MUMBAI, India, Aug. 24 -- Intellectual Property India has published a patent application (202514104065 A) filed by Zhejiang Sunny Optics Co. , Ltd. on October 29, 2025, for Optical Imaging Device.
Inventors include Xu, Shidong; and Zhao, Pin.
The application for the patent was published on August 21, 2026, under issue no. 34/2026.
Abstract: The present disclosure provides an optical imaging device. The optical imaging device includes a lens barrel, and a lens group and a spacer element group in the lens barrel. The lens group consists of eight lenses, which are, from an object side to an image side sequentially: a first lens having a negative power, a second lens having a negative power, a third lens having a positive power, a fourth lens having a negative power, a fifth lens having a positive power, a sixth lens having an optical power, a seventh lens having a positive power, and an eighth lens having a positive power. The spacer element group includes a fourth spacer element, a fifth spacer element, a sixth spacer element, and a seventh spacer element. The optical imaging device satisfies: 1.4 f8/f 2.9; and -4.2 d7m/(R15+R16) -2.2. The present disclosure solves the problem of serious tail stray light in an eight-element optical imaging device caused by the eighth lens with a higher refractive power while satisfying the imaging effect in the existing art.
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