A system to produce orthogonal beams includes a laser diode operating in
conjunction with a collimating lens, an aperture, and a simple compact
optic. Three collimated beams are directed toward an optic comprised of
components that are bonded together. Beams are reflected from two optical
components at right angles to produce plumb beams. Additionally, a beam
is reflected from the optic at a right angle, as well as transmitted
through the optic, to produce square and level beams. All four beams are
orthogonal to each other, have relatively equal power, and are aligned
and oriented so as to appear to be originating from a coincident point.
Optionally, a fifth orthogonal beam may be produced. An optic in the
shape of a cuboid comprised of six small components is also disclosed.