250 results about "Glass spheres" patented technology

The utility model relates to a low total length 8M foresight optical lens, which is characterized in that an optical system of the lens is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right along a light incident light path. The lenses are made of plastic and glass materials, the first lens, the second lens, the fourth lens, the fifth lens and the sixth lens are glass spherical lenses, the third lens and the seventh lens are plastic aspheric lenses, and the fifth lens and the sixth lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the distance between the lenses on the optical axis and the like, the total length of the lens and the radial size of each lens are reduced while the requirements of a front-view wide-angle camera and a front-view narrow-angle camera are replaced by the low-total-length 8M ultra-wide-angle imaging performance of the lens; and the lens group is miniaturized.

The utility model relates to a DMD welcome lamp lens with short total length, the lens is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens from left to right along a light incident light path, the lenses are made of glass materials, the first lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are glass spherical lenses, the second lens is a glass aspheric lens, wherein the third lens and the fourth lens, and the fifth lens and the sixth lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, the imaging performance requirement of the lens is met, the total length of the lens and the radial size of each lens are reduced, and a 33 mm lens group is formed.

This invention relates to the field of photovoltaic power generation technology and discloses a photovoltaic panel concentrating device and its concentrating method. The device includes a main body, with guide rods fixedly connected to the four corners of the top of the main body. A concentrating plate is rotatably connected to the end of each guide rod away from the main body, and a flexible ring rotatably connects the four concentrating plates. When the four concentrating plates rotate, the rotating plates cause a hollow frame to rise via a rotating plate. As the hollow frame rises, it causes a central glass sphere to rise synchronously and extend beyond the top of the concentrating plate. When the four concentrating plates form a semicircle around the glass sphere, sunlight from different directions can be concentrated onto the photovoltaic panel through the circular glass sphere, thereby enhancing the light intensity received by the photovoltaic panel and improving its power generation efficiency.

The invention discloses an oil-filled sealed photoelectric connector for an underwater vertical dynamic cable system. The oil-filled sealed photoelectric connector comprises a bent plug assembly and a socket assembly, wherein the bent plug assembly comprises a bent plug connector connected with the dynamic cable; a photoelectric contact component I is arranged in the bent plug component; the socket assembly is fixed on the detection unit glass sphere, and a photoelectric contact assembly II connected with a detection element in the detection unit glass sphere is arranged in the socket assembly; wherein the photoelectric contact component I is adaptively connected with the photoelectric contact component II. According to the invention, through application of the oil filling pipe, special sealing design and innovation of key technical points such as the oil-filled sealing photoelectric connector integrating the battery core wire and the optical fiber core wire, the water pressure resistance reliability, the sealing performance and the signal transmission stability of the connector in a deep sea high-pressure environment are remarkably improved; the device provides support for long-term stable operation of a deep-sea micro telescope, can be expanded and applied in the future, and meets other long-term application requirements of deep sea.

The utility model relates to a low total length 8M foresight main camera. An optical system of the main camera is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right along a light incident light path. The lenses are made of plastic and glass materials, the first lens, the second lens, the fourth lens, the sixth lens and the seventh lens are glass spherical lenses, the third lens and the fifth lens are plastic aspheric lenses, and the sixth lens and the seventh lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, the total length of the lens and the radial size of each lens are reduced while the requirements of a front-view wide-angle camera and a front-view narrow-angle camera are replaced by the low-total-length 8M ultra-wide-angle imaging performance of the lens, and the miniaturization of the lens group is realized.

The embodiment of the utility model discloses an ultra-wide-angle and ultra-short-focus full-width camera lens, which comprises sixteen lenses which are sequentially arranged from an object space to an image space along an optical axis, and each lens has corresponding focal power; besides, a diaphragm is arranged between the eighth lens and the ninth lens to divide the sixteen lenses into two lens groups, namely a first lens group with negative total focal power and a second lens group with positive total focal power. According to the full-frame prime lens provided by the embodiment of the utility model, by using the optical structure of the 14 glass spherical lenses and the 2 glass aspherical lenses, when the full field angle is greater than or equal to 132 degrees, the distortion is small, and the purple edge phenomenon is improved. Besides, by adding the aspherical lens, the image quality of an edge field of view is also obviously improved under an ultra-short focal length, clear imaging can be realized, and the shooting feeling of almost zero distortion is achieved.

