title: Reflection optical encoders as three-grating moiré systems.
abstract: Reflection optical encoders are studied as three-grating moiré systems. An analysis is made of the differences that may appear between it and the standard case in which an optical encoder is regarded as a two-grating system.
authors: Departamento de Optica, Universidad Complutense de Madrid, Avenida Complutense syn, 28040 Madrid, Spain.
authors: D
authors: D
authors: Crespo
authors: J
authors: J
authors: Alonso
authors: E
authors: E
authors: Bernabeu