4results about How to "With ultra-thin" patented technology

The application relates to the field of optical lenses and discloses a camera optical lens which comprises seven lenses in sequence from the object side to the image side, namely a first lens with positive refractive power, a second lens with negative refractive power, a third lens with positive refractive power, a fourth lens with negative refractive power, a fifth lens with positive refractive power, a sixth lens with positive refractive power and a seventh lens with negative refractive power; wherein the focal length of the camera optical lens is f, the focal length of the first lens is f1, the central curvature radius of the object side surface of the third lens is R5, the central curvature radius of the image side surface of the third lens is R6, the on-axis thickness of the second lens is d3, the on-axis distance from the image side surface of the second lens to the object side surface of the third lens is d4, and the following relationships are satisfied: 1.00 <= f1 / f <= 2.00; 2.00 <= d3 / d4 <= 5.00; and -10.00 <= R5 / R6 <= -1.00. The camera optical lens has good optical performance and meets the design requirements of large aperture, wide angle and ultra-thin.

This invention relates to the field of optical lenses and discloses a camera optical lens comprising seven lenses arranged sequentially from the object side to the image side: a first lens with negative refractive power, a second lens with positive refractive power, a third lens with positive refractive power, a fourth lens with negative refractive power, a fifth lens with positive refractive power, a sixth lens with negative refractive power, and a seventh lens with negative refractive power. The fifth lens is made of glass. The Abbe number of the fifth lens is v5, and the central curvature of the object side of the first lens is half... The diameter is R1, the central radius of curvature of the image side of the first lens is R2, the axial thickness of the first lens is d1, the radian value of the field of view of the camera optical lens is FOV (rad), the image height of the 1.0 field of view of the camera optical lens is IH, and the aperture value of the camera optical lens is FNO, and the following relationships are satisfied: 60.00≤v5≤82.00; -16.00≤(R1+R2) / d1≤-8.00; 6.00≤(FOV(rad)IH) / FNO≤7.30.

The application discloses an ultra-wide-angle small-caliber ultrathin optical system and an applied camera module, which are mainly composed of six lenses. Through reasonable distribution of optical powers and optimization selection of high-order aspherical surface parameters, the camera module can realize miniaturization, has small head, and has the functions of ultra-wide-angle shooting, miniaturization, ultrathin, compact structure, and is convenient for processing and installation. In addition, the camera module has good imaging resolving power.

The utility model discloses a kind of anti-deviation key spring, including spring body and base, the base has the cavity for installing three spring bodies, the spring body is arranged in cavity by laminated mode, the spring body includes fixed part, pressing part and the rebound part connected between the fixed part and the pressing part, the edge of the fixed part of the spring body is matched with the cavity side wall of the base, to limit the movement of spring body relative to base.Fixed part four-side corner anti-deviation convex edge forms static constraint, limits spring XY plane translation and rotation, the surface contact of cooperation fixed part edge and base cavity, completely avoid spring deviation, reduce and circuit board plating layer friction, further guarantee the contact resistance of silver plating layer, satisfy the low resistance, high electrically conductive stability demand of precision equipment.