Lexicon DIY-Knowledge

Dual-beam prism


Prisma de doble rayo

Prisma à deux faisceaux

Accessory for construction lasers. In a dual-beam prism the laser beam is split in two. One half continues on straight ahead, and the other half is deflected at an angle of 90°. The dual-beam prism is used to project and verify right angles. (See also ?Pentaprism?)