Beam Profile Tech Tip:
Total Optical Path Length with Beam Splitters on 4.5 mm Recessed CCD Cameras

Often we get requests for the Total Optical Path Length when beam splitters are used on our line of 4.5 mm recessed CCD cameras.

For a common setup using SPZ17015 1st Wedge Beam Splitter and either one or two SPZ17026 2nd Wedge Beam Splitters here are the Total Optical Path Length and a couple of pictures showing the layout. Length 2 (From first beam splitter to second beam splitter) Length 3 (From second beam splitter to third beam splitter) Total Optical Path Length with 2 beam splitters Total Optical Path Length with 3 beam splitters.

Description  Center Path
Length 1 (From camera to first beam splitter) 1.857 in. (47.16 mm)
Length 2 (From first beam splitter to second beam splitter) 1.259 in. (31.98 mm)
Length 3 (From second beam splitter to third beam splitter) 1.335 in. (33.91 mm)
Total Optical Path Length with 2 beam splitters 3.116 in. (79.14 mm)
Total Optical Path Length with 3 beam splitters 4.451 in. (113.05 mm)

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