MIL-DTL-13455E
TABLE I. Transmission results - Continued.
Wavelength,
Rod visibility Cone visibility Transmission
millimicrons
factor, R
factor, C
T%
RxT
CxT
740
-
.0006
-
-
-
750
-
.0003
-
-
-
760
-
.0001
-
-
-
Total
11 Max.
90 Min.
3.4.2 Reflection. The light filter shall reflect not more than 15% of the light directed to it
when placed in light conforming to standard illuminant C (see 4.5.3.4).
3.4.3 Weathering. The light filter shall meet the requirements of 3.4.1.1 after being
subjected to accelerated weathering (see 4.5.3.5).
3.5 Identification marking. Identification marking shall include, as a minimum, the
following information permanently marked on the exterior of the light filter (see 4.3):
a. Manufacturer's identification including the commercial and Government entity
(cage)
b. National stock number
3.6 Workmanship. Light filters shall be free from scratches, sharp edges, or cracks and
any defects which may affect their optical characteristics or appearance. Dimensions shall be
within specified limits shown on applicable drawings, and surfaces shall be of specified finish and
without blemish (see 4.3).
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.3).
b. Conformance inspection (see 4.4).
1. Examination
2. Tests.
6
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