Transmissive Fine-Steering Optics

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- 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 - Scanning
- Jitter Correction - Chopping
- Alignment - Tracking
- Line-of-Sight Stabilization

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 Aperture
  • Flats up to 20 mm Thick
 
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