FIG. 02.01
Prisms · Type 04 / 08
Equilateral Prisms
Three equal 60° angles: the classic prism for splitting light into its spectrum.
- Part
- Equilateral Prism
- Family
- Prisms
- Fig.
- 02.04
- Coating
- In-house
- Quality
- ISO 9001
- Made in
- Roorkee
Description
An equilateral prism has three equal faces and three 60° angles. Because the refractive index of glass varies with wavelength, each colour refracts by a different amount and white light spreads into a spectrum. It is used for dispersion in spectroscopy, in physics experiments and in teaching.
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 prisms.
FIG. 02.02
Dove Prisms
FIG. 02.03
Penta Prisms
FIG. 02.05
Wedge Prisms
FIG. 02.06
Rhomboid Prisms
FIG. 02.07
Amici Roof Prisms
FIG. 02.08
Schmidt Prisms
Quote for equilateral prisms.
Tell us the size, material, coating and quantity, or send a drawing. We reply with a quote.