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Canon applies for a couple of 1" sensor lens patents
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Canon applies for a couple of 1" sensor lens patents

Canon over several patent applications has applied for a lot of lenses for the 1" sensor.  These could be for surveillance or other purposes or some future powershot designs.

Canon Patent Application 2020-030252

This patent application discusses a 9-85mm F2.8-5.6 lens (equivalent focal of 24-233mm) with a 15mm (40mm) Macro function. The 9-85mm optical design is shown above.

Focal length      9.06  36.44 85.80 15.11  
F-number          2.88   4.14  5.47  5.47  
Angle of view    36.50  12.22  5.25  5.25  
Image height      6.71   7.89  7.89  7.89  
lens length      67.10  73.92 85.77 85.77  
BF                7.96   8.74 20.67 17.24  
Magnification    -0.00  -0.00 -0.00 -1.70  

It has another embodiment that is even more impressive as it's a 9-120mm or equivalent focal of 24-330mm) with again, a 40mm macro function.

Focal length      9.06  45.00 120.10  15.66  
F / No.           2.86   4.25   5.77   5.77  
Angle of view    36.50   9.94   3.76   3.76  
Image height      6.71   7.89   7.89   7.89  
lens length      87.71  92.89 107.94 107.94  
BF                7.33   8.94  21.68  15.00  
Magnification    -0.00  -0.00  -0.00  -1.70 

Canon Patent Application 2020-030250

This next patent application appears to identify a much simpler lens design. Most likely it allows it to be far more compact in nature.

The lens described in the patent application is a 9-42mm F2.8-F7.0 lens, which is 24mm-115mm equivalent focal length

An example embodiment is shown below;

focal length       9.06  18.00  42.65  
F-number           2.84   3.85   7.06  
Angle of view     35.66  23.67  10.48  
Image height       6.50   7.89   7.89  
Total lens length 77.00  66.08  79.54  

 

Previous Article Canon Patent Application: Canon RF 13-20mm F2.8
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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!

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