Telecentric lens

The LCM-TELECENTRIC series for 2/3” sensors are Bi-Telecentric lenses that are designed for accurate measurement applications. Its proprietary features can recognize the characteristics of integrated circuits, glass, LCD panels, etc., in order to facilitate automated high-speed operations. The series has multiple magnifications and working distances to assure the right field of view can be met for each application.

Coaxial light input option

Most telecentric lenses, with a magnification of 0.5x or higher, have the option for a coaxial light input. If the part number starts with VA-LCM-TC-1, the lens has a coaxial light input, while if it starts with VA-LCM-TC-0, the lens has no coaxial light input.

The coaxial light input is ideal for illuminating flat shiny surfaces, like metal and printed circuit boards. To use the coaxial light input, we recommend our LED spot VA-SLC-8MM-W-12V.

Coaxial Light Input and Hotspots

Using a coaxial light input with this lens can potentially introduce a hotspot on the image. This hotspot is caused by the direct reflection of light from the lens's internal prism. The severity of the hotspot can vary depending on factors such as the lens design, the light source used, and the reflection on the application. While this may not be a significant issue for some applications, it could impact image quality in others, particularly those requiring high dynamic range or low-noise images.