ULTIMA^® Low Wavefront Distortion Mirror Mounts

Low Wavefront Distortion (LWD) optical mounts are specifically designed to hold mirrors in a way that will not induce optical distortion. They use an axial three-point mounting method to gently, but securely, hold optics with tight flatness tolerances.

Designed to minimize wavefront distortion
Interferometer verified
Axial three-point optic mounting

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Showing 12 of 12 total products

Compatibility:

Description	Compatibility	Optic Diameter	Number of Actuators	Price
U100-ACMirror Mount, ULTIMA^®, Center, 1.0 in. Diameter, No Actuators	UNIVERSAL	25.4 mm	0	$260
U100-AC2KMirror Mount, ULTIMA^®, Center, 1.0 in., 2 Locking Knob Adjustment	UNIVERSAL	25.4 mm	2	$280
U100-AC3KMirror Mount, ULTIMA^®, Center, 1.0 in., 3 Locking Knob Adjustment	UNIVERSAL	25.4 mm	3	$317
U200-ACMirror Mount, ULTIMA^®, Center, 2.0 in. Diameter, No Actuators	UNIVERSAL	50.8 mm	0	$342
U200-AC2KMirror Mount, ULTIMA^®, Center, 2.0 in., 2 Locking Knob Adjustment	UNIVERSAL	50.8 mm	2	$407
U200-AC3KMirror Mount, ULTIMA^®, Center, 2.0 in., 3 Locking Knob Adjustment	UNIVERSAL	50.8 mm	3	$454
U300-ACMirror Mount, ULTIMA^®, Center, 3.0 in. Diameter, No Actuators	UNIVERSAL	76.2 mm	0	$468
U300-AC2KMirror Mount, ULTIMA^®, Center, 3.0 in., 2 Locking Knob Adjustment	UNIVERSAL	76.2 mm	2	$555
U300-AC3KMirror Mount, ULTIMA^®, Center, 3.0 in., 3 Locking Knob Adjustment	UNIVERSAL	76.2 mm	3	$582
U400-ACMirror Mount, ULTIMA^®, Center, 4.0 in. Diameter, No Actuators	UNIVERSAL	101.6 mm	0	$494
U400-AC2KMirror Mount, ULTIMA^®, Center, 4.0 in., 2 Locking Knob Adjustment	UNIVERSAL	101.6 mm	2	$582
U400-AC3KMirror Mount, ULTIMA^®, Center, 4.0 in., 3 Locking Knob Adjustment	UNIVERSAL	101.6 mm	3	$614

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Specifications

Mechanism
Kinematic
Actuator Drive
Knob
Actuator Locks
Yes
Adjustment Screw Thread
100 TPI

Optic Loading
Rear
Material
Anodized Aluminum
Thread Type
8-32 (M4) CLR

Features

3-Point Axial Clamping Reduces Mounting Stress

With the axial 3-point mounting, because there are twice as many mounting points, the forces that would cause distortion are essentially cut in half, more distributed, and axially opposite to eliminate bending.

Test Results - Minimized Distortion

Interferometric testing results show the flatness of the mirrors held in these mounts, measure at 0.100 wave PV (peak to valley). Compare this to mirrors held in a mount with a nylon-tipped set screw where the flatness degrades to 0.600 to 0.800 wave PV. An unconstrained 1/10th wave mirror will typically measure 0.090 wave PV.

Many Actuators - One Mount

The ULTIMA's industry-standard clamp design allows many different types of actuators to be used to adjust the mirror position to meet the requirements for any application. Actuators can be replaced with ease by simply loosening two screws to allow the actuator to gently slide into and out of the mount. ULTIMA mounts are compatible not only with standard knob and hex-key adjustment screws, but also with micrometers and motorized actuators. See our Recommended Compatible Actuators in the Accessories section below.

Locking Adjustment Screws

For long-term stability, ULTIMA® Low Wavefront Distortion Mirror Mounts use a Flexure Lock built with an AJS bushing. Flexure Locks exert a tangential force on the screw to prevent rotation.

Accessories

Recommended Compatible Actuators

Description	Compatibility	Price
AJS100-0.5HHex Adjustment Screw, 100 TPI, 12.7 mm Travel, End Lock	UNIVERSAL	$39
AJS100-0.5Adjustment Screw, 100 TPI, 12.7 mm Travel, Small Knob, Side Lock	UNIVERSAL	$39
AJS127-0.5KAdjustment Screw, 127 TPI, 12.7 mm Travel, Large Knob, Side Lock	UNIVERSAL	$56
AJS254-0.5K-NLAdjustment Screw, 254 TPI, 12.7 mm, 280 nm Sensitivity, Large Knob	UNIVERSAL	$93
AJS170-0.5K-NLAdjustment Screw, 170 TPI, 12.7 mm Travel, Large Knob	UNIVERSAL	$75
SM-13Vernier Micrometer, 13 mm Travel, 9 lb. Load Capacity, 50.8 TPI	UNIVERSAL	$103
HR-13Micrometer Head, High Resolution, 0.5 µm Sensitivity, 13 mm Travel	UNIVERSAL	$229
DM-13LLockable Differential Micrometer, 13 mm Coarse, 0.2 mm Fine, 11 lb.	UNIVERSAL	$726
TRA12CCMotorized Actuator, Miniature, 12 mm Travel, DC Servo motor	UNIVERSAL	$1,065
TRA12PPDMotorized Actuator, Miniature, 12 mm Travel, Stepper, 25-pin D-Sub	UNIVERSAL	$1,065
LTA-HSMotorized Actuator, High Speed, 50 mm Travel, 3/8-40 Thread	UNIVERSAL	$2,463

ULTIMA^® Low Wavefront Distortion Mirror Mounts

ULTIMA^® Low Wavefront Distortion Mirror Mounts

Specifications

Features

3-Point Axial Clamping Reduces Mounting Stress

Test Results - Minimized Distortion

Many Actuators - One Mount

Locking Adjustment Screws

Accessories

Recommended Compatible Actuators

Resources

Technical Notes

Selection Guides

Literature

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