48results about How to "Speed up heat loss" patented technology

The invention discloses a lightweight flexible LSOH (Low Smoke Zero Halogen) fire-resistant low-voltage marine cable and a process flow thereof. The lightweight flexible LSOH fire-resistant low-voltage marine cable comprises a tin-plated flexible conductor, a ceramic silicone rubber insulating layer, an LSOH flame-retardant filling material, an LSOH wrapping tape layer, an LSOH flame-retardant isolating sleeve, a metal braid armor shielding layer and an LSOH flame-retardant protection sleeve. The cable disclosed by the invention has the advantages of heat insulation, fire insulation, waterproofness, shock resistance, low thermal weight loss, low smoke, zero halogen, flame retardance and the like. In case of a fire, a hard shell formed by the insulating layer can take good effects of flame retardance, fire resistance, fire prevention and fire insulation and effectively ensures smoothness of a line. The cable has the advantages of being flexible, small in size, light in weight and excellent in mechanical property and electrical property, meets the requirement of a complex laying environment in a ship, can effectively save a ship space and reduce a light ship weight of the ship and improves a cargo dead weight of the ship.

The invention discloses a high-protective-property mobile phone shell. The high-protective-property mobile phone shell comprises a mobile phone shell outer shell, a mobile phone shell inner shell, elastic rubber and micro-fans. A cavity is formed between the mobile phone shell outer shell and the mobile phone shell inner shell, first springs are arranged at the positions, on the long sections between the mobile phone shell outer shell and the mobile phone shell inner shell, in the cavity, second springs are arranged at the positions, on the short sections between the mobile phone shell outer shell and the mobile phone shell inner shell, in the cavity, third springs are arranged at the positions, at the bottom between the mobile phone shell outer shell and the mobile phone shell inner shell, in the cavity, the two micro-fans are arranged at the positions, at the bottoms of the mobile phone shell outer shell and the mobile phone shell inner shell, in the cavity in a vertical symmetry mode, the four corners of the cavity between the mobile phone shell outer shell and the mobile phone shell inner shell are filled with the elastic rubber, multiple outer vent holes are formed in the surface of the mobile phone shell outer shell, and multiple inner vent holes are formed in the surface of the mobile phone shell inner shell. The high-protective-property mobile phone shell is simple and reasonable in structure and good in heat dissipation performance, meanwhile has good shock-proof performance, and has high promotional value.

The invention discloses a swing air-supplying type heat dissipation damping power distribution cabinet. The power distribution cabinet comprises a cabinet body, a transmission box, a supporting sleeve, a base, an air-supplying pipe, an air-exhausting pipe, an air blower, an exhaust blower, a swing sleeve, a number one toothed plate and a number two toothed plate; the air-supplying pipe is fixedlyerected at the bottom of a number one rotary rod; the air-exhausting pipe is fixedly erected at the bottom of a number two rotary rod; a rotary shaft is rotationally arranged in the middle part of aninner cavity of the transmission box; an eccentric wheel is fixedly mounted on the outer ring of the rotary shaft; the swing sleeve is glidingly arranged on the eccentric wheel in a sleeving manner; push-pull rods are symmetrically and fixedly welded on the two sides of the swing sleeve; the number one toothed plate is fixedly mounted on the end part of the push-pull rod on the left side of the swing sleeve; the number two toothed plate is fixedly mounted on the end part of the push-pull rod on the right side of the swing sleeve; and annular gears are fixedly mounted at the top ends of the number one rotary rod and the number two rotary rod respectively. The power distribution cabinet is simple in structure, reasonable in design, good in heat dissipation effect, high in damping and buffering effect and suitable for popularization and use.

