Tag Archives: Patents

Leica 23mm f/2 ASPH lens patent

Last year Leica filed a patent in Japan for a 23mm f/2 ASPH lens designed for mirrorless APS-C cameras. This could be a variation of the lens on the Leica X (23mm f/1.7) or the existing Summicron-T 23mm f/2 ASPH lens for TL mount. Here are the details:

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Leica’s patents for optoelectronic rangefinder

Leica Camera has several patents for a hybrid “optoelectronic rangefinder” that might be used in the next M model:

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Leica Camera AG licenses patent portfolio of Intellectual Ventures

Leica Camera AG has licensed a patent portfolio of Intellectual Ventures™ (IV) to strengthen the existing intellectual property (IP) strategy and position of Leica Camera.The agreement provides the Wetzlar based manufacturer of cameras and sport optics products with a license to IV’s patent portfolio of nearly 40,000 IP assets in more than 50 technology areas, […]

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Epson’s patent to display manual lens information on screen/viewfinder

Epson filed patent 2012-186726 in Japan for a way of displaying manual lens information (aperture, focal length, focusing distance) on the camera LCD screen or viewfinder. This can be achieved with a small camera located above the lens that captures the lens information and shows it on the LCD screen:

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