Description
1. Features
- High Damage Threshold: Designed to withstand high power laser applications without degradation.
- High Reflection: Provides superior reflection performance across a broad spectrum of wavelengths.
- Light Rectangular Design: Optimized for high-speed two-axis laser scanning systems.
- Versatile Application: Ideal for use in Laser Marking, Laser Precision Welding, and Laser Scanning.
- Customizable Sizes: Available in various spot diameters to suit specific application needs.
2. General Description
The Scanning Mirror is a high-performance optical component designed for use in high-speed two-axis laser scanning systems. It is commonly used in laser marking, laser precision welding, and laser scanning applications. These mirrors are engineered to provide high reflection efficiency and handle high laser power without significant damage. The scanning mirrors are available in a range of wavelengths and sizes, offering flexibility for a variety of scanning systems. Made from premium materials such as silicon, BK7, and fused silica, they are capable of handling different wavelengths including 10.6 µm, 2940 nm, 1064 nm, and others. The mirrors exhibit high durability and provide stable performance across varying environmental conditions.
3. Spectrum Transmission Curves
SOT can offer customized scanning mirrors based on the specific application requirements. Custom wavelengths and coatings are available upon request to ensure the best performance for different laser systems.
4. Coating Quality
- Adhesion Test: MIL-C-675C standards are followed to ensure the coating adheres firmly. The test involves applying a tape that meets LT-90 specifications to the film layer. The tape is fully applied and removed vertically without blistering or peeling.
- Temperature Test: The mirrors undergo temperature cycling from -62±1°C to 71±1°C. After exposure, no film detachment occurs when the adhesion test is repeated at room temperature (16-32°C).
- Abrasion Resistance: Conforming to MIL-C-675C standards, the mirrors pass abrasion resistance tests using gauze testers applying a force of 1.0 lbs (0.45 kg) to the film surface. The tests ensure the durability of the coating without damage after 25 repetitions.
- Humidity Test: The mirrors are subjected to 49 ±2°C with 95%-100% humidity for 24 hours, with no observed degradation such as peeling or scratches.
- Solvent and Cleaning Test: Mirrors are exposed to acetone and alcohol for a minimum of 10 minutes each. After cleaning, no peeling or surface scratches are evident.
- Salt Spray Test: Mirrors endure 100 hours in a 35°C environment with a 5% saltwater solution without any visible damage.
5. Standard Specifications
| Specification | Value |
| Material | Silicon, BK7, Fused Silica |
| Wavelengths | 10.6 µm, 2940 nm, 1064 nm, 650 nm, 532 nm, 355 nm |
| Reflectivity | >99.4% to >99.7% depending on wavelength |
| Spot Diameter | Ø7mm, Ø10mm, Ø15mm, Ø20mm, Ø25mm, Ø30mm |
| Surface Quality | 60-40 |
| Temperature Range | -40°C to +60°C |
6. General Applications and Examples
- Laser Marking: Scanning mirrors are integral to laser marking systems, ensuring high precision and speed for a wide range of materials.
- Laser Precision Welding: Used in high-power welding systems, scanning mirrors help to focus and direct the laser precisely.
- Laser Scanning: Vital in applications such as LIDAR and laser radar, scanning mirrors are used to direct the laser beam over large scanning areas with high accuracy.
7. SOT Strengths and Capabilities
Shape Optics Technologies Pte Ltd (SOT) specializes in the production of high-precision optical components, including Scanning Mirrors. With an emphasis on quality materials like silicon, BK7, and fused silica, SOT’s mirrors are ideal for demanding laser applications. Our mirrors are tailored for different wavelengths, spot diameters, and application requirements, providing optimal solutions for industries such as laser marking, precision welding, and optical systems. SOT’s commitment to high-quality standards and customizable products makes us a reliable partner for a variety of industries.
8. Standard Products
| Material | Wavelength | Reflectivity | Spot Diameter | Product Code |
| Silicon | 10.6 µm | >99.4% | Ø7/Ø10/Ø15/Ø20/Ø25/Ø30 mm | 06/10/15/20/25/30 |
| Silicon | 2940 nm | >99.0% | Ø7/Ø12/Ø16 mm | 07/12/16 |
| BK7 | 1064 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
| Fused Silica | 1064 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
| BK7 | 650 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
| Fused Silica | 650 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
| BK7 | 532 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
| Fused Silica | 532 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
| BK7 | 355 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
| Fused Silica | 355 nm | >99.7% | Ø5/Ø8/Ø10/Ø15/Ø20/Ø30 mm | 05/08/10/15/20/30 |
