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Topic: Safety of laser projectors
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Joined: Jan 27, 2023
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We are proposing to place a ceiling-mounted UST laser projector set adjacent to the rear wall of a church foyer to provide welcome messages etc as people enter the building. The foyer will have a large sofa/settee immediately below against the same wall. Children playing/sitting on the sofa will be tempted to look up into the beam. Does anybody know if this will be more dangerous than it would be for a normal projector? ie is a laser-generated beam any more dangerous than a normal beam? Do you know of any evidence either way?
Thanks for your help
Simon
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Depends on what you're buying and I would look into the manual and maybe reach out to the manufacturer. Some of the laser projectors are using RGB lasers to get the image, but many use a laser/phosphor system. That is, the laser strikes a phosphor coated color wheel and the color wheel is what creates the actual illumination for the light source. The light is no longer laser light at all and is generally eye-safe. It's bright though, which is still an issue, but not so much. Kind of like how looking into the sun isn't a pleasant experience.

Not sure this is a major overall concern, but if worried, I would be looking more at laser/phosphor hybrid models and might reach out to a manufacturer like Epson and Panasonic to see if they had models which were specifically eye-safe.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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Quote (AV_Integrated on Feb 4, 2023 4:40 PM):
Depends on what you're buying and I would look into the manual and maybe reach out to the manufacturer. Some of the laser projectors are using RGB lasers to get the image, but many use a laser/phosphor system. That is, the laser strikes a phosphor coated color wheel and the color wheel is what creates the actual illumination for the light source. The light is no longer laser light at all and is generally eye-safe. It's bright though, which is still an issue, but not so much. Kind of like how looking into the sun isn't a pleasant experience.

Not sure this is a major overall concern, but if worried, I would be looking more at laser/phosphor hybrid models and might reach out to a manufacturer like Epson and Panasonic to see if they had models which were specifically eye-safe.

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Quote (SimonF on Feb 6, 2023 11:31 AM):

Thank you for your help
Simon