens, an eighth lens, a ninth lens and a tenth lens from the object side to the image side; the first lens and the second lens, the fourth lens and the fifth lens, and the eighth lens and the ninth lens are respectively glued; the focal power of the first lens group is phi F, the focal length of the first lens is F1, the refractive index of the first lens is N1, the Abbe number of the first lens is V1, the focal length of the sixth lens is F6, and the following relational expressions are met: 0.42 lt; f1 / [phi] Flt; 0.65, 0.65; 1.70 lt, 1.70 lt; n1lt; 1.85, 1.85; 35 lt; v1lt; 65; 0.028 [mu] m; f < 6 > / [phi] F < lt >; and-0.021,-0.021. The wide-angle astronomical eyepiece can better control chromatic aberration, so that the chromatic dispersion phenomenon is reduced.

The embodiment of the invention provides a processing method and device of camera equipment, equipment and a medium, and the method specifically comprises the steps: controlling a real-time frame rate value of the camera equipment within a first frame rate value range under the condition that a moving object in a camera equipment environment is not detected; the upper limit value of the first frame rate value range does not exceed the first frame rate threshold value, so that the light incoming amount of the camera equipment is increased; under the condition that the moving object in the environment of the camera equipment is detected, controlling the real-time frame rate value of the camera equipment within a second frame rate value range so as to reduce smear of the image; when the brightness represented by the real-time ambient brightness index value is darker than the brightness represented by the real-time turn-on threshold value, turning on a light supplementing device; and under the condition that the brightness represented by the real-time environment brightness index value is higher than the brightness represented by the real-time lamp turn-off threshold value, turning off the light supplementing device. According to the embodiment of the invention, the starting time of the light supplementing device can be effectively reduced, and the power consumption of the camera equipment can be reduced.

The invention discloses a tower climbing obstacle identification and positioning method based on machine vision. The method mainly comprises the following steps: S1, acquiring comprehensive environment and obstacle information and monitoring illumination conditions in real time; s2, developing an adaptive illumination compensation algorithm, and dynamically adjusting image processing parameters according to real-time illumination conditions; s3, performing semantic segmentation on the image, identifying different types of obstacles, and taking different countermeasures according to the characteristics of the obstacles; s4, constructing a high-precision real-time positioning system, accurately positioning the identified obstacle, and generating three-dimensional coordinate information of the obstacle; s5, tracking the position change of the obstacle in real time in the tower climbing process, and continuously updating the position information of the obstacle; and S6, designing an intelligent path optimization algorithm, planning a safe tower climbing path, and dynamically adjusting the tower climbing path in the tower climbing process. According to the method, misjudgment caused by insufficient illumination or overexposure is greatly reduced, and the safety of tower climbing operation is improved.

The invention discloses a radiation-damage-resistant microscopic imaging system of a thick X-ray scintillator, which is characterized by comprising the scintillator used for absorbing X-rays penetrating through a sample and converting the X-rays into visible light; the reflective microscope objective is used for amplifying and imaging the luminous pattern of the scintillator to obtain primary imaging information of the sample and focusing the primary imaging information to the light field imaging module through an imaging lens; the light field imaging module is used for extracting light field information from the primary imaging information by using a light field imaging method to obtain secondary imaging of the sample and inputting the secondary imaging into the data processing module; and the data processing module is used for extracting light field information from the secondary image, resolving the extracted light field information through a light field reconstruction algorithm, and reconstructing to obtain a high-resolution image of the sample. According to the invention, the problems of high-efficiency fluorescence conversion coefficient and high spatial resolution of the high-energy X-ray are solved, and the light conversion efficiency of the high-energy X-ray is improved.

The invention discloses an ultra-wide-angle optical lens which comprises an optical lens group, the optical lens group is provided with an optical axis, and the optical lens group is sequentially provided with a first lens, a second lens, a third lens, a fourth lens and a fifth lens from the object space to the image space along the optical axis. A diaphragm is arranged between the third lens and the fourth lens, the first lens, the second lens and the fourth lens have negative focal power, and the third lens and the fifth lens have positive focal power; the optical lens group satisfies the following relational expression: F2 * F3 / F1 is greater than or equal to 1.45; iH / EFL > = 1.9; fOV / (D * TTL) > = 1.2; wherein F1, F2 and F3 are the effective focal lengths of the first lens, the second lens and the third lens respectively, IH is the maximum image plane height of the optical lens group, EFL is the equivalent focal length of the optical lens group, FOV is the maximum field angle of the optical lens group, D is the head aperture size of the optical lens group, and TTL is the total optical length of the optical lens group. According to the invention, a 220-degree ultra-wide-angle field of view is realized, and the miniaturization and imaging quality of the optical lens are ensured at the same time.