The embodiment of the invention discloses a depth imaging optical system, which is provided with a first lens, a second lens and a third lens sequentially from an object plane to an image plane along an optical axis, wherein the object plane side of the first lens is a convex plane, the image plane side is a concave plane, and the focal power is negative; the object plane side of the second lens is a convex plane, the image plane side is a convex plane, and the focal power is positive; the object plane side of the third lens is a convex plane, the image plane side is a convex plane, and the focal power is positive; and the first lens and the third lens are aspheric lenses. On the other hand, the embodiment of the invention also provides a lens. The depth imaging optical system is mainly composed of three lenses, the number of the lenses is small, and the structure is simple; different lenses are adopted for mutual combination, the first lens and the third lens are aspheric lenses, and optical performance of large aperture, large view angle, low distortion, good athermalization and the like are realized.

Aspects of the disclosure include methods for treating hyperhidrosis in a subject with a composition including a muscarinic antagonist and a muscarinic agonist. In practicing methods according to certain embodiments, a therapeutically effective amount of a composition including a muscarinic antagonist or a pharmaceutically acceptable salt thereof and a muscarinic agonist or a pharmaceutically acceptable salt thereof is administered to a subject and is sufficient to reduce hyperhidrosis in the subject and to reduce a dry mouth side effect of the muscarinic antagonist. Compositions for practicing the subject methods are also described as well as dose units containing one or more of the subject compositions.

The invention discloses a zinc-cadmium electric heating smelting rotary kiln. A feed port (3) and an exhaust port (4) are arranged at the front end of a kiln body (1), a condenser (5) is arranged at the front section of the kiln body (1), a material delivery and preheating rotary barrel (6) is arranged in the middle of the condenser (5), and an automatic zinc liquid overflowing device (7) is arranged below the condenser (5); an automatic material sealing device (8) is arranged in the middle section of the kiln body (1), a graphite heating element (9) is arranged at the back section of the kiln body (1), an external surface of the kiln body (1) is provided with a transformer (10) and a brush gear (11), and a sealing device (12), a lead liquid enriching device (13) and an automatic residue discharge device (14) are arranged at the tail end of the kiln body (1). The rotary kiln meets requirements of environmental protection, energy conservation and circular economy, and is suitable for smelting zinc, cadmium and lead zinc mixtures as well as other non-ferrous metals.

The invention provides a pipeline flexible connecting device which is composed of at least one set of pipeline flexible connecting device unit. Each set of device unit is formed by no less than two layers of mutually-sleeved metal corrugated pipes and connecting members at two ends, and the pipeline flexible connecting device is characterized in that at least one closed space is formed among the mutually-sleeved metal corrugated pipes, at least one temperature is arranged on walls of a metal corrugated layer or a reinforcing layer of the pipeline flexible connecting device to monitor temperature during operating, and leakage alarming of the pipeline flexible connecting device is realized by judging obtained temperature change information. The pipeline flexible connecting device is safe in operating, low in cost, long in service life, high in strength, small in heat waste and good in flexible controllability and monitoring controllability.

The embodiment of the invention discloses a high-pixel ultra-wide angle optical system which sequentially 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 from an object plane to an image plane along an optical axis, wherein a convex surface is formed on an object plane side of the first lens, a concave surface is formed on an image plane side of the first lens, and focal power of the first lens is negative; a convex surface is formed on an object plane side of the second lens, a concave surface is formed on an image plane side of the second lens, and focal power of the second lens is negative; the third lens is a biconvex lens, and focal power of the third lens is positive; a concave surface is formed on an object plane side of the fourth lens, a convex surface is formed on an image plane side of the first lens, and focal power of the first lens is positive; the fifth lens is a biconvex lens, and focal power of the fifth lens is positive; the sixth lens is a biconvex lens, and focal power of the sixth lens is positive; a concave surface is formed on an object plane side of the seventh lens, a convex surface is formed on an image plane side of the seventh lens, and focal power of the first lens is negative; and the eighth lens is a biconvex lens, and focal power of the eighth lens is positive. On the other hand, the embodiment of the invention further provides a camera module. The high-pixel ultra-wide angle optical system, disclosed by the embodiment of the invention, has high properties suchas large aperture, large viewing angle, high pixel, excellent athermalization and the like.

