i have an doubt on light any light which light invisible thier focus but it can be visible if u see through cell ?
suppose consider some leds are arranged to show u r name when it light falls on screen
& my question is this name we can't see directly through our eyes but it can see through cameras any video recorders
so my question is which type of leds satisfy this
any one know or u have an idea / view abt this pls mail naveenkumar.t0428@gmail.com
& my question is this name we can't see directly through our eyes but it can see through cameras any video recorders
so my question is which type of leds satisfy this
any one know or u have an idea / view abt this pls mail naveenkumar.t0428@gmail.com
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Answer it!
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Most digital cameras will pick up IR LEDs from e.g. remote-control devices. (That is my experience)
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I think you're talking about infrared (IR) leds. Light that is visible through specially designed electronic devices such as night vision goggles or camera with a NightShot feature, but not to the unaided human eye, right?
Feb 9, 2010. 5:45 PMTitanTechRobotics
says:
I don't quite understand what you are asking, but if you want to see the light that the leds produce through a camera, but not with the human eye, then IR(infrared) leds would be what you need. But not all digital cameras will
"see" the light, because they have an IR filter. Most cell phone cameras don't have IR filters though. So, if you make the display with IR leds you should be able to see it with a cell phone's camera, but not with your eyes.
AI
"see" the light, because they have an IR filter. Most cell phone cameras don't have IR filters though. So, if you make the display with IR leds you should be able to see it with a cell phone's camera, but not with your eyes.
AI
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