What a beautiful compact instrument full of surprises. I love optical devices, same as the laser you did previously :) Absolutely amazing that we can get this type of stuff for a penny (ok, few pennies). Must have cost a fortune.
The main sensor looks like it is a multichannel plate amplified hybrid vacuum photodiode. It will have 0v on the case, up to 100v on the mcp, 0 volts at the top of the mcp facing the window, and -25 to -90v on the photocathode window. The detector plate will probably have about 200V or so with resistors and capacitors allowing or the signal.
I thought the whole thing might be a hybrid photodiode, but after reading your comment, those plates really look like the ones found night vision tubes
The unknown discs look an awful lot like Micro Channel Plates like those in this video ua-cam.com/video/v2Aae1FDEGc/v-deo.html MCPs are essentially ultra-compact pixelated photomultipliers. This explains the presence of the high voltage power supply as well.
@@lelabodemichel5162 sorry I didn't mean that... "to look an awful lot like something" is just an expression meaning "to appear very much like something"
Do the disks at 2:48 have a pattern? Or maybe they have an effect on polarization. Perhaps its just a liquid crystal. But it could also be a Lyot filter for wavelength. It might be interesting to measure the IV curve of the quadrant sensor (in darkness, at different temperatures).
What a beautiful compact instrument full of surprises. I love optical devices, same as the laser you did previously :)
Absolutely amazing that we can get this type of stuff for a penny (ok, few pennies). Must have cost a fortune.
liquid between lenses is for direct optical coupling two lenses in order to minimize optical errors.
The main sensor looks like it is a multichannel plate amplified hybrid vacuum photodiode. It will have 0v on the case, up to 100v on the mcp, 0 volts at the top of the mcp facing the window, and -25 to -90v on the photocathode window. The detector plate will probably have about 200V or so with resistors and capacitors allowing or the signal.
I like that random french man shows military tech =)
They have another random French guy that shows us military tech
The Black and White wires connect the HV to an Image Intensifier Plate(2-disks).
I thought the whole thing might be a hybrid photodiode, but after reading your comment, those plates really look like the ones found night vision tubes
MANTAP 🌟👍
Interesting sensor.
Could the plates be used also to have polarization feature?
The unknown discs look an awful lot like Micro Channel Plates like those in this video ua-cam.com/video/v2Aae1FDEGc/v-deo.html
MCPs are essentially ultra-compact pixelated photomultipliers. This explains the presence of the high voltage power supply as well.
Yes, they are MCP. But why awful ?
@@lelabodemichel5162 sorry I didn't mean that... "to look an awful lot like something" is just an expression meaning "to appear very much like something"
Do the disks at 2:48 have a pattern? Or maybe they have an effect on polarization. Perhaps its just a liquid crystal. But it could also be a Lyot filter for wavelength. It might be interesting to measure the IV curve of the quadrant sensor (in darkness, at different temperatures).
I agree and this channel is really cool
They are microchannel plates
Hi sir I want to design a small missile warning sensor for my uav project and I need your help please
What are you doing with those parts? I would love to have the optics from this!
Nothing, send me an email if you want them.
Those huge ceramic capacitors are not cheap.
Hi, pour faire une caméra extérieurs sans buée ni givre :)