Bi-Telecentric Industrial Lenses
Telecentric lenses are the optimal choice for image processing solutions in industrial environments, where precise measurement of components is essential. Our bi-telecentric lens designs can be be quickly and flexibly adapted or extended to meet specific customer requirements.
Features and Benefits
Special Imaging Properties
Telecentric lenses have special imaging properties that offer many advantages for surveying tasks. Our range of bi-telecentric lenses is also telecentric on the image side, which further enhances the image quality.
Low Distortion and Telecentric Error
DIOPTIC’s bi-telecentric lenses are distinguished by low distortion and a notably small telecentric error. The angle of view is perpendicular to the imaging plane across the entire field of view. This eliminates the need for further calibration, allowing precise measurement and characterization of test objects.
Modular Design
Our range of bi-telecentric lenses can be flexibly extended to meet special customer requirements thanks to their modular design. This enables us to develop the right lens for your application quickly and effectively.
Wide Range of Applications
Image with telecentric (left) and entocentric (right) lens. The magnification is always the same, regardless of the distance at which an object is located within the focal range. This allows the size of an object to be determined without further information on the object distance.
Image with telecentric (left) and entocentric (right) lens. The angle of view of a telecentric lens is perpendicular to the imaging plane over the entire image field. Surfaces and edges perpendicular to the imaging plane are therefore not imaged. This is particularly advantageous when measuring tall components and long profiles.
Bi-telecentric Lenses
| Series | BTL 11.5 | BTL 18.5 | BTL 23 | BTL 39.2 | BTL 44 |
|---|---|---|---|---|---|
| Sensor diagonal up to | 2/3″ (16.9 mm) | 1.1″ (27.9 mm) | 4/3″ (33.9 mm) | 39.2 mm | 44 mm |
| Image circle (mm) | 11.5 | 18.5 | 23 | 39.2 | 44 |
| Object circle (mm) | 25 – 315 | 25 – 315 | 25 – 315 | 25 – 315 | 25 – 315 |
| Working distance (mm) | 45 – 545 | 45 – 545 | 45 – 545 | 45 – 545 | 45 – 545 |
| Magnification | 0.46 – 0.037 | 0.74 – 0.059 | 0.92 – 0.073 | 1.568 – 0.124 | 1.76 – 0.14 |
| Camera mount | C-Mount | C-Mount | M42 | M58 | M58 |
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