Built-in CMOS Monitor Camera Enhances Usability
The continuous exposure measurement using HL-CCD enables high-speed sampling, which doubles the conventional speed and accuracy. Unlike the laser scanning method, there is no void in detection. This allows for wider applications that require more precision due to finer product designs, or faster line speed due to shorter manufacturing times.
The measurement uses the average value within the exposure time. Even an instantaneous change can be detected reliably.
A change that occurs between the laser scan paths cannot be detected.
The laser scanning data gathering method was thoroughly reviewed and resulted in a new design combining a Green LED and HL-CCD. This solved the problem of motor durability, which was the weakest point of the laser-scanning method. A long-life LED also provides greater reliability over a long period of time.