Optimizing design of high-resolution optical encoder using a point-source light-emitting diode with slits

Optical Engineering

Volumn 44, Issue 1, 2005, Pages 1-7

  Matsuzoe, Yuji ^a   Koizumi, Kazuhiro ^a   Saitoh, Tetsuya ^a   Yoshizawa, Toru ^b  

^a FUJI ELECTRIC CO   (Japan)

^b TOKYO UNIVERSITY OF AGRICULTURE AND TECHNOLOGY   (Japan)

Author keywords

Accuracy; Interference fringe; Optical encoder; Resolution

Indexed keywords

COHERENT LIGHT; DIFFRACTION GRATINGS; LIGHT EMITTING DIODES; LIGHT INTERFERENCE; LIGHT SOURCES; MATHEMATICAL MODELS; MOIRE FRINGES; OPTICAL DESIGN; OPTICAL SYSTEMS; OPTIMIZATION;

FRESNEL-KIRCHOFF DIFFRACTION FORMULA; INTERFERENCE FRINGE; OPTICAL ENCODER;

OPTICAL SENSORS;

EID: 14544302211     PISSN: 00913286     EISSN: None     Source Type: Journal    
DOI: 10.1117/1.1829093     Document Type: Article

References (4)

1. S. J. Ovaska, "Improving the velocity sensing resolution of pulse encoders by FIR prediction," IEEE Trans. Instrum. Meas. 40 3), 657-658 (1991).
2. Y. Fujiwara, "The characteristic of the newest encoder and future expansion," ASME J. Mech., Transm., Autom. Des. 18(7), 18-22 (1986) (in Japanese).
3. J. G. Webster, The Measurement, Instrumentation, and Sensors Handbook CRC Press, Boca Raton, FL (1998).
4. B. Horwitz, "Diffractive techniques improve encoder performance," Laser Focus World (Oct. 1996).