Variable slit width device for spectroscope
US6765707B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Apr 15, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A variable slit width device for a spectroscope which can be used in a narrow space, be widely variable, and be set in slit width with high accuracy. The variable slit width device includes a pair of freely rotatable rotary parts for pressing inclined guide parts of a pair of slit holders, pressing parts for supporting the pair of rotary parts, and linear guides having guide parts formed at the lower surfaces thereof and extending horizontally in a direction crossing with guide rails at right angles. The pressing parts are fixed to the linear guides, the guide rails are fitted to the guide parts of the linear guides, feed nuts are fixed to the pressing parts, feed screws are engaged with the feed nuts. Bearings are provided for rotatably supporting the feed screws, preload springs for preloading the feed nuts and the feed screws, a slit driving part for rotatably driving the feed screws, and a housing part for fixing thereto the guide rails, the bearings and the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.