Ricoh 26mm f/1.8 and f/2 Mirrorless Lens Patents

Egami has discovered a new patent filed by Ricoh. The new patent describes a Ricoh 26mm f/1.8 and f/2 lens for mirrorless APS-C sized sensor cameras.

It is the lens of 35mm equivalent terms corresponding to the APS-C mirrorless. But there is no news if Ricoh is going to launch a new APS-C mirrorless system.

Previously Ricoh has patents for 24mm f/2 lens too. See the patent details below.

Ricoh 26mm f/1.8 and f/2 Mirrorless Lens Patents

Description and self-interpretation of the patent literature

• Patent Publication No. 2014-81485
  • Publication date 2014.5.8
  • Filing date 2012.10.16
• Example 1
  • Focal length f = 26.00mm
  • Fno. 2.00
  • Half angle ω = 28.81 °
• Example 4
  • Focal length f = 26.00mm
  • Fno. 1.80
  • Half angle ω = 28.8 °

via EG