14results about How to "Small caliber" patented technology

The application discloses a three-working-mode common-aperture different-frequency decoupling series-fed antenna and a radio frequency communication device, which has three independent input ports, each of which supports one working frequency band, and the three input ports are supported by three coaxial feed lines, the three coaxial feed lines include a first coaxial feed line, a second coaxial feed line and a third coaxial feed line, and the application comprises a multi-frequency series-fed radiator, which is provided with a multi-frequency current regulation structure and is used for realizing horizontal omnidirectional high-gain vertical polarization radiation mode of three working frequency bands; and a filtering structure, each working frequency band corresponds to one filtering structure, and the filtering structure is used for realizing independent working response of the three working frequency bands and high isolation between different-frequency ports. Through the design of the multi-frequency series-fed radiator and the filtering structure, the antenna realizes three-working-mode common-aperture working through a single antenna body and has the characteristics of high-gain horizontal omnidirectional radiation and different-frequency decoupling.

The application relates to a projection light machine and a projection device. The projection light machine comprises a light source, a light cone, a collimating lens, a focusing lens and a lens which are arranged in sequence along the propagation path of the outgoing light of the light source; the light cone is used for collecting the outgoing light of the light source and emitting the light rays from an outlet; the collimating lens is used for collimating the light rays; the focusing lens is used for converging the light rays towards the lens; and the lens is used for projecting the light rays; the projection light machine satisfies the condition formula: [|ra2|, |rb2|]max <= D / 2; ra2 is the distance between the incident point of the light ray directly emitted at the edge of the outlet on the lens and the optical axis; rb2 is the distance between the incident point of the light ray emitted from the light cone after reflection at the edge of the outlet on the lens and the optical axis; and D is the effective aperture of the lens. The above projection light machine has small light ray loss, high light ray utilization rate and is beneficial to improving the projection brightness.

The invention discloses a pipeline assembly, a cleaning method, a cleaning device and cleaning equipment, the pipeline assembly is applied to the cleaning equipment, an air channel allowing airflow to pass through is formed in the pipeline assembly, the pipeline assembly comprises a flexible part, and the flexible part can be driven to deform in the direction pointing to the interior of the air channel or the direction away from the interior of the air channel so as to adjust the caliber of the air channel. Therefore, the airflow velocity is controlled. The pipeline assembly can drive the flexible part to deform in the working process to achieve caliber adjustment of the air duct, when large-particle garbage is cleaned, the flexible part can be driven to deform in the direction pointing to the interior of the air duct, the caliber of the air duct is reduced, the air speed is increased, and the problems that the large-particle garbage moves slowly and flows back are solved; when the cleaning device is applied to small-particle garbage cleaning, the flexible part can be driven to reset to the initial position, the caliber of the air duct is increased, energy consumption and noise are reduced, dual optimization of the performance and energy efficiency of the cleaning device is achieved, and user experience is improved.

The application discloses a kind of big zoom ratio mid-wave infrared optical systems based on secondary mirror switching and thermal light diaphragm variation F number, switching of short focal length and long focal length channel is realized by the cut-in and cut-out of secondary mirror, optical system transmits large field of view of short, medium focal length, reflects small field of view of long focal length, share rear group optical system and detector assembly, compact structure, small volume.Simultaneously, the rear group with thermal light diaphragm is designed separately, realizes variable F number design, together with the cassegrain reflective front group, realizes super long focal length structure, so that mid-wave infrared has four focal length segments of super long focal length / long focal length / medium focal length / short focal length, to realize the integration of large aperture, small field of view, long focal length compact design and large field of view, short focal length, wherein the F number of short, medium, long focal length is 4, the F number of super long focal length is 7, the lens of the application is suitable for high-resolution 640x512, 15 microns mid-wave refrigeration type detector, with the characteristics of large aperture, long focal length, large field of view, four fields of view have good imaging quality.

