Resources

STANDARD GEOMETRIC DIMENSIONING
AND TOLERANCING ( GD & T )

Unless otherwise specified on your drawing(s), these tolerances will be applied.

Please note that our process capabilities exceed these tolerances.

1.PLATE (NOT POLISHED) LENGTH:
WIDTH:
THKS:
±.012″
±.012″
±.008″
(±.30mm)
(±.30mm)
(±.20mm)
2.DISK (NOT POLISHED) DIAMETER:
THKS:
±.012″
±.008″
(±.30mm)
(±.20mm)
3.WINDOW/VIEWPORT LENGTH:
WIDTH:
DIAMETER:
THKS:
±.008″
±.008″
±.008″
±.004″
(±.20mm)
(±.20mm)
(±.20mm)
(±.10mm)
SURFACE QUALITY – MIL-SPEC-PRF-13830B 80/50   (See Scratch / Dig Specifications)
BEVEL: <0.030″ (<.762mm)
MAXIMUM CHIP: .020″ (0.50mm)

 

STANDARD SPECIFICATIONS (UNLESS OTHERWISE SPECIFIED):

QUARTZ AND GLASS ARE CLEANED TO CLASS 4 (COSMETIC ONLY). UPON REQUEST, CLASS 3 TO CLASS 1 IS AVAILABLE.

MARK OPTICS WILL USE FINE DIAMONDS FOR MACHINED SURFACES UNLESS OTHER-WISE REQUESTED.

MEGASONIC AND ULTRASONIC CLEANING IS AVAILABLE UPON REQUEST.

D
/VVV N6 32vD .8µm Diamond finish (32µ”)
G
/VVV N5 16vD .4µm Diamond Finish (16µ”)
MP
/VVV N4 9vG .2 µm Ground Finish (9µ”)
FP
/VVVV N1 1vMP .025 µm Ground & Polish Finish (1µm”)
LP
/VVVV N2 2vFP .05 µm Flame Polish Finish (2µ”)
 
/VVVV vLP 5 Å Laser Polish

*** OTHER SURFACE FINISHES AVAILABLE UPON REQUEST ***