Enhancement of accuracy in OTF measurement.
Appl Opt
; 26(20): 4423-4, 1987 Oct 15.
Article
em En
| MEDLINE
| ID: mdl-20523377
ABSTRACT
A knife-edge scanning method was developed to enhance the accuracy in OTF measurement. A slit image formed by the lens under test was scanned by a knife-edge which was moved by a stepping motor. It was possible to increase the signal-to-noise ratio with averaging 4-32 data at each point through a scan. The standard deviation was decreased to under 0.25% in the MTF unit.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
1987
Tipo de documento:
Article