How do i explain to someone its not about megapixels ?

Started Oct 4, 2013 | Questions thread
dholl Veteran Member • Posts: 3,233
Re: the cult of DPR

bobn2 wrote:

dholl wrote:

bobn2 wrote:

The inventor of the CMOS sensor, so far as I'm aware, doesn't post on these forums. Eric invented the active pixel sensor.

Eric R. Fossum is best known for the invention of the CMOS image sensor “camera-on-a-chip” used in billions of cameras

Although..."billions" of cameras? Have they really made that many?

'CMOS Image sensor "camera on a chip"', not 'CMOS Image sensor'.

Eric's contribution (and it was a big one) was the idea of building a one stage CCD and charge amplifier in each pixel, as detailed in his 1995 Patent, while he was at Caltech

As Prior art, Eric's patent cites this one form Toshiba for a CMOS sensor, with a priority date in 1990. CMOS sensors were originally developed from DRAM chips, and people were experimenting taking the lids of CMOS DRAMs in the 1980's. I tried it myself. Results weren't good, but it was a CMOS imager.

Right. So Eric invented the CMOS Image Sensor, but he didn't invent the CMOS Image Sensor?


From Wikipedia:

Eric R. Fossum (born 1957) is an American physicist and engineer, inventor of the CMOS image sensor.

(note the full-stop at the end there.)

Calling it "active sensor, camera-on-a-chip" instead of "CMOS Image Sensor" just sounds like dancing around semantics.

Anyway, whichever is true is hardly relevant to the OP's query.  We've shared our opinions, yours is technical, mine seems more based in the real world.  The OP can take from our little debate what he needs for his argument.

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