http://www.usa.canon.com/cusa/semiconductor/products/encoder_optolectronic_components/laser_rotary_encoder/r_1so_r_1sl_r_1p32?pageKeyCode=writeReviewPage
R-1SO, R-1SL, R-1P32
Features
- Compact and lightweight.
- High resolution : 81,000 pulses/rev, equal to 16 arc second for each pulse (without interpolator).
- Open collector output.
- Maximum frequency response of 500kHz.