Projecting a grid with a single laser

[Meduza]

Hello

Is there a way to project a grid like this with a single laser (<5mW):


I have a idea to make a focus light for my SLR Camera in dark conditions, and a laser grid would be perfect to focus on...

Any ideas? (simple, no galvos or such)

[Things]

See if you can get your hands on some line gratings, you may be able to arrange them to get a grid.

[Meduza]

I got to say that i am not that good at the theory of gratings, but even if i managed to split the beam into multiple horizontal lines i would still need another laser to make the vertical, right?

A single line is easy, just to buy a cheap line-laser, but i do not want a bunch of line lasers strapped to my camera (think 10 lasers on a camera...)

[QUAZAR]

You can buy cross grids ready made.

[Meduza]

Any sources for that, i have only found "star" type grids in my googling...?

[KGB]

Something like... http://cgi.ebay.com/Cross-lens-AixiZ...item53dd6727dd wouls give you a beam like...

Not exactaly what you were looking for but would still work.

-Brooks

[Meduza]

Those i already have a few of, but the thing was to create a grid with multiple lines in both horizontal and vertical direction.

I have seen a focus light like this on a digital camera from sony? i think and it was great to use in dark enviroments where the camera otherwise have a hard time focussing.

[Xytrell]

These sometimes have grid generators, but the selection is random.

Looks like this: