Laser collimation

The Collimated Backlight Series is a high performance, uniform, and collimated light source for high precision silhouetting and transmissive applications. Using precision optics, the light is collimated in both the X and Y dimensions. The light exits at a low divergence angle making it perfect for applications requiring high precision measurements when used with a telecentric lens. These lights utilize a full array LED layout with more LEDs per square inch to provide greater intensity and uniformity. The Collimated Backlight is available in White, Red, Green, Blue, and IR with independent color control. Active areas ranging from 1 inch x 1 inch (25 mm x 25mm) to 12 inches x 12 inches (305 mm x 305 mm). Custom sizes up to 3 feet x 3 feet (1 m x 1 m) are available.

The basic setup for a Foucault knife edge test consists of and illuminated pinhole size source, a knife edge, and the mirror or lens being tested. The pinhole source is placed at one center of curvature of a mirror (or say twice the focal distance of a lens), and the knife edge is placed near the image of the pinhole.

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Collimatedbeam

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Collimating lens

This is a Metaphase Classic product. Please confirm availability with your Metaphase Sales Rep at Sales@metaphase-tech.com, before specifying, quoting, or ordering.  We have a variety of current machine vision products that can be found here.

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The knife edge is translated across the optical axis and the image of the light spot on a screen placed behind the lens or mirror is observed. As the knife edge is moved, the position of the light spot on the screen will change in a way that is related to the curvature of the lens or mirror. By measuring the position of the light spot on the screen as the knife edge is moved, it is possible to determine the curvature of the lens or mirror.

DIRECT CONNECTION COMPATIBILITY We offer our lights with many different driver configurations to make the lights compatible with the latest vision cameras. This provides greater flexibility, control, and convenience when integrating Metaphase illumination systems.

A Foucault knife edge test is a method used to measure the curvature of a mirror or lens. It is named after the French physicist Léon Foucault, who developed the technique in the 19th century.