Product Overview
The PMS-LTC2-40C from POMEAS is a standard telecentric lens with built-in coaxial illumination path for high-precision dimensional measurement and visual inspection. With a resolution of 3 μm and NA 0.1, it keeps magnification constant across the field of view, so dimensions can be measured directly on the image. The built-in beamsplitter works with a coaxial light to evenly illuminate reflective surfaces. C-Mount mount, sensors up to 1/2".
![PMS-LTC2-40C Standard Telecentric Lens]()
Key Features
- Numerical aperture NA 0.1 for bright, high-contrast imaging.
- 3 μm object-side resolution for fine-detail inspection.
- Built-in coaxial beamsplitter path; pair with a coaxial light for reflective surfaces.
- Depth of field that absorbs part-height variation on the line.
- Standard C-Mount mount, integrates with common industrial cameras.
- Supported sensors: 1/2". Customization available on request.
Specifications
| Model | PMS-LTC2-40C |
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| Magnification | 2.0X |
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| Working Distance | 40.4mm |
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| Resolution | 3μm |
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| NA (Numerical Aperture) | 0.1 |
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| Supported Formats | 1/4″ 1.6mm×1.2mm, 1/3″ 2.4mm×1.8mm, 1/2.5″ 2.9mm×2.2mm, 1/2.3″ 3.1mm×2.3mm, 1/2″ 3.2mm×2.4mm |
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| Max. Sensor | 1/2″ |
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| Illumination | Coaxial / external |
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| Mount | C-Mount |
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| Working Temp. | -10°C~+50°C |
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![PMS-LTC2-40C Standard Telecentric Lens - Specifications]()
Typical Applications
Dimensional measurement of machined and molded parts, electronics and connector inspection, glass and sheet-edge inspection, in-line quality control wherever telecentric geometry and stable magnification are required.
Selection Guide
To choose the right model, first compare the smallest feature to inspect with the lens resolution and the camera pixel size; then confirm the working distance available in the machine and the maximum supported sensor size. POMEAS can customize working distance, mount and magnification for your application.
Frequently Asked Questions
What is a coaxial telecentric lens and why use one?
It combines a telecentric lens with a built-in beamsplitter: magnification stays constant while a coaxial light illuminates reflective surfaces along the optical axis, so dimensions do not shift with part position and glossy surfaces image evenly.
Which sensors does this model support?
This model supports sensors up to 1/2". Verify the mount and sensor size of your camera before final selection.
What does the NA of this lens mean for my application?
The numerical aperture of this model is 0.1. NA influences light collection and image contrast; balance it with your lighting setup and the required depth of field.
Can the working distance or mount be customized?
Yes. POMEAS offers customization of working distance, mount and magnification; send your part and camera specifications so the technical team can confirm the solution.
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