The drive electronics are provided on a separate circuit board that accepts USB, analog and I2C motion commands. As an option, New Scale can provide this chip set for direct integration on the camera circuit board.

Custom auto focus modules for board-mounted CCD/CMOS cameras

Victor, NY - October 13, 2009 – New Scale Technologies today announced the first shipment of custom auto focus modules that install directly on board-mounted cameras and accept standard threaded lens assemblies.

This compact lens motion module uses New Scale's tiny SQUIGGLE motor, TRACKER position sensor and integrated electronics to provide extremely compact, high-resolution closed-loop control.

The components are combined with precise mechanical guidance in a polymer housing only slightly larger than the optical lens assembly.

This lens motion module can be easily and rapidly customized to fit almost any board-mounted camera using parametric computer design tools.

The customer must define the PCB mechanical mounting interface, dimensions of the threaded lens assembly, and the macro and infinity image plane locations.

The drive electronics are provided on a separate circuit board that accepts USB, analog and I2C motion commands. As an option, New Scale can provide this chip set for direct integration on the camera circuit board.

Specification summary for customizable AF module:

• Stroke: >2 mm
• Lens Mass: up to 10 g
• Velocity: 7 mm/s
• Encoder Type: Hall sensor array, incremental (absolute over 2 mm)
• Position Resolution: 0.5 µm (micro meters)
• Position Repeatability: 2 µm (micro meters)
• Lens Thread: M6 to M12
• Mechanical Limits: Included
• Standard Commands: Move to Target, Move Step
• Step & Settle Time: <20 ms for a 30 µm (micro meter) step
• Motion Interface: Digital: USB (using Windows® GUI) or I2C; Analog: 0 to 3.3 volts

 For more information visit www.newscaletech.com.