Low-cost, phase-shifting mechanisms for Newton-type interferometers.
Appl Opt
; 52(9): 1913-8, 2013 Mar 20.
Article
in En
| MEDLINE
| ID: mdl-23518736
ABSTRACT
Using standard optical shop equipment, it is possible to implement simple, low-cost, phase-shifting Newton interferometers sufficiently accurate for surface evaluation. The simplification of the phase-shifting mechanism is compensated with image-processing algorithms that can deal with vibrations and uneven, nonsequential steps. The results are cross-compared with a Fizeau phase-shifting interferometer to verify the effectiveness of the method.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Health_economic_evaluation
Language:
En
Journal:
Appl Opt
Year:
2013
Document type:
Article
Affiliation country:
Mexico