| Model geoHEAT |
40_NIR |
60_NIR |
100_NIR |
60_VIS |
100_VIS |
| Type |
Achromatic lenses |
| Input Clear Aperture |
16 mm |
19 mm |
| Focal Length, mm (at 1064 nm) |
40.8 |
60.2 |
102.0 |
61.6 |
99.1 |
| Working Distance, mm (from last mechanical surface to Focus) |
80 |
60.0 |
92.0 |
57.0 |
88.0 |
| F Number |
2.6 |
3.2 |
5.4 |
3.2 |
5.2 |
| Overall Dimensions |
55 / 110 |
30 / 26.5 |
30 / 17.5 |
30 / 25.5 |
30 / 17.5 |
| Optimum spectral range, nm |
600 - 900, 1020 - 1100 |
400 - 700, 1020 - 1100 |
| Other features |
- Achromatic for design wavelengths, reduced chromatic shift
- Optimized for purposes of focusing the near-IR radiation
- Diffraction limited for the working spectral bands
- Compact design
- No cemented doublets
- Extended back focal length (distance from last optical surface to focal plane)
- Optimized to compose relay imaging optical system with a lens from BK7 of 500...1500 mm focal length, except geoHEAT 40_NIR
- Optimized for operation in geoHEAD - combined system for heating and spectroradiometric temperature measurements
|
| Applications |
Laser Heating in studies of physical properties of materials (for example, minerals) under high pressure and high temperature in combination with spectroradiometric temperature measurements. |
| Mounting |
External Thread M27x1 (M24x1 for modification of geoHEAT 40_NIR, geoHEAT 100_NIR) |
| Weight |
< 400 g |
< 100 g |