34results about How to "Achieving Broad Spectrum Confocal" patented technology

The invention relates to an ultra-wide-angle high resolution day and night dual-purpose camera lens which is characterized in that a front group (A) with negative focal power and a rear group (B) with positive focal power are respectively arranged along the incident direction from left to right of an optical path, the front group (A) comprises a negative meniscus lens (A-1) and a negative meniscus lens (A-2), the rear group (B) comprises a biconvex lens (B-1), a biconvex lens (B-2) and a cemented group with close connection of a biconvex lens (B-3) and a negative meniscus lens (A-4), and an optical stop (C) is positioned between the biconvex lens (B-1) and the biconvex lens (B-2). The ultra-wide-angle high resolution day and night dual-purpose camera lens has ultra-wide-angle, strong light power, high resolution and wide spectral confocal performance, and can provide a full-interface clear image better than 2 million pixels for a high-resolution network camera system and realize 24-hour continuous monitoring and no shift of an image focus during day-night switching.

The invention relates to video devices, monitoring devices and pick-up lens devices, in particular to a four-element high-resolution day-and-night dual-purpose multipoint varifocal lens. The multipoint varifocal lens in a novel four-element structural style has the advantages of high optical zoom ratio, large focal length, large aperture, high resolution, wide light spectrum, confocal property and the like; and the multipoint varifocal lens also has the characteristic of small structural length. The light path is composed of a front fixing element (A), an optical zooming element (B), a back fixing element (D) and a compensation element (E). Since the optical zooming element (B) and the compensation element (E) correspondingly move back and forth along the optical axis, the focal length of the optical system can be conveniently changed. In the light path design process, the focal power of the four elements are reasonably distributed, so that the optical lens has the performance indexes of high optical zoom ratio, large focal length and large relative aperture.

The invention relates to an ultra-high sensitivity medium wave refrigeration infrared athermalization lens and a work method thereof. The ultra-high sensitivity medium wave refrigeration infrared athermalization lens is characterized in that the optical structure of the lens successively comprises a negative crescent lens A, a negative crescent lens B, and a positive crescent lens C along a light incidence direction. The ultra-high sensitivity medium wave refrigeration infrared athermalization lens has the advantages of wide field angle, low distortion, mechanical athermalization compensation, portable structure, etc., utilizes the thermal expansion and contraction characteristic of mechanical materials under different temperatures to compensate for the temperature change influence on a focal plane, allows an athermalization design structure to be simpler, a whole product structure to be smaller and lighter, and optical axis stable imaging to be clearer and more reliable, and is more convenient to use under the condition of meeting user demands on product imaging performance.

The invention relates to a 5 mega-pixel micro camera lens with a large target surface. An optical system of the lens is provided with a front assembly A with negative focal power, a diaphragm C and a rear assembly B with positive focal power in the light ray incident direction from left to right; the front assembly A is sequentially provided with a negative crescent lens A-1, a biconcave lens A-2, a first gluing group which is formed through tight connection of a positive crescent lens A-3 and a biconcave lens A-4, as well as a biconcave lens A-5; and the rear assembly B is sequentially provided with a second gluing group formed through tight connection of a plano-convex lens B-1 and a positive crescent lens B-2, a biconvex lens B-3, as well as a third gluing group formed through tight connection of a biconvex lens B-4 and a positive crescent lens B-5. The lens has the advantages of ultra-wide field, high light gathering power, high resolution and broadband spectrum confocal performance, and can provide whole-interface sharp images superior to 5 mega-pixel for a high-definition network camera system.

The invention relates to a high resolution day and night confocal zooming aspheric lens. The optical system of the lens is successively provided with a negative focal power lens set front set A and a positive focal power lens set rear set B from a left incidence direction to a right incidence direction along a luminous beam; a diaphragm C is arranged between the front set A and the rear set B; the front set A comprises a negative crescent shaped lens A-1, a negative double-concave aspheric lens A-2, and a double-convex lens A-3 which are successively arranged from left to right, and the rear set B comprises a negative crescent shaped aspheric lens B-1, a double-convex lens B-2, a plano-concave type lens B-3, and a double-convex aspheric lens B-4 which are successively arranged from left to right. The high resolution day and night confocal zooming aspheric lens correspondingly moves back and forth through the front set A and the rear set B, and changes the focal length of the optical system.

