| Compare | Model | Drawings, CAD & Specs | Availability | Price | |||
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8816-6 Motorized Mirror Mount, Stability, 1.0 in. Diameter, 6 mm Thick |
In Stock
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$1,904 |
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8816-8 Motorized Mirror Mount, Stability, 1.0 in. Diameter, 8 mm Thick |
In Stock
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$1,904 |
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8817-6-V Motorized Mirror Mount, Vacuum, 1.0 in., 6 mm Thick, Stability |
In Stock
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$2,621 |
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8817-8-V Motorized Mirror Mount, Vacuum, 1.0 in., 8 mm Thick, Stability |
In Stock
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$2,733 |
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| Models |
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| Optic Diameter | 25.4 mm | 25.4 mm | 25.4 mm | 25.4 mm | |
| Optic Thickness | 6 mm | 8 mm | 6 mm | 8 mm | |
| Motorized Axes | 2 | 2 | 2 | 2 | |
| Angular Range | ±4° | ±4° | ±4° | ±4° | |
| Angular Resolution | 0.7 µrad | 0.7 µrad | 0.7 µrad | 0.7 µrad | |
| Wavefront Distortion | <0.065 λ (@633 nm) | <0.025 λ (@633 nm) | <0.065 λ (@633 nm) | <0.025 λ (@633 nm) | |
| Vacuum Compatibility | 10-6 Torr | 10-6 Torr | |||
| Wire Type | Teflon-Coated | Teflon-Coated | |||
| Cable Length | 2.1 m | 2.1 m | 2.1 m | 2.1 m | |
| Connector Type | 4-pin RJ-22 | 4-pin RJ-22 | 4-pin RJ-22 | 4-pin RJ-22 | |
| Thread Type | 8-32 (M4) CLR | 8-32 (M4) CLR | 8-32 (M4) CLR | 8-32 (M4) CLR |
The compact Picomotor actuator housing adds only 0.75 in. (19.1 mm) to the overall thickness of the mounts, allowing these mounts to be located where needed on a crowded optical table or breadboard.
Our Open-Loop Picomotor controllers and drivers are modular. You can daisy-chain up to 31 drivers together with four channels each, so you can have a network of up to 124 standard Picomotor actuators. You have two interface options with the controller system: hand pad or computer, both providing plug-and-play use. Alternatively, you may choose to use our TTL/Analog Picomotor driver.
The Stability Picomotor Optical Mount is available in a vacuum-compatible version which can be used in vacuum (10-6 Torr) environments. Featuring ultraclean materials and components along with vacuum-compatible Picomotor actuators, these mounts have been measured to outgas less than 0.1 ppm of volatile mass at 85 °C over three hours.
Picomotor actuators rely on the basic difference between dynamic and static friction. An example of this is the magician's "tablecloth trick," in which a quick pull (low dynamic friction) of the cloth leaves the dishes on the table, while a slow pull (high static friction) would pull the dishes off the table and cause a big mess! Our Picomotor actuator uses the same principle with a threaded jaw, similar to two halves of a split nut, clamped around a precision 80-pitch screw. One jaw is connected to one end of a piezoelectric transducer, and the other jaw is connected to the other end of the transducer. A slow electrical signal applied to the piezo slowly changes the length, causing the two jaws to slide in opposite directions. This slow sliding motion makes the screw turn (static friction). At the end of the transducer motion, a fast electrical signal quickly returns the jaws to their starting positions. Because of the screw’s inertia and low dynamic friction, it remains motionless, holding its position. Simply reversing the order of the fast and slow signals reverses the direction of rotation.
The unique optic-retention system of our Stability mounts uses an axial three-point mounting method to ensure that the distortion in the optic is minimized. This is due not only to the fact that the forces acting on the optic are oriented axially and in line, but also because there are twice as many mounting contact points. The forces that would cause distortion are essentially cut in half, more distributed, and axially opposite to eliminate bending.
Our Picomotor actuators allow for an angular resolution of 0.7 µrad, allowing for very small, controlled movements of your optics. The Picomotor actuator offers the additional advantage of using the integrated knobs for quick, manual adjustment of all axes.
The Picomotor actuator moves when voltage is applied to the piezo, changing its length and in turn moving the jaws which turn the screw. When no power is applied, the actuator does not move. You can feel confident that your mount will stay put, even when you power down your system.
Ultra-High Velocity