Megapixel 7X Macro Zoom Telecentric Lens

Megapixel 7X Macro Zoom Telecentric Lens


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Product Description

This high performance lens incorporates to design functions. It operates both as a 7X macro zoom and as a telecentric lens within the zoom range of 0.25x – 0.5X. It provide excellent brightness throughout the zoom range, maintaining 70% illumination at the center and corners.

This lens is ideal for cameras with image arrays of up to 5 megapixels and up to 1/1.1″ sensor size.

Zoom Ratio .07x-0.5x
Working Distance 182-577mm
Max. Magnification 47.65 – 106.26mm
Max. Aperture F4.2
Control Man. Iris, Focus, & Zoom
Mount C-Mount
Filter Size M62x0.75mm

About Telecentric Lenses

In machine vision systems requiring accurate measurements an orthonormal view of the object (i.e. with no object sides imaging) is needed so that correct linear measurements may be performed. Furthermore, many mechanical parts cannot be precisely positioned (i.e. because of vibrations) or a measurement must be performed at different depths or, even worse, the object thickness (and therefore the object surface position) may vary; nevertheless, software engineers do need a perfect correlation between imaged and real dimensions.

On the left is an image of an internal spline on a cylindrical object taken with a telecentric lens (top) and the same object viewed by an ordinary lens (bottom). On the right an image of two identical machine screws set 100 mm apart, taken with a telecentric lens (top) and with an ordinary lens (bottom).

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