LF2100 pages

PRECISION IN MOTION

LF210 Laser Autofocus

Laser Autofocus System

Microprocessor
Controlled

Configurable for Piezo, Stepper
or Position Output

Precision Optics
Digipot/Keypad
Control
5 Volt
DC Input

Selectable Line or
Spot Laser

RS232 Input

LED System Status

Output for Pulse and
Direction, Position
or Piezo Control

The LF210 combines the latest in intelligent microprocessor control and advanced optics to provide the
fastest and most reliable laser autofocus available. Ideally suited for reflective specimens, the compact module
incorporates precision optics that easily adjust to different microscopes and optical systems with infinity
corrected optics. The new optical design eliminates the need to manually adjust the focus trim and loop gain
(which is done automatically in the processor) resulting in a dramatic improvement in throughput.
The intelligent digital control automatically senses when the sample has moved out of the field of view and
stops the focus drive, while LED’s give a clear presentation of the focus status. Combined with the LF100K
digipot/keypad the LF210 provides a microstepping drive for bipolar stepper motors, programmable voltage
output for DC or Piezo Z control, and voltage output for open loop height sensor operation. The microprocessor
and flash memory allow for programming of gains, servo loops, speed and other parameters. The step motor
drive in the LF100K digipot/keypad plus pulse and direction output allow the LF210 to drive virtually any step
motor system. Focus error output is also available for those who wish to provide their own motor control.
The LF210 comes field selectable for spot or line laser mode. The spot laser mode is ideal for smooth
samples with very few features while the line laser mode is best for applications such as patterned wafers.
The LF100K Digipot/Keypad allows for easy adjustment of the focus in a manual mode with the digipot. The
keypad also lets you turn servo control on and off and has buttons for home, speed, focus up and focus down.
Five other keys store information for each objective and are used to change system parameters when the
objectives are changed.The LF100K’s internal stepper drive is suitable for controlling most one amp bipolar
stepper motors.
General Specifications
• Microprocessor controlled for ultimate flexibility and speed
• Configurable for Piezo, stepper or position output
• Digipot for manual adjustment of focus
• Selectable line or spot laser
Version: 12112014

• Output for pulse and direction, position or piezo control
• Easy to install and adjust
• Electronic adjustment of focus trim when changing objectives
• Focus motor drives fine focus or use module to drive users focus
motor LED’s give status of focus
Visit Prior on the web at

prior.com