Lenses for machine vision
Varifocal telecentric lenses
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Reference technical notes | ||||||
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Size of object viewed does not change even if the object itself is moving up and down and the distance between viewed object and lens changes. Telecentric lenses are suitable for inspection or precision measurement.
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| Magnification diagram for varifocal telecentric lens with variable magnification | Varifocal telecentric lens with lighting |
Telecentric with variable magnification | |||||||
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| Code | Magnification | Object distance | TV distortion | Numerical aperture object side | Resolving power | Depth of field | Imager |
| VTL0510 | 0.5x-1x | 174-114mm | 0,01% | 0.066-0.085 | 12.5~9.8 | 1.20mm~0.47mm | 2/3" |
| VTL0513 | 0.5x-1.3x | 173-97mm | 0,01% | 0.044-0.059 | 8~6.4 | 1.84mm~0.52mm | 2/3" |
C mount | |||||||
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| Magnification diagram for varifocal telecentric lens with variable working distance | Varifocal telecentric lens with lighting |
Telecentric with variable working distance(WD) | |||||||||
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| Code | Magnif. | F No. | Object distance | TV distortion | Object/sensor distance | Numerical aperture object side | Resolution | Depth of field | Imager |
| VTL01 | 0.1x | 4.5 | 150~300mm | 0,00% | 317~466mm | 0.011 | 37 | 36.0mm | 1/3" |
| VTL014 | 0.14x | 5.9 | 150~270mm | 0,00% | 320~437mm | 0.012 | 33 | 24.0mm | 1/2" |
| VTL019 | 0.19x | 4.5 | 150~250mm | 0,00% | 328~425mm | 0.021 | 21 | 10.0mm | 2/3" |
C mount | |||||||||
Converters | |||
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| Code | Magnification | Object distance | Application |
| VTL05FC | 0.25x-1.0x | 323.2-114.6mm | for VTL-0513 |
| VTL20FC | 0.5x-1.3x | 56.2-42.6mm | for VTL-0513 |
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