The invention belongs to the field of cooling towers, in particular to a novel glass reinforced plastic cooling tower comprising a tower body, a water drain outlet, an air inlet pipe, an induced draftfan, a spraying mechanism, a water retaining unit and a heat dissipation unit. The bottom of the left side of the tower body is provided with the water drain outlet. The top of the tower body is provided with an opening. The induced draft fan is arranged in the opening and is fixed to the inner wall of the opening in the top of the tower body through a support. An inner cavity of the tower body is provided with the water retaining unit, the spraying unit and the heat dissipation unit sequentially from top to bottom. The water retaining unit comprises a plurality of glass reinforced plastic water retaining plates arranged in parallel. According to the novel glass reinforced plastic cooling tower, hot water is sprayed onto the heat dissipation unit through a water inlet pipe, a water spraying pipe and an atomization nozzle. The hot water makes full contact with cold air flowing in from the air inlet pipe, heat in the hot water is brought away, steam is generated, moves up, passes through the water retaining unit and absorbs part of water, and heat dissipation is quickened.

The embodiment of the invention discloses a large-aperture high-pixel camera module group, and the module group at least comprises a lens, a pedestal, and a light sensing device. The interior of the lens is provided with an optical system, and the optical system is sequentially provided with a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from the object space to the image space. The object plane of the first lens is a convex surface, and the image plane of the first lens is a concave surface. The object plane of the second lens is a convex surface, andthe image plane of the second lens is a concave surface. The object plane of the third lens is a convex surface, and the image plane of the third lens is a concave surface. The fourth lens is a biconvex lens. The fifth lens is a biconvex lens. The object plane of the sixth lens is a concave surface, and the image plane of the sixth lens is a convex surface. The fifth lens and the sixth lens form acombined lens, and meet a condition: TTL / EFL<=4.5. According to the invention, a lens cone mainly consists of the six lenses, and the number of lenses is small, and the structure is simple. The module group employs the combination of different lenses, and the fourth and fifth lenses are bonding lenses. The module group is large in aperture, is high in pixel, is low in distortion, and is good in athermalization.

The invention relates to the field of tea production, and particularly discloses a tea caking unravel machine, comprising a rack, a unravel cylinder, a tea collecting groove and a tea stem collectinggroove, wherein the side wall of the caking unravel cylinder is a spherical surface, and a material throwing plate is connected in the caking unravel cylinder, the inner side wall of the caking unravel cylinder is provided with an inclined torsion spring, and a material throwing motor is fixed on a rack; the material throwing plate is provided with a through hole; the side wall of the caking unravel cylinder is provided with a feeding port and a unravel cavity, and the feeding port is used for communicating an inner cavity of the caking unravel cylinder with the caking unravel cavity; a baffleis hinged to the inner wall of the caking unravel cylinder, and a closed torsion spring is arranged between the baffle and the caking unravel cylinder; centrifugal blades are connected in the cakingunravel cavity, and the caking unravel motor is fixed on the rack; the side wall of the caking unravel cylinder is provided with an air inlet, and a guiding groove is fixed on the top of the caking unravel cylinder; a winnowing tube is fixed at the bottom of the caking unravel cylinder. The caking unravel machine provided by the invention can disperse agglomerated tea.

The embodiment of the invention discloses a large-aperture optical system. The large-aperture optical system sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens along the optical axis from the object surface to the image surface; the object surface side of the first lens is a convex surface, the image surface side of the first lens is a concave surface, and the focal power of the first lens is negative; the object surface side of the second lens is a convex surface, the image surface side of the second lens is a concave surface, and the focal power of the second lens is negative; the object surface side of the third lens is a concave surface, the image surface side of the third lens is a convex surface, and the focal power of the third lens is positive; the fourth lens is a biconvex lens, and the focal power of the fourth lens is positive; the focal power of the fifth lens is negative; and the sixth lens is a biconvex lens, andthe focal power of the sixth lens is positive. On the other hand, the embodiment of the invention further provides a camera shooting module. The large-aperture optical system is mainly composed of the six lenses, the number of lenses is small, the structure is simple, and the cost is low; and the different lenses are mutually combined, the focal power is reasonably distributed, optical performance such as the large aperture, high pixel, low distortion and good athermalization is achieved, and the large-aperture optical system and the camera shooting module are suitable for the vehicle-mountedfield.

