Custom BK7 Laser Reflector Mirror
- Material: BK7
- Aperture: 90%
- Surface Quality: 20/10 — 80/50
- Tolerance: 0.05
Specifications
| Specification | Value |
|---|---|
| Substrate Materials | N-BK7 |
| Dimensional Tolerance | ±0.1 mm |
| Surface Quality | 60-40 Scratch-Dig |
| Parallelism | 3′ |
| Flatness | λ/4 per 25 mm @ 633 nm |
| Bevel | Protective |
The BK7 reflector mirror is a reflective optical component processed from BK7 optical glass.
Often in the form of a retroreflector or a diffuse reflector

Why choose BK7 substrate?
Compared with other substrates, BK7 have unique performance advantages:
- Excellent optical uniformity
- Good mechanical and chemical stability
BK7 glass has a high hardness (Mohs hardness approximately 6-7), and its anti-wear and anti-shock performance is superior to ordinary glass.
- Significant cost advantage
It can effectively control the overall cost of the equipment, with extremely high cost performance.
Applications of the BK7 Reflector Mirror
- Research and laboratory field: Interferometers, spectrometers, and spectroscopes, for beam steering, reflection, and focusing.
- Industrial manufacturing
- Laser processing: Laser cutting, laser welding, laser engraving equipment
- Machine vision: Industrial cameras, visual inspection equipment
- Medical equipment: Endoscopes, fundus cameras, etc. for medical imaging
- Aerospace and military: In unmanned aerial photography equipment, satellite remote sensing systems
Chenyu employs advanced production techniques and uses high-quality BK7 optical glass as the base material to manufacture high-quality reflectors for you.
Meet all your needs.
If you have any needs, please feel free to contact us at any time, or check out our other reflector products.



