I want to convert a laserplane to a tail light.

[Robert]

This product is legal to the eyes of all construction trades. Its not taking the laser device out & re-purposing, its used in the same housing (upper). See the next photo showing the 4 sided glass component. Is this glass also a spectra filter involving human eye safety?

[Robert]

This glass part is 4 pcs. about 105mm square x 27 high, about 6mm thick. Is this just for dirt or does it filter wavelength?

[mixedgas]

This glass part is 4 pcs. about 105mm square x 27 high, about 6mm thick. Is this just for dirt or does it filter wavelength?

I know my way around class IIIA lasers. Take this out on a street with metal halide lights and sodium lights and see how visible it is. Even if its a 3R with a fatter beam and more power allowed, I'd be shocked if it served your purpose. More so aim a set of Xenon car headlights at a wall your scanning with it. Basically game over at that point.

Drivers are NOT trained to know what to do with your line. They KNOW what to do with a flashing light. Psychology matters here. The minimum common denominator driver is what worries me. Think how a teenage girl driving mom's minivan is going to react to a laser beacon. She has NO idea what it is. (Well, unless Mom or Dad works with optics, she has not a clue.)

We've had about four threads on PL and several on LPF on laser bikelights. They always lose out to LEDs and Xenon sources.

If laser worked and was safe, my bike would be crawling with them. Its not.

Been there, done that, got the TEE shirt. And I've stripped more then one survey laser, too.

Steve

[Laser Wizardry]

" 15 characters"

[Robert]

OK the details have sunk in. Thanks everyone for your patience. Its LED then.

Are these parts of any use to anyone?

I need to learn led circuits to rebuild a crashed 50 led rear light, got some headlight types too. Can anyone recommend a site? A used led vendor was mentioned too.

[White-Light]

This product is legal to the eyes of all construction trades. Its not taking the laser device out & re-purposing, its used in the same housing (upper). See the next photo showing the 4 sided glass component. Is this glass also a spectra filter involving human eye safety?

What's legal on a closed building site is very different to what's legal in public.

You are taking something out of a private enclosed space into a public area and using it for a purpose it isn't intended for.

Do you think it would be legal for example to take a lamp and lenses assembly out of a lighthouse and put it on the back of a truck as a warning light?

Same principle if slightly more extreme.

There are Road Traffic Regulations to contend with.

As the beam maybe un-terminated if it shines between buildings or the scooter is driven in open space, there are Civil Aviation Rules.

If could in anyway be construed as a display piece, there are licensing and public display rules.

There maybe specific provisions relating to laser pointers in public which you also fall foul of if you take this type of laser into public.

These lasers only project a very dim red line. They're invisible in the air under normal atmospheric conditions and pretty much invisible if you're not on the same viewing plane as the laser. I know I have one - a Straight-Line laser line generator.

Here's a pic from my phone of the line from 6 feet - very dim and in the air without smoke, invisible. It's a Class 3R just the same for reference:

..and it's in an almost dark room:






If I add in torch light, here's a zoom of the result - spot the laser line (just visible where it exist the torch beam at each side):