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The item listed here is calibration grade alignment pentaprism made in England by Hilger&Watts It is used for optical metrology applications It is supplied in the original wooden case with one mounting rod precision ground on all six fixturing sides two mounting holes for provided post overall dimensions are 55 x 55mm x 41mm high serial markings are : "A142/31 - 131" A brief explanation comes from Davidson: Two sides of the Penta Prism are 90° to each other with the face of one side acting as the entrance face, and the face of the other side acting as the exit face, or vice versa. Two of the remaining three sides are positioned to reflect light entering the prism 90°, the third side being incidental. The azimuth or horizontal plane is referred to as the insensitive plane. Light may enter the entrance face along this plane as much as ±5° from normal and the exit beam will always be 90° to the entrance beam. the current price for the equivalent Davidson Model D-614-101 Penta Prism is $6,630 details/specs can be found at Davidson link: Everything I list is fully functional All effort is made to accurately describe features and specifications as best I can determine This is one of fixed price listings of optical laboratory components Most items are Newport, Oriel, or Micro-Controle I am liquidating a variety of stages, mounts, posts, holders, optical rails/components, I am NOT in the "business" of selling/reselling these components Photo Sharing and Video Hosting at Photobucket Photo Sharing and Video Hosting at Photobucket Photo Sharing and Video Hosting at Photobucket (please look at our rules and privacy policy) |
bridgette.hayes@machine--tools.com (Bridgette Hayes) for additional information. This email is used for forwarding to newsgroup user.
