MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202517094035 A) filed by Changzhou Aac Raytech Optronics Co. , Ltd. on September 30, 2025, for Photographic Optical Lens.
Inventor includes Huang, Zhe.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: Embodiments of the present invention relate to the technical field of optics. Disclosed is a photographic optical lens, consisting of a first prism, a first lens group, and a second lens group. The first lens group comprises a first lens and a second lens; the second lens group comprises a third lens, a fourth lens, and a fifth lens; the first lens group is movable for adjustment: 4.00=fA/IH=4.60; - 4.00=Rp1/Rp2=-0.14; 0.30=d1/d3=1.20; and -2.90=(R7+R8)/(R7-R8)=-1.20. The five-element lens is divided into a first lens group and a second lens group, and the first lens group moves for focusing, thereby achieving an internal focusing mode of the optical lens; the ratio of the focal length to the image height of the optical lens in a first state is set such that the optical lens has a longer focal length under a fixed image height, helping to improve the magnification of the optical lens. Configuring the concave-convex shapes of the first prism and the fourth lens helps to mitigate the degree of deflection of light passing through the lenses, thereby effectively reducing aberrations. Reasonably allocating the thicknesses of the first lens and the second lens helps to shorten the total optical length.
Disclaimer: Curated by HT Syndication.
