LENSES AND REFLECTORS

The Glass lenses used in Crouse-Hinds signals were made by Corning Glass, KOPP Glass or GB. They conformed in
transmission and chromaticity to the specifications of the Institute of Traffic Engineers ( ITE ). 8 3/8" diameter and
12" diameter lenses were used for traffic signals. 8 3/8"and 12" diameter as well as 9" and 12" square lenses were
used for pedestrian signals.  The outer surface of the lens is smooth, making cleaning easy. The inner surface
contains the prisms for directing the light. Each lens was designed for its particular purpose. Only the finest optical
glass, true to color and of high transmission was used. They were thoroughly annealed and tested before shipment,
and were fully guaranteed against breakage due to heat of the lamp.
LETTERED PRISMATIC DIFFUSING LENSES
Made by Corning Glass

The lettered prismatic diffusing lens was used as a standard lens in all  Crouse-Hinds signals from 1922 to 1927. These lenses were available well into the
1950's, and were substituted for the standard lens when requested. The lettering was molded in the glass and the letters were painted black. This lens has a
shorter range than the type B or T lens, but gives a somewhat wider angle of light distibution. Due to the wide use of traffic signals, the words "STOP",
"CAUTION" AND "GO" became unnecessary.
Available in 8 3/8"  red ( STOP ), amber ( CAUTION ), and green ( GO ). All three have the Crouse-Hinds cube logo molded in the glass. On the inside rim of
the lens in raised lettering is the name  Corning.
PRISMATIC DIFFUSING LENS
Made by Corning Glass

The prismatic diffusing lens was used as a standard in all Crouse-Hinds signals from 1922 to
1927. These lenses were available well into the 1950's, and were substituted for the standard lens
when requested. This lens has a shorter range than the type B or T lens, but gives a somewhat
wider angle of light distibution.
Available in 8 3/8"  red, amber, green and clear ( for bottom lights). All four have the
Crouse-Hinds cube logo molded in the glass. On the inside rim of the lens in raised lettering is
the name  Corning.
TYPE T COMBINATION LENS
Made by Corning Glass

The type T combination lens came out around 1940
and was designed to meet the candlepower
distribution requirements of the new specifications of
the Institute of Traffic Engineers. This lens when used
with the Crouse-Hinds parabolic glass reflector
exceeded the candlepower requirements of the
specifications. This lens has a combination of directing
and diffusing prisms which direct the light slightly
downward and to the sides and gives a very high
candlepower in the center of the beam. This provided
a bright and positive signal indication under all
conditions. The lower portion of the lens has a special
crescent-shaped set of prisms, which distributes light
downward and to the sides, for pedestrians and
nearby vehicle drivers, regardless of the angle from
which it is seen. This lens was a standard lens for the
DT signals. Available in 8 3/8"  red, amber and
green.All three have the Crouse-Hinds cube logo
molded in the glass. On the inside rim of the lens in
raised lettering is the name  Corning.
TYPE B COMBINATION LENS
Made by Corning Glass

The type B combination lens was furnished as standard
in all Crouse-Hinds signals from 1927 to 1940. At some
points it fell short of the ITE candlepower requirements.
This lens has a combination of directing and diffusing
prisms which direct the light slightly downward and to
the sides. The lower portion of the lens has a special
crescent-shaped set of prisms, which distributes light
downward and to the sides, for pedestrians and nearby
vehicle drivers, regardless of the angle from which it is
seen. The type B lens was used in type T and early D
signals. The type B lens was later available as a substitute
lens. Available in 8 3/8"  red, amber and green. All three
have the Crouse-Hinds cube logo molded in the glass.
On the inside rim of the lens in raised lettering is the
name  Corning.

PEDESTRIAN LENSES
Made by KOPP Glass



ARROW LENSES
Made By KOPP Glass
MORE INFORMATION
WILL BE ADDED SOON.
GLASS LENSES
GLASS REFLECTORS
Crouse-Hinds used several different vendors to supply their glass and aluminum reflectors. Lancaster Lens Company of Lancaster, Ohio and Bausch and Lomb of Rochester,
New York. The glass reflectors had an acid stamp on the face of the reflector identifing the maker. The oldest reflectors used in the type T signals had a "Crouse-Hinds" acid
stamp. It was researched by the Lancaster Glass Corporation that Crouse-Hinds started using reflectors made by Lancaster Lens around October 1, 1935. Lancaster still had
the original print. Lancaster Lens changed it's name around 1950 to Lancaster Glass.

The reflectors used are extremely accurate parabolic reflector made of polished glass, silvered to form the reflecting surface. the silvering it protected by electrolytically
depositing copper over which is placed a backing of baked enamel. The Bausch and Lomb reflectors are painted black and the Lancaster reflectors has an aluminum coating.



ALUMINUM REFLECTORS
High efficiency Alzek finished aluminum reflectors were furnished when specified.