Category Archives: Patents

Ricoh OVF/EVF switchable hybrid viewfinder patent

Ricoh has a new patent 2018-151588 for an optical (OVF) / electronic (EVF) switchable hybrid viewfinder:

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Ricoh (Pentax) filed a patent for a DSLR cameras focusing screen

Ricoh (Pentax) filed a patent for a DSLR cameras focusing screen (JP 2018-151549):

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Ricoh has a new patent for a Pentax DA* 11-18mm f/2.8 lens

Ricoh has filed a patent in Japan for what appears to be a new Pentax DA* 11-18mm f/2.8 DSLR lens. The patent was published today (June 21st) but it was first registered back in December 2016. Tokina already has an 11-16mm f/2.8 while Pentax currently has the 15-30mm f/2.8 lens. Here is one of the calculations […]

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Ricoh has a new patent for an improved Pentax smc DA★ 16-50mm f/2.8 lens

There are already rumors that Ricoh is planning to revamp the current DA★ lenses with new motor drives and electronics and the first two lenses benefiting from this treatment will most likely be the current 16-50mm f/2.8 and 50-135mm f/2.8 models. In the case of the DA★ 16-50mm f/2.8 the revamping could include some tweaks […]

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The latest Ricoh patents (tilting sensor)

Ricoh has a new patent for a “photographing apparatus” with a tilting sensor that can focus on two objects at different distances with a tilting focal plane: The present invention relates to a photographing apparatus, and in particular relates to a photographing apparatus in which automatic tilt (automatic rotation) of an imaging plane (imaging surface […]

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HD Pentax-DA 645 90-180mm or 80-160mm f/4.5ED AW SR lens patent filed in Japan

A new patent for a Pentax DA 645 80-160mm f/4.5 lens (four examples in the patent application) or a 90-180mm f/4.5 lens (two examples) was filed by Ricoh in Japan. The lens is stabilized (just like the 90mm macro).

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This could be the patent for the “special” battery grip of the Pentax KP

This could be the patent corresponding to the “well-considered battery grip system” of the rumored Pentax KP camera. The grip attaches with a special locking handle and not by using the tripod socket as other cameras:

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