The embodiment of the invention provides a projection lens and projection equipment. Wherein the projection lens sequentially comprises a first lens group, a diaphragm and a second lens group from an imaging side to an image source side along an optical axis; the first lens group is composed of a first lens, a second lens and a third lens, the first lens is a plastic aspherical lens, and the second lens and the third lens are glass spherical lenses; the second lens group is composed of a fourth lens, a fifth lens and a sixth lens, the fourth lens and the fifth lens are glass spherical lenses, and the sixth lens is a glass aspheric lens; the diaphragm is positioned between the third lens and the fourth lens; the projection lens satisfies the following conditions: 2 < T / D < 3.5; wherein T is the total optical length of the projection lens, and D is the maximum effective clear aperture in the first lens group.

The wide-angle lens comprises a first lens, a second lens, a third lens and a fourth lens which are sequentially arranged from an object plane to an image plane along an optical axis, the first lens is a glass spherical lens with negative focal power, the object side face of the first lens is a convex face, and the image side face of the first lens is a concave face. The second lens is a plastic aspheric lens with negative focal power, the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface. The third lens is a plastic aspheric lens with positive focal power, the object side surface of the third lens is a concave surface, and the image side surface of the third lens is a convex surface. The fourth lens is a plastic aspheric lens with positive focal power, the object side surface of the fourth lens is a convex surface or a concave surface, and the image side surface of the fourth lens is a convex surface. The glass spherical surface and the plastic aspheric surface are matched and combined, the resolution is improved, the total axis length is smaller than 10.5 mm, the aperture F can reach 1.6, the field angle FOV can reach 183 degrees, the relative illumination can reach 50%, and the lens has the advantages of being large in aperture, ultra-large in field angle, small in size and high in illumination.

The invention relates to an ultra wide angle pick-up lens suitable for a vehicle-mounted OMS system, an optical system of the lens is composed of a first lens, a second lens, a diaphragm, a third lens, a fourth lens and a fifth lens which are sequentially arranged from left to right along a light incident light path, the first lens is a meniscus concave negative lens, the second lens is a meniscus concave negative lens, and the diaphragm is a meniscus concave negative lens. The third lens is a biconvex positive lens, the fourth lens is a biconvex positive lens, the fifth lens is a meniscus concave negative lens, the fourth lens and the fifth lens form an achromatic doublet lens, the first lens and the third lens are both made of glass materials and are spherical lenses, and the second lens, the fourth lens and the fifth lens are all plastic aspheric lenses. By adopting the glass-plastic mixed optical structure of the two glass spherical lenses and the three plastic aspheric lenses, the advantage of aberration correction of the aspheric lenses is brought into full play, high-definition imaging is met, the lens outer diameter is smaller, the optical total length is shorter, and miniaturization of the lens is ensured.

The utility model discloses small-scale test equipment for synthesizing a PVC (Polyvinyl Chloride) lubricant, which comprises a spherical glass spherical tank, the lower half part of the glass spherical tank is placed in a heater, the top of the glass spherical tank is vertically provided with a central through pipe and side through pipes arranged around the central through pipe, and the side through pipes are used for introducing nitrogen into the glass spherical tank; a stirring motor is arranged right above the central through pipe, a stirrer is mounted at the lower end of a rotating shaft of the stirring motor, and the stirrer extends into the glass spherical tank from the central through pipe. According to the utility model, various raw materials can be conveniently and quantitatively added into the glass spherical tank according to requirements, and the raw materials are fully mixed by stirring, so that production conditions are accurately simulated in advance for testing before production.

High impact and penetration resistant lightweight composite panels include a foam core and an impact and penetration resistant protective layer on at least a portion of the lightweight composite panel. The foam core is a polymer and / or inorganic foam layer or sheet having first and second surfaces. A fiber mesh reinforced cementitious layer can cover one or both surfaces of the foam core. Example polymer foam cores include extruded polystyrene foam, expanded polystyrene foam, polyisocyanurate foam, or polyurethane foam. Example inorganic foam cores include perlite, ceramic microspheres, hollow glass spheres, glass foam, ceramic foam, expanded silica gel, porous wollastonite, urea-silicate foam, SiOC / SiC foam, refractory foam, and graphene. The impact and penetration resistant protective layer can be formed from polyurea, polyurethane, polyurea-polyurethane hybrid, polyaspartic, polymer-modified mineral binder, or hybrid resin-mineral composite. The protective layer can include a tightly woven scrim and / or a slip resistant filler embedded in the polymer.

A method for forming a super-insulating material for a vacuum insulated structure includes disposing glass spheres within a rotating drum. A plurality of interstitial spaces are defined between the glass spheres. A binder material is disposed within the rotating drum. The glass spheres and the at least one binder material are rotated within the rotating drum, wherein the binder material is mixed during a first mixing stage with the glass spheres. A first insulating material is disposed within the rotating drum. The binder material, the first insulating material and the glass spheres are mixed to define an insulating base. A second insulating material is disposed within the rotating drum. The secondary insulating material is mixed with the insulating base to define a homogenous form of the super-insulating material, wherein the first and second insulating materials occupy substantially all of the interstitial spaces.

