Search
× Search
Stacked Sensor Patent Application
CanonNews
/ 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.

Stacked Sensor Patent Application

When you stack or laminate a processing substrate and a sensor substrate as you can imagine you have heat generated from the processing substrate that can affect your image quality, especially in low light, or long exposure conditions.  Usually we use long exposure noise reduction which takes a second image (a dark frame) after your first image and removes the noise by subtraction.

This noise is called by what is called "dark current" and is usually purple-ish blobs in corners of your images, which shows where there was a heat source.

This of course is compounded when you have a processing chip stuck to the back of your sensor.  As we noted last week, canon is looking at improving this, first by eliminating as much heat as possible mechanically via heat sinks and other methods, and this week we find another application dealing with the same phenomena.

A stacked sensor may have the following heatmap;

what this patent application does is split up the sensor into various heat zones and provides specific correction for each zone.  it's not a replacement for LENR (long exposure noise reduction), however a method of reducing the noise from a more problematic level.

Japan Patent Application 2018-019227

Previous Article Another curved sensor patent application from Canon
Next Article Mirrorless Zoom patent application
Print
blog comments powered by Disqus

Keep In Touch

FacebookTwitterLinkedIn

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© 2021 by CanonNews. This site is not affiliated with Canon Inc. or it's subsidiaries.
Back To Top