TXT
묘사:
Optical Instrument Lens
MRC:
The length of a straight line which passes through the center of a circular figure or body,and terminates at the circumference.ABMZ
Diameter:
1.900 inches
MRC:
A measurement of the axial thickness of an item,in distinction from length or width.BMLY
Axial Thickness:
0.158 inches and 0.472 inches
MRC:
An overall measurement of the smallest dimension through the center of the outer surfaces of a compound lens,in distinction from length or width.BMMN
Compound Lensaxial Thickness:
0.630 inches
MRC:
A measurement of the smallest dimension across the edge of a compound lens from one surface to the other,in distinction from length or width.BMMP
Compound Lens Edge Thickness:
0.562 inches
MRC:
A measurement of the longest dimension from the center of a lens to either of its focal points,in distinction from width.BMMS
Equivalent Focal Length:
13.161 inches
MRC:
A measurement of the longest reciprocal dimension from the back surface of the lens to the secondary focal point,in distinction from width.BMMT
Back Focal Length:
12.454 inches
MRC:
An indication of the ratio of the speed of light in the first medium to its speed in the second medium.BMMX
Refraction Index:
1.5725 and 1.5125
MRC:
The fixed angle of refraction of the abbe prism.BMMZ
Abbe Constant:
42.500 and 60.500
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of a compound lens.BMSC
Compound Lens Style:
Doublet
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of an individual lens.BMSD
Individual Lens Style:
Meniscus diverging and meniscus converging
MRC:
The radius of the left surface of the element.CTKW
Element Left Surface Radius:
3.661 inches
MRC:
The radius of the right surface of the element.CTKX
Element Right Surface Radius:
1.705 inches
MRC:
The element,compound,or mixture of which an item is fabricated,excluding any surface treatment.MATL
Material:
Glass, optical, mil-g-174, class 1, grade b
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Glass, optical, mil-g-174, class 1, grade b
MRC:
The justification for the assignment of a federal supply class /fsc/ to an item based on the classification of the next higher classifiable assembly.ZZZV
Fsc Application Data:
Periscope, integrated with fire control equipment
