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National Stock Number:
6650-01-337-4365
Federal Supply Class:
6650
National Item Identification Number:
013374365
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:
| 13079098 | 34860 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| III MATERIAL | GLASS | | PROPRIETARY CHARACTERISTICS | PACS | | OVERALL LENGTH | 3.605 INCHES MINIMUM AND 3.615 INCHES MAXIMUM | | OVERALL WIDTH | 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM | | SURFACE PARALLELISM | 5.0 MINUTES |
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