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MIL-L-3891B
LUMINESCENT MATERIAL AND EQUIPMENT (NONRADIOACTIVE)
Year: 1974
Abstract: This specification covers two types of photo-luminescent materials for operational military uses in various forms, shapes, colors, and sizes. Intended Use: Phosphorescent material is used where it is required to remain luminous after the activating source is removed. Such material is intended for applications to be observed for as long as 8 hours, after the observer has become well dark-adapted. It is not suited for uses requiring observation before the observer has been dark-adapted less than 20 minutes. Fluorescent material is intended for nightime applications requiring constant low intensity localized illumination. Its use requires special ultra-violet lighting equipment and practically requires custom-built installation for the specific application. Fluorescent material also is intended for daylight use where greater luminance and contrast is desired. In this case, sunlight furnishes the ultra-violet. Such materials "reflect" more than 100 percent of the incident visible light due to the conversion of ultra-violet to visible light.
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| contributor author | DLA - IS - DLA Troop Support - Industrial Hardware Items of Supply Standardization Code | |
| date accessioned | 2017-09-04T17:06:15Z | |
| date available | 2017-09-04T17:06:15Z | |
| date copyright | 27379 | |
| date issued | 1974 | |
| identifier other | YEKIDAAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;query=autho1216AF679D40527318548F1EFDEC014A/handle/yse/129739 | |
| description abstract | This specification covers two types of photo-luminescent materials for operational military uses in various forms, shapes, colors, and sizes. Intended Use: Phosphorescent material is used where it is required to remain luminous after the activating source is removed. Such material is intended for applications to be observed for as long as 8 hours, after the observer has become well dark-adapted. It is not suited for uses requiring observation before the observer has been dark-adapted less than 20 minutes. Fluorescent material is intended for nightime applications requiring constant low intensity localized illumination. Its use requires special ultra-violet lighting equipment and practically requires custom-built installation for the specific application. Fluorescent material also is intended for daylight use where greater luminance and contrast is desired. In this case, sunlight furnishes the ultra-violet. Such materials "reflect" more than 100 percent of the incident visible light due to the conversion of ultra-violet to visible light. | |
| language | English | |
| title | MIL-L-3891B | num |
| title | LUMINESCENT MATERIAL AND EQUIPMENT (NONRADIOACTIVE) | en |
| type | standard | |
| page | 31 | |
| status | Active | |
| tree | DLA - IS - DLA Troop Support - Industrial Hardware Items of Supply Standardization Code:;1974 | |
| contenttype | fulltext |