MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202644000878 A) filed by Canon Kabushiki Kaisha on January 05, 2026, for Optical System And Image Pickup Apparatus.
Inventor includes Natsuki Abe -.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: An optical system consisting of, in order from object side, a positive first lens unit, a stop, and a positive second lens unit, in which the first lens unit consists of first and second subunits, the first subunit includes a positive first lens and a negative second lens, the second subunit consists of a positive third lens and a negative fourth lens, the second lens unit includes a negative fifth lens, a positive sixth lens and plural lenses, a total number of lenses in the optical system is 10 or less, an air gap on optical axis between the first and second lens units is larger than a sum of air gaps between lenses of the second lens unit in infinity focus state, a focal length of the optical system, Petzval sum of the second lens, and average Abbe number of the fourth and fifth lenses are appropriately set.
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