Abstract
Off axis aspheric surfaces, such as individual segments for a telescope mirror, and surfaces that do not have any optical axis are traditionally difficult to test. In addition to difficulties controlling the aspheric shape, mirror segments have tight on radius of curvature and optical axis position. This paper presents a new method of measuring these surfaces that uses a test plate with a spherical reference surface, in combination with a small computer generated hologram to compensate the aspheric departure. The example for measuring 1.8-m segments of a 10-m primary mirror is given.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Publisher | Society of Photo-Optical Instrumentation Engineers |
| Pages | 348-357 |
| Number of pages | 10 |
| Volume | 3782 |
| State | Published - 1999 |
| Event | Proceedings of the 1999 'Optical Manufacturing and Testing III' - Denver, CO, USA Duration: Jul 20 1999 → Jul 23 1999 |
Other
| Other | Proceedings of the 1999 'Optical Manufacturing and Testing III' |
|---|---|
| City | Denver, CO, USA |
| Period | 7/20/99 → 7/23/99 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Efficient testing of off-axis aspheres with test plates and computer-generated holograms. / Burge, James H.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3782 Society of Photo-Optical Instrumentation Engineers, 1999. p. 348-357.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Efficient testing of off-axis aspheres with test plates and computer-generated holograms
AU - Burge, James H
PY - 1999
Y1 - 1999
N2 - Off axis aspheric surfaces, such as individual segments for a telescope mirror, and surfaces that do not have any optical axis are traditionally difficult to test. In addition to difficulties controlling the aspheric shape, mirror segments have tight on radius of curvature and optical axis position. This paper presents a new method of measuring these surfaces that uses a test plate with a spherical reference surface, in combination with a small computer generated hologram to compensate the aspheric departure. The example for measuring 1.8-m segments of a 10-m primary mirror is given.
AB - Off axis aspheric surfaces, such as individual segments for a telescope mirror, and surfaces that do not have any optical axis are traditionally difficult to test. In addition to difficulties controlling the aspheric shape, mirror segments have tight on radius of curvature and optical axis position. This paper presents a new method of measuring these surfaces that uses a test plate with a spherical reference surface, in combination with a small computer generated hologram to compensate the aspheric departure. The example for measuring 1.8-m segments of a 10-m primary mirror is given.
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UR - http://www.scopus.com/inward/citedby.url?scp=0033342730&partnerID=8YFLogxK
M3 - Conference contribution
VL - 3782
SP - 348
EP - 357
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Society of Photo-Optical Instrumentation Engineers
ER -