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Title: what difference are between red laser and infra red light? Post by: oemBiology on Jun 21, 2020 Referring to following link, I would like to know on what wavelength is for Red Laser 650 as comparing with infra red light, since both could be 650 nm, so what difference are between red laser and infra red light.
(https://biology-forums.com/gallery/41/94679_21_06_20_9_01_57.png) (https://biology-forums.com/index.php?action=gallery;sa=view&id=41791) Does anyone have any suggestions? Thanks in advance https://www.youtube.com/watch?v=_JOchLyNO_w Title: Re: what difference are between red laser and infra red light? Post by: duddy on Aug 4, 2020 A red laser's wavelength is typically 630-680 nm and its power is 5 mW and below.
Infrared radiation extends from the nominal red edge of the visible spectrum at 700 nanometers. That small difference of 20 nm prevents us from seeing it Title: Re: what difference are between red laser and infra red light? Post by: oemBiology on Aug 5, 2020 I would like to know on following issues as shown below:
1) which one (Infrared radiation vs red laser) can generate heat? 2) how to make red laser not generate heat at all? Do you have any suggestions? Thank you very much for any suggestions (^v^) Title: Re: what difference are between red laser and infra red light? Post by: duddy on Aug 9, 2020 A laser beam has energy, and if it's absorbed by something, the energy becomes heat. A 1 mW beam as in a typical laser pointer delivers 1 mW of heat, which is pretty small, but not nothing. A 100 W beam as in an industrial cutting laser for thin materials delivers 100 W which is easily enough to set things on fire.
Are you asking about lasers that burn material? Those operate at shorter wavelengths, like 445nm. They're class 4 lasers, and operate at 10000 mW. Title: Re: what difference are between red laser and infra red light? Post by: oemBiology on Aug 9, 2020 Some products promotes to increase blood flow using red laser beam without generating heat, like infrared light, Since both are belong to red wavelength, if red laser does not generate heat, then the energy must be very low, correct?
I would like to know on why red laser beam can improve blood flow. Do you have any suggestions? Thank you very much for any suggestions (^v^) Title: Re: what difference are between red laser and infra red light? Post by: duddy on Aug 9, 2020 Since both are belong to red wavelength, if red laser does not generate heat, then the energy must be very low, correct? correct i'm not entirely sure if it actually does, my knowledge on the topic stops there unfortunately Title: Re: what difference are between red laser and infra red light? Post by: oemBiology on Aug 10, 2020 Thank you very much for suggestions (^v^)
Title: Re: what difference are between red laser and infra red light? Post by: duddy on Aug 10, 2020 if you figure it out, update this thread, i'd be interested to know
Title: Re: what difference are between red laser and infra red light? Post by: oemBiology on Aug 10, 2020 The salesperson mentions that blood cells usually clog together, which reduce surface area to exchange between oxygen and CO2. Under red laser for a short period of time, the clog of blood cells would separate and increase surface area of air exchange, but I get no idea on why red laser could cause clog of blood cells becoming smaller by separating them.
Do you have any clues? Thank you very much for any suggestions (^v^) |