One of the answers to this question will depend on the way the projectors used by users. When the projector is used as intended, then there will not be problems with the light affecting the eyes. The answer is no as when the projector uses the right screen that is suitable for the projector and watching on the screen, is much safe. This is because the light projected on the screen is visible light.
When looking at the projector lens directly, you are exposed to a lot of light that exists on a small area and enough to affect your vision leading to discomfort. The laser lights on the projectors today is not as dangerous as the xenon produced light at the lens and has to produce light output at the upper end of the output range.
It is advisable not to open the projector since the xenon lamp produces a considerable amount of ultraviolet rays and IR. When you open the side panels of a projector operating, you can see the light before it is filtered. What makes it dangerous is the UV light that may cause burns in the eye when looking without a protective mask.
One of the primary questions you should ask yourself is how much time do you spend on your digital projector? With this, you will know how to avoid discomfort. Most of the people spend more time staring at the digital screen all through the week at work. The lights produced by the projector are made up of electromagnetic particles than travels in waves that emit energy.
The energy is higher when the wavelength is short. Each wavelength represents different waves like the x rays, gamma ray, ultraviolet rays, visible light, radio waves and also the infrared light. Since the human eyes are very sensitive to visible light, they are profoundly affected when exposed especially to the blue color of the visible light as it produces a high amount of energy. It is clear that too much exposure to the blue light may cause long term damage to the eyes.
What makes us be concern about the exposure to blue light is the facts that it flickers and reduce the visual contrast that in the long run affect the sharpness and clarity.
What may be the reason for headaches and eyestrains is the flickering and glaring also making you be physically and mentally fatigued. What makes too much using of the screen and projectors to be a bit dangerous is the computer vision syndrome. The Computer Vision Syndromes is caused by the too much exposure and damages the eyesight leading to vision problems. Here are some of the symptoms of Computer Vision Syndrome including vision blurred, tired eyes, dry eyes and also neck pain.