FIG. 07.01
Mirrors & Reflectors · Type 03 / 05
Concave Mirrors
Curved mirrors that focus light, with no chromatic aberration.
- Part
- Concave Mirror
- Family
- Mirrors & Reflectors
- Fig.
- 07.03
- Coating
- In-house
- Quality
- ISO 9001
- Made in
- Roorkee
Description
A concave mirror has an inward-curved reflecting surface that brings light to a focus. For a spherical mirror the focal length is half the radius of curvature (f = R/2). Because it works by reflection, every wavelength comes to the same focus. Uses include astronomy, laser systems and imaging.
Specify yours.
Start from a catalogue part or from your own drawing, in the material, coating and tolerance grade you need.
AMaterial
- Optical glass (BK7-class crown, flint)
- Fused silica / fused quartz
- Sapphire
- CaF₂
- BaF₂
- MgF₂
- Silicon (Si)
- Germanium (Ge)
- Zinc sulphide (ZnS)
- Zinc selenide (ZnSe)
- Nd:YAG crystal
- Other UV and IR materials
BCoatingIn-house
- ARAnti-reflection
- Al · AgMetallic mirror
- HRDielectric mirror
- Filter
- Beam-splitter
- Polarizing
CTolerance grade
| Parameter | Commercial | Precision |
|---|---|---|
| Thickness | ±0.1 mm | ±0.01 mm |
| Radius | 1% | 0.5% |
| Refractive index | 0.001 | 0.0001 |
| Abbe (V-number) | 1% | 0.1% |
| Centration | 3 arc-min | 30 arc-sec |
| Tilt / wedge | 1 arc-min | 10 arc-sec |
| Surface irregularity | 1 fringe | λ/4 (0.25 fringe) |
| Surface quality (scratch-dig) | 60-40 | 10-5 |
DMade to your drawing
Send your drawing.
A drawing or a short spec is enough. We quote to it.
- Dimensions and tolerances
- Material and coating
- Surface quality
- Quantity
More mirrors & reflectors.
Quote for concave mirrors.
Tell us the size, material, coating and quantity, or send a drawing. We reply with a quote.