The invention relates to a high-resolution fine adjustment day and night prime lens. A front lens set A with negative focal power and a rear lens set B with positive focal power are arranged in the optical system of the lens sequentially in the left-to-right light incidence direction. An iris diaphragm C is arranged between the front lens set A and the rear lens set B. The front lens set A comprises a positive meniscus lens A-1 and a negative meniscus lens A-2 sequentially from left to right. The rear lens set B comprises a double-concave lens B-1 and double-convex lens B-2 tightly-connected gluing assembly and a double-convex lens B-3 sequentially from left to right. The high-resolution fine adjustment day and night prime lens has the advantages of small distortion, large relative aperture and high resolution, can meet the requirement of three-million-pixel high-resolution video shooting, and achieves the wide spectrum confocal aim.

The invention relates to a small-target-surface high-resolution ultra-wide field fish-eye lens. According to the lens, an optical system is provided with a front group A and a back group B of lens groups along the light incidence direction from left to right in sequence, wherein a diaphragm C is arranged between the front group A and the back group B; the group A comprises a negative crescent lens A-1, a negative crescent lens A-2, a double-concave lens A-3 and a double-convex lens A-4 which are arranged in sequence from left to right; the group B comprises a double-convex lens B-1, a gluing group which is in sealed connection with a double-convex lens B-2 and a negative crescent lens B-3, and a double-convex lens B-4. The small-target-surface high-resolution ultra-wide field fish-eye lens has the performances of full view fields, water prevention, dust prevention, scraping prevention and utilization in day and night, and can be applied to security and protection monitoring of oversized view fields, particularly lobbies of hotels, clubs and the like.

The invention relates to the field of optical lenses, and particularly relates to a super-distant-vision glare-interference-prevention long-wave infrared optical athermalized automotive lens. The automotive lens comprises a main lens cone and an optical system arranged in the main lens cone, wherein the optical system comprises a negative crescent lens, a positive crescent lens and a biconvex lens which are sequentially arranged along the light incidence direction from front to back; and a rear clamping ring is arranged at the rear end of the main lens cone and is used for pressing the periphery of the rear side of the biconvex lens. The automotive lens has a simple structure and has certain temperature adaptability.

The invention relates to the technical field of optical lens devices, in particular to a three-piece far infrared electric whole set focusing type uncooled lens. The three-piece far infrared electric whole set focusing type uncooled lens comprises a main lens barrel, a first lens with positive focal power, a second lens with negative focal power and a third lens with positive focal power are sequentially arranged inside the main lens barrel in the incidence direction, from front to back, of light, the main lens barrel is sleeved with a sleeve, a connecting base is arranged at the rear end of the sleeve, and a focusing mechanism for focusing is arranged between the connecting base and the sleeve. The lens is simple in structure, and the imaging property is improved conveniently.

The invention relates to a high-contrast high-resolution day and night dual-purpose electric zoom lens. An optical system of the lens is sequentially provided with a front lens group A with negative focal power and a rear lens group B with positive focal power in the light direction from the left to the right. A diaphragm C is disposed between the front lens group A and the rear lens group B. The front lens group A comprises a negative crescent lens A-1, a biconcave lens A-2 and a biconvex lens A-3 from the left to the right. The rear lens group B sequentially comprises a biconvex lens B-1, the sealed glued combination of a biconvex lens B-2 and a biconcave lens B-3, a positive crescent lens B-4 and a biconvex lens B-5 from the left to the right side. The system is simple in structure, is compact in the assembly of the lens structure, is short in length, is small in size, is portable, is high in contrast, is stable in imaging quality, and is high in resolution.

The invention relates to an ingenious hand regulation type long-wave infrared-optical heat-free temperature measuring lens which is applicable to the field of optical lens units. The ingenious hand regulation type long-wave infrared-optical heat-free temperature measuring lens comprises a main lens cone, a negative crescent lens and a biconvex lens are sequentially arranged in the main lens cone along the incidence direction of light, a front compression ring is arranged at the position of the front side of the negative crescent lens in the main lens cone, a space ring is arranged between the negative crescent lens and the biconvex lens, and a connecting seat is further arranged at the rear portion of the main lens cone. The temperature measuring lens is not only simple in structure but also convenient in use.

The invention relates to a high-accuracy plastic high-definition lens, wherein a front group A with a negative focal power, a variable diaphragm C and a rear group B with a positive focal power are sequentially arranged in the optical system of the lens along the left-to-right incident direction of a light ray; a variable diaphragm C is arranged between the front group A and the rear group B; the front group A composed of a negative meniscus lens A-1, and a first glued group formed by airtightly connecting a biconcave lens A-2 and a biconvex lens A-3 which are sequentially arranged; the rear group B is composed of a biconvex lens B-1, a negative meniscus lens B-2, a second glued group formed by airtightly connecting a biconvex lens B-3 and a biconcave lens B-4, a biconvex lens B-5 and a planar-convex lens B-6. The high-accuracy plastic high-definition lens is capable of converting a trigger connector lens to a CS connector lens without influence on an imaging effect, and convenient to install and detach; and by using reinforcing plastic, the high-accuracy plastic high-definition lens is high in strength and elastic coefficient, high in impact strength, wide in use temperature range, excellent in electrical characteristics, and capable of improving the yield and back focal consistency thereof.

