ABS

Absorption

AG

As Generated

Al

Aluminum

AOI

Angle of Incidence

AR

Anti-Reflection Coating

ASPH

Asphere

BBAR

Broadband Anti-Reflection Coating

BC

Beam Combiner

BS

Beamsplitter

CA

Clear Aperture (coated)

CC

Concave

CdTe

Cadmium Telluride

CSM

Customer Supplied Mount

Cu

Copper

CT

Center Thickness

CTG

Coating

CX

Convex

CYL

Cylinder

DAR

Dual Wavelength Anti-Reflection Coating

DEG

Degree

DIA

Diameter

DLC

Diamond-Like Coating

DT

Diamond-Turned

EFL

Effective Focal Length

ET

Edge Thickness

ETV

Edge Thickness Variation

FG

Fine Grind

F

Fittings

FL

Focal Length

FS

Fine Shine

GaAs

Gallium Arsenide

Ge

Germanium

ID

Inside Diameter

In

Indium

IRR

Irregularity

LM

Laser Marked

M

Meter

MEN

Meniscus

MM

Millimeter

Mo

Molybdenum

NEG

Negative

OD

Outside Diameter

OFHC

Oxygen Free High Conductivity

OG

Optical Grade

PR

Partial Reflector

PO

Plano

POL

Polarization

POS

Positive

PWR

Power

R

Reflectivity

REFL

Reflector

RWK

Rework

SC

Single Crystal

SD

Scratch-Dig

Si

Silicon

SMTY

Sufficient Material to Yield

SPT

Single Point Turned

T

Transmission

THK

Thickness

UC

Uncoated

VP

View Polished

W

Wedge

WC

Water-Cooled

WD

Working Distance

WL

Wavelength

WDW

Window

WS

Witness Sample

W&L

Width and/or Length

ZnSe

Zinc Selenide

ZnS

Zinc Sulfide

ZnS MS

Zinc Sulfide MultiSpectral