A colored bilayer sub-ambient radiative cooling coating designed to enhance solar reflectance and aesthetic coloration is introduced. The coating includes a white bottom layer containing TiO2 or ZrO2 nanoparticles, and hollow glass spheres dispersed in a polymer matrix, and a colored top layer containing SiO2 microspheres and fluorescent pigments selected from Sr2Si5N8:Eu2+, Y3A15O12:Ce3+, (Ba,Sr)SiO4:Eu2+, or SrO·Al2O3:Eu phosphors dispersed in a polymer matrix. This bilayer structure achieves an effective solar reflectance of at least 90% and reduces surface temperature by at least 3° C. compared to ambient air, providing energy-efficient cooling with aesthetic appeal.

The present invention discloses a fixed-focus lens, which includes 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 arranged in sequence from the object plane to the image plane along the optical axis; the first lens has a negative optical power, the second lens has a negative optical power, the third lens has a positive optical power, the fourth lens has a positive optical power, the fifth lens has a negative optical power, the sixth lens has a positive optical power, the seventh lens has a positive optical power or a negative optical power, and the eighth lens has a negative optical power; the second lens, the seventh lens and the eighth lens are all plastic aspherical lenses, the third lens, the fourth lens, the fifth lens and the sixth lens are all glass spherical lenses, and the first lens is a glass spherical lens or a plastic aspherical lens. The fixed-focus lens provided by the present invention improves the image quality while reducing the lens volume and cost when monitoring an object with a relatively far object distance and low ambient brightness.

The invention relates to the technical field of photovoltaic power generation, and discloses a photovoltaic panel light condensation device which comprises a main body, guide rods are fixedly connected to the four corners of the top of the main body respectively, light condensation plates are rotationally connected to the ends, away from the main body, of the guide rods, and flexible rings are rotationally connected among the four light condensation plates. When the four light gathering plates rotate, the rotating light gathering plates can drive the hollow frame to ascend through the rotating plate, when the hollow frame ascends, the glass ball body in the middle can be driven to ascend synchronously, and the glass ball body extends out of the tops of the light gathering plates; sunlight from different directions can be gathered on the photovoltaic panel through the circular glass ball body, so that the illumination intensity received by the photovoltaic panel is enhanced, and the power generation efficiency of the photovoltaic panel is improved.

An optical system of the lens is composed of a first lens, a second lens and a third lens which are sequentially arranged from left to right along a light incident light path, the first lens is a plano-convex lens with positive focal power, the object side face of the first lens is a convex face, and the image side face of the first lens is a plane; the second lens is a meniscus lens with positive focal power, the object side surface of the second lens is a concave surface, and the image side surface of the second lens is a convex surface; the third lens is a meniscus lens with negative focal power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; the first lens is a glass spherical lens, and the second lens and the third lens are plastic aspheric lenses. A glass-plastic mixed optical system is formed by one glass spherical lens and two plastic aspheric lenses, and the lenses have high resolution, low distortion and low temperature drift by reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, and can clearly image at the temperature of-40 DEG C to 105 DEG C; the total length of the lens is greatly shortened, and miniaturization requirements are met.

This invention discloses an optical lens comprising ten lenses arranged sequentially along the optical axis from the object plane to the image plane. The first lens is a glass spherical lens with negative optical power; the second lens is a plastic aspherical lens with negative optical power; the third lens is a plastic aspherical lens with positive optical power; the fourth lens is a plastic aspherical lens with negative optical power; the fifth lens is a glass spherical lens with positive optical power; the sixth lens is a glass spherical lens with positive optical power; the seventh lens is a glass spherical lens with negative optical power; the eighth lens is a glass spherical lens with positive optical power; the ninth lens is a plastic aspherical lens with negative optical power; and the tenth lens is a plastic aspherical lens with positive optical power. Through this arrangement, and by rationally combining the optical power, position, shape, and material of each lens, a confocal infrared optical lens with ultra-large light transmission, a large target area, and an ultra-wide angle is designed.

