LED as Light Detector
Light detector alarm electronic kit
Flexible supercapacitor raises bar for volumetric energy density
Nightlight LED with light detector Fimo owl by CreationsBoutChoux1 on Etsy https://www.etsy.com/listing/246421227/nightlight-led-with-light-detector-fimo
super kamiokande detector, kamioka observatory, japan: ~12′000 photomultiplier tubes (extremely sensitive light detectors), in an ‘ultra-purified water-filled’ tank, detect neutrinos, proton decay and cosmic rays.
GYROBO Self Balancing Robot Remote Gyro Controlled Light Detector Dance Soccer #Autonics
UV Black-Light Flashlight Pet Urine Detector. Ultra-Bright Led Cordless Stain Finder for Detecting Dry Dog Cat and Pet Urine/Pee. GranPaws® Stain Seeker PINK Color. A Unique Gift Giving Idea. >>> Be sure to check out this awesome product.
Outdoor Camp Lighting
Picture of light detector, no microprocessors, just simple electronics :)
12 LED UV ultra violet Black Light Flashlights torch light, urine/stain detector,Black * Continue to the product at the image link.
Researchers build an array of light detectors on a photonic chip able to record single photons