The utility model relates to a purging system for a strip steel surface quality detection system, and belongs to the technical field of cold-rolled strip steel production equipment in the metallurgical industry. According to the technical scheme, the tail end of a compressed air main pipe is communicated with a transverse pipe (5), and a nozzle (6) is installed on a supporting rod (7); the air blower (13) and the box-type filter (14) are arranged in the air purification chamber (12), an air outlet (17) of the air purification chamber is connected with the sensor chamber and the light source chamber through a pipeline, and the pressure sensors (15) are respectively arranged on the inner walls of the sensor chamber (11) and the light source chamber (10). The utility model has the beneficial effects of effectively preventing impurities such as oil gas, dust and the like from polluting the window, ensuring clear imaging, radiating the camera and light source equipment, ensuring stable operation of the equipment and prolonging the service life of the equipment.

The invention discloses a preparation method and application of a transition metal ion sensitized rare earth fluoride long-afterglow nano material, and belongs to the technical field of biological nano materials. The NaYF4: Tb, Mn long-afterglow nano scintillator is synthesized through a solvothermal decomposition method, divalent Mn < 2 + > with smaller ion radius and rare earth ions Tb < 3 + > are co-doped in a rare earth fluoride NaYF4 matrix, Tb < 3 + > is used as a luminescence center ion, Mn < 2 + > is used as a sensitizer, doping of heterovalent Mn < 2 + > ions can occupy crystal sites to adjust a local crystal field, and doping of the heterovalent Mn < 2 + > ions is realized. Vacancies or gaps can be generated, so that afterglow emission is enhanced; the obtained nano scintillator is combined with a substrate material PDMS to prepare a flexible transparent film, a clear object image is successfully presented under irradiation of X rays with a low dosage rate of 278 [mu] Gy.s <-1 >, and long-term optical stability can still be maintained after continuous 20 times of cyclic irradiation.

The invention relates to a contrast enhancement type optical fiber image inverter and a preparation method thereof. The preparation method comprises the following steps: drawing contrast enhancement type filter glass into a light absorption wire; matching the skin material glass tube with the core material glass rod, and drawing into a monofilament and a round white filament; the drawn monofilaments are arranged into a primary composite rod with an orthohexagonal cross section, and triangular holes of the primary composite rod are evenly filled and inserted with light absorption filaments and round white filaments; drawing the combined primary composite rod into a primary multifilament; arranging the primary multifilaments into secondary composite rods with orthohexagonal cross sections, drawing the secondary composite rods into secondary multifilaments, cutting the secondary multifilaments in a fixed-length manner, and arranging the secondary multifilaments into rows of screen plate sections; and carrying out hot melt pressing forming and torsion forming to obtain the contrast enhancement type optical fiber image inverter. The contrast-enhanced optical fiber image inverter prepared by the method has the advantages of high resolution, high contrast, clear imaging, uniform transmittance, excellent internal quality and the like.

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.

The utility model discloses a peripheral out-of-focus lens capable of inhibiting astigmatism development, which comprises a substrate and a micro-structure lens array regularly distributed on the substrate, the substrate comprises a front type A and a rear type B, the micro-structure lens array is positioned on the front type A, the micro-structure lens array is formed by regular micro-lens monomers with the same structure, and the micro-lens monomers are positioned on the rear type B; the long axis directions of the regular micro lens monomers are the same; an included angle is formed between the astigmatism direction generated by the micro-structure lens array and the astigmatism direction of the rear type B; the utility model has the beneficial effects that vision and astigmatism can be corrected through the substrate and the regularly distributed micro-structure lens array, and meanwhile, peripheral defocus and astigmatism defocus are generated by utilizing the micro-structure lens array, so that sufficient defocus signal stimulation can be formed at the periphery of the retina of a wearer, and vision management is optimized; by controlling the included angle between the astigmatism direction of the microstructure lens array and the astigmatism direction of the substrate, astigmatism management is further optimized, and the problem that astigmatism degrees of a wearer are deepened can be avoided.

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.

The utility model provides a protective film and an intelligent terminal, the protective film comprises a protective layer, a polymer layer, a refraction group layer and an adhesive layer, the polymer layer comprises a first surface and a second surface which are opposite, the protective layer is arranged on the first surface, the refraction group layer is arranged on the second surface, and the adhesive layer covers the refraction group layer. The refraction group layer comprises at least one refraction material layer which is arranged in a stacked mode. The protective film can prevent the refraction group layer from being scratched, and is high in transmittance and clear in imaging.

The invention discloses a monolithic imaging AR optical system which is characterized in that the optical system is composed of a light-emitting screen (L1), a reflecting mirror (L2) arranged in the inclined front of the light-emitting screen (L1) and human eyes (L3). The reflecting mirror (L2) is a concave reflecting mirror with positive focal power, and the material of the reflecting mirror (L2) can be designed according to requirements. In the monolithic imaging AR optical system, the total distance of glasses-screen-human eyes is short, the structure is compact, and the requirements of short exit pupil distance and small optical path space required by sports glasses are met.

