Canon continues to roll out the image sensor technology patents, as we get to see some new stacked and curved sensor patents. Canon News interprets all of these patents below.
Japan Patent Application 2018-019270:
We have found another patent application dealing with some of the problems and issues with curved sensors from Canon. Unlike some other recent cuved sensor patents, this is a fixed design with a set curve.
This is an overall patent discussing a curved sensor in general, and goes into specifics on the curving without talking about a method of manufacturing, but details an image sensor, including details of an actual sensor electronically. Read More…
Japan Patent Application 2018-019227:
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. Read More…
Japan Patent Application 2018-019314:
This patent deals with the problem of when you share A/D and related circuitry across multiple pixels (a common strategy) your time to read the entire sensor increases because you have to reach each of those pixels one at a time because you are switching between Pixel A to Pixel B to Pixel C. Read More…
Japan Patent Application 2018-019287:
This patent application looks to solve the ongoing problem of increasing the frames per second with the increase of pixels that the industry faces on a ongoing basis. It looks to increase the overall speed of digital value acquisition from the analog to digital converter Read More…