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National Stock Number:
6650-01-438-1537
Federal Supply Class:
6650
National Item Identification Number:
014381537
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:
| 1340PD5002 | 72314 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. | | NG9-.748 | 96721 | OBRYAN GLASS CORP. DBA GRAY GLASS DIV GRAY GLASS |
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Techincal Specification:
| III MATERIAL | GLASS | | PROPRIETARY CHARACTERISTICS | PACS | | SPECIAL FEATURES | FILTER MATERIAL: NG4; 0.748 IN. DIA.; 1.5 MM THICK. | | SPECIFIC USE | NEUTRAL DENSITY |
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