The invention discloses a protective clothing structure for operation at high temperature and a constructing method of the protective clothing structure for operation at high temperature. The protective clothing structure for operation at high temperature includes a top and a pair of trousers, invisible zippers are arranged on both the top and the trousers, meshed cloth pieces are arranged on thepositions of the inner sides of the invisible zippers, and the top and the trousers are opened by the invisible zippers; and the fabric of the top and the trousers include a first thermal insulating layer, a second thermal insulating layer and a moisture transmission layer from outside to inside. By opening the invisible zippers, the air in the protective clothing can exchange with the external environment by forced convection, which can effectively accelerate the loss of the heat produced by a human body. The first thermal insulating layer can reduce thermal radiation to the human body at high temperature by using the ability of a nanomaterial to reflect near-infrared rays; the second thermal insulating layer uses an immobile air layer in an aerogel porous structure to isolate the external high-temperature environment from the human body, phase change microcapsules absorb the heat produced by the human body during a phase change process, and the microcapsule structures can prevent leakage of a phase change material; and the moisture transmission layer has good effect of single-way moisture transmission, moisture absorption and fast drying. The protective clothing is convenient touse and comfortable to wear with good protective performance.

An embodiment of the present invention discloses a large-aperture wide-angle optical system. The optical system comprises the following parts from an object plane to an image plane along an optical axis: a first lens, a diaphragm, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. In addition, an embodiment of the present invention further provides a camera module. The large-aperture wide-angle optical system mainly comprises six lenses, so that the optical system has a small quantity of lenses, a simple structure, and low costs; and the diaphragm is between the firstlens and the second lens, which helps to shorten a front end aperture, so that an overall shape is moderate. In addition, the diaphragm is disposed near the front, different lenses are combined with each other, and a focal power is reasonably assigned, so that the optical system has optical performance such as being large in bore diameter, high in resolution, large in aperture, and good in athermalization, and is suitable for the automotive lens field.

A semiconductor device includes: a semiconductor substrate having an integrated circuit formed thereon and an electrode electrically coupled to the integrated circuit; a passivation film formed on a surface of the semiconductor substrate, the surface having the electrode formed thereon; a first metal layer formed so as to come into contact with the passivation film; a resin layer formed on the first metal layer; a wiring formed so as to be electrically coupled to the electrode and reach an upper surface of the resin layer; and a second metal layer formed so as to be in contact with the first metal layer and reach the upper surface of the resin layer.

The embodiment of the invention discloses a high-pixel ultra-wide-angle optical system. 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 are arranged along the optical axis from the object surface to the mirror surface; the focal power of the first lens is negative; the focal power of the second lens is negative; the focal power of the third lens is negative; the focal power of the fourth lens is positive; the focal power of the fifth lens is positive; the focal power of the sixth lens is positive; the focal power of the seventh lens is negative; the focal power of the eighth lens is positive. The optical system meets the formula that TTL / EFL is smaller than or equal to 16.8, wherein TTL is the distance from the side top point of the object surface to the imaging surface of the first lens of the optical system, and EFL is the valid focal power of the optical system. According to the embodiment, the optical system ismainly composed of eighth lenses and is simple in structure; different lenses are adopted and mutually combined, the focal power is reasonably distributed, and the optical system has the advantages of large aperture, wide visual angle, high pixel, extremely good athermalization and other good performance.

