Lower Lenses and Objectives
Our Optem® FUSION infinity-corrected lower lenses are precision-engineered to optimize optical performance over extended working distances. With seamless integration and rapid swap-out capability, the lower lenses enable fine-tuning resolution, working distance, and system magnification to meet specific application needs.
The FUSION lower lenses are readily available in a wide range of magnifications to cover numerous working distances. The infinity-corrected lower lenses offer the most extensive working distances to maximize the valuable area available around the target, while simultaneously ensuring high magnification imaging is possible even when proximity to the target is not. Available in both visible and SWIR versions. Customized lower lenses are also offered.
Visible:
| Part No. | Description | Magnification | EFL (mm) | Working Distance (mm) | Wavelength Range | Mass (g) |
| 35-00-11-000 | 0.40X Lower Lens | 0.40X | 500 | 490 | 400-700nm | 17 |
| 35-00-10-000 | 0.50X Lower Lens | 0.50X | 400 | 390 | 400-700nm | 17 |
| 35-00-09-000 | 0.67X Lower Lens | 0.67X | 300 | 290 | 400-700nm | 17 |
| 35-00-08-000 | 1.00X Lower Lens | 1.00X | 200 | 190 | 400-700nm | 17 |
| 35-00-06-000 | 1.25X Lower Lens | 1.25X | 160 | 155 | 400-700nm | 17 |
| 35-00-05-000 | 1.43X Lower Lens | 1.43X | 140 | 135 | 400-700nm | 17 |
| 35-00-04-000 | 1.67X Lower Lens | 1.67X | 120 | 110 | 400-700nm | 17 |
| 35-00-03-000 | 2.00X Lower Lens | 2.00X | 100 | 95 | 400-700nm | 17 |
| 35-00-01-000 | 3.00X Lower Lens | 3.00X | 67 | 50 | 400-700nm | 34 |
| 35-00-02-000 | 4.00X Lower Lens | 4.00X | 50 | 32 | 400-700nm | 51 |
SWIR
| Part No. | Description | Magnification | EFL (mm) | Working Distance (mm) | Wavelength Range | Mass (g) |
| 45-00-10-000 | 0.50X Lower Lens, SWIR | 0.50X | 400 | 390 | 633-1700nm | 17 |
| 45-00-08-000 | 1.00X Lower Lens, SWIR | 1.00X | 200 | 190 | 633-1700nm | 17 |
| 45-00-06-000 | 1.25X Lower Lens, SWIR | 1.25X | 160 | 155 | 633-1700nm | 17 |
| 45-00-03-000 | 2.00X Lower Lens, SWIR | 2.00X | 100 | 95 | 633-1700nm | 17 |
- Magnifications from 0.4X to 4.0X
- Working distances from 32 mm to 490 mm
- Numerical apertures from 0.018 to 0.18
- Visible (400-700nm) and SWIR (633-1700nm) versions
- Infinity corrected design
Visible:
| Part No. | Description | Magnification | EFL (mm) | Working Distance (mm) | Wavelength Range | Mass (g) |
| 35-00-11-000 | 0.40X Lower Lens | 0.40X | 500 | 490 | 400-700nm | 17 |
| 35-00-10-000 | 0.50X Lower Lens | 0.50X | 400 | 390 | 400-700nm | 17 |
| 35-00-09-000 | 0.67X Lower Lens | 0.67X | 300 | 290 | 400-700nm | 17 |
| 35-00-08-000 | 1.00X Lower Lens | 1.00X | 200 | 190 | 400-700nm | 17 |
| 35-00-06-000 | 1.25X Lower Lens | 1.25X | 160 | 155 | 400-700nm | 17 |
| 35-00-05-000 | 1.43X Lower Lens | 1.43X | 140 | 135 | 400-700nm | 17 |
| 35-00-04-000 | 1.67X Lower Lens | 1.67X | 120 | 110 | 400-700nm | 17 |
| 35-00-03-000 | 2.00X Lower Lens | 2.00X | 100 | 95 | 400-700nm | 17 |
| 35-00-01-000 | 3.00X Lower Lens | 3.00X | 67 | 50 | 400-700nm | 34 |
| 35-00-02-000 | 4.00X Lower Lens | 4.00X | 50 | 32 | 400-700nm | 51 |
SWIR
| Part No. | Description | Magnification | EFL (mm) | Working Distance (mm) | Wavelength Range | Mass (g) |
| 45-00-10-000 | 0.50X Lower Lens, SWIR | 0.50X | 400 | 390 | 633-1700nm | 17 |
| 45-00-08-000 | 1.00X Lower Lens, SWIR | 1.00X | 200 | 190 | 633-1700nm | 17 |
| 45-00-06-000 | 1.25X Lower Lens, SWIR | 1.25X | 160 | 155 | 633-1700nm | 17 |
| 45-00-03-000 | 2.00X Lower Lens, SWIR | 2.00X | 100 | 95 | 633-1700nm | 17 |
- Magnifications from 0.4X to 4.0X
- Working distances from 32 mm to 490 mm
- Numerical apertures from 0.018 to 0.18
- Visible (400-700nm) and SWIR (633-1700nm) versions
- Infinity corrected design