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Broad Band Anti-Reflection (BBAR)
Broad band Anti-Reflective (BBAR) Coatings
are applied to glass substrates and filters to reduce the
interference of surrounding light on the display. All transparent
surfaces reflect some light back in the direction of the
source. BBAR Coatings possess light create a phase shift
that cancels incident light; thus, preventing the refraction
of the wave path at the boundary between the source and
the reception of light. Visual accuracy is consequently
enhanced. Because accurate visual indicators are essential
in navigation, we have developed coatings with less than
.1% integrated spectral reflections at a 15-degree angle
of incident through the visible range. This break- through
has enabled us to greatly reduce the overall stack reflectance
of Avionics Flat Panel Display.
QCI has exerted tremendous time and
energy to bring forth coatings that exceed durability standards
in additon to meeting industrial requirements. We also take
pride in producing coatings with excellent environmental
characteristics. Our BBAR coating (specifically #BBAR
1020) is designed to meet the requirements of MIL-C-14806A.
It is able to withstand an eraser rub test of 200 complete
cycles (10 times that required by specification) at 2.0
to 2.5 lb. The eraser will agree with MIL-E-12397.
All products abstain from any peeling, cracking or delamination
and will not change in spectral characteristics. Coating
#BBAR 1020 shall withstand exposure for a period of 48 hours
to an atmosphere having a relative humidity between 95 and
100% at 160 +/- degrees F. Using tape conformingto MIL-M-13508C
to test adhesion, no part of the coating will be removed
when the tape is bounded and then peeled off. When exposed
to a salt fog atmosphere for 48 hours at 95 degrees F, the
coating will withstand exposure without changing spectral
characteristics, per MIL-STD-810B method 509.
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SUPERIOR REFLECTION REDUCING COATING
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BBAR 1020
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Optical Characteristics
Spectral reflection shall not exceed the
following:
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Reflectance, % Maximum
for Angles of Incidence |
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Minimum
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| Wavelength
(nm) |
Transmission
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| 425-700
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87% |
| 440-675
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89% |
Absorption and diffuse reflection shall not exceed
1.0 % maximum average loss per surface.
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WAVELENGTH - NANOMETERS
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Description: QCI coating
# BBAR 1020 is used on materials with a refractive
index between 1.48 and 1.55. It is designed for
use on Aircraft Instruments, CRT Contrast Enhancement
filters, and Flat Panel Displays. It meets the requirements
of both MIL-C-14806A and AMS2521A. It is a durable
coating, able to withstand an eraser rub test of
200 complete cycles (10 times that required by specification)
at 2.0 to 2.5 pounds and show no evidence of peeling,
flaking, crazing, cracking or delamination and will
not change in spectral characteristics. Environmental
Characteristics: Humidity: The coating
shall withstand exposure for a period of 48 hours
to an atmosphere having a relative humidity between
95 and 100% at 160 +/- 4 degrees F. Abrasion
Resistance: The coating shall not be damaged
by an eraser rubbed across the same path, point
to point, 200 complete cycles. The force applied
by the eraser shall be 2.0 - 2.5 pounds continuously.
The eraser will conform to MIL-E-12397. Adhesion:
Tape conforming to MIL-M-13508C shall be used. No
part of the coating shall be removed when tape is
pressed against the coated surface and then removed.
Salt Fog: Per MIL-STD-810B method 509, the
coating shall withstand exposure to a salt fog atmosphere
for 48 hours at 95 degrees F without changing spectral
characteristics. Ordering Information When
placing an order or request for quotation, please
provide the following information: 1. Application
requirements and viewing angle. 2. QCI coating number
and if applicable, any variation in spectral requirements
from those given in this data sheet. 3. The substrate
material being used, dimensions and quantity required.
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HIGH ANGLE OF INCIDENCE REFLECTION REDUCING
COATING
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BBAR 44/52/60
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Optical Characteristics
Spectral reflection shall not exceed the
following:
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Reflectance, % Maximum
for Angles of Incidence |
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Minimum
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| Wavelength
(nm) |
Transmission
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| 425-700
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87% |
| 440-675
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89% |
Absorption and diffuse reflection shall not exceed
1.0 % maximum average loss per surface.
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WAVELENGTH - NANOMETERS
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Description: QCI coating
# BBAR 44/52/60 is used on materials with a refractive
index between 1.48 and 1.55. It is designed for
use on AircraftInstruments, Head Up Display systems,
and Beamsplitters. It is a durable coating, able
to withstand an eraser rub test of 200 complete
cycles (10 times that required by specification)
at 2.0 to 2.5 pounds and show no evidence of peeling,
flaking, crazing, cracking or delamination and will
not change in spectral characteristics. Environmental
Characteristics: Humidity: The coating
shall withstand exposure for a period of 48 hours
to an atmosphere having a relative humidity between
95 nd 100% at 160 +/- 4 degrees F. Abrasion Resistance:
The coating shall not be damaged by an eraser rubbed
across the same path, point to point, 200 omplete
cycles. The force applied bythe eraser shall be
2.0 - 2.5 pounds continuously. The eraser will conform
to MIL-E-12397. Salt Fog: Per MIL-STD-810B
method 509, the coating shall withstand exposure
to a salt fog atmosphere for 48 hours at 95 degrees
F without changing spectral characteristics.
Ordering Information When placing an order or
request for quotation, please provide the following
information: 1. Application requirements and viewing
angle. 2. QCI coating number and if applicable,
any variation in spectral requirements from those
given in this data sheet. 3.The substrate material
being used, dimensions and quantity required.
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