8results about How to "Pixel height" patented technology

The application discloses a small-distortion large-view-field high-definition lens based on Q- TYPE aspheric surface, which comprises first lens elements, second lens elements,..., tenth lens elements and an aperture diaphragm arranged in sequence from left to right, the aperture diaphragm is arranged between the fifth lens element and the sixth lens element, two aspheric surfaces are adopted in total, and the front surface of the first lens element and the front surface of the tenth lens element are both Q- type aspheric surfaces. The application applies the novel Q- type aspheric surface to the design of the wide-angle lens, reduces the weight and processing cost of the lens, realizes small distortion, a large aperture and high pixels, strictly limits the structural parameters of the lens elements, finally realizes the size requirements of a long back intercept, a short total length of the system and a small first surface lens, so as to meet the assembly requirements, improves the processing and detection precision to a certain extent due to the excellent characteristics of the Q- type, and improves the optimization efficiency.

This application discloses an optical lens and an electronic device including the optical lens. The optical lens, along its optical axis from the object side to the image side, sequentially includes: a first lens with negative optical power, its object side being convex and its image side being concave; a second lens with negative optical power, its object side being concave; a third lens with positive optical power, its image side being convex; a fourth lens with positive optical power, its object side being convex and its image side being convex; a fifth lens with positive optical power, its object side being convex; a sixth lens with negative optical power, its image side being concave; and a seventh lens with positive optical power, its object side being convex; wherein the optical lens has seven lenses with optical power; the optical power φ23 of the cemented doublet lens formed by the cementing of the second and third lenses satisfies the following condition with respect to the total optical power φ of the optical lens: -0.25 ≤ φ23 / φ ≤ 0.

The invention provides an optical lens, which comprises four lenses with focal power, and sequentially comprises a first lens with positive focal power, a second lens with negative focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power and a sixth lens with negative focal power from an object side to an imaging surface along an optical axis, the object side surface of the second lens is a convex surface; 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 has positive focal power; wherein the optical total length TTL of the optical lens and the real image height IH corresponding to the maximum field angle of the optical lens meet the following conditions: 0.7 lt; tTL / IHlt; and 0.9. According to the optical lens provided by the invention, through specific surface shape matching and reasonable focal power distribution, the lens has one or more advantages of miniaturization, high pixel, small distortion, large aperture, high imaging quality and the like.

According to the high-pixel large-target-surface front-view optical system and the camera module applying the same, the optical system is composed of seven lenses, through reasonable matching of shapes and focal power of all the lenses, the optical system has the design advantages of being stable in performance, high in pixel, large in target surface, free of thermalization and free of ghost images; the imaging range and distortion requirements of the foresight intelligent driving optical system are effectively met, and the imaging effect of equipment matched with the system is improved.

This utility model provides a wide-angle optical system and its application camera lens, mainly composed of 7 lenses. The first lens has a convex object plane and a concave image plane, with negative optical power. The second lens has concave object plane and image plane, with negative optical power. The third lens has convex object plane and image plane, with positive optical power. The fourth lens has convex object plane and image plane, with positive optical power. The fifth lens has convex object plane and image plane, with positive optical power. The sixth lens has concave object plane and image plane, with negative optical power. The seventh lens has a convex object plane and a concave image plane, with positive optical power. The high-pixel machine vision recognition optical system configured in this application has the advantages of high pixel count, strong resolution, and ultra-wide-angle design. It has a compact structure, is easy to process and install, and further improves the imaging effect of the equipment paired with the system.

The application discloses a high-pixel, ultra-thin, large-angle optical system and a head-mounted device, which are mainly composed of six lenses, the number of lenses is reasonable, and the structure is simple. By reasonably distributing the ratio range of the maximum field angle of the optical imaging system and the axial distance from the object side of the first lens E1 to the imaging surface, the optical system further has a wide-angle characteristic while maintaining a small size, the imaging quality of the optical system is improved, the optical system has the advantages of high pixels and a large angle, meanwhile, the configuration of a large aperture can increase the light quantity of the optical system and the imaging quality, so that the head-mounted optical system has greater competitiveness in the head-mounted device market.

The invention discloses an optical system, a pick-up lens and an electronic device, and aims to realize lightening and thinning and shorter total length of the optical system and improve the pixel and imaging quality of the optical system. The optical system sequentially comprises a diaphragm, a first lens with positive focal power, a second lens with negative focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with positive focal power and a seventh lens with negative focal power from an object side to an image side along an optical axis, the object side surface of the first lens, the object side surface of the second lens, the image side surface of the third lens, the image side surface of the fifth lens and the object side surface of the sixth lens are convex surfaces in a paraxial region. The image side surface of the first lens, the image side surface of the second lens, the object side surface of the third lens, the object side surface of the fifth lens, the image side surface of the sixth lens, and the object side surface and the image side surface of the seventh lens are concave surfaces at a paraxial region. The optical system satisfies the relational expression: 1.45 lt; fNOlt, FNOlt; 1.9, 79 degree lt; a FOVlt; the angle is 91 degrees, 1.2 lt; and TTL / ImgHlt; and 1.4.

This invention provides a low-distortion, small-volume, high-pixel optical system and its application in a camera module, mainly composed of seven lenses. The first lens has negative optical power and its image-side surface is concave; the second lens has positive optical power and its object-side surface is convex, as is its image-side surface; the third lens has optical power; the fourth lens has optical power; the fifth lens has positive optical power and its image-side surface is convex; the sixth lens has positive optical power and its object-side surface is convex, as is its image-side surface; and the seventh lens has negative optical power and its object-side surface is concave. The system features a reasonable number of lenses and a simple structure. By rationally allocating the optical power of the lenses, lens aberrations are optimized, improving the imaging quality of the optical system. It offers advantages such as low distortion, small size, large aperture, and high pixel count. Furthermore, the large aperture configuration increases the amount of light entering the optical system and provides even higher imaging quality.