The embodiment of the invention discloses a high-pixel ultra-wide angle optical system which is provided with a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence from an object surface to an image surface along the optical axis, wherein for the first lens and the second lens, the object surface sides are convex surfaces, the image surface sides are concave surfaces, and the focal power is negative; for the third lens and the fourth lens, the object surface sides are convex surfaces, the image surface sides are concave surfaces, and the focal power is positive; for the fifth lens, the object surface side is a concave surface, the image surface side is a convex surface, and the focal power is negative; the fourth lens and the fifth lens are glued with each other to form a combined lens; the focal length f45 of the combined lens meets the following conditions: f45 is greater than 2 and less than 10, and TTL / EFL is less than or equal to 16.5. On the other hand, the embodiment of the invention further provides a camera module. The high-pixel ultra-wide angle optical system disclosed by the embodiment of the invention consists of the five lenses; as the number of lenses is small, the system is simple in structure; the total optical length is short, and the size is small; the high-pixel ultra-wide angle optical system has good performances of large aperture, large visual angle, high pixel, extremely high athermalization and the like.

The invention discloses a heat-conducting insulating composite material and a preparation method thereof. The preparation method of the heat-conducting insulating composite material comprises the following steps: 1) uniformly coating one side or two sides of an insulating film with heat-conducting silicone rubber; and 2) baking and rolling the insulating film coated with the heat-conducting silicone rubber in the step 1) to obtain the heat-conducting insulating composite material. According to the preparation method, the operation steps are simplified, the production efficiency is improved, unnecessary waste is reduced, the cost is reduced, and automatic production and use of customers are facilitated; the prepared heat-conducting insulating composite material is small in thickness, small in thickness tolerance, high in surface flatness and uniform in performance, does not need to be protected by a protective film, has excellent heat-conducting property, the heat conductivity coefficient is larger than 1 w / mk, the insulating strength is larger than 4 kv / mil, good heat conductivity and insulativity can still be kept in a high-temperature environment, and the product stability is good.

The invention relates to the technical field of projectors and provides a projector with a heat dissipation bulb socket. The invention aims to solve the problem of poor heat dissipation effect of bulbs of conventional projectors. The projector comprises a shell. A bulb, a light modulation device used for modulating light emitted from the light source device according to image information and a projection lens used for projection of light speed obtained through modulation of the light modulation device are arranged in the shell. The bulb is provided with a bulb socket body comprising a first metal drum and a second metal layer; the inner wall of the first metal drum is provided with a thread matching a threaded head of the bulb; the bottom of the first metal drum is provided with a through hole and an insulation ring is clamped in the through hole; the insulation ring is provided with an electric conduction pillar in the middle; a vacuum steam cavity is formed between the first metal drum and the second metal layer; the inner wall of the steam cavity is provided with a liquid absorbing core; the steam cavity is filled with working fluid; the first metal drum is connected with a conductor; the outer wall of the second metal layer is wrapped in a ceramic insulation layer.

The embodiment of the invention discloses a vehicle-mounted forward-looking optical system. The system sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, asixth lens and a seventh lens from an object plane to an image plane along an optical axis; the object plane side of the first lens is a convex surface, the image plane side is a concave surface, andthe focal power is negative; the second lens is a biconcave lens, and the focal power of the second lens is negative; the third lens and the fifth lens are biconvex lenses, and the focal power of thethird lens and the fifth lens is positive; the object plane sides of the fourth lens and the seventh lens are convex surfaces, and the focal power is positive; the object plane side of the sixth lensis a concave surface, and the focal power of the sixth lens is negative. On the other hand, the embodiment of the invention further provides a camera module. The optical system or the camera module ismainly composed of seven lenses. The number of the lenses is small, the structure is simple, the cost is low, and the overall appearance of the optical system or the camera module is moderate. Meanwhile, the optical system or the camera module has the optical performances of large aperture, high pixel, large aperture, good athermalization and the like, and is suitable for the field of vehicle-mounted lenses.

