Lesson plan

Multi-layer CCD

A multi-layer CCD is a CCD image sensor that captures true RGB using stacked CCD sensor layers. This concept was the subject of a 1978 Kodak patent application (issued 1986), but did not result in a working image sensor. The concept resurfaced as part of an April Fools' Day prank press release from dpreview.com. When the joke was released in 2000, a remarkably similar device was under development at Foveon—the Foveon X3 image sensor, which is multi-layered but is not a CCD. The Foveon sensor was announced on dpreview.com in 2002, with sample images.

Back to article

Article summary

A multi-layer CCD is a CCD image sensor that captures true RGB using stacked CCD sensor layers. This concept was the subject of a 1978 Kodak patent application (issued 1986), but did not result in a working image sensor. The concept resurfaced as part of an April Fools' Day prank press release from dpreview.com. When the joke was released in 2000, a remarkably similar device was under development at Foveon—the Foveon X3 image sensor, which is multi-layered but is not a CCD. The Foveon sensor was announced on dpreview.com in 2002, with sample images.

Key claims

  1. release date: 2000 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the release date is "2000". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1228136250

Key claims and bibliography are generated from the same tracked claims and sources as the article page.