OPT-BP20-65-LQVTC Telecentric Lens – Precision Measurement Solution for Machine Vision
Overview of the OPT-BP20-65-LQVTC Telecentric Lens
In Machine Vision systems, the quality of the lens directly determines the accuracy of measurement and inspection processes. For applications requiring extremely low measurement errors, telecentric lenses are the ideal choice thanks to their ability to eliminate perspective distortion and maintain consistent object dimensions even when the working distance varies slightly.
The OPT-BP20-65-LQVTC is a 2X telecentric lens developed by OPT Machine Vision, engineered to minimize perspective errors while delivering ultra-low distortion and highly accurate imaging. Unlike conventional telecentric lenses, this model integrates an Electronic Focus Tunable Lens (EFTL), enabling electronic focal adjustment without mechanical movement. This significantly improves flexibility and efficiency in modern automated inspection systems.
As an authorized Machine Vision solution provider in Vietnam, BeeVision supplies genuine OPT telecentric lenses together with industrial cameras, machine vision lighting, controllers, and accessories to help manufacturers build highly accurate and reliable automated inspection systems.
What Is a Telecentric Lens and how does it work?
A telecentric lens is specially designed so that the chief rays entering the image sensor are nearly parallel to the optical axis. As a result, the image size of an object remains almost unchanged even when the object moves slightly within the allowable working distance.
Compared with conventional lenses, telecentric lenses offer several significant advantages:
- Eliminate perspective distortion.
- Deliver extremely accurate dimensional measurements.
- Reduce measurement errors for precision mechanical components.
- Provide sharp and consistent image quality across the entire field of view.
Telecentric lenses are widely used in dimensional measurement, electronic component inspection, semiconductor manufacturing, precision machining, and industrial automation.
Key Features & Benefits
High Measurement Accuracy
The OPT-BP20-65-LQVTC features less than 0.1% optical distortion, ensuring virtually distortion-free images for high-precision measurement and inspection tasks.
With a 2.0X magnification, it is particularly suitable for inspecting miniature components and applications requiring micron-level measurement accuracy.
Integrated Electronic Focus Tunable Lens
Unlike standard telecentric lenses, the OPT-BP20-65-LQVTC incorporates an Electronic Focus Tunable Lens (EFTL), allowing the focal position to be adjusted electronically without mechanical movement.
This enables:
- Faster focus switching
- Improved automation efficiency
- Easier integration into smart manufacturing systems
Sharp and Stable Imaging
Supporting image sensors up to 1.1 inches, the lens delivers high-resolution images capable of reproducing tiny details, engraved characters, and surface defects with excellent clarity.
Easy System Integration
Featuring a standard C-Mount interface, the lens is compatible with a wide range of industrial cameras used in Machine Vision applications.
Its robust mechanical construction also ensures stable long-term operation in industrial environments.
Detailed Technical Specifications
| Specification | Value |
| Model | OPT-BP20-65-LQVTC |
| Product Type | Telecentric Lens |
| Magnification | 2.0X |
| Working Distance | 65 ± 2 mm |
| Supported Sensor Size | 1.1 inch (Ø18.4 mm) |
| Field of View (FOV) | Ø9.20 mm |
| Aperture | F7.0 – F62 |
| Telecentricity | 0.10° |
| Distortion | <0.1% |
| Resolution | 3.85 μm |
| Image Sharpness (MTF30) | 130 lp/mm |
| Depth of Field (DOF) | 0.14 mm |
| Mount | C-Mount |
| Filter Thread | M35 × 0.5 |
| Dimensions | Ø47 × 151.65 mm |
| Weight | 0.51 kg |
| Spectral Range | 400–1000 nm |
| Operating Temperature | 0°C to +65°C |
| Storage Temperature | -40°C to +85°C |
Real-world applications
Thanks to its multi-angle illumination that highlights 3D structure, the OPT-LVS18045-W arc light is widely used in:
- Electronic component contour positioning: Determining the position, orientation and contour of components on SMT lines.
- Dimensional measurement of metal parts: Measuring sizes and inspecting the profiles of machined parts.
- Surface defect detection: Revealing scratches, dents and burrs on reflective surfaces.
- Curved character reading: Recognizing embossed/engraved characters (OCR) on bottle caps, can bodies and cylindrical components.
Integration with controllers and vision systems
The OPT-BP20-65-LQVTC is designed for seamless integration with C-Mount industrial cameras and can be combined with Machine Vision lighting, controllers, and image processing software to create a complete automated inspection solution.
Its ability to maintain constant magnification while minimizing perspective errors makes it ideal for:
- Precision dimensional measurement
- Object positioning
- Automated visual inspection
- Defect detection
- High-speed production line inspection
To maximize system performance, BeeVision recommends selecting compatible industrial cameras, telecentric lenses, machine vision lighting, and accessories based on each application’s specific requirements.
Our engineering team is ready to assist customers in designing high-precision, reliable, and scalable Machine Vision solutions.
Why Choose BeeVision?
BeeVision is a trusted Machine Vision solution provider in Vietnam, offering:
- Genuine OPT Machine Vision products with certified origin.
- Professional engineering support for selecting cameras, lighting, controllers, and optics.
- Technical consultation, proof-of-concept (POC), and complete system integration.
- Reliable warranty, after-sales support, and nationwide delivery.
Contact BeeVision for consultation and quotations regarding the OPT-BP20-65-LQVTC Telecentric Lens:
Website: https://bee.vision
Email: hive@bee.vision
OPT-BP20-65-LQVTC Mechanical Drawing
The mechanical drawing and mounting dimensions of the OPT-BP20-65-LQVTC Telecentric Lens, provided by OPT Machine Vision, assist engineers in system design, mechanical integration, and installation within Machine Vision applications.