This application is a divisional application with application number 201910010426.8. The embodiment of the present invention discloses a high-pixel wide-angle day-night confocal optical system, which sequentially includes: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a Six lenses, the seventh lens and the eighth lens; the object plane side of the first lens is convex, and the image plane side is concave; the object plane side of the second lens is concave, and the image plane side is convex; the object plane side of the third lens The fourth lens is a biconcave lens; the image surface side of the fifth lens is a convex surface; the sixth lens is a biconvex lens; the object surface side of the seventh lens is concave, and the image surface side is a convex surface; the eighth lens is a biconvex lens. The optical system of the embodiment of the present invention is mainly composed of 8 lenses, the number of lenses is reasonable, the structure is simple, and it has good optical performance.

The invention provides a regenerative steam exhaust system of primary reheating unit steam turbines, and belongs to the field of thermal power plant equipment. The regenerative steam exhaust system ofthe primary reheating unit steam turbines comprises a steam turbine set, a nine-stage non-adjustable steam extraction set and first-stage adjustable extract steam, the steam turbine set comprises a plurality of steam turbines, the steam turbines are connected with non-adjustable extract steam corresponding in the nine-stage non-adjustable steam extraction set, the steam turbine set comprises thehigh-pressure steam turbine, the medium-pressure steam turbine and the low-pressure steam turbine, the first-stage adjustable extract steam is connected with the high-pressure steam turbine, the first-stage adjustable extract steam is further connected with a mark-zero high-pressure heater, and the mark-zero high-pressure heater and all stages of heaters are sequentially connected through a watersupply pipeline. According to the regenerative steam exhaust system of the primary reheating unit steam turbines, heat rate is good, compared with nine-stage regeneration unit, fuel saving is obvious,the unit fuel cost is greatly saved, through actual engineering calculation, a single million unit is provided with a regenerative steam extraction system of "9+1" stages, the comprehensive benefit of 20 years is about 30 million yuan, and the economic benefit is remarkable.

The invention discloses an anti-freezing device and method for an air energy water heater, and relates to the technical field of water heater freezing prevention. The anti-freezing device and method aim at solving the problem that the anti-freezing effect is poor. The anti-freezing device specifically comprises an evaporation coil pipe, wherein an installing plate is fixed to the outer wall of oneside of the evaporation coil pipe through bolts, and a temperature sensor is fixed to the outer wall of one side of the installing plate through threads; the inner walls of the top and the bottom ofthe evaporation coil pipe are connected with the same flow guiding pipe through threads, and two symmetric anti-seepage gaskets are fixed to the circumferential outer walls of the two ends of the flowguiding pipe through sealants; the outer walls of one sides of the two anti-seepage gaskets on the same side are connected with flow dividing pipes through threads; and the outer wall of one side ofthe flow guiding pipe is connected with a flow collecting pipe through threads, the circumferential outer wall of the flow collecting pipe is sleeved with an installing sleeve, and an adjusting mechanism is arranged in the flow collecting pipe. According to the anti-freezing device and method, heat losses are effectively accelerated, the temperature of surrounding air is rapidly increased, accordingly, the frost melting time is shortened, and the defrosting and unfreezing efficiency is improved.

The invention provides a space-time uniform distribution system for a tank liquid temperature field of an anode film-making tank, the film-making tank comprises an outer shell, a thermal insulation layer, a steel structure inner cavity with a tetrafluoro lining and a top cover, a plurality of anode plates and cathode plates are arranged in the film-making tank, the anode plates and the cathode plates are alternately arranged at equal intervals, a plurality of heating temperature control units are arranged on the membrane preparation tank, are arranged between the anode plate and the cathode plate in parallel, are independently controlled and do not interfere with one another, and are adaptive to power heating according to the requirements of different temperature control areas; and according to the intelligent heating temperature control method, the optimal heating power can be adapted under any environment condition, space-time uniform distribution of the temperature field of the film making bath solution is achieved, rapidness, accuracy and stability of heating and temperature maintaining are considered, and a uniform and stable temperature condition guarantee is provided for efficient film making on the surface of the lead-based anode.