The invention relates to a high-resolution fisheye lens for day and night use. The high-resolution fisheye lens is characterized in that an optical assembly of the lens comprises a front lens group A with negative focal power and a rear lens group B with negative focal power which are arranged sequentially from left to right along the incident direction of light. The front lens group A is provided with a negative meniscus lens A-1, a plastic aspheric lens A-2 and a positive meniscus lens A-3 sequentially from left to right. The rear lens group B is provided with a plastic aspheric lens B-1 and a double-concave lens cemented group B-2 sequentially from left to right. The centers of the negative meniscus lens A-1, the plastic aspheric lens A-2, the positive meniscus lens A-3, the plastic aspheric lens B-1 and the double-concave lens cemented group B-2 are on the optical axis of light. The high-resolution fisheye lens of the invention has the advantages of compact structure, small size and low weight, and can be used both in the day and at night.

The invention discloses a knob type infrared focusing lens with a focal length of 54 mm and an assembly method thereof. The lens comprises a main lens barrel, and a first meniscus lens and a second meniscus lens which are sequentially arranged in the main lens barrel from an object side to an image side along an optical axis; the convex surface of the first meniscus lens faces the object side, and the convex surface of the second meniscus lens faces the image side; the focal power of the first meniscus lens and the focal power of the second meniscus lens are positive; the working wave band of the infrared focusing lens is 8 [mu] m to 12 [mu] m. According to the invention, aberration correction and balance are carried out on a wide spectrum range of 8 [mu] m to 12 [mu] m, so that the lens has excellent image quality in the wide spectrum range, and wide spectrum confocal is realized; through reasonable matching of focal power and design of an aspheric surface, a knob focusing mode is adopted, high resolution, high passing rate and low distortion can be obtained only by using two lenses, and air change between the lenses at different temperatures is completed to adjust the imaging performance of an optical system; the method is suitable for the long-wave infrared detector with the pixel of 1280X1024.

The invention provides a six-million high-resolution zoom lens. The lens comprises a lens shell and an optical system in the lens shell; a front fixation group A with focal power as positive, a zooming group B with focal power as negative, a rear fixation group C with focal power as positive and a compensation group with focal power as positive are orderly arranged at the optical system along a light incident direction; and a diaphragm is arranged between the zooming group B and the rear fixation group C; and a function of changing the optical system focal distance is realized through the backand forth corresponding movement of the zooming lens B and the compensation group C along an optical axis. The focal powers of the front fixation group A, the zooming group B, the fixation group C and the compensation group C are reasonably distributed in a reversed long-distance optical structure. In the fixation group C, a second ophthalmic lens is changed as a doublet lens group; and the compensation group D performs the compensation so that the lens reaches the performance indexes of being large in relative aperture, high in multiple proportion and short in structure length.

The invention relates to an ultra-high-sensitivity medium-wave cooling infrared athermalization lens and its working method. The ultra-high-sensitivity medium-wave cooling infrared athermalization lens is characterized in that: the optical structure of the lens is along the light incident direction A negative crescent lens A, a negative crescent lens B, and a positive crescent lens C are arranged in this order. The ultra-high-sensitivity medium-wave cooling infrared athermalization lens has the advantages of wide field of view, low distortion, mechanical athermalization and athermalization compensation, and light structure; it uses the thermal expansion and contraction characteristics of mechanical materials at different temperatures to compensate The influence of temperature changes on the focal plane makes the athermal design structure simpler, the overall product structure is smaller, lighter in weight, the optical axis is stable, the image is clearer, and the reliability is high. In terms of meeting the user's requirements for product imaging performance, the structure It is also more convenient for customers to use.

The invention relates to a high-precision plastic high-definition lens. The optical system of the lens is sequentially provided with a front group A with a negative focal power and a rear group B with a positive focal power along the incident direction of light from left to right. A variable diaphragm C is arranged between the front group A and the rear group B; the front group A is the first one in which the negative crescent lens A-1, the biconcave lens A-2 and the biconvex lens A-3 are closely connected. The latter group B is composed of a second cemented group, biconvex lens B-1, a negative crescent lens B-2, a biconvex lens B-3 and a biconcave lens B-4, which are arranged in sequence. Type lens B-5 and a convex-flat lens B-6. The high-precision plastic high-definition lens can convert the trigger interface lens into a CS interface lens without affecting the imaging effect, and it is easy to install and disassemble. It uses reinforced plastic, has high strength and elastic coefficient, high impact strength, wide operating temperature range, and excellent electrical characteristics. , improve lens yield and back focus consistency.