This application discloses an optical lens and an electronic device including the optical lens. The optical lens, along the optical axis from the object side to the image side, sequentially includes: a first lens having negative optical power and a convex object side and a concave image side; a second lens having optical power and a concave object side and a convex image side; a third lens having positive optical power; a fourth lens having positive optical power and a convex object side and a convex image side; a fifth lens having positive optical power and a convex object side and a convex image side; a sixth lens having negative optical power; and a seventh lens having optical power. The optical lens has seven lenses with optical power. The overall focal length F, maximum field of view FOV, image height H corresponding to the maximum field of view, radius of curvature R11 of the object side of the first lens, spacing d4 between the second and third lenses on the optical axis, and total optical length TTL of the optical lens satisfy the following: 55°≤(FOV×F) / H≤70°; |F / R11|≤0.4; 0.00266≤d4 / TTL≤0.004.

Provided is a lens. The optical assembly of the lens only comprises two positive meniscus lenses made of chalcogenide glass, which can reduce the aperture of the lens and simplify the structure, thereby reducing the corresponding cost and being suitable for large-scale industrial production. Since the two lenses constituting the optical assembly are abutted against the elastic connecting portion of the lens barrel, the stability of the connecting structure of the lens and the lens barrel is improved, the possibility of dislocation and separation of the lens and the lens barrel and damage of the lens under impact conditions is greatly reduced by buffering with the elastic connecting portion, thereby the impact resistance of the lens can be improved. The threaded connecting structure in the form of multi-start thread is adopted between the focusing ring and the lens barrel of the lens, so that the stability of the connecting structure of the lens barrel and the focusing ring is improved, and the possibility of jamming or dislocation of the focusing ring and the lens barrel under impact conditions due to impact is avoided, thereby the impact resistance of the lens can be further improved.

The present application belongs to wastewater and waste gas treatment technical field, specifically to a waterproof roll production wastewater and waste gas environmental protection treatment device, including water washing tower and treatment box, wherein, the inside of treatment box is sequentially provided with heat exchange cavity and wastewater treatment cavity from top to bottom, the inside of heat exchange cavity is provided with heat exchange mechanism along its front and back direction at equal intervals, and the inside of wastewater treatment cavity is provided with aeration mechanism; wherein, the heat exchange mechanism includes: S-shaped gas inlet pipe, S-shaped gas inlet pipe is distributed along the front and back direction of heat exchange cavity at equal intervals; S-shaped liquid inlet pipe, S-shaped liquid inlet pipe is sleeved on the outside of S-shaped gas inlet pipe; the aeration mechanism includes: flow channel plate, flow channel plate is distributed along the inside height direction of wastewater treatment cavity at equal intervals; fixed plate, fixed plate is fixed along the front and back direction of flow channel plate at equal intervals; aeration pipe placing groove, aeration pipe placing groove is arranged between two adjacent fixed plates. In the process of shunting treatment of wastewater and waste gas, the present application utilizes waste gas and wastewater during stirring heat exchange to reduce regional temperature difference.

The utility model discloses a magnetic immune micro-fluidic chip which comprises an upper chip layer, a middle glass substrate and a lower bottom plate, a plurality of detection channels are formed in the chip layer in the width direction, each detection channel comprises a capture area, and a sample inlet channel and a sample outlet channel are formed in the two sides of each capture area respectively; the sample inlet channel is provided with a sample inlet corresponding to the surface of the chip layer, and the sample outlet channel is provided with a sample outlet corresponding to the surface of the chip layer; and magnets are fixed on the bottom plate in positions corresponding to the capturing areas. The bottom plate of the chip is bonded and sealed by the tempered film, so that the chip has the advantages of good sealing performance, good fluorescence permeability, small thickness and the like. The bottom plate is detachably installed, the repeated utilization rate is higher, the chip layer is prone to blockage or cross contamination due to the fact that the caliber of the microfluidic channel is small, the upper side part can be detached, and the bottom plate and the magnet can be repeatedly used.