A multifunctional steering wheel, characterized in that it includes a turntable body, a steering wheel centering prompt device, a Peltier sheet, a heat sink, a metal sheet, and an AC power supply; the steering wheel centering prompt device includes a fixed tray, a winding post, a vertical wire and weight; the fixed tray is located on one side of the bottom surface of the winding column cylinder, and the two are fixedly connected; the lower part of the winding column is provided with a vertical line; the weight is connected to the winding column through the vertical line; The Peltier sheet, the heat sink and the metal sheet are all arranged in the ring surrounded by the turntable body; the Peltier sheet is provided with a cooling port and a cooling port; the cooling port and the metal sheet The heat dissipation port is connected to the heat sink; the side of the metal sheet away from the Peltier sheet is connected to the turntable body; the AC power supply is electrically connected to the Peltier sheet.

The embodiment of the invention discloses a panoramic optical system based on free-form surface design, and the system sequentially comprises a first lens and a seventh lens from an object surface to an image surface along an optical axis: the object surface sides of the first lens and the seventh lens are convex surfaces, the image surface sides of the first lens and the seventh lens are concave surfaces, and the focal powers of the first lens and the seventh lens are negative; the second lens is a biconcave lens, and the focal power of the second lens is negative; the image surface side of the third lens is a concave surface, and the focal power of the third lens is negative; the object plane sides of the fourth lens and the fifth lens are convex surfaces, and the focal power of the fourth lens and the fifth lens is positive; the object plane side of the sixth lens is a concave surface, the image plane side is a convex surface, and the focal power is negative; the object plane sides of the eighth lens and the ninth lens are convex surfaces, and the focal power of the eighth lens and the ninth lens is positive. The optical system provided by the embodiment of the invention is mainly composed of nine lenses, adopts a free-form surface design surface type, and has the optical properties of ultra-wide angle, high pixel, elliptical image circle, good athermalization and the like.

The invention discloses a structure of protective clothing under high-temperature operation and a construction method thereof. It includes a coat and trousers. Both the coat and the trousers are provided with invisible zippers, and a mesh cloth piece is arranged on the inner side of the invisible zipper, and the coat is opened through the invisible zipper. and trousers; the fabrics of the coat and trousers include a first heat insulating layer, a second heat insulating layer and a moisture-conducting layer from outside to inside. By opening the invisible zipper, the air in the protective clothing can be exchanged with the external environment through forced convection, which can effectively accelerate the heat loss of the human body. The first heat insulation layer uses the performance of nanomaterials to reflect near-infrared rays to reduce heat radiation to the human body in high-temperature environments; the second heat insulation layer uses the static air layer in the airgel porous structure to isolate the external high-temperature environment from the human body and phase change microcapsules The phase change process absorbs the heat produced by the human body, and the microcapsule structure can prevent the leakage of the phase change material; the moisture-conducting layer has good one-way moisture-conducting and moisture-absorbing and quick-drying effects. The protective clothing is convenient to use, has excellent protective performance and good wearing comfort.

The invention relates to a curved glass hot-pressing processing technology which comprises a bottom plate frame, a fixed frame and a hot-pressing assembly, the fixed frame is installed at the upper end of the bottom plate frame, electric heating nets are evenly arranged on the left side of the inner wall of the fixed frame, the section of the fixed frame is of a U-shaped structure, and the hot-pressing assembly is arranged in the fixed frame and installed on the bottom plate frame. The equipment can solve the problems that when existing equipment is used for heating glass, the heating effect is poor, flat glass cannot be effectively heated and softened, meanwhile, the glass cannot be accurately subjected to hot-pressing shaping, so that the formed glass is prone to having defects, and when the existing equipment is used for cooling the glass, the heating effect is poor. The problems of poor cooling effect, low efficiency, incapability of effectively cooling the formed glass, more heat loss during cooling, energy waste and the like are solved.