Dispersive prism arrangement

Details Dispersive prism arrangement Dispersive prism arrangement

1984-08-08

1986-03-04

Arnold, Bruce Y.

350168, 350287, G02B 504

Patent

active

045737657

ABSTRACT:
A dispersive prism arrangement comprises a pair of identical triangular prisms each of which is mounted on a platform. The two platforms are rotatably mounted on a common shaft which slides in a groove and each platform is also mounted on a respective shaft which slides in a respective groove. These two further shafts are biased outwardly by springs. The two prisms are symmetrically disposed about the common shaft. Equal but opposite rotation may be imparted to the two prisms by rotating a knob which drives the common shaft.
A multiwavelength input beam incident on the first face of the first prism is refracted at this face, reflected at the second and third faces, emerges after refraction at the second face, and makes a symmetrical passage through the second prism. The prisms may be rotated so that each component of the beam emerges from the second prism without offset or deviation relate to the input beam.

REFERENCES:
patent: 2821111 (1958-01-01), Coleman
patent: 3871750 (1975-03-01), Mecklenbors
patent: 4294546 (1981-10-01), Killman et al.

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