Category Archives: Patents

Ricoh files a patent for a 200mm f/2.8 full frame lens (for Pentax K-1)

Ricoh has a new patent application filed in Japan for a 200mm f/2.8 ED IF DC full frame lens (most likely designed for the Pentax K-1):

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The latest Ricoh patents

The latest Ricoh patents from Japan: → Ricoh has field a new patent applications in Japan for a lens with image stabilization and built-in low pass (AA) filter.

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Ricoh’s patents for a better visible AF patch

Ricoh filed a patent in Japan for a better visible AF patch / focusing points. See the before and after pictures from the patent application: Via Egami

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Ricoh’s patent for camera registration from the menu

Ricoh filed a patent in Japan for a simplified camera registration process that can be completed from the menu of the camera and be submitted directly trough the built-in Wi-Fi.

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Ricoh’s patent for a lens cap with a lock mechanism

Ricoh has a new patent application for a lens cap with a lock mechanism – in order to remove it, you have to pinch the two release handles and in addition press the lock mechanism button on the front that also serves as a manufacturer logo. Via Egami

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Two new Ricoh patents for improved live view and random pattern focusing screen

Two new Ricoh patent applications were filed in Japan: The first Ricoh patent is to improve live view image quality and reduce flickering. The second patent is for a random pattern focusing screen  – on the left you can see a schematic diagram showing moire on a general focusing screen, on the right you see a focusing screen […]

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Ricoh’s patent for contrast AF by the AE sensor

Ricoh filed a patent for contrast AF by the AE sensor in order to achieve accurate AF without using live view. Additional information available at Egami (Google translation).

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