SiOnyx publishes a demo of its Aurora camera:
"The Sionyx Aurora camera looking at buffalo grazing about 1.5 hours after sunset. The first part of the recording is taken using Aurora's Twilight mode and the second part using Color Night Vision. Notice the pinkish color of the grass and trees. This is "Earth Glow" where IR energy collected in the atmosphere during the day time is reflected by plants at night. Aurora is able to detect and take advantage of that IR light."
Night glow energy is too low at ~1.1 microns for a CMOS camera to detect and the QE of the sensor at NIR wavelength is to low. You also need sub 20 electron noise in the ROIC.
ReplyDeleteThis is a totally false claim.
Check out https://www.photonics.com/Articles/The_Night_Glows_Brighter_in_the_Near-IR/a50540
Seems Sionyx technology modifies silicon bandgap so can detect mid (or even far?) infrared signal. Can anyone help to confirm this?
DeleteDid they ship their bloat toy yet?
ReplyDeleteYou can press "Buy Now" here:
Deletehttps://www.sionyx.com/store/p10/aurora.html
I wish they'd release a dashcam using this sensor, using a remote camera setup where the CPU unit is hidden away, not under the sun on the windshield. It'd make for great night driving videos. Also needs to support 256GB microSD cards.
ReplyDeleteAll the dashcams on the market use very small sensors and go for # of pixels rather than light gathering ability at night.
What's the pixel size and dynamic range?
Awww... it's also rolling shutter.
What a bunch of lies! SiOnyx is reaching for straws now that they blew it with most of their intended markets. They are claiming that plants "glow" in NIR at night. Wow... just wow.
ReplyDeleteI have come across so many people in decision making spaces that believe their hype. We got a hold of one of their Kickstarter cameras and it performs as good (rarely) or worse than Sony's latest Stratis sensors, which are way cheaper than SiOnyx. They overprocess the heck out of the image to make it look better than an untouched Sony.
They doted the silicon to extend the apsorbtion frequency over the 1100 nm limit. So you can catch more light. And they have large pixels. Both in combination gives you higher sensitivity. A bit like VisSWIR. Starvis from Sony has a very low noise, so it is maybe an alternative for "night vision".
ReplyDeleteWhat do you mean by dotted?
DeleteSee it here:
Deletehttps://image-sensors-world.blogspot.com/2015/09/black-silicon-presentation.html