Sine bar mechanism and monochromator and spectrophotometer inclu

Details Sine bar mechanism and monochromator and spectrophotometer inclu Sine bar mechanism and monochromator and spectrophotometer inclu

1984-03-01

1986-09-23

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356334, G01J 318, G01J 306

Patent

active

046132333

ABSTRACT:
A sine bar mechanism comprises an arm of radius R pivoted about an axis which is also the axis of a diffraction grating. An elongated member is pivotally mounted at one end, and is pivotally connected to the arm at its other end. The coordinates of the point at the pivotal mounting at one end of the member and the length of the elongated member are chosen to optimize the characteristics of the mechanism. Embodiments in which the elongated member comprises a lead screw and the pivotal connection comprises a nut pivotally attached to the arm and engaging the lead screw are described and their use in various types of monochromators are portrayed.

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