DOF-5 Dover Objective Focusing Stage
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DOF-5 Dover Objective Focusing Stage Microscope Nanopositioning Stage The new Dover Objective Focusing (DOF) stage is a low-cost, high-performance nanopositioning stage optimized for optical imaging applications. When compared to piezo flexure stages typically used for focusing, the DOF-5 offers greater travel (5 mm) and higher bandwidth (> 225 Hz), providing fast step and settle while maintaining image stability.

Overview Nanopositioning stages with piezoelectric motors and flexure bearings have been the industry standard for focusing for too long. They are expensive, have restricted travel, and stiffness issues. The new DOF-5 Objective Focusing Stage has been engineered to overcome these performance drawbacks, offering greater travel (5 mm) and higher bandwidth (> 225 Hz) at a fraction of the cost. By embedding the servo drive and motion controller within the stage, we have removed complex cabling and reduced the overall system cost to typically 50-60% less than competing offerings, while still...

Total Travel Full Travel Accuracy (2σ) 2,3 Full Travel Bi-directional Repeatability (2σ) 2,3 Minimum Move Move and Settle (100nm step, ±15nm) 3 Move and Settle (250nm step, ±15nm) 3 Max Velocity (1.25nm feedback resolution) Max Velocity (5nm feedback resolution) Max Acceleration with 1kg Payload Dimensions (excluding objective mount) Servo Stability Typical Total Mass (includes objective mount) Communications Options: RS232, RS485, CAN, Step & Direction) 1 2 3 Other loads can be supported, for info contact Dover Motion. Tested according to ISO 230-2 standard. Specifications based on a 250g...

DOF-5 Dimensional Drawings DOF-5 Front View Optional banking pins: use 2 pins with diameter in range of: 5 - 10 mm DOF-5 Side View Home Location (0mm position) is in the center of the stage travel Use 5mm hex key for hard stop adjustment Positive hard stop adjustment +3.0mm to +1.7mm Negative hard stop adjustment -3.0mm to -1.7mm Note: Objective Mount and Adapter not shown, see additional sections for more informaiton. Dover Motion 159 Swanson Road Boxborough, MA 01719

Objective Mount and Adapter Objective Mount Front View Objective Mount Top View Note: Threaded adapter not shown, for threaded adapter information, see downloadable CAD on the dovermotion.com website The DOF-5 is orderable with a precision aligned objective bracket with commonly used thread options. The standard thread options are: • M25 x 0.75 • M26 x 0.706 The DOF-5 is also offered with no objective bracket. See the configurator for ordering code. Dover Motion 159 Swanson Road Boxborough, MA 01719

Connector Pinout DOF-5 Stage Pinout Pin Number Pinout Diagram Supply Return Digital Input A (Step) Digital Input B (Direction) Digital Output Digital Return Supply Return Logic Supply DOF-5 Connector: Harwin G125-MH11605L7P Mating Connector: Harwin G125-2241696F1 Dover Motion 159 Swanson Road Boxborough, MA 01719

Objective Orientation The DOF-5 can be used in a horizontal or vertical orientation. The orientation and placement location of the adapter must be specified when ordering. For vertical applications, the gravity counterbalance force will be setup with the ordered payload for either a “regular” or “inverted” configuration. In a “regular” orientation, the counterbalance force is set with a slight upwards bias so that the stage moves to the upper (positive) hard stop upon power off. In an “inverted” orientation, the counterbalance force is set with a slight downwards bias so that the stage...

Communications Options Communications (RS-232, RS-485, and CAN) Setup RS-232, RS-485, and CAN communication for the DOF-5 are DIP switch selectable. Communications DIP switches are accessible on the back of the DOF-5 stage and are preset at the factory. All communication signals are referenced to pin 14, digital return on the DOF controller connector. Full Duplex Note: High Z is 125KΩ termination resistance, and low Z is 120Ω termination resistance (for RS-485 and CAN). RS-232 To communicate to the stage using RS-232, set switches 1 and 2 to the “ON” state. Switches 3 and 4 are ignored and...

Model Dover Objective Focuser Travel 5 mm Travel Communications Switch Setup RS-232 CAN 2.0B, low impedance RS-485(full duplex), low impedance RS-485(full duplex), high impedance CAN 2.0B, high impedance Objective Thread No objective bracket M25 x 0.75 M26 x 0.706 M27 x 0.75 SM1 RMS M32 x 0.75 0 - 900 : grams Payload Payload orderable in 10g multiples Objective Orientation & Position Vertical, Regular, Position 1 Vertical, Regular, Position 2 Vertical, Regular, Position 3 Vertical, Inverted, Position 1 Vertical, Inverted, Position 2 Vertical, Inverted, Position 3 Horizontal, Regular,...

Optional Accessory Cables DOF to Breakout Cable (P/N: 36086-00) • 1 meter long cable • Standard DOF connector on one end • Terminal block breakout on other end Shown: DOF to Breakout Connector DOF to RS-232 to USB (P/N: 36100-00) • 1 meter long cable to terminal block • Standard DOF connector to: - USB (includes RS-232 adapter) - Ferrules for connection to power supply - I/O accessible on terminal block DOF to RS-485 to USB (P/N: 36101-00) • 1 meter long cable to terminal block • DOF connector to: - USB (includes RS-485 adapter) - Ferrules for connection to power supply - I/O accessible on...