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> Davidson optronics d-613 90 degree prism carrying case
Davidson optronics d-613 90 degree prism carrying case
* Dual-purpose optical square for great flexibility
* Kinematic base provides two-plane adjustment
* Integral safety guard protects polished surfaces
* Certification of accuracy traceable to National Institute of Standards and Technology
As shown in the above sketch, the internal 90 angle, when using this instrument as a Porro prism, permits viewing the image through the hypotenuse. The Model D-613 aids in quickly positioning two autocollimators at 90 to each other by utilizing the precise right angle surfaces.
Aluminum with protective overcoat per MIL-M-13508
Ethafoam lined Finished Hardwood
Please check out my store for other optical instruments.
