Canon 10-22mm Liquid Lens Patent surfaced over the web, take a look at the details below…
Canon Patent Details —
Patent Publication No. 2014-145883
- Published 2014.8.14
- Filing date 2013.1.29
Example 4
- Zoom ratio 2.07
- Focal length f = 10.30-13.12-21.35mm
- Fno. 3.23-3.62-4.63
- Half angle ω = 52.86-46.03-32.50 °
- Image height 13.60mm
- Overall length of the lens 135.13-133.91-135.09mm
- BF 0.15mm
Canon patent of
- The shape of the interface is to variable and varying the power
- Zooming, and has refractive power and becomes positive element, the element is negative
To reduce the variability of field curvature
