× Search


Canon Patent Application: Periscope lens for compact cameras
/ Categories: Canon Patents
This post may contain affiliate links(s). An affiliate link means I may earn advertising/referral fees if you make a purchase through my link, without any additional cost to you. It helps to keep this site afloat. Thank you in advance for your support. If you like what we do here, maybe buy me a coffee.

Canon Patent Application: Periscope lens for compact cameras

In this patent application, Canon looks at doing a periscope styled lens for a compact camera.

These have been getting all the fame lately for their use in smartphones to provide a telephoto lens without dramatically increasing the thickness of the smartphone.

It's kind of an odd patent application, because the lenses described in the patent are telephoto primes, and not zooms. However, to be fair to the patent author, the focal length equivalents are quite large.  I could see, as this patent mentions the value of making a small compact surveillance camera using these lenses as well.

The embodiments are for a 1/3" sensor.

focal length 57.20 (effective focal of 412mm!)
F-number 5.88
view angle 3.00
Image height 3.00
lens length 36.46
BF 2.00

focal length 72.00 (effective focal of 519mm)
F-number 5.88
field angle 2.39
Image height 3.00
Total lens length 45.00
BF 7.03

focal length 85.00 (effective focal of 612mm)
F-number 5.71
stroke Angle 2.02
Image height 3.00
Total lens length 53.00
BF 4.76


Previous Article Canon Patent Application: Canon EF-S Zoom lens
Next Article Leaked images of the upcoming Canon RF 70-200 F2.8L IS USM and Canon RF 85mm F1.2 DS USM
blog comments powered by Disqus

Theme picker

Keep In Touch


The Wait is Almost Over!


Our Preferred Sponsors

Want to buy me a coffee?

Free Shipping to the USA and Canada*

Use CANONNEWS for $10 off AuroraHDR

Use CANONNEWS for $10 off Luminar

*Conditions may apply
Terms Of UsePrivacy Statement© 2020 by CanonNews. This site is not affiliated with Canon Inc. or it's subsidiaries.
Back To Top