I totally missed this patent. Found it on Action Camera Rumors while surfing the web.
The patent was spotted by Egami (translated). The patent is for a 2mm f/1.4, weather-sealed lens. Such a lens could be used in surveillance cameras, or, as Action Camera Rumors suggests, for an upcoming action camera made by Canon. I think the lens in the patent will go on some surveillance camera (since Canon is already active in this domain). However, not all patents make into a market product.
Given all the hype around action cameras, who can say Canon is not planning one? Egami also mentions the possibility that such a lens would fit well on an action camera.
Machine translated patent description:
- Patent Publication No. 2014-197128
- Published 2014.10.16
- Filing date 2013.3.29
- Focal length f = 2.03mm
- Fno. 1.44mm
- Half angle ω = 59.18 °
- Image height 3.00mm
- Overall length of the lens 32.17mm
- BF 0.51mm
- Canon patent of
- Focus position of the periphery of the screen is displaced When mounting the dome cover
- And suppress the deviation of the focus by changing the air space of the lens, depending on the presence or absence of the dome cover