Oct 2007Sill Optics GmbH & Co. KGRequest Info
Telecentric microscopic video lenses for 1-in. CCD cameras offer an NA of up to 0.25 in object space for higher resolution of smaller structures. Available from Sill Optics GmbH & Co. KG in 3×, 5×, 6×, 7× and 8× magnifications and covering camera sizes up to 12 × 12 mm, the lenses are designed to match the maximum resolution of the camera. For example, the 8× lens requires an NA of 0.25 with a maximum resolution of nearly 400 lp/mm in object space, making structures down to 3 μm visible. The interchangeable lenses show minimal distortion in the range of 0.05%, have a working distance from 90 to 100 mm, are object space telecentric for suitable edge detection, and are available with C-mount and a variable iris. Small-band LED illumination from red to green provides optimal results.