MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202437103618 A) filed by Changzhou Aac Raytech Optronics Co. , Ltd. on December 27, 2024, for Photographing Optical Lens.
Inventor includes Zhang, Tao.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: Disclosed in the present invention is a photographing optical lens, comprising six lenses, which successively include: a first lens having negative refractive power, a second lens having positive refractive power, a third lens having positive refractive power, a fourth lens having negative refractive power, a fifth lens having positive refractive power, and a sixth lens having negative refractive power. The focal length of the photographing optical lens is f; the focal lengths of the second lens and the fourth lens are f2 and f4 respectively; the on-axis thicknesses of the first lens and the second lens are d1 and d3 respectively; the on-axis distance from the image-side surface of the first lens to the object-side surface of the second lens is d2; the central radii of curvature of the object-side surface and the image-side surface of the first lens in the paraxial region are R1 and R2 respectively; the central radius of curvature of the image-side surface of the third lens in the paraxial region is R6; the central radius of curvature of the object-side surface of the fourth lens in the paraxial region is R7; and the following relational expressions are satisfied: 7.00=(f2-f4)/f=10.00; 2.50=(d1+d3)/d2=4.50; -0.70=R1/R2=-0.20; and -5.00=R7/R6=-1.50.
Disclaimer: Curated by HT Syndication.
