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Consumables |
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| Optical Components |
 Varsal
has been manufacturing atomic absorption instruments, assemblies,
parts and consumables for many years. As an outgrowth of these manufacturing
capabilities, Varsal is now offering custom optics manufacturing.
These products include a wide range of precision optics including
spherical lenses, achromats, ball lenses, prisms, windows, beam-splitters
and mirrors. In addition to custom optics Varsal will soon issue a
standard parts, precision optics catalog. |
| Lens Specifications |
| Singlet, Doublet, Achromat, Ball Lens, Drum Lens, Cylindrical Lens |
| Tolerance |
Commercial |
Precision |
| Diameter (mm) |
+0.00/-0.10mm |
+0.00/-0.05mm |
| Center Thickness (mm) |
+/-0.20mm |
+/-0.05mm |
| Radius (mm) |
+/-0.5% |
+/-0.1% |
| Power-Irregularity (fringe) |
3-5 |
1-3 |
| Wedge Lens (TIM, mm)-Centration |
0.05mm |
0.010mm |
| Bevels (Max face width@45? mm) |
0.5mm |
0.1mm |
| Scratch-Dig |
80/50 |
60/40-40/20 |
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| Note: |
- The radius tolerance depends on the radius value. For small
radii, we manufacture test plates by producing balls, with which
we can reach tolerances of +/-1~3µm.
- We can produce lenses with diameters 1mm~250mm and 0.5mm~20mm
for Ball Lenses.
- We use the Chinese equivalent material to Schott’s optical
glass and assure the material quality. Other special materials
(Fused Silica, Quartz, CaF2, etc.) are also frequently used.
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| Prism Specifications |
| Right Angle, Penta, Dove, Amici, Corner Cube |
| Tolerance |
Commercial |
Precision |
| Dimensions (mm) |
+/-0.2mm |
+/-0.05mm |
| Surface Figure |
1-2 λ |
0.5-1 λ |
| Angle |
1~30 minutes |
5~30 seconds |
| Bevels (Max face width@45? mm) |
0.5mm |
0.1mm |
| Scratch—Dig |
80/50 |
60/40-40/20 |
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| Note: |
- Varsal manufactures many kinds of prisms according to customers'
requirements (drawings, specifi cations, coating requirements,
etc.)
- The limitation for smallest prisms is around 1mm.
- We use the Chinese equivalent material to Schott's optical
glass and assure the material quality. Other special materials
(Fused Silica, Quartz, CaF2 etc.) are also frequently used.
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| Window Specifications |
| Windows, Wedges, Mirror Substrates, Coating Witness, Filter Substrates |
| Tolerance |
Commercial |
Precision |
| Dimensions (mm) |
+/-0.2mm |
+/-0.05mm |
| Thickness (mm) |
+/-0.2mm |
+/-0.05mm |
| Surface Figure |
1-2 λ |
0.1-1 λ |
| Parallelism |
minutes |
5~30 seconds |
| Scratch—Dig |
80/50 |
60/40-40/20 |
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| Note: |
- Varsal manufactures the above components according to customers'
requirements (drawings, specifi cations, coating requirements,
etc.)
- We use the Chinese equivalent material to Schott's optical
glass and assure the material quality. Other special materials
(Fused Silica, Quartz, CaF2 etc.) are also frequently used.
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