最終更新日
：2023/09/04
iris diaphragm
noun
An
adjustable
diaphragm
by
which
the
diameter
of
an
approximately
circular
opening
may
be
controlled,
as
for
regulating
the
aperture
of
a
lens;
it
consists
of
a
number
of
movable
thin
curved
plates
fastened
at
regular
intervals
around
the
inside
of
a
ring,
the
positions
of
which
are
simultaneously
adjusted
by
a
single
knob
on
the
outside
of
the
lens.
It
is
used
in
cameras
and
microscopes.
意味（1）
An
adjustable
diaphragm
by
which
the
diameter
of
an
approximately
circular
opening
may
be
controlled,
as
for
regulating
the
aperture
of
a
lens;
it
consists
of
a
number
of
movable
thin
curved
plates
fastened
at
regular
intervals
around
the
inside
of
a
ring,
the
positions
of
which
are
simultaneously
adjusted
by
a
single
knob
on
the
outside
of
the
lens.
It
is
used
in
cameras
and
microscopes.
復習用の問題
正解を見る
An adjustable diaphragm by which the diameter of an approximately circular opening may be controlled, as for regulating the aperture of a lens; it consists of a number of movable thin curved plates fastened at regular intervals around the inside of a ring, the positions of which are simultaneously adjusted by a single knob on the outside of the lens. It is used in cameras and microscopes.
正解を見る
The microscope has an adjustable iris diaphragm.
English Dictionary
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