In order to satisfy demands for higher resolution optical encoders, Grayhill offers three higher resolution encoders suitable for human interface applications. These products are used where fine adjustment, greater accuracy and a smooth, continuous rotational feel is required. The original 61H and 61J products can be produced with resolutions up to 128 cycles per revolution. You should note that this is equivalent to 512 pulses per revolution. The products we have previously covered in this presentation are available with a maximum of 32 pulses per revolution.