Shanghai Optics is a custom optics manufacturer with over 55 years of optics manufacturing experience. We produce high precision Broadband Dielectric Mirrors according to customer’s specifications.
These mirrors have the same exceptional specifications as our laser mirrors except that they use special multi layer coatings to achieve a very high degree of reflectance for both s- and p-polarizations over a broad wavelength range. For white light or tunable laser use these mirrors provide the ultimate in high reflectance and insignificant polarization effect.
The reflectance of these coatings is consistently greater than 99.5% average. However, this figure includes very small dips in the p-reflectance which can never be completely eliminated. The s-polarization component has a reflectance greater than 99.9% over the entire range.
Factory Standard
- Designs for tunable and white-light applications
- Polished to Lambda/4 minimizing subsurface structure
- <3 arcmin Parallelism
- 30-100 dielectric layer designs for high reflectance
- Designed for 45 degree angle of incidence
- Standard diameters from 12.7 to 50.4mm
Contact us for manufacturing limit or custom specifications.
| Specifications & Tolerances | |
| Surface flatness: Lambda/4 | Reflectance: R>99.5% (45° incidence) |
| Surface quality: 20-10 | Diameter: +0, -0.1mm |
| Thickness: 0.1mm | Parallelism : <3 arcmin |
| Bevel: 0.2mmx45° typical | Clear aperture: >90% diameter |
| Durability: to MIL-C-675 | Material: BK7, grade A |
Broadband Dielectric Mirrors |
All measurements in nm | |||
| Part Number | Wavelength Range | Diameter, D | Thickness, T | |
| (nm) | (Inches) | (nm) | (nm) | |
| BDM-420-540-127-50-BK7 | 420-540 | 0.5 | 12.7 | 5 |
| BDM-420-540-191-50-BK7 | 420-540 | 0.75 | 19.1 | 5 |
| BDM-420-540-254-50-BK7 | 420-540 | 1 | 25.4 | 5 |
| BDM-420-540-300-50-BK7 | 420-540 | 1.18 | 30 | 5 |
| BDM-420-540-500-80-BK7 | 420-540 | 1.97 | 50 | 8 |
| BDM-420-540-508-80-BK7 | 420-540 | 2 | 50.8 | 8 |
| BDM-540-650-127-50-BK7 | 540-650 | 0.5 | 12.7 | 5 |
| BDM-540-650-191-50-BK7 | 540-650 | 0.75 | 19.1 | 5 |
| BDM-540-650-254-50-BK7 | 540-650 | 1 | 25.4 | 5 |
| BDM-540-650-300-50-BK7 | 540-650 | 1.18 | 30 | 5 |
| BDM-540-650-500-80-BK7 | 540-650 | 1.97 | 50 | 8 |
| BDM-540-650-508-80-BK7 | 540-650 | 2 | 50.8 | 8 |
| BDM-400-700-127-50-BK7 | 400-700 | 0.5 | 12.7 | 5 |
| BDM-400-700-191-50-BK7 | 400-700 | 0.75 | 19.1 | 5 |
| BDM-400-700-254-50-BK7 | 400-700 | 1 | 25.4 | 5 |
| BDM-400-700-300-50-BK7 | 400-700 | 1.18 | 30 | 5 |
| BDM-400-700-508-80-BK7 | 400-700 | 2 | 50.8 | 8 |
| BDM-700-1000-127-50-BK7 | 700-1000 | 0.5 | 12.7 | 5 |
| BDM-700-1000-191-50-BK7 | 700-1000 | 0.75 | 19.1 | 5 |
| BDM-700-1000-254-50-BK7 | 700-1000 | 1 | 25.4 | 5 |
| BDM-700-1000-508-80-BK7 | 700-1000 | 2 | 50.8 | 8 |
| BDM-800-1200-127-50-BK7 | 800-1200 | 0.5 | 12.7 | 5 |
| BDM-800-1200-191-50-BK7 | 800-1200 | 0.75 | 19.1 | 5 |
| BDM-800-1200-254-50-BK7 | 800-1200 | 1 | 25.4 | 5 |
| BDM-800-1200-508-80-BK7 | 800-1200 | 2 | 50.8 | 8 |
Need help?
We offer consultations and initial feasibility studies. If you have questions about limitations or lens capabilities we’re more than happy to work through your proposed custom components. As an unmatched custom optical provider, we’ll do everything that we can bring your vision to life.
