Beam Steering

  • Update:Aug 14, 2018
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We are developing 2D beam steering solutions that can be used in reflection mode (2D mirror) or in transmission mode (tunable prism).

Product Introduction

We are developing 2D beam steering solutions that can be used in reflection mode (2D mirror) or in transmission mode (tunable prism). 

Dual Axis Vector Scan Mirror with Position Feedback

Our dual axis mirrors offer the benefit of large deflections and large mirror size in a compact package. The actuator is based on proven technologies. A built-in position feedback allows it to be accurately controlled with a standard PID controller. The virtual rotation point of our 2D mirrors is close to the mirror surface which makes 2D scanning straight forward. Applications range from automotive (LiDAR, dynamic headlights, ADAS) and vision (field-of-view expansion, zoom) to biometric (eye-tracking), diagnostics and 3D printing.

Tunable prism for laser alignment and image stabilization

Our tunable prism (TP) is suitable for optical alignment and beam-steering in transmission. The core element can be combined with your preferred actuation method and achieve a compact form factor. The low absorption makes it suitable for high-power applications. Thanks to the low dispersion liquid it can also be used for polychromatic applications.

3D beam steering

Combining a 2D mirror for x/y with an electrically focus tunable lens allows you to direct your laser beam spot precisely and fast at any point within the addressable volume. This can be of interest for dynamic headlights, diagnostic and spectroscopic devices and 3D printing.

Dual Axis Mirror with Position Feedback STOT-MR-15-30

Our dual axis mirror series STOT-MR-15-30 is the ideal choice for applications that require large deflections in a compact form factor. With a mirror size of 15mm the STOT-MR-15-30 achieves up to +/- 25° mechanical tilt, which results in up to +/- 50° optical deflection. The mirror includes a position feedback system which allows it to be accurately controlled with a standard PID controller.

The actuator is based on proven technologies. In contrast to galvo mirror systems, the virtual rotation point is very close to the mirror surface. The mirror can be fabricated with various coatings such as gold, protected silver and other coatings on request.

STOT-MR-15-30 (engineering samples available)

The following table summarizes the main specifications of the STOT-MR-15-30:

Standard configurations
(engineering sample)

Mirror size
(mm)

Package
size (mm)

Mirror
coating

Max. mechanical tilt
(° half angle)

STOT-MR-15-30-G-25x25D

15

30

gold

25

STOT-MR-15-30-PS-25x25D

15

30

protected silver

25

Applications

Tunable Prism STOT-TP-12-16

(For laser alignment and image stabilization)

The tunable prism is a tunable wedge that allows to tilt two optically flat and AR coated glass windows with respect to each other. The two glass windows are held together by a bellow structure that is filled with a low dispersion clear optical fluid. The core element can be integrated with a large variety of actuation principles such as mechanical or motorized lead screws, voice-coil and piezo actuators.

The following table outlines the specifications of our standard tunable prism core element for a particular fluid. Cover glass coatings and fluids can be adapted on demand.

STOT-TP-12-16 (engineering samples available)

 The following table summarizes the main specifications of the STOT-TP-12-16:

 

Clear aperture

Outer diameter

Max mech. tilt angle

Max. optical deflection

STOT-TP-12-16 (engineering sample)

12mm

16mm

+/- 20°

8.2°

Applications

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