The invention discloses a starlight-level high-definition optical lens, which belongs to the technical field of optical lenses and comprises a first lens, a diaphragm, a second lens, a third lens, a fourth lens and a photosensitive chip which are sequentially arranged along an optical axis from an object plane to an image plane, and the first lens, the third lens and the fourth lens are plastic aspheric lenses. The second lens is a glass spherical lens; the focal lengths of the first lens, the second lens, the third lens and the fourth lens are negative, positive, positive and negative in sequence. According to the optical lens, the FNo. is 1.6, the resolution reaches more than 4 million pixels by 80%, night vision confocal and purple halo weakening are achieved, and the cost is low.

The invention relates to a vehicle-mounted DVR optical lens and an imaging method. The vehicle-mounted DVR optical lens sequentially comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and an optical filter from an object side to an imaging surface along an optical axis, the first lens, the second lens, the third lens and the sixth lens are all glass spherical lenses, the fourth lens is a plastic aspheric lens, the first lens and the second lens have negative focal power, the third lens has positive focal power, and the fourth lens and the fifth lens form a balsaming lens group. According to the scheme provided by the invention, the size of the lens of the vehicle-mounted DVR can be reduced, and meanwhile, the imaging quality is improved.

The utility model relates to the technical field of recreation facilities, in particular to a globe-shaped astronomical swivel chair which comprises a base rail, a supporting frame arranged in the middle of the base rail, a rotating frame arranged above the supporting frame through a bearing, a glass ball arranged on the inner side of the rotating frame through a bearing, and rotating frames arranged on two sides of the rotating frame. Rollers are mounted at the bottom of the rotating frame through bearings. According to the astronomical swivel chair in the shape of the globe, tourists can drive the rolling wheels through the pedal plate to freely roll on the base rail so as to control the rotation of the rotating frame and the glass ball body, and the sense of participation and interactivity of the tourists are greatly enhanced through the active operation mode. The map layer installed on the surface of the glass sphere enables tourists to clearly see geographic features such as mountains, rivers, national boundaries and the like on the surface of the earth in the rotating process, teaching is achieved through lively activities, and the knowledge level of the tourists is improved. The seat arranged on the outer side of the rotating frame is reasonable in design and accords with the human engineering principle.

The present invention relates to an anti-corrosion zinc primer coating composition comprising hollow glass spheres and a conductive pigment. The coating composition of the present invention is particularly suitable for protecting iron and steel structures. In particular, the coating composition of the present invention comprises: a) a binder system, b) zinc particles, c) hollow glass microspheres, and d) a conductive pigment. The present invention also relates to a kit comprising the composition, a method for applying the composition, and a metal structure coated with the composition.

The invention relates to the technical field of optical imaging, in particular to a low-cost large-aperture high-definition vehicle-mounted lens and an imaging method thereof.The optical system of the lens is composed of a first lens body, a second lens body, a third lens body, a diaphragm, a fourth lens body, a fifth lens body and a sixth lens body which are sequentially arranged from the object side to the image side along the optical axis; wherein the first lens, the second lens, the third lens, the fourth lens and the fifth lens are glass spherical lenses, and the sixth lens is a glass aspheric lens. The lens material is reasonably selected, and the focal power, the surface type and the diaphragm position of each lens are reasonably distributed, so that the lens has the advantages of large aperture, high resolution, athermalization function, large clear aperture, high light transmission capability and bright and clear imaging pictures in different light environments; meanwhile, short-wave chromatic aberration is considered, and it is guaranteed that the imaging picture does not have the purple edge phenomenon.

The utility model belongs to the technical field of optical imaging systems, and particularly relates to a large-aperture lens. The optical system comprises a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens, a sixth lens and an imaging surface which are sequentially arranged from an object side to an image side. The first lens has negative focal power, and the object side surface and the image side surface are concave surfaces; the second lens has positive focal power, and the object side surface and the image side surface are convex surfaces; the third lens has positive focal power, the object side surface is a concave surface, and the image side surface is a convex surface; the fourth lens has positive focal power, and the object side surface and the image side surface are convex surfaces; the fifth lens has negative focal power, the object side surface is a concave surface, and the image side surface is a convex surface; the sixth lens has positive focal power, and the object side surface and the image side surface are convex surfaces. Wherein the fourth lens and the fifth lens are bonded to form a bonding lens. According to the utility model, the design of the six glass spherical lenses is adopted, and the large-aperture lens with a large angle, a large target surface and high definition is realized through reasonable distribution of focal power. Clear photos can be shot under a low light condition. The lens can be widely applied to the field of imaging lenses such as vehicle-mounted lenses and monitoring lenses.

