About the Lens...

The surface of each glass sheet must be perfectly flat to obtain maximum resolution.

Typically, we use optic glass flats with one-wave accuracy @ 650 nm for the 50 mm diameter

lens. White light through this type of lens renders an image with an orange hue in the

presence of a magnetic field. These lenses are well suited for projection utilizing a red laser.

Since the beam covers such a small area, the glass doesn't need to be perfectly flat across

the entire surface.

Half-wave glass allow the sheets to be closer together and the resulting image resonates

up into the yellow spectrum. White LED and incandescent light sources allow

direct viewing with good contrast and brightness.

However, the best images are obtained with quarter-wave glass. The glass sheets are so close

together, the mixture appears almost transparent. White light resonates in the blue spectrum.

Detailed and clear direct viewing is obtained with these very high quality flats.

There are higher quality optic glass sheets available, but the resulting image is shifted up

and out of our range of vision.