Transmissive Fine-Steering Optics
-Compact Transmissive Steering Elements-
Two Concepts Available
- Rotating Fine-Steering Flats
- Translating Fine-Steering Lenses
Why Use Transmissive Steering Elements?
- Compact Optical System
- Fewer Optical Elements
How Do They Work?
- 2-Axis Steering Motion
- Closed-loop Servo for Accuracy
- Flexure Suspensions
- Electro-Magnetic Actuators
What Performance Can Be Achieved?
- +/-1 Degree Rotational
- +/-2 mm Translational
- 1000 Hz Control Bandwidth
- Visible to Far Infra-red
What Functions Can They Do?
- Pointing
- Jitter Correction
- Alignment
- Line-of-Sight Stabilization
- Scanning
- Chopping
- Tracking
Rotating Fine-Steering Flats
-High Accuracy in a Compact Format-
How Does a Rotating Flat Steer a Beam?
- 2-axes Rotation of Transmissive Flat
- Axes of Rotation in the Plane of the Flat
- Refractive Index Causes Lateral Beam Motion
- Lateral Beam Motion in "Image Space" Steers Beam
- +/-1 Degree Travel
What Sizes are Available?
- 25, 50, and 75 mm Aperature
- Flats up to 20 mm Thick