30results about How to "Large imaging range" patented technology

A method of inspecting a lateral pipe extending from a manhole, said method comprising: (a) inserting an imaging head into said manhole using a positioning system, said imaging head connected to an elongated member and comprising an imaging device adapted to convert an image to an image signal, a lens optically coupled to said imaging device, and at least one lamp suitable for projecting a light beam, said lamp having a beam that is adjustable to enable said beam to move relative said imaging device; (b) imaging a target located within said lateral pipe; (c) holding said imaging device essentially steady while imaging said target and adjusting said beam to adjust the illumination of said target.

The invention discloses a control optimization method used for a fire grate incinerator and based on flame radiation images. The control optimization method comprises the following steps that the waste combustion conditions of all subareas are shot in real time, and image noise is eliminated; the multiple flame images are acquired, and the average values of R, G and B of the obtained images are calculated; the average values of the R, the G and the B are input into a trained BP neural network, and temperature field distribution and the average temperature T of all fire grate combustion areas are obtained; and the obtained flame average temperature T of all the combustion areas and a preset temperature range are compared and judged, and accordingly the feeding speed of all the combustion areas, the primary air volume and the secondary air volume are adjusted correspondingly. The invention further discloses a control optimization device used for the fire grate incinerator and based on the flame radiation images. According to the control optimization method used for the fire grate incinerator and based on the flame radiation images, temperature fields of waste flame on all subarea fire grates can be quickly rebuilt in real time; by adjusting the combustion parameters of all the subarea fire grates correspondingly, real-time optimal control over waste burning uniformity and efficiency is achieved.

A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, greater imaging range, and linear sweeps of the source frequency. The OCT components (or most of them) may be implemented within a hand held imaging probe. In operation, a triangulation scan may be used to orient the imaging probe with respect to a fixed coordinate system; preferably, OCT data captured by the device is then transformed to that same orientation with respect to the fixed coordinate system to improve the scanning results.

The invention provides a pitch angle imaging method based on vortex electromagnetic waves, and belongs to the field of radar target imaging. The traditional method is based on electromagnetic wave amplitude scanning, the amplitude scanning range of the traditional method is limited by the working bandwidth of an antenna, and is different from the traditional pitch angle imaging based on vortex electromagnetic waves. The pitch angle imaging method based on vortex electromagnetic waves can work at a single frequency point based on the phase information of an echo signal, so that the pitch angleimaging range is wide, and the requirement on the bandwidth of the antenna is low. The accuracy of amplitude scanning of the traditional method depends on the width of an electromagnetic beam, and thenarrower the electromagnetic beam is, the higher the imaging accuracy is, but the narrower electromagnetic beam is difficult to realize. The imaging precision of the pitch angle imaging method basedon vortex electromagnetic waves depends on the grid thickness during discretization of the pitch angle, and the imaging precision can be effectively improved by adopting thinner grids. The pitch angleimaging method based on vortex electromagnetic waves can realize the measurement of the pitch angle of 5-85 degrees, has wide measurement range, and has the imaging error lower than 1.2 degrees in the range of the pitch angle of 5-85 degrees.

The invention discloses a camera imaging auxiliary apparatus which comprises an eyeglass apparatus. The eyeglass apparatus comprises a shell shaped mirror casing which is provided with a convex mirror inside. The eyeglass apparatus is provided on a fixing device through a movable roller. According to the camera imaging auxiliary apparatus, the convex mirror is applied to the camera, in this way an eyeball is added for the camera to view a surrounding 180 DEG scene.

The invention discloses an optical system, a lens module and electronic equipment. The optical system includes, in order from an object side to an image side along an optical axis direction, first tofifth lenses having refractive power, wherein the first and fourth lenses have positive refractive power, and the fifth lens has negative refractive power; object side surfaces of the first to fourthlenses and an image side surface paraxial region of the fourth lens are convex surfaces, and image side surface paraxial regions of the first to third lenses are concave surfaces; the object side surface and the image side surface of the fifth lens are aspheric surfaces, at least one of the object side surface and the image side surface of the fifth lens is provided with at least one inflection point, and the optical system satisfies the conditional expression: 0.2</=IMGH/OBJH</=0.8. By arranging the five-piece lens structure, the refractive power of the five optical lenses and the surface type of the paraxial region are reasonably configured, and the optical system meets the relational expression, so that the optical system has a wider imaging range and higher magnification, and is easy to miniaturize.

The invention discloses a railway crossing remote centralized control and intelligent early warning integrated system. The system comprises a dispatching center control subsystem, a dispatching center video/audio subsystem, a crossing field front-end device subsystem and an optical fiber communication subsystem. The dispatching center video/audio subsystem is connected with the dispatching center control subsystem. The crossing field front-end device subsystem is connected with the dispatching center control subsystem through the optical fiber communication subsystem. The dispatching center control subsystem comprises a control server and a communication controller, achieves monitoring and control over all devices of the other three subsystems and completes remote control command for dispatching operators. The dispatching center video/audio subsystem comprises a video image display module and a video/audio storage device matrix. Remote videos, remotes audios and remote control are centralized and integrated into the system, the efficiency is improved, the operation is facilitated, and the system is safer and more reliable.

