Category Archives: Patents

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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New Ricoh patent for a Pentax Q 4.2mm f/1.8 lens

  Ricoh has filed a new patent in Japan for a 4.2mm f/1.8 lens calculated for a 1/1.7″ sensor (23mm equivalent for Q and D10 and 19mm for the Q7). This lens is most likely designed for the Pentax Q mirrorless camera system. If true, this means that Ricoh/Pentax have not abandon the Q system. The last […]

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Ricoh/Pentax phase detection AF patent

Ricoh filed a new patent in Japan for a phase detection AF that could be used to ensure precise AF during video/live view. Via Egami

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