Quantum Composers AF910 - Manual (Page 4)

Page 4 AF910 Manual Version 1.4
CHAPTER 1 – Product Overview
Product Features
- Easy integration into any optical system that utilizes infinity corrected optics.
- High intensity laser diode @ 685nm to accommodate surfaces that may vary
in reflectivity.

The system has the ability to dynamically adjust the laser diode intensity
to maintain the optimal signal to noise ratio.
- Integrated motor control that includes step, direction and limit inputs.

This allows for reduced component count and cost as well as faster
motor response times to changes in sample position.
- High resolution sensor.

A high resolution sensor can better maintain accuracy and repeatability
of the focus target.
- High speed DSP based microcontroller.

Allows for different algorithms to be used and computed quickly so the
focus position can be determined very quickly.
- Serial communications with selectable baud rates.

Ability to change baud rates so that existing systems can communicate
with the module.
- Up to 7 different objective configurations.
- ±10V analog output focus level signal.
- Digital I/O for various system states and control.
- Dual focal plane support with AF911 version.

When using objectives that may focus wavelengths differently (deep UV
for example), the system can handle switching between these types of
objectives without the need to re-calibration or optical adjustments.
- High update rate of 1KHz to maximize response times and throughput.

Enables faster response to changing sample heights, which is very
important when trying to maintain high throughputs. The system is able
to keep the focus well within the capture range when traversing across
the sample quickly.
- Various interface modules to accommodate almost any electrical connection
requirement. Custom interfaces available.

No need to redesign existing electrical interfaces to use the AF91x
series.
-
Optimized for patterned surfaces to avoid “false focus” conditions.