Category Archives: Nikon Patents

Nikon files patents for 10-30mm and 7-13mm lens for mirrorless cameras

By [NR] admin | Published: June 8, 2011

Nikon filed a patent application 20110116172 (Japan, US versions) for a 10-30mm f/3.3-5.6 and 7-13mm f/3.5-5.6 lenses: Are those two lenses for Nikon’s mirrorless solution? Almost: the image height of both lenses is 7.96mm (sensor diagonal of 15.92mm) which suggests a crop factor of 2.8x. Previous patents and rumors indicated a crop factor of 2.5-2.6x based on a sensor […]

Posted in Nikon Patents | 89 Comments

Nikon files a patent infringement lawsuit against Sigma

By [NR] admin | Published: May 25, 2011

This just in today – Nikon files a patent infringement lawsuit in Japan against Sigma over lenses with VR: “Nikon’s lawsuit seeks an injunction against Sigma’s manufacture and sale of infringing interchangeable lenses with vibration reduction for single lens reflex cameras, along with damages for past infringement. Although Nikon attempted to resolve Sigma’s patent infringement through […]

Posted in Nikon Patents | Tagged , , | 162 Comments

Nikon patent for ON/OFF optical low-pass filter (OLPF)

By [NR] admin | Published: May 21, 2011

Nikon filed a patent application in Japan (2011-97288) for an optical low-pass filter OLPF (aka as anti-aliasing filter) that can be turned ON or OFF depending on the need of the photographer: “The imaging device by the invention according to claim 1 receives object light via a photographing optical system, The low pass filter component which is arranged […]

Posted in Nikon Patents | 43 Comments

Interesting Nikon lens patents (incl. 10mm f/4 FX lens)

By [NR] admin | Published: May 18, 2011

Three interesting lens patent applications were just published. The first one 20110109974 is for a 10mm f/4 full frame lens: Example 1 is for a 17 mm f/4. Interestingly the image height is 33mm. This makes sense for a tilt-shift with +-12 mm of shift: F0 = 17.11 FNO = 4.08 .omega. = 63.03.degree. Y = […]

Posted in Nikon Patents | 126 Comments

Review of the latest Nikon patents

By [NR] admin | Published: May 9, 2011

Nikon filed a patent in Japan for a full frame 55-300mm f/2.8-4 lens:

Posted in Nikon Patents | 77 Comments

Nikon patents update (part 2)

By [NR] admin | Published: April 15, 2011

Back in November Nikon filed patents for 24mm f/2.8 and f/3.5 full frame lenses. Few weeks ago, a new patent 201159288 was filed in Japan for a 24mm APS-C lens: Two different versions of this lens were described in the patent – one with f/2.0:

Also posted in Nikon Lenses | 41 Comments

Nikon patents update

By [NR] admin | Published: April 15, 2011

It’s Friday – time for another Nikon patents update. First, a new patent application for a 10mm f/2 wide angle lens with a 155° angle of view: Next patent application 20110080659 is for a 18mm f/2.8 DX format (28mm equivalent). This lens is not designed for F-mount (back focus is 19mm) and is compact (58mm from image plane to front element) – […]

Also posted in Nikon Flashes, Nikon Lenses | 42 Comments