BK Precision 1472B Especificações descarregar pdf (Página 147)

MIL-STD-1472E

5.10.4.5 Coding. For television viewing, symbol-or pattern-coding should be used in

preference to color-coding.

5.10.4.6 Lettering. Letters, numbers, and important details that must be viewed by television

shall be light against a dark background. Glazed or reflecting surfaces shall be avoided.

5.10.4.7 Stereo viewing. The two images produced by a stereosmpic periscope shall not differ

more than 2% in magnification or 0.50 prism d.iopterin vertical imbalance. Horizontal imbalance shall

be not greater than 0.50 prism diopter so as not to be fatiguing. Light transmittance of the two optical

paths should be within 10% of each other.

5.10.5 Illumination.

5.10.5.1 Reflected li~ht, Unless otherwise specified by the procuring activity, reflected light

from remote work areas, as measured at the operator’s work station (in direct viewing), shall conform

to the requirements of this standard.

5.10.5.2 Threshold viewing. Monochromatic lighting should be provided when viewing

conditions are near threshold, when high magnification powers are rquiti or when the operator is

required to view the work

at high angles of incidence through refractive materials.

,;.;

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BK Precision 1472B Especificações Página 147