Representative image. Final geometry, finish and coating are confirmed from your drawing.
Reference · TO-ALM
Aluminum-Coated Mirror
Mirrors
A broadband metallic mirror with a protected aluminum coating, supplied on N-BK7 or fused silica with custom dimensions.
Typical values
| Parameter | Reference |
|---|---|
| Material | N-BK7; UV fused silica by review |
| Coating | Protected aluminum; optional dielectric enhancement |
| Surface figure | λ/4 @ 632.8 nm standard; λ/8–λ/10 by review |
| Surface quality | 40/20 standard; 20/10 by review |
| Dimension tolerance | ±0.1 mm |
| Angle tolerance | ±3 arcmin |
| Clear aperture | >90% |
Use this table to understand what is routine, what is reviewed against a drawing and where the project needs a different route.
| Parameter | Standard | By drawing review | Notes |
|---|---|---|---|
| Coating | Protected aluminum | Protected gold, silver, dielectric enhancement | — |
| Surface figure | λ/4 | λ/8–λ/10 | — |
| Surface quality | 40/20 | 20/10 | — |
| Dimensions | To drawing | Large or non-circular formats | — |
| Substrate | N-BK7 | UVFS or other glass | — |
Protected aluminum is a practical broadband reflector from the visible into the near infrared. The coating is more forgiving than a dielectric stack but still needs the wavelength range, AOI and environmental exposure. Specify whether a protective overcoat or an additional AR layer is required.
- Broadband reflection
- Illumination
- Instrument mirrors
- Protected aluminum coating
- N-BK7 / UVFS
- Custom dimensions
- Optional dielectric enhancement
What to include in the RFQ
The following inputs let us quote the geometry, coating and inspection route without guessing.
Request a quote for this component- 01Wavelength range and AOI
- 02Dimensions, thickness and clear aperture
- 03Flatness and surface quality
- 04Coating: protected aluminum, gold or enhanced
- 05Environmental exposure
- 06Quantity
