Flat lenses from Edmund Optics.

I've read about these somewhere else.

Polarization Directed Flat Lenses

Polarization Directed Flat Lenses function differently than typical spherical lenses. The focal length is defined by a holographically recorded wavefront profile, rather than by the curvature of the surfaces. Thus, the Polarization Directed Flat Lenses have less weight and volume than comparable spherical lenses, making them ideal for space-constrained applications. The Polarization Directed Flat Lenses are the result of exciting new design technology, allowing for endless possibilities across various industry fields and application types.

Optics - Imaging - Photonics - Optomechanics - Lasers | Edmund Optics

Flat lenses, you mean a window?

I have a lot of holographic experience and have seen holograms of lenses that act just like any other lens. But, for use with lasers, I doubt these kinds of lenses would work as the hologram is on a photographic plate and couldn't take the amount of light being transmitted through it.

Interesting, thank you for posting Steve.

Alaskan said:

Interesting, thank you for posting Steve.

Click to expand...

I wonder if these news lens types have application in laser optical systems? I've web searched, but have I don't think come across anything specific.