OPTO Very large & linescan sensors
Opto Engineering (OPTO) is well-known for its precision optics, especially for demanding applications like those involving large and line scan sensors.
When looking at OPTO’s solutions for Very Large and Linescan Sensors, the key product lines are typically their specialized Telecentric Lenses designed to cover large image circles. The two most prominent series are the TC16M and the TC10M, along with the larger capacity TC12K series.
OPTO's Telecentric Lenses for Large and Linescan Sensors
These lenses are primarily telecentric, meaning they maintain constant magnification regardless of the object’s distance from the lens (within the depth of field). This feature is critical for accurate, high-precision measurement (metrology) applications.
TC16M Series (Largest Format)
| Feature | Key Specifications | Typical Applications |
| Max Sensor Size | Up to 43.3 mm diagonal (e.g., 35 mm Full Frame $36 \times 24 \text{ mm}$ format). | Extremely accurate measurement of large parts like engine parts, glass/metal sheets, PCBs, and LCDs. |
| Linescan Support | Optimized for 4k and 8k line scan cameras. | High-speed inspection of continuous materials (web inspection, surface inspection). |
| Resolution | Designed for very high-resolution detectors (e.g., 11 MP, 16 MP, 29 MP area sensors). | Ensuring maximum optical fidelity and precision. |
| Magnification Range | Wide range, typically 0.116x to 3x. | Versatile for imaging different sizes of large objects. |
| Key Advantage | Wide image circle and excellent optical performance (low telecentricity error and distortion). |
TC10M Series (Large Format)
| Feature | Key Specifications | Typical Applications |
| Max Sensor Size | Up to 28 mm diagonal (e.g., APS-C format). | Measurement applications such as flat panel display checks, high-precision measurement of mechanical parts, and semiconductor/electronics inspection. |
| Linescan Support | Optimized for up to 4k line scan cameras. | Industrial inspection where a smaller field of view than the TC16M is sufficient. |
| Resolution | High resolution, compact and robust design. | Suitable for a high-performance, smaller footprint vision system. |
TC12K Series (Ultra-Large Linescan)
Max Sensor Size / Line Scan Support: Designed for sensors up to 62 mm and specifically optimized for 12k line scan cameras.
Magnification Range: Typically in the 0.26x to 0.96x range.
Purpose: Caters to the largest line scan detectors used for ultra-wide-field inspection of flat surfaces.
Common Features
Bi-Telecentric Design
Many of OPTO’s TC series lenses are bi-telecentric (telecentric in both object and image space). This is the gold standard for measurement, as it ensures the principal rays are parallel both entering and exiting the lens, eliminating perspective error and maintaining near-zero distortion and superior magnification constancy.
Low Distortion
They boast exceptionally low distortion (often < 0.05\% typical) for highly accurate measurement.
High Telecentricity
Very low telecentricity error (often < 0.05^{\circ} typical) ensures high accuracy even when imaging thick or slightly displaced objects.
Robust Construction
Simple and robust mechanical designs are standard, making them reliable for demanding industrial environments.