× Search
Canon Patent application: Lenses for APS-C 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: Lenses for APS-C compact cameras


This patent application has two lenses for compact cameras that are of APS-C in size. These would have to be compact cameras because the image circle at the wide end is not 13.66mm meaning some image stretching is occuring at the wide end.  This happens occassionally in the powershot cameras.

Lens embodiments mentioned are:

focal length  18.21 50.49 85.95 
F number       2.91  5.51  7.69 
angle of view 31.59 15.14  9.03 
image height  11.20 13.66 13.66 
lens length   72.62 82.25 93.33 
BF             3.86  3.86  3.86 

focal length  17.86 49.71 102.44 
F number       2.47  5.05   7.32 
angle of view 32.10 15.36   7.60 
image height  11.20 13.66  13.66 
length        62.60 73.89  86.71 
BF             3.94  3.94   3.94

Focal distance 15.21 52.83 102.65 
F number        1.85  4.20   6.00 
Field angle    36.19 14.50   7.58 
Image height   11.13 13.66  13.66 
length         83.84 101.55 121.52 
BF              3.81   3.81   3.81 

Japan Patent Application 2018-31935

Previous Article Canon applies for a patent for an improved electronic variable ND filter
Next Article Canon Patent Application: Improving Global shutter response
blog comments powered by Disqus

Keep In Touch


How to view Japan Patent applications.

Unfortunately, there's no direct way of linking to the patent application (sad!) however, this is the easiest process to view a japan patent or application.

  1. Go to the Japan Patent Office search page.
  2. If it's a patent application (they are usually in the format of Year-Number ie: 2017-011300) then type the patent application number into the second field down from the top where it says publication of patent application. 
  3. Click on search.
  4. Then click on the patent application number link, and there's the patent application!

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© 2024 by CanonNews. This site is not affiliated with Canon Inc. or it's subsidiaries.
Back To Top