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Mesopic vision,
sometimes also
called twilight vision, is a
combination of
photopic and
scotopic vision under low-light (but not
necessarily dark) conditions...
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photopic (cone-based) and
scotopic (rod-based) systems, that is, in the
mesopic state: as
intensity dims, the rods take over, and
before color disappears...
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lighting conditions,
varying from
photopic in
brightly lit
conditions through mesopic to
scotopic under low
lighting conditions. When not specified, the luminous...
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mesopic vision in
intermediate conditions (luminance
level 10−3 to 100.5 cd/m2).
Adaptation (eye)
Candela Cone cell
Contrast (vision)
Mesopic vision...
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luminous efficiency functions,
creating a
Unified System of Photometry.
These mesopic visual performance models are
conducted in
laboratory conditions in which...
- elpenor)
displays advanced color discrimination even in dim starlight.
Mesopic vision occurs in
intermediate lighting conditions (luminance
level 10−3...
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experience slight tetrachromacy at low
light intensities,
using their mesopic vision. In
mesopic vision, both cone
cells and rod
cells are active.
While rods typically...
- same
reflectance as an 18% gray card Halonen, Liisa; Bizjak, Grega. "CIE
Mesopic photometry –
implementation for
outdoor lighting" (PDF).
University of...
- and
median (
mesopic)
light levels will be
normal but the
response under high
light level (photopic)
conditions will be absent. The
mesopic level is approximately...
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Shown here is a
pupil of an
adult naturally dilated to 9 mm in
diameter in
mesopic light levels. The
average human eye is not able to
dilate to this extent...
