[AlinB]

În prealabil postat de mihailt

Mi se pare aberatie scanarea irisului.
Nu ca s-ar putea controla sufletul prin aceasta dar laserul are efecte distructive asupra retinei si ochiului!
http://en.wikipedia.org/wiki/Laser_safety
"
Laser radiation predominantly causes injury via thermal effects. Even moderately powered lasers can cause injury to the eye. High power lasers can also burn the skin. Some lasers are so powerful that even the diffuse reflection from a surface can be hazardous to the eye.



The coherence, the low divergence angle of laser light and the focusing mechanism of the eye means that laser light can be concentrated into an extremely small spot on the retina. A transient increase of only 10 °C can destroy retinal photoreceptors. If the laser is sufficiently powerful, permanent damage can occur within a fraction of a second, faster than the blink of an eye. Sufficiently powerful visible to near infrared laser radiation (400-1400 nm) will penetrate the eyeball and may cause heating of the retina, whereas exposure to laser radiation with wavelengths less than 400 nm and greater than 1400 nm are largely absorbed by the cornea and lens, leading to the development of cataracts or burn injuries.[1]"


Cine stie ce alte efecte negative are scanarea cu laser a ochilor!
Nu acceptati sa va fie scanati ochii cu laser,asa ceva e o metoda barbara!

Esti sigur?

"How Does Iris Scanning Work?
The eye is illuminated by light-emitting diodes that surround the camera. The diodes emit in the visible light spectrum. The scanner is NOT a laser-retinal scanner so there are no laser eye hazards. Iris identification uses standard video cameras — the same kind you would use to videotape your family — to take a picture of the iris of your eye. It does not use lasers and, therefore, has none of the inherent risks associated with lasers."

http://www.bnl.gov/userscenter/UU/pdf/Iris.pdf

Sa nu uitam cum au fost introduse televizoarele si monitoarele cu tub catodic fara vreun studiu asupra efectelor de le produceau la ochii omului.
Si sunt destui care acum au probleme cu ochii datorita respectivelor.

Conform carui studiu stiintific?
Care sunt factorii de risc mai exact?

Intre timp s-au modernizat televizoarele si monitoarele si nu mai produc probleme la ochi,cel putin asa e cu cele LCD.

Esti sigur?