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low cost 2D realtime imaging spectroscopy

J

Jamie M

Jan 1, 1970
0
Hi,

2D realtime imaging spectroscopy in the visible spectrum could be done
with a Kyobo Ereader with the mirasol display, a lens, and a webcam and
software to drive the display and log data from the webcam.

http://www.intomobile.com/2011/11/2...-use-their-mirasol-displays-shipping-product/

http://en.wikipedia.org/wiki/Interferometric_modulator_display

A lens can project the image or light source onto the mirasol display,
and each pixel or groups of pixels are set to be a certain colour, if no
backlight is used, then the colour will only be reflected if it exists
in the light source at that 2D coordinate. So if a colour sweep
is done a full spectrum for that pixel can be measured with the webcam
viewing the mirasol display.

total cost of project maybe $200 depending on the lens! :)

cheers,
Jamie
 
M

Martin Brown

Jan 1, 1970
0
Hi,

2D realtime imaging spectroscopy in the visible spectrum could be done
with a Kyobo Ereader with the mirasol display, a lens, and a webcam and
software to drive the display and log data from the webcam.

http://www.intomobile.com/2011/11/2...-use-their-mirasol-displays-shipping-product/

http://en.wikipedia.org/wiki/Interferometric_modulator_display

A lens can project the image or light source onto the mirasol display,
and each pixel or groups of pixels are set to be a certain colour, if no
backlight is used, then the colour will only be reflected if it exists
in the light source at that 2D coordinate. So if a colour sweep
is done a full spectrum for that pixel can be measured with the webcam
viewing the mirasol display.

total cost of project maybe $200 depending on the lens! :)

You can do it for a demo for under $20 with a high dispersion
diffraction grating with a lower dispersion prism at right angles on a
standard Webcam CCD. Beware of infringing PE patents though.

Various amateur astronomy sites will give details.

Regards,
Martin Brown
 
J

Jamie M

Jan 1, 1970
0
You can do it for a demo for under $20 with a high dispersion
diffraction grating with a lower dispersion prism at right angles on a
standard Webcam CCD. Beware of infringing PE patents though.

Various amateur astronomy sites will give details.

Regards,
Martin Brown

Thanks, that's good for UFO hunting, as a normal camera won't be able
to tell if its looking at a human made light or not, but a multispectral
camera could see a different light spectrum from ET UFO's.

cheers,
Jamie
 
J

Jamie M

Jan 1, 1970
0
Still trying to catch a ride home, Maynard?

Hi,

Either that or trying to suggest a way to refute all of the supposed UFO
videos, ie phoenix lights.

cheers,
Jamie
 
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