9results about How to "Achieve clear imaging" patented technology

This application provides an optical lens, a camera module, and a binocular stereo vision system. The optical lens, used in the binocular stereo vision system, includes multiple lenses, specifically at least eight lenses and a filter. Each lens has a different temperature coefficient of refractive index (dn / dT) to compensate for thermal defocusing when the temperature changes, thereby maintaining the total focal length of the optical lens within a preset range. Here, n is the refractive index of the lens, and T is the temperature. This optical lens achieves a balance of large field of view, high resolution, and clear imaging over a wide temperature range.

This invention relates to the technical field of concealed pipeline mapping, and in particular to an auxiliary device for rapid three-dimensional coordinate positioning of concealed pipelines in installation projects. The invention includes a mother drone equipped with a probe and camera mounted on it. A marking nozzle is connected to the mother drone, and the marking nozzle is connected to and installed on a daughter drone. The mother drone connects the marking nozzle and the daughter drone via a flexible hose and power cable. The device uses a mother drone integrating a probe and camera, enabling multi-angle, omnidirectional spatial scanning and image acquisition of concealed pipelines. This achieves rapid and accurate three-dimensional coordinate positioning of the concealed pipelines, significantly improving the accuracy and reliability of the positioning. The mother drone connects the marking nozzle and the daughter drone via a flexible hose and power cable, enabling remote synchronous control. The daughter drone can flexibly move to the pipeline positioning point and automatically complete on-site marking, avoiding errors associated with traditional manual line drawing and improving the accuracy and consistency of the marking.

The application discloses an intelligent visual projection method and system suitable for optical imaging, wherein the system comprises a visual stimulation control module for setting a visual stimulation control signal; an image output module for generating full-spectrum visual stimulation and light intensity according to the visual stimulation control signal; a spectrum switching module for receiving the full-spectrum visual stimulation and the light intensity and outputting first specific spectrum visual stimulation; an infrared light source module for outputting infrared spectrum visual stimulation; a spectrum processing module for filtering preset green spectrum signals of the first specific spectrum visual stimulation and integrating the infrared spectrum visual stimulation to output second specific spectrum visual stimulation; and an image stimulation focusing module for fine-tuning the projection area and light intensity of the second specific spectrum visual stimulation and projecting the second specific spectrum visual stimulation to a visual tissue region. The application can solve the problem that the prior art cannot meet the research demand of visual neural optical signals and has the characteristics of intelligence, automation, precision and no optical pollution.

The application discloses an autofocus method, system, device and medium for a step sample, and relates to the field of autofocus. The autofocus method comprises the following steps: acquiring a laser spot image; dividing the laser spot image into at least k segments along the transverse direction; calculating the defocus amount corresponding to each segment image through spot centroid calculation to obtain a defocus amount set; performing clustering analysis on the defocus amount set based on a preset cluster density to form a clusters; and sorting the mode or average value of the defocus amount in each cluster according to the numerical value, and setting the defocus amount of the step surface under each height type according to the focusing direction corresponding to the positive and negative signs of the defocus amount and the height value sequence of the step surface under each height type. Therefore, the minimum value k of the segmentation number is set, so that the a clusters after the clustering analysis correspond to the step surfaces under a kind of height, the interference of other height step surfaces on the spot information of the step surface to be focused is avoided during focusing, and clear imaging of each height step surface of the measured object surface is realized.

The utility model discloses a kind of oblique image zoom lens and anterior segment parameter measurement system, oblique image zoom lens includes: front fixed group, moving group and rear fixed group are sequentially arranged along light incident direction;Wherein, the front fixed group includes first lens and second lens sequentially arranged along the light incident direction;The moving group includes third lens;The rear fixed group includes fourth lens, cementing mirror group and fifth lens sequentially arranged along the light incident direction.The oblique image zoom lens and anterior segment parameter measurement system of the utility model can provide suitable optical zoom condition for anterior segment parameter measurement of different depth eye socket, can realize clear imaging to different depth eye socket, can make anterior segment and lens optical axis not perpendicular state, light still can be efficiently, correctly spread and focus, greatly widen the application range and operation convenience of measurement, powerfully promote the development and application of ophthalmic imaging technology in different eye socket population detection aspect.

The present application relates to a kind of multifunctional endoscope and endoscope system.Multifunctional endoscope includes endoscope body and optical catheter, endoscope body includes handle and endoscope catheter, endoscope body is equipped with channel sleeve kit in channel, the distal end of optical catheter is arc closed end, the proximal end is open end, at least the closed end of optical catheter is light-transmitting structure, optical catheter can be set on endoscope catheter by open end, and the open end of optical catheter and the distal end of handle or the proximal end of endoscope catheter are provided with the buckle structure of lockable matching connection.Multifunctional endoscope of the present application is highly integrated, can be used for the visualization puncture of tissue and the visualization suction, flushing, electrocoagulation etc after puncture Operation, and even if front end contact tissue can be clearly imaged in puncture process, and can avoid the problem that lens is stuck to blood or other tissue to cause blurred vision, and simple structure, easy to use, with good application prospect.

This application discloses a long-focal-length mid-wave infrared continuous zoom optical system, comprising a primary imaging lens group and a secondary imaging lens group. The primary imaging lens group includes: a first lens and a second lens forming a front fixed group; a third lens forming a zoom group; a fourth lens forming a compensation group; and a fifth lens forming a rear fixed group. During imaging, the focal length is changed by the movement of the zoom group along the optical axis, and the movement of the compensation group along the optical axis compensates for the image plane defocusing caused by the movement of the zoom group, thereby achieving clear imaging throughout the zoom process. Furthermore, a secondary imaging lens group is provided after the primary imaging lens group for re-correcting the image after the primary imaging, which can significantly reduce the lens aperture of each lens in the optical system. In addition, the optical system provided by this invention uses three plane mirrors to deflect the light path, further reducing the length of the entire optical system, thereby realizing a compact high-magnification continuous zoom optical system.

The application belongs to the technical field of projection lenses, and provides a Sharm lens for projection, a projection device and a projection system. The Sharm lens for projection comprises a rear group and a front group arranged in sequence from an object side to an image side along an optical path direction, and the rear group and the front group are separately and spacedly arranged; the rear group comprises a lens module with a positive optical power-negative optical power-positive optical power structure, and in the lens module with the positive optical power-negative optical power-positive optical power structure, a first positive optical power lens group, a first negative optical power lens group and a second positive optical power lens group are arranged in sequence from the object side to the image side along the optical path direction; and the front group comprises a negative optical power lens and a positive optical power lens arranged in sequence from the object side to the image side along the optical path direction. The Sharm lens for projection has the advantages of small F#, good imaging quality and the like through cooperation of the multiple lenses in the rear group and the front group.

This invention discloses an industrial lens, comprising a first lens group, a second lens group, and a third lens group. The positions of the first and third lens groups are fixed, while the position of the second lens group is movable. The first lens group includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The second lens group includes a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens, and a twelfth lens. The third lens group includes a thirteenth lens and a fourteenth lens. The movement of the second lens group along the optical axis enables focusing at different object distances. The fixed position of the first and third lens groups reduces the impact of focusing at different object distances on resolution, ensuring balanced image quality at various working distances. Furthermore, the rational setting of the number of lenses in each lens group is beneficial for achieving a high-quality industrial lens.