This is a 1x3/4 inch dichroic reflector mirror beam splitter or combiner. It is designed for 473nm and is very angle sensitive, in fact it can be used as a line selector to selectively remove the blue lines in a multi-line argon laser. One good use would be to combine laser beams for light show use.
Make me an offer I have 2 of these units Caldwell U.S.A. Lifting Beam Roll Spool Lifter Shaft Adjustable Pivoting Hooks Made in the U.S.A. Caldwell model 231A-1-19 — Capacity 2000 lbs The beam is in good condition, I have two of these Lifting beams model 231A-1-19 should you need two units.
This offer is for a very good condition, used top quality master precision square made by Starrett (one of the finest precision tool makers in the world). The blade size is 6"(150mm), and the beam size is 4 5/16"(110mm). Recommended for use where extreme accuracy is required.
Thank You For Looking At Our Products Product Information:Pair of Machinist I Beam Parallels Product Features & Specifications: Parallels Measure 7" W x 1" H x 3/4" D5/8" Drilled H
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