Sine bar mechanism and monochromator and spectrophotometer including such a sine bar mechanism
US4613233A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Mar 1, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.