{"id":16015,"date":"2024-07-10T13:46:40","date_gmt":"2024-07-10T13:46:40","guid":{"rendered":"\/?p=16015"},"modified":"2024-07-10T14:24:31","modified_gmt":"2024-07-10T14:24:31","slug":"16015","status":"publish","type":"post","link":"\/?p=16015","title":{"rendered":"Using ZnSe and GaAS lenses with Sony Starvis and similar detectors at high gain and frame rates for machine vision applications"},"content":{"rendered":"
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To: Fuzhou Hundreds Optics Inc<\/h3>\n

100Optics.com,<\/p>\n

Some very low light and NIR sensors might be able to pick up LWIR, out to thermal wavelengths 5-15 microns — if they used ZnSe lenses or GaAs.<\/p>\n<\/div>\n

You could check pretty easily.\u00a0 I think the Sony Starvis might work but would need to use statistical methods and high gain to clean up and analyse the images.<\/div>\n
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It might be worth checking.\u00a0 I am using a ZWO ASI715MC which is 3864×2192. It can run at 640×480 @156 fps, 284 fps for 320×240 and 450 fps for 128×128. The higher frame rates for regions of interest give more data for security and monitoring applications.\u00a0 I treat “astronomy” as a monitoring activity.<\/p>\n

Even it is takes a bit of software, there is a growing demand for high resolution night time and thermal sensors at higher and higher resolutions.\u00a0 The requirements of memory and processing are not as hard to meet now with faster processors, lower cost memory, lower energy usage.<\/p>\n

I wanted to try it, but cannot afford a lot of different lenses.\u00a0 The M12, CS and C-mount seem to be the most popular.\u00a0 The ZnSe lenses work with thermal sensors, but they should also be somewhat useful with regular CMOS, particularly low light sensors for deep sky astronomy and security.\u00a0 And with statistical techniques, at very high gain in sensors like the IMX Starvis it should work where the intention is detection, identification, and event tracking.<\/p>\n

Filed as (Using ZnSe and GaAS lenses with Sony Starvis and similar detector at high gain and frame rates for machine vision applications)<\/p>\n

Richard Collins, The Internet Foundation<\/p>\n

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Wien Displacement Law<\/p>\n

Use the OmniCalculator at https:\/\/www.omnicalculator.com\/physics\/wiens-law<\/p>\n

288 Kelvin –> 10.062 micron
\n300 Kelvin –>\u00a0 9.66 micron
\n273.15 Kelvin –> 10.609 micron<\/p>\n

10 microns –> 61.93 Fahrenheit
\n12 micron –> -25.004 Fahrenheit
\n14 micron –> -87.1 Fahrenheit<\/p>\n

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Prasanna,<\/p>\n

I am finishing up 26 years of work for the Internet Foundation.\u00a0 That included many technical and industry studies.<\/p>\n

I would like to see if ZnSe and GaAs (zinc selinide and gallium arsenide) lenses will work with Sony Starvis sensors at high gain and high frame rates.\u00a0 The purpose is often not radiometry, but detection, classification and record keeping of events.\u00a0 Any place you see people using false color presentations, there are opportunities to use advanced machine vision and statistical methods.<\/p>\n

I wrote some notes and posted them at<\/p>\n<\/div>\n

<\/div>\n
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theinternetfoundation.net\/?p=16015 – Using ZnSe and GaAS lenses with Sony Starvis and similar detectors at high gain and frame rates for machine vision applications<\/em><\/p>\n

Richard Collins<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

To: Fuzhou Hundreds Optics Inc 100Optics.com, Some very low light and NIR sensors might be able to pick up LWIR, out to thermal wavelengths 5-15 microns — if they used ZnSe lenses or GaAs. You could check pretty easily.\u00a0 I think the Sony Starvis might work but would need to use statistical methods and high
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