The latest Nikon patents: 400mm, 500mm and 600mm f/5.6 Phase Fresnel (PF) lenses

• 6 years ago
• Categories: Nikon Lenses, Nikon Patents
• Tags: Nikon 400mm f/5.6 lens patent, Nikon 500mm f/5.6 lens patent, Nikon 600mm f/5.6 lens patent, Nikon AF-S NIKKOR 500mm f/5.6E PF ED VR lens, Nikon BSI sensor patent, Nikon Nikkor 600mm f/5.6 PF lens, Nikon Nikkor Z 400mm f/4.5 mirrorless lens, Nikon Phase Fresnel (PF) lens

Nikon filed a patent (P2018-17857A) in Japan for a 400mm f/5.6 (22cm long), 500mm f/5.6 (28cm long) and 600mm f/5.6 (33cm long) full frame Phase Fresnel (PF) lenses.

Addition information on Nikon Phase Fresnel (PF) lenses can be found here:

Nikon’s Phase Fresnel (PF) lens explained

As of today the Nikkor 300mm f/4E PF ED VR is the only Nikon Phase Fresnel (PF) lens.

Another Nikon patent for a layered BSI sensor (P6048482).

Interestingly enough this Nikon patent describes “variable-power optical system (ZL)” – maybe a reference to the rumored mirrorless Z-mount? Update: ZL could also mean zoom lens. This patent is for a 14-28mm f/2.8 VR DSLR lens.