Optical apparatus
US4470105A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Dec 27, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A kinematic lamp mount for mounting a spectral source lamp (3) such as a hollow cathode lamp accurately with respect to an optical axis of, for example an atomic absorption spectrophotometer comprises a base member (100), a lamp holder (1) and two spring means (120, 121) which urge the holder (1) into contact with the base member (100). The holder (1) is provided with three ball ended feet (6,8,10) two of which (6,8) are adjustable. Two feet (6 and 10) engage in an arcuate V-groove (102) while the third engages in a radial V-groove (103) giving kinematic connection between the holder (1) and base member (100). By providing kinematic connection between the holder (1) and base member (100) the lamp holder (1) and hence the lamp (3) may be removed from and later replaced sufficiently accurately on the base member (100) that no re-adjustment is necessary. A collection of lamps and adjusted holders may be kept and used consecutively without requiring intermediate adjustment once all the collection have been initially adjusted thus speeding multi-element analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.