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 discloses a lens module, a camera module and an electronic device. The lens module comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a light adjusting piece. Light incident from an object side is incident on the light adjusting piece through the first lens, is deflected and emitted through the light adjusting piece, is incident on the second lens, the third lens, the fourth lens and the fifth lens, and is emitted to an image side to form an image. The optical axes of the second lens, the third lens, the fourth lens and the fifth lens are perpendicular to the optical axis of the first lens. The lens module satisfies the following formulae: 25 < f1 < 35, wherein f1 represents the focal length of the first lens; 5 < f2 < 10, wherein f2 represents the focal length of the second lens; f / (F*K11) < 1.65, wherein K11 represents the effective aperture of the object plane of the fourth lens, F represents the aperture of the lens module, and f represents the focal length of the lens module.

This invention provides an optical lens and an electronic device having the same. The optical lens includes: a first lens with negative optical power, having a first convex side and a second concave side; a second lens with negative optical power, having a first concave side and a second convex side; a third lens with positive optical power, having a first convex side and a second convex side; a fourth lens with positive optical power, having a first convex side and a second convex side; a fifth lens with negative optical power, a sixth lens with positive optical power, and a seventh lens with negative optical power; or a fifth lens with positive optical power, a sixth lens with negative optical power, and a seventh lens with positive optical power; satisfying: (FOV×F) / H≥95. This invention solves at least one of the problems in existing optical lenses: the inability to simultaneously achieve miniaturization and high resolution, pixel differences, poor image quality in low-light environments, and the inability to match the center angular resolution with higher pixel chips while satisfying a large field of view.

The present disclosure relates to the technical field of antennas, and particularly relates to a radiating unit and a base station antenna. The radiating unit comprises a plurality of radiating arms and a slow wave circuit structure, the slow wave circuit structure is arranged on at least one radiating arm; the slow wave circuit structure comprises a plurality of conductor segments arranged at intervals, the first ends of the plurality of conductor segments are connected with the radiating arm, and the contact surfaces of the conductor segments and the radiating arm have a certain included angle. The technical scheme of the present disclosure is beneficial to realizing miniaturized design of the radiating unit, weakening the influence of the low-frequency radiating unit on the performance of the high-frequency radiating unit, improving the stability of the radiation pattern of the high-frequency radiating unit in the array base station antenna, and improving the user experience.

This utility model relates to a dust collector waste collection module. The collection module includes a collection box that slides into a slot on the vacuum cleaner body. The top of the collection box has a collection hole communicating with its interior. When the collection box is inserted into the slot on the vacuum cleaner body, the drain port inside the vacuum cleaner body aligns with the collection hole. At this time, the collection hole and the drain port form a channel for waste to pass through, and the lower end face of the drain port is in contact with the upper surface of the collection box. When processing the waste in the collection box, the collection box is slid out of the slot on the vacuum cleaner body. Because the diameter of the collection hole is smaller than that of the drawer-type collection compartment, it can minimize the overflow of fine waste such as dust, thereby improving the collection effect. By adding a funnel-shaped guide cylinder inside the collection hole, the structure of being larger at the top and smaller at the bottom plays a role in preventing backflow, further reducing the overflow of dust and other waste.

The patent discloses a large-angle medical capsule endoscope optical system, and belongs to the optical lens field, which comprises first lens elements (L1), second lens elements (L2), optical filters (IR), light barriers (STO), third lens elements (L3), fourth lens elements (L4) and fifth lens elements (L5) arranged in sequence from an object plane to an image plane; and the focal lengths of the lens elements satisfy the following relationships: -135.02 < f1 / f < -138.73; -1.652 < f2 / f < -1.926; 1.349 < f3 / f < 1.682; 1.228 < f4 / f < 1.619; -1.346 < f5 / f < -1.304. The large-angle medical capsule endoscope optical system has good depth of field, small aperture, good tolerance, small distortion, and comparable resolution in liquid and air.