3.1.4. Infrared Laser

So we'll start with the first primary safety warning, and this is with respect to the infrared laser and eye safety. In the center, when you look at this picture, number one, in the center of each Delta terminal, there is a laser diode. And that laser diode is emitting near infrared light, which means it's outside of the visual spectrum. When the Delta is on, you cannot see it. That doesn't mean it's not operating, nor should you even try to see it. Now, if you're a really curious type, it is possible to use an all-digital camera and look through the viewing screen on the back of the camera while shining the lens at the delta, the laser diode in the center. With the all-digital cameras for some reason, because it's a very low pixelation or not very many pixels, you will see a small white bluish dot in the way the laser refracts off the camera lens. Now, when comes to the new iPhones and all of these smartphones with really good cameras, you won't see the laser in the center. Doesn't mean it's not operating, you just can't see it