Vintage optical flat from Davidson Optronics. Good condition with slight chip as shown. Comes in original wooden case. Model number D 617-6. Flat measures 6 Diameter. Case measures about 10″x10″. Great collector’s piece! From Davidson Optronics website. Basic and economical for flatness testing. Certification of accuracy traceable to NIST. Optical flats up to 12 inch (300mm) diameter. Check gage blocks or lapped and polished surfaces. Easily measure surface flatness down to /20 at 632.8nm. Optical Flats are basic for testing flatness because they are easy to use and very accurate. Davidson Precision Optical Flats enable non-technical workers to measure from 0.000 1 inch (2.54 m) down to 0.000 001 inch (0.025 m) without special skills or auxiliary equipment, except for a monochromatic light source. Optical Flats are versatile for measuring surface flatness of polished areas and determining variations between work surfaces and the surface of the optical flat. They are valuable for inspecting gage blocks for wear and accuracy. Davidson Precision Optical Flats are produced from high quality Pyrex or fused silica (Quartz). Blanks are inspected and chosen prior to grinding to eliminate those with stains, defects, or lack of clarity. Blanks are selected to be thick in proportion to diameter to insure rigidity, then accurately ground and polished to specified flatness limits and then completed by having the edges ground and chamfered so as to be handled safely. The item “DAVIDSON OPTRONICS 6 Optical Flat PYREX D617-6 VINTAGE! Wooden case” is in sale since Monday, May 09, 2016. This item is in the category “Business & Industrial\Healthcare, Lab & Life Science\Lab Equipment\Lab Lasers & Photonics”. The seller is “bunnysinister” and is located in Studio City, California. This item can be shipped to United States, United Kingdom, Mexico, Germany, France, Australia, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Sweden, South Korea, Indonesia, Belgium, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Austria, Israel, New Zealand, Singapore, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Bahrain, Croatia, Malaysia, Panama, Switzerland, Jamaica.
- Brand: DAVIDSON OPTRONICS
- Model: D 617-6
- Country/Region of Manufacture: United States
- MPN: N/A
Posted in vintage | 
Comments Off | September 27th, 2017
