Light-resistance tester for maintaining uniform temperature at surface of sample
US4627287A · kind A · utility
Inventor
Key dates
| Filing date | Jun 20, 1985 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Jun 20, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N17/004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A light resistance tester for maintaining a uniform temperature of the surface of a sample being tested has a testing chamber, a light source mounted in the center of the testing chamber, an annular sample mounting frame positioned around the light source and rotatable around the light source as the center of rotation, and an air circulation blower mounted in the lower portion of the testing chamber below the sample mounting frame and circulating air upwardly in the testing chamber toward the sample mounting frame. An air flow divider is positioned between the sample mounting frame and the light source for dividing the upward flow of air from the air circulation blower into a portion flowing in an upward path within the sample mounting frame and spaced inwardly from samples mounted on the frame and around the light source, and a portion flowing along an upward path along the outside of the sample mounting frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.