Optical deterioration-accelerating weather and optical resistance testing apparatus
US4760748A · kind A · utility
23Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1986 |
| Grant date | Aug 2, 1988 |
| Priority date | — |
| Expiry date | Dec 30, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N17/004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical deterioration-accelerating weather and optical resistance testing device has a light source and a frame supporting a sample to be tested rotating around the light source. Thermal deterioration of the sample due to radiant heat generated by the light source is inhibited by the provision of a cold air guide enclosing a portion of the sample rotating frame on which the sample is supported. Cold air is introduced to the surfaces of the sample through the cold air guide to maintain the both sides of the sample at a constant test temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.