Laser beamsplitter for generating a plurality of parallel beams

Details Laser beamsplitter for generating a plurality of parallel beams Laser beamsplitter for generating a plurality of parallel beams

G - Physics

02

B

G02B 27/10 (2006.01) G01B 9/02 (2006.01) G01J 3/45 (2006.01) G02B 27/14 (2006.01)

Patent

CA 2221170

A laser beamsplitter for generating a plurality of parallel beams (101, 102, 103) comprises a first beamsplitter (30) and a second beamsplitter (32). The first and second beamsplitters (30, 32) are manufactured from glass flats having precisely parallel faces, wherein the front surface (36) is coated with a reflective coating and the back surface (38) is coated with a beamsplitter coating such that an initial laser beam (99) passing through the first beamsplitter (30) at a preferred angle of incidence is split into a first beam (100) and a second beam (101). The second beamsplitter is positioned relative to the first beamsplitter such that the first beam (100) passes through the second beamsplitter and is split into a third beam (102) and a fourth beam (103).

Un séparateur de faisceau laser permettant de générer plusieurs faisceaux parallèles (101, 102, 103) comporte un premier séparateur de faisceau (30) et un second séparateur de faisceau (32). Les premier et second séparateurs de faisceau (30, 32) sont fabriqués à partir de glaces presse-film ayant des faces strictement parallèles et une surface frontale (36) recouverte d'un revêtement réfléchissant tel qu'un faisceau laser (99) incident traversant le premier séparateur (30) suivant un angle d'incidence préféré subit un dédoublement en un premier faisceau (100) et en un second faisceau (101). Le second séparateur de faisceau est placé par rapport au premier séparateur de faisceau de telle sorte que le premier faisceau (100) traverse ce second séparateur de faisceau et subit un dédoublement en un troisième faisceau (102) et en un quatrième faisceau (103).

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