The invention relates to an economic day and night high definition zoom lens, and a control method thereof, belonging to the lens field. The economic day and night high definition zoom lens is applied to an intelligent security video shooting system, and has the characteristics of high optical index, large optical target surface, and resolution factor no less than three megapixels. In a technical scheme, the optical system of the lens is successively provided with a front set of negative focal power, and a rear set of positive focal power along a light incident direction; a changeable diaphragm is arranged between the front set and the rear set; the front set is successively provided with a negative crescent lens, a double concave aspheric lens and a double convex lens; the rear set is successively provided with a positive crescent lens, a double convex lens, a plano-concave lens and a double convex aspheric lens. According to the invention, the focal power of the front and rear sets is reasonably distributed in a retrofocus type optical structure, allowing a whole optical structure to be insensitive; the aspheric lenses enlarge the angle of a visual field, and rectify a lens image difference, thereby meeting fine definition video shooting requirements.

The invention relates to an ultra-wide-angle high resolution day and night dual-purpose camera lens which is characterized in that a front group (A) with negative focal power and a rear group (B) with positive focal power are respectively arranged along the incident direction from left to right of an optical path, the front group (A) comprises a negative meniscus lens (A-1) and a negative meniscus lens (A-2), the rear group (B) comprises a biconvex lens (B-1), a biconvex lens (B-2) and a cemented group with close connection of a biconvex lens (B-3) and a negative meniscus lens (A-4), and an optical stop (C) is positioned between the biconvex lens (B-1) and the biconvex lens (B-2). The ultra-wide-angle high resolution day and night dual-purpose camera lens has ultra-wide-angle, strong light power, high resolution and wide spectral confocal performance, and can provide a full-interface clear image better than 2 million pixels for a high-resolution network camera system and realize 24-hour continuous monitoring and no shift of an image focus during day-night switching.

The invention relates to a high-resolution miniature lens for daytime and night. An optical system of the lens is sequentially provided with a front set A with the focal power being negative and a rear set B with the focal power being positive in the incidence direction of light. The front set A is sequentially provided with a positive crescent lens A-1, a negative crescent lens A-2 and a biconvex lens A-3. The rear set B is sequentially provided with a positive crescent lens B-1, a single concave lens B-2, a gluing set closely connected with a biconvex lens B-3 and a biconvex lens B-4. The lens can form clear images in the light environment of daytime, also can form clear images in the low-light-level environment of night through infrared light supplementation, has the advantages of being small in distortion, large in relative aperture, high in resolution, high in performance cost ratio, wide in application range and the like and can adapt to the requirement of 5-mega-pixel high-resolution video shooting, thereby being a mainstream product for home monitoring.

The invention relates to a long-wave infrared mechanically passive athermal vehicle-mounted lens and an installation method thereof. The optical system of the lens includes lens A with positive refractive power and optical focal length arranged at intervals from left to right along the incident direction of light. The rear lens group B with negative power and the lens C with positive refractive power, both the lens A and the lens C are positive crescent lenses, and the lens rear group B is a negative crescent lens; the lens A and the lens rear The air gap between group B is 5.21mm, and the air gap between the lens rear group B and C lens C is 3.78mm; the lens also includes a main lens barrel, the lens A, lens rear group B and lens C It is arranged in cooperation with the inner wall of the main lens barrel at intervals from left to right. The invention makes use of the thermal expansion and contraction properties of the material and the application of the compensation shrapnel to make the athermal design structure simpler, the overall product structure smaller, lighter in weight, and high in reliability, and to meet the user's requirements for product imaging performance , the structure is also more convenient for customers to use.

The invention relates to a high-resolution fisheye lens for day and night use. The high-resolution fisheye lens is characterized in that an optical assembly of the lens comprises a front lens group A with negative focal power and a rear lens group B with negative focal power which are arranged sequentially from left to right along the incident direction of light. The front lens group A is provided with a negative meniscus lens A-1, a plastic aspheric lens A-2 and a positive meniscus lens A-3 sequentially from left to right. The rear lens group B is provided with a plastic aspheric lens B-1 and a double-concave lens cemented group B-2 sequentially from left to right. The centers of the negative meniscus lens A-1, the plastic aspheric lens A-2, the positive meniscus lens A-3, the plastic aspheric lens B-1 and the double-concave lens cemented group B-2 are on the optical axis of light. The high-resolution fisheye lens of the invention has the advantages of compact structure, small size and low weight, and can be used both in the day and at night.

