Abstract
The Video Scanning Hartmann Optical Tester (VSHOT) is a slope-measuring tool for large, imprecise reflectors. To study the accuracy of the VSHOT as well as it sensitivity to changes in test setup variables, a series of experiments were performed with a very precise, astronomical-grade mirror. The slope errors of the reference mirror were much smaller than the mirror. The VSHOT exceeded itsaccuracy goals by achieving less than 0.8% error in the determination of focal length and approximately 0.1 mrad error in the determination of RMS slope error with minor restrictions on the test setup. Displacement of the test mirror from the optical axis caused the largest source of measured errors.
| Original language | American English |
|---|---|
| Pages | 1877-1882 |
| Number of pages | 6 |
| State | Published - 1997 |
| Event | IECEC-97: Thirty-Second Intersociety Energy Conversion Engineering Conference - Honolulu, Hawaii Duration: 27 Jul 1997 → 1 Aug 1997 |
Conference
| Conference | IECEC-97: Thirty-Second Intersociety Energy Conversion Engineering Conference |
|---|---|
| City | Honolulu, Hawaii |
| Period | 27/07/97 → 1/08/97 |
NREL Publication Number
- NREL/CP-550-24411