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

ricoh-26mm-f1-8-and-f2-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