The invention relates to an electric 2.8-12 zoom, electric focus monitoring lens and its control method. The lens includes a front group lens base and a rear group lens base, and the front group lens base is movably installed in the front group lens barrel. The outer side of the front group lens barrel is provided with a front group fan-shaped cam that drives the front group mirror base to move back and forth. The rear group mirror base is movably installed in the rear group lens barrel. The rear cam that the seat moves back and forth, the front group lens barrel and the rear group lens barrel are respectively connected with the reduction box through two main body guide nails; the focus stepping motor and the zoom stepping motor are arranged in the reduction box, and the The focus gear meshed with the output gear of the focus stepping motor is integrally produced on the front group of sector cams, which saves a lot of manpower and material resources; the focus stepping motor and the zoom stepping motor are arranged on the same side of the reduction box, which solves the structural interference Problem; the number of steps of the two stepping motors is 3400 steps, which makes the focusing precision high, the structure reasonable and the production easy.

The present invention relates to an electric zoom, focusing 7-22 zoom monitor lens and its control method. The lens includes a front lens base and a rear lens base. The front lens base is movably installed in the front lens barrel. The outer side of the front group lens barrel is provided with a front group fan-shaped cam that drives the front group lens base to move back and forth. The rear group lens base is movably installed in the rear group lens barrel. The rear cam that the seat moves back and forth, the front group lens barrel and the rear group lens barrel are respectively connected with the reduction box through two main body guide nails; the focus stepping motor and the zoom stepping motor are arranged in the reduction box, and the The focus gear meshed with the output gear of the focus stepping motor is integrated on the front group of sector cams, which saves a lot of manpower and material resources; the focus stepping motor and the zoom stepping motor are arranged on the same side of the reduction box, which solves the structural interference Problem; the number of steps of the two stepper motors is 3400 steps, which makes the number of steps more, the focus accuracy is high, the structure is reasonable and the production is easy.

The invention relates to a low-distortion and high-resolution infrared miniature lens. An optical system of the lens is provided with a front assembly A with negative focal power, an iris diaphragm C and a rear assembly B with positive focal power sequentially in an incidence direction from left to right along a light ray, wherein the front assembly A is provided with a positive crescent lens A-1, a negative crescent lens A-2, a negative crescent lens A-3 and a first agglutination group tightly connected with a double convex lens A-4 and a double concave lens A-5 sequentially; and the rear assembly B is provided with a double convex lens B-1, a second agglutination group tightly connected with a double convex lens B-2 and a double concave lens B-3 and a double convex lens B-4 sequentially. The lens has the advantages of compact structure, small size, light weight, low distortion, large relative aperture, high resolution, broad spectrum common focus and the like, can perform imaging clearly both in a lighting environment in the daylight and in an extremely low illumination environment at night, and can meet the requirement for shooting a fine definition video with a pixel of 8 million.

The invention relates to a high-resolution, low-distortion day and night dual-purpose fixed-focus lens. The optical system is provided with a front group A with a negative focal power, a diaphragm C with a positive focal power, and a rear group with a positive focal power in sequence along the incident direction of light. group, the front group A is sequentially provided with a negative crescent lens A-1, a negative crescent lens A-2, a biconcave lens A-3, and a negative crescent lens A-4 and a negative crescent lens A-5. The first cemented group, the rear group B is sequentially provided with a biconcave lens B-1, a second cemented group closely connected by a negative crescent lens B-2 and a negative crescent lens B-3, and a biconvex lens B-4. The lens has the advantages of high resolution, large relative aperture, day and night confocal, and low distortion. It can not only image clearly in daytime lighting environment, but also can image clearly at night with infrared supplementary light in extremely low illumination environment.

The invention relates to video devices, monitoring devices and pick-up lens devices, in particular to a four-element high-resolution day-and-night dual-purpose multipoint varifocal lens. The multipoint varifocal lens in a novel four-element structural style has the advantages of high optical zoom ratio, large focal length, large aperture, high resolution, wide light spectrum, confocal property and the like; and the multipoint varifocal lens also has the characteristic of small structural length. The light path is composed of a front fixing element (A), an optical zooming element (B), a back fixing element (D) and a compensation element (E). Since the optical zooming element (B) and the compensation element (E) correspondingly move back and forth along the optical axis, the focal length ofthe optical system can be conveniently changed. In the light path design process, the focal power of the four elements are reasonably distributed, so that the optical lens has the performance indexesof high optical zoom ratio, large focal length and large relative aperture.