The most common question that people ask after they are introduced to the world of projectors is “can projectors hurt your eyes?” In order to answer this question, we need to distinguish two different projector aspects.
First, there are the bulbs that emit light onto a projector screen or surface. These bulbs have a very limited amount of UV rays in their spectrum and should not cause any damage on their own.
Second, there are the lenses used in some projectors which can potentially cause harm if improperly used. This second category is where the danger comes from when using a projector as it emits UV rays into your eyes which can be damaging over time.
The first aspect, the bulbs, are only harmful if exposed internally such as the surface of your skin. They present no danger to the eyes and will not burn your eyes through prolonged exposure.
The second aspect, however, does present a real concern.
Why? Because it is a very real possibility for damage based on how you use a projector. So how do you use it? There are several ways that can potentially cause damage to your eyes:
Overusing a projector
This is extremely common among projector users especially if they have never used projectors before. As many devices that have operation methods other than “on” or “off” usually require some sort of positioning method; thus projectors are no exception.
Projectors emit light through a lens and over time, wear and tear on the lens can cause its light output to diminish. This usually occurs after approximately 1000 hours of operation.
In combination with the fact that many people use their projector outdoors by projecting from a sunny balcony onto a wooden enclosure, this is often the result.
The problem with using projectors in this manner is that you are essentially losing the quality you would otherwise experience if your projector was in a studio or controlled lighting environment as well as creating unnecessary strain on your eyes.
Even when projector lights are turned off, they are still in standby mode and emitting light; this is why if you try to sleep with a projector in standby mode, there will be a noticeable yellowish glow coming from the actual lens.
After regular use of your projector, it is recommended that you take a one to two-hour break so that the projector can cool down. This way, there is no unnecessary damage being done to your eyes or the lens over time.
If this doesn’t appeal to you, there are other alternatives that do not require giving up using projectors but sacrificing some quality in order to save your eyes.
Can Lights Emit by a Projector Damage or Harm Your Eyes?
It is common for projector owners to be concerned about the light emitted by their devices. So, does it damage or harm your eyes? Is there a risk of getting eye cancer?
The short answer: no. Projectors emit a low-intensity white light, which even if focused on your retina would not have enough energy to cause any damage. There is not a single report in the medical literature about eye cancer resulting from projector use.
We couldn’t find any evidence that focusing on a projection for hours at a time can lead to eye cancer, as the energy projected onto the glass screen and then onto your retina is much lower than what would typically cause anything like that to happen.
Even though the light isn’t very intense, we are still concerned about the possible damage that it can cause to your eyes.
How to Keep Your Eyes Safe while You are Using Projectors
If you work in a public environment, where there is the constant use of a projector, it may be hard for you to avoid eye strain. That’s because the light from the projector can be very distracting. It will also emit heat, which will make your eyes feel even worse.
If that’s the case, it’s important to try these tips to help you get rid of your eye strain problem.
- It is crucial that you have a great posture when you are in front of an active projector. Your eyes should also be positioned directly at the center of the lens. If you don’t do this, then your eyes will feel strained very soon.
- You should start by moving your chair as close to the screen as possible. This will minimize any unnecessary movement and also help reduce any glare from active projectors from affecting your eyesight. In addition, you should also take control of the brightness of the room and keep it as low as possible.
- If your workstation doesn’t have adjustable height, then you should look for another one. Remember that the projector is designed to be small and portable, so placing it on an adjustable stand could reduce your productivity.
- If you have to use a laptop when using an active projector, then you should consider investing in a separate monitor. This will help with eye strain. In addition, having the correct dimensions of the screen will also help minimize any glare from the projector that might affect your eyesight.
Remember, the use of a projector can be an important part of your business. Always make sure that you are investing in the correct devices and accessories that will keep your eyes healthy. This will also help to improve all aspects of your workflow and reduce the cost of the business processes.