Hitachi
diffraction
gratings
are products
of technology
accumulated
in a span
of over
30 years.
The diffraction
gratings
capable
of analyzing
a variety
of radiations
ranging
from soft
X-Rays
to far
infrared
are now
expanding
their
application
areas
as optical
elements,
indispensable
for spectroscopy.
The
diffraction
gratings
developed
by Hitachi
have been
used in
various
application
areas
and are
now highly
evaluated
as the
world's
foremost
element.
Hitachi's
highly
reputed
precision-ruling
engine
has now
been combined
with laser
interferometric
technology.
This permits
arranging
the groves
to a nanometer
precision!
Our burnishing
technique,
with use
of a diamond
tool,
enables
forming
excellent
grooves,
making
surfaces
far smoother
than vacuum
evaporated
metal
surfaces.
Features:
- From
X-ray
to Infrared,
gratings
can now
be designed
to meet
specific
requirements.
-
The ruling
engine
equipped
with a
highly
sensitive
laser
interferometer
is able
to rule
grating
grooves
with ultra-high
accuracy
and realizes
high-resolution
spectroscopic
instruments.
-
Grating
grooves
having
two or
more different
blaze
angles
can be
combined
on a single
diffraction
grating.
This structure
allows
for broader
wavelength
coverage.
- Coma-type
aberration-corrected
concave
grating
for high
resolution
Seya-Namioka
monochromator.
Plane,
Concave
Aberration-Corrected,
or CUSTOM-designed
diffraction
gratings
with a
choice
of blank
material
and coating. | 
