Flashlights Red Light
Sunday, January 31st, 2010|
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Mini 9 LED Flashlight Torch Bright Lamp Light 3 AAA Red $0.99 |
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UltraFire WF-501B 1Mode CREE LED Red Light and Green Lihgt Bulb Flashlight Torch $23.55 |
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CREE Red Light LED Bulb For Ultrafire 501B Flashlight $9.99 |
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UltraFire WF-501B 1Mode CREE LED Red Light and Green Lihgt Bulb Flashlight Torch $19.88 |
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UltraFire WF-501B 1Mode CREE LED Red Light and Green Lihgt Bulb Flashlight Torch $23.55 |
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UltraFire G60 Torch CREE LED Flashlight Red Light Rechargeable Battery Charger $33.88 |
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New Rechargeable USB Mini LED Torch Lamp Light Pocket Flashlight Red + Keychain $2.28 |
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CREE Red Light LED Bulb For Ultrafire 501B Flashlight $9.99 |
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CREE 150LM LED Red Light Bulb For 501A/B/C/D Flashlight $9.99 |
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Mini 9 LED Flashlight Torch Bright Lamp Light 3 AAA Red $0.99 |
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10 9 LED Torch Flashlight Camping Light Lamp red $19.99 |
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10 x 9 LED Torch Flashlight Camping Light Lamp red $19.99 |
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10 9 LED Torch Flashlight Camping Light Lamp red $19.99 |
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UltraFire G60 Torch CREE LED Flashlight Red Light 6P $19.89 |
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UltraFire CREE Red Light LED Flashlight Torch G60 6P $19.99 |
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CREE LED 150LM Flashlight 16340 501A Torch Red Light $23.99 |
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UltraFire 16340 WF-501A CREE LED Red Light Flashlight $23.55 |
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UltraFire 501B 1Mod CREE LED Red Light and Green Lihgt Bulb Flashlight Torch Set $38.99 |
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UltraFire CREE LED Red Light and Green Lihgt Bulb Flashlight Torch 18700 Charger $57.55 |
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2pcs CREE Red Light LED Bulb For Ultrafire 501B Flashlight $16.99 |
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UltraFire 501B G60 Torch CREE LED Flashlight Torch Red Light 6P Mount Switch Set $22.65 |
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XTAR B01 CREE R4 LED Flashlight 320 Lumens Tactical Torch DIY Red Filter Light $30.15 |
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UltraFire 1 x 16340 3.7V WF-501A CREE LED 150Lumens Red Light Flashlight $15.25 |
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UltraFire 501B G60 Torch CREE LED Flashlight Torch Red Light 6P Mount Switch Set $22.65 |
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UltraFire WF-501B CREE Red/Green/Blue/Purple Light Bulb LED Flashlight Torch Kit $39.80 |
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ZOOMABLE ZOOM FOCUS CREE LED HEAD Spot LAMP LIGHT TORCH Flashlight 5W 300Lm Red $8.99 |
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ZOOMABLE ZOOM FOCUS CREE LED HEAD Spot LAMP LIGHT TORCH Flashlight 5W 300Lm Red $8.99 |
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ZOOMABLE ZOOM FOCUS CREE LED HEAD Spot LAMP LIGHT TORCH Flashlight 5W 300Lm Red $9.90 |
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ZOOMABLE ZOOM FOCUS CREE LED HEAD Spot LAMP LIGHT TORCH Flashlight 5W 300Lm Red $9.11 |
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Maglite XL50 LED Light Red Compact Sleek Flashlight Compact Pocket Size Design $34.38 |
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Mini 9 LED Flashlight Torch Bright Lamp Light 3 AAA Red $0.99 |
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LIFE GEAR GLOW FLASHLIGHT Red Glow Flash light spotlight $28.99 |
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9 LED Mini Protable Pocket Torch Flashlight Light Lamp Red + 3 AAA Battery $0.34 |
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9 LED Mini Protable Pocket Torch Flashlight Light Lamp Red with 3 AAA Battery $1.27 |
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New Rechargeable USB Mini LED Torch Lamp Light Pocket Flashlight Red + Keychain $2.26 |
flashlights red light
Why is it a good idea to put a red lense on your flashlight if you want to avoid being detected at night?
I know red has the longest wavelength and the lowest frequency but I’m looking for a little more information than that.
Would a violet light be just as good? Why or why not?
ps. I’m not looking to rob a bank or anything like that. The question just came up because I have a white and a red light on my keychain and I’ve noticed the difference at night.
The retina of the eye has two basic kinds of light-sensitive cells: cone cells for detecting color and fine detail but which require a fair amount of light to work, and rod cells, which do not detect color but which are very light-sensitive. You owe most of your night vision capability to your rod cells, but these cells are blind to red light. The red light must therefore be fairly bright for the eye to see it.
Although this makes dim red lights less visible at a distance, avoiding detection is not the primary purpose of the red lens. This lens is there so you can turn on your flashlight for reading without temporarily messing up your night vision. You would therefore use a flashlight with a red lens to read your telescope settings and record them while making astronomical observations. Violet, which has a blue component to which rod cells are fairly sensitive, wouldn’t work for this purpose nearly as well.
Comparison of Red Dot Sights, Tactical Flashlights, and Lasers by HustlePaintball.com