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National Stock Number:
6650-01-331-0898
Federal Supply Class:
6650
National Item Identification Number:
013310898
Description:
FILTER,LIGHT,INTERFERENCE
Detail:
A LIGHT TRANSMITTING ITEM CONSISTING OF A TRANSPARENT, FLAT GLASS BODY HAVING TWO PLANE-PARALLEL SURFACES, EITHER WITH ONLY NONABSORBING DIELECTRIC COATINGS OR ABSORBING AND NONABSORBING COATINGS OF A THICKNESS NEARLY EQUIVALENT TO THE WAVELENGTH OF THE TRANSMITTED LIGHT. INTERFERENCE BEGINS AT THE THIN BORDERING SURFACES OF THE COATINGS, THE PENETRATING LIGHT WAVES BEING SUPERIMPOSED ON THE REFLECTED LIGHT WAVES. THE ITEM CAN BE INSTALLED IN VARIOUS OPTICAL INSTURMENTS, TO SERVE AS AN EYE PROTECTING DEVICE.
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Manufacturer Information:
| 112-9100-258 | 23495 | DYNCORP DBA USE CAGE CODE 03543 FOR CATALOGING DIV NORTH AMERICAN PUBLIC SECTOR | | 112-9100-308 | 23495 | DYNCORP DBA USE CAGE CODE 03543 FOR CATALOGING DIV NORTH AMERICAN PUBLIC SECTOR |
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