Sapphire Plano Convex Lens / SLSH
Sapphire crystal is a transparent crystal without absorption from the visible to infrared wavelength of 5µm.
In addition, sapphire has extremely hard and resists scratching.
Sapphire crystal is a very stable material used in optical equipment in the field.Since there is no absorption (1.4μm, 2.2μm, 2.7μm) by water (OH radical), it can be used on a lens for the analyzer for near-infrared.
Common Specifications
| Material | Optical sapphire crystal (uniaxial crystal) |  |
|---|---|---|
| Design Wavelength | 546.1nm | |
| Coating | Uncoated | |
| Shape | Spherical Plano Convex Polished Both Surfaces |
|
| Centration | ＜10′ | |
| Clear Aaperture | 90% of diamete | |
| Surface Quality (Scratch-Dig) | 60－40 |
| Schematic | Outline Drawing |
|---|---|
 |
 |
| Part Number |
Focal Length f |
Back Focal Length fb |
Edge Thickness te |
Center Thickness tc |
|---|---|---|---|---|
| SLSH-25-50P | 50mm | 47.7mm | 2.0mm | 4.1mm |
| SLSH-25-100P | 100mm | 98.3mm | 2.0mm | 3.0mm |
| SLSH-25-200P | 200mm | 198.6mm | 2.0mm | 2.5mm |
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