The invention relates to the field of liquid crystal display screen control, in particular to a liquid crystal display screen display control method and system.The liquid crystal display screen display control system comprises a screen grid module, a signal transcoding module, a liquid crystal testing module, an electrode control module and an electric field scanning module; the signal transcoding module is used for receiving double-channel display signals and adjusting backlight rays, the liquid crystal testing module is used for calculating the average director of a liquid crystal grid, the electrode control module is used for controlling opening and closing of an electric field in the grid and fitting actual polarized rays, and the electric field scanning module is used for conducting color calibration on a display screen. According to the invention, fine color matching can be carried out on each part of the liquid crystal screen, a wider color range and a higher contrast ratio are realized, a more real image effect is presented, the visual experience of a user is improved, meanwhile, the service life of the display screen is prolonged, and the reliability and durability of the display screen are ensured.

The utility model relates to a fixed micro surgical panoramic camera, and relates to the technical field of medical instruments. Comprising a camera shell, a camera body, a single-shaft rotating body and a fixed tooth clamp, the camera body is installed in the camera shell, LED lamps are arranged on the two sides of the camera body, the bottom of the camera shell is rotationally connected with the single-shaft rotating body, and the fixed tooth clamp is installed on the single-shaft rotating body. The single-shaft rotating body is rotationally connected with the camera shell, pitching motion of the camera body can be manually achieved, the viewing angle of the camera body can be adjusted, and therefore the focus position in the surgical operation can be accurately positioned, and the view blind area is reduced.

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.

A two-piece type imaging AR optical system is characterized in that the two-piece type imaging AR optical system comprises a light-emitting screen (L1), a first lens (L2) is arranged in the oblique front of the light-emitting screen (L1), a reflector (L3) is arranged in the oblique front of the first lens (L2), the first lens (L2) is a plastic lens with negative focal power, and the reflector (L3) is a concave reflector with positive focal power and is made of a plastic material. The reflecting surface of the reflecting mirror (L3) is a free-form surface of an XY polynomial and meets the expression that R3 is more than or equal to-24mm and less than or equal to-28mm; -15 < = f / D4 < =-9; fOV is larger than 85 degrees and smaller than 90 degrees; the two-piece type imaging AR optical system has the advantages of being capable of achieving clear imaging, small in light path, short in exit pupil distance and the like under the condition of being compatible with 500-degree myopia of human eyes.

The invention discloses a portable test question segmentation collator, and relates to the technical field of test question segmentation printing. A portable test question segmentation collator includes a content extraction output device having a content extraction component and a content output component, and an extraction assist member attached to the content extraction output device. The extraction assisting member is provided with a content dividing section. The content dividing portion is adapted to define a print medium into at least two parts and define a content extraction area on the print medium. And the extraction auxiliary component is suitable for positioning the content extraction output device at a relative preset position of the content extraction area. When the area of the test question to be extracted on the printing medium is larger than the area of the content extraction area, segmentation, extraction and output are carried out through the following method: the content segmentation part is used for defining the printing medium into at least two parts; the content extraction assembly is used for extracting the printing content on the printing medium of each part. And the content output component is used for outputting the extracted printing content of each part to a specified medium.

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.

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.

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.

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.

The invention relates to a temperature measurement image online monitoring method, system and device, and relates to the field of intelligent monitoring, and the method comprises the steps: determining an adjustment brightness value according to an indoor brightness value and a reference brightness interval when a use scene is consistent with an indoor scene and the indoor brightness value exceeds the maximum value of the reference brightness interval; when the adjusted brightness value is greater than the maximum brightness value of the equipment, turning off the lighting equipment, and determining a covering brightness value; determining a window light transmission value according to the covering brightness value; controlling light-transmitting equipment to adjust light transmittance according to the window light-transmitting value; when the adjusted brightness value does not exceed the minimum value of the reference brightness interval, determining a light transmission cancelling area according to the main irradiation position, and cancelling the adjustment of the light transmittance; and determining a refraction angle according to the light transmission cancelling area and the temperature measurement area, controlling the light adjusting equipment to move to the light transmission cancelling area, and refracting the light to the temperature measurement area at the refraction angle so as to illuminate the temperature measurement area. The method and the device have the effect of improving the temperature measurement accuracy.

The invention provides an optical lens, equipment and system for a ground lighting lamp, and relates to the technical field of automobile spare parts, and the optical lens for the ground lighting lamp comprises a condensing lens assembly and an imaging lens assembly which are sequentially arranged from the optical axis of a light source to the projection side; the condensing lens assembly gathers the light received by the condensing lens assembly on the image forming component, and an oval focusing light spot is formed on the image forming component. Light rays are mainly concentrated and irradiated on the image forming component with the large length-width ratio through the condensing lens assembly, the utilization rate of the light rays is improved, meanwhile, the projection irradiation brightness of the image forming component with the large length-width ratio is improved, the image forming component with the large length-width ratio is made to carry out high-brightness clear projection, the projection effect is good, and the projection effect is good. And the influence on the projection quality of the large-length-width-ratio image due to symmetrical light spots appearing on the projection of the large-length-width-ratio image forming component by a conventional projection lens is avoided.