The invention provides an ultrasonic puncture guidance device and ultrasonic puncture guidance equipment, and relates to the field of medical instruments. The ultrasonic puncture guidance device comprises a puncture needle tube and an ultrasonic transducer; puncture needle head is arranged at one end of the puncture needle tube; the ultrasonic transducer is contained in the puncture needle tube, and extends to the position of the puncture needle head; the ultrasonic transducer comprises a plurality of ultrasound array elements which are used for launching and receiving ultrasound; and the plurality of ultrasound array elements are arranged at the puncture needle head. During practical use, the plurality of ultrasound array elements are used for carrying out electronic scanning imaging, sothat, wide imaging range can be achieved; and thus, tissue structure in front of the puncture needle head can be effectively recognized, thereby facilitating planning of the best puncture path. Compared with the prior art, the ultrasonic puncture guidance device provided by the invention is closer to imaged tissues, so that, clearer imaging can be achieved; and thus, imaging is not liable to be affected by blocking by other parts. Moreover, the ultrasonic puncture guidance device is convenient to operate; and collaboration of multiple medical stuffs is not required.

The invention discloses a small wide-angle high and low temperature day and night confocal lens, which comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and an optical filter which are sequentially arranged from an object side to an image side along an optical axis; the first lens is a convex-concave spherical lens with negative focal power; the second lens is a concave-convex aspherical lens with positive focal power; the third lens is a concave-convex aspherical lens with positive focal power; the fourth lens is a biconvex spherical lens with positive focal power; the fifth lens is a biconcave aspherical lens with negative focal power; and the sixth lens is a biconvex aspherical lens with positive focal power. The lens has a large aperture, can realize clear imaging under weak light, has a large field angle, low distortion and high image trueness, has an imaging effect of 5million pixels, meets day and night sharing requirements, and is stable in working performance, small in overall size, low in cost and wide in application range in an environment of -40 DEG C to + 70 DEG C.

The invention relates to optical detection equipment which comprises a supporting mechanism, an image collecting mechanism movably carried on the supporting mechanism, a target located next to the supporting mechanism and below the image collecting mechanism, a lens carrying device located between the image collecting mechanism and the target and a bearing mechanism located next to the target forbearing the lens bearing device and being capable of adjusting the position of the lens bearing device, wherein the supporting mechanism, the target and the supporting mechanism are successively arranged from left to right. The optical detection equipment is simple in structure, convenient and rapid in detection process, high in detection precision and low in cost.

The invention discloses an esophagus internal intubation tube detection device and relates to the technical field of medical equipment. The esophagus internal intubation tube detection device comprises a supporting mechanism, a hinging mechanism, an imaging mechanism, a lead-in mechanism, a power mechanism, a detection mechanism and a transmission mechanism; the imaging mechanism is hinged with the upper surface of the supporting mechanism through the hinging mechanism; the right end of the lead-in mechanism is in inserting connection with the left side surface of the imaging mechanism; and the power mechanism, the transmission mechanism and the detection mechanism are positioned at the left end of the lead-in mechanism. According to the esophagus internal intubation tube detection device,through cooperative work of the power mechanism and the transmission mechanism, angle adjustment of a camera in the detection mechanism can be realized; through a controller in the imaging mechanism,the working state of the power mechanism is controlled, the angle of the camera can be adjusted rapidly and the imaging range is wider; and multi-angle image information acquisition in an esophagus of a patient can be realized without rotating a detection hose, so that the discomfort of the patient can be reduced.

The invention provides a pick-up lens. The pick-up lens sequentially comprises, from a light incident end to a light emergent end, a first lens; a second lens; a third lens; a fourth lens, wherein the surface, close to the light incident end, of the fourth lens is concave; a fifth lens, wherein the surface, close to the light incident end, of the fifth lens is convex, and the surface, close to the light emergent end, of the fifth lens is concave; a sixth lens with negative refractive power; a seventh lens; an eighth lens, wherein the surface, close to the light emergent end, of the eighth lens is concave; the distance TTL from the surface, close to the light incidence end, of the first lens to the imaging face of the camera lens on the optical axis and the half ImgH of the diagonal length of an effective pixel area on the imaging face meet the conditions that TTL/ImgH is smaller than 1.3 and ImgH is larger than 7.5 mm. The central thickness CT7 of the seventh lens on the optical axis and the air interval T78 of the seventh lens and the eighth lens on the optical axis meet the following condition: 0.5 < CT7/T78 < 1.0. The problem that in the prior art, the pick-up lens is poor in imaging quality is solved.