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Thermal Imaging / Re: My decent in to Infrared abyss (IR microscopy and telescopy, on the cheap)
« Last post by ArcSin on Today at 01:28:44 pm »I have finally conquered the worst vignette issues, internal reflections and other optical distortions. I am now nearing a device that is useful for usage in a field for useful real-world applications where you need to see things way over there.
Sure, the useful FoV is still bit small, thanks to limitations of the sensor and the f/4 primary mirror. But considering that I can get 60%(i can probably get it to 80% by small refining, now that I read up on the subject and understand principles at work) performance of device that cost 500-1000% more, with off-the-shelf, non restricted parts. (one being kids educational newtonian telescope of all things...)
Here is some video of what I have. I have left out the post processing, whit it the image becomes much much more clearer. This is the raw, native resolution of the sensor, output smeared over youtube friendly format. It will look very nice with some mini oLED display, eyepiece optic and nice, enclosed, package. That will be next on my list of to do thing, getting the smart phone out of the loop and having some mini computer-board to run the camera, power delivery and some post processing in enclosed self contained, weather resistant package. Maybe adding a laser rangefinder module and compass, and to crown it all, a carousel style, motor driven, rotating lens assemblies for second, more modest zoom optic for 4x... sky is the limit! (the one in the video is more than x8, rough ranges are in video description).
PS: I compared to a ~1,5k dollar infray hunter scope, and while it did lose in image clarity, considering it had the 384 x 288 pixel sensor, it was able to resolve colder objects at greater distance by the virtue of having 50mm diameter primary collector, compared to 35mm lens it had.
Sure, the useful FoV is still bit small, thanks to limitations of the sensor and the f/4 primary mirror. But considering that I can get 60%(i can probably get it to 80% by small refining, now that I read up on the subject and understand principles at work) performance of device that cost 500-1000% more, with off-the-shelf, non restricted parts. (one being kids educational newtonian telescope of all things...)
Here is some video of what I have. I have left out the post processing, whit it the image becomes much much more clearer. This is the raw, native resolution of the sensor, output smeared over youtube friendly format. It will look very nice with some mini oLED display, eyepiece optic and nice, enclosed, package. That will be next on my list of to do thing, getting the smart phone out of the loop and having some mini computer-board to run the camera, power delivery and some post processing in enclosed self contained, weather resistant package. Maybe adding a laser rangefinder module and compass, and to crown it all, a carousel style, motor driven, rotating lens assemblies for second, more modest zoom optic for 4x... sky is the limit! (the one in the video is more than x8, rough ranges are in video description).
PS: I compared to a ~1,5k dollar infray hunter scope, and while it did lose in image clarity, considering it had the 384 x 288 pixel sensor, it was able to resolve colder objects at greater distance by the virtue of having 50mm diameter primary collector, compared to 35mm lens it had.
