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

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 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 a high-resolution fine-tuning day and night dual-purpose fixed-focus lens. The optical system of the lens is sequentially provided with the front group A of the lens group with negative focal power and positive focal power along the incident direction of light from left to right. The rear group B of the lens group, a variable diaphragm C is arranged between the front group A and the rear group B, and the front group A includes positive meniscus lens A-1 and negative meniscus lens A-1 arranged in sequence from left to right Moon-shaped lens A-2; the rear group B includes a cemented group of double-convex lens B-1 and double-convex lens B-2 arranged in sequence from left to right, and double-convex lens B-3. The high-resolution fine-tuning day and night dual-purpose fixed-focus lens has the advantages of low distortion, large relative aperture, and high resolution, and can meet the requirements of 3 million pixel high-definition video recording to achieve wide-spectrum confocal.

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 day and night confocal zoom aspheric lens. The optical system of the lens is provided with the front group A of the lens group with a negative focal power and a positive focal power along the incident direction of the light from left to right. The rear group B of the lens group, a diaphragm C is arranged between the front group A and the rear group B, and the front group A includes a negative crescent lens A-1, a negative double-concave aspheric surface arranged in sequence from left to right Lens A-2, double-convex lens A-3; the rear group B includes a positive crescent aspheric lens B-1, a double-convex lens B-2, a plano-concave lens B-3, and a double-convex aspheric surface arranged in sequence from left to right Lens B-4. The high-resolution day and night confocal zoom aspheric lens achieves the function of changing the focal length of the optical system through the corresponding movement of the front group A and the rear group B along the optical axis.