The invention discloses a large-target-surface industrial lens. Comprising a first lens with positive focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with positive focal power, a fifth lens with negative focal power, a sixth lens with positive focal power, a seventh lens with negative focal power and an eighth lens with positive focal power which are sequentially arranged along an optical axis, the system comprises a first lens with positive focal power, a second lens with positive focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power, a sixth lens with positive focal power, a ninth lens with positive focal power, a diaphragm, a tenth lens with negative focal power, an eleventh lens with positive focal power, a twelfth lens with positive focal power, a thirteenth lens with negative focal power, and a fourteenth lens with negative focal power. The third lens and the fourteenth lens are glass aspheric lenses, and the rest lenses are glass spherical lenses. Through reasonable glass material selection and focal power distribution, collaborative optimization of a 4 / 3'inch super-large target surface, an image space F # 2.0 large aperture, high resolution and low distortion is realized, and a reliable solution is provided for a next-generation industrial visual system.

The present invention discloses a novel, highly interference-resistant, long-distance pH measurement system, comprising: a composite pH electrode bulb; a first lead connected to the composite pH electrode bulb and an Ag / AgCl reference electrode; a second lead connected to the Ag / AgCl reference electrode; a shielding layer sleeved around the outside of the second lead; and the second reference electrode, the lead of the second reference electrode being connected to an outer shielding layer; a common-mode rejection shielding drive circuit, an impedance conversion circuit, and a modulation and demodulation circuit; the first and second leads being connected to the common-mode rejection shielding drive circuit and the impedance conversion circuit, and the outer shielding layer being connected to the modulation and demodulation circuit. According to the present invention, the lead length of a conventional glass bulb electrode is significantly reduced through special shielding technology and a back-end acquisition circuit.

An optical system of the wide-angle lens is composed of a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens and a sixth lens, the first lens is a meniscus concave negative lens, the second lens is a meniscus concave negative lens, the third lens is a biconvex positive lens, and the sixth lens is a biconvex positive lens. The fourth lens is a biconvex positive lens, the fifth lens is a meniscus concave negative lens, the sixth lens is a biconvex positive lens, the fourth lens and the fifth lens form a bonding lens, the first lens and the third lens are glass spherical lenses, and the second lens, the fourth lens, the fifth lens and the sixth lens are all plastic aspheric lenses. The two glass spherical lenses are matched with the four plastic aspheric lenses for use, compared with an all-glass system, the system mass is lighter, compared with an all-plastic system, the optical performance stability is higher, and meanwhile the cost is reduced while the system adapts to the environment; and the imaging angle of an object is greater than 130 degrees.

The present invention relates to the field of lens technology. The present invention discloses an optical imaging lens, which includes a first lens to a fifth lens in sequence along an optical axis from the object side to the image side; the first lens is a convexo-concave lens with a negative refractive power; the second lens is a convexo-concave lens with a negative refractive power; the third lens is a convexo-concave lens with a positive refractive power, the fourth lens is a convexo-convex lens with a positive refractive power, the fifth lens is a convexo-concave lens, the first lens and the third lens are both glass spherical lenses, and the second lens, the fourth lens and the fifth lens are all plastic aspherical lenses. The present invention has the advantages of short total system length, low cost, large field of view, high resolution, good distortion control, and good imaging quality.

This utility model discloses a broadband imaging lens, comprising a lens group disposed inside the lens barrel. The lens group, arranged sequentially along the optical axis from the object plane to the image plane, includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, all of which are positive diopter glass spherical lenses. The first lens has a convex object-side surface and a concave image-side surface; the second lens has a convex object-side surface and a concave image-side surface; the third lens has a convex object-side surface and a concave image-side surface; the fourth lens has a convex object-side surface and a concave image-side surface; and the fifth lens has a convex object-side surface and a convex image-side surface. This broadband imaging lens has an EFL of 50mm, a spectral range of 400–1000nm, weighs less than 100 grams, has a center MTF of 32lp / mm > 0.5, and an edge MTF of 32lp / mm > 0.3. It exhibits high image quality, small size, low cost, and the lens head is also waterproof and dustproof.

The invention relates to a DMS optical lens based on an infrared image, an optical system of the lens is composed of a first lens, a second lens, a third lens and a fourth lens which are sequentially arranged from left to right along a light incident light path, and a diaphragm is arranged on an S1 surface of a lens L1. Wherein the first lens is a biconvex positive lens; the second lens is a plano-concave negative lens; the third lens is a meniscus convex positive lens; the fourth lens is a meniscus convex positive lens. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the axial distance between the lenses and the like, the design meets the imaging performance requirement of the lens, and meanwhile, the total length of the lens and the radial size of each lens are reduced by adopting the structural form of an all-glass spherical lens, so that the imaging performance of the lens is improved. The purposes of lens group miniaturization and cost reduction are achieved.