1.2.2
Standard Square and Large Rectangular caps are available with eight distinct lighting types. Each lighting segment can be configured with a different lighting type. See Section 1.4 for luminance by lighting type.
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Figure 1.2.2-A Lighting Types |
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| Display Type | Description | Available Colors See Section 1.3 |
Non-Energized | Energized |
| DEADFACE DISPLAYS: | ||||
| Type S | Type S displays are sunlight readable per MIL-PRF-22885/108 and have an opaque black background with indiscernible legends until illuminated. See Section 1.3 for specifics on sunlight readability contrast ratios. Contrast ratios are not applicable for a cap with a mixture of Type S and non-Type S lighting segments. | All |
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| Type H | Type H displays are identical to Type S displays, however sunlight readability contrast ratios do not apply. Type S and Type H cannot be combined on the same cap. | All |
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| BACKGROUND ILLUMINATING DISPLAYS: | ||||
| Type B | Type B displays have a black legend on an obscure black background. When illuminated, the legend remains black and the background appears in color. Sunlight readability contrast requirements do not apply. | All |
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| Type A | Type A displays have always visible white legends on an obscure black background. When illuminated, the background appears in color. | All |
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| Type W | The Type W displays have visible black legends on a white translucent background. When illuminated the legend remains black and the background illuminates in color. Display Type W cannot be combined with another Display Type on the same cap. | All except Cyan, NVIS Red, and Alt NVIS Red |
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| VISIBLE LEGEND DISPLAYS: | ||||
| Type D | Type D displays have visible white legends on an opaque black background. When illuminated, the legends light in color. | All except Cyan, NVIS Red, and Alt NVIS Red |
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| Type N | Type N displays have visible white legends and are always visible in any ambient light except darkened conditions. When energized, the legends light in color at a consistent low luminance level. Type N displays are not designed to be dimmed. | White, Red, NVIS Green A, NVIS green B, and NVIS White. |
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| OTHER DISPLAYS | ||||
| Type X | Type X displays have always visible white opaque lettering which does not illuminate, and the cap does not contain internal electronics. |
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