LIGHT CONTROL APPARATUS FOR AN IMAGE SENSING OPTICAL DEVICE
First Claim
1. A light control apparatus for an image sensing device, disposed on a light path to an image sensor, for adjusting an amount of light incident on the image sensor,the light control apparatus comprising:
- a Guest-Host LCD panel applied no polarizing film; and
a control unit, when taking multiple frames in series, for reducing time to take the whole multiple frames by driving voltages which are applied to respective pixels of the Guest-Host LCD panel, to be increased at least,wherein;
the Guest-Host LCD panel has a plurality of pixels forming closed curves or boundaries on a plane, which are electrically driven individually,the pixels have uniform light transmittance throughout the entire azimuth of the closed curves or boundaries with an origin.
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Accused Products
Abstract
An apparatus for controlling the quantity of light incident on an image sensor by controlling size or shape of a diaphragm and also by adjusting light transmittance of the diaphragm is provided. The light control apparatus is disposed on the light path of the image sensing device and controls a quantity of light incident on the image sensor. The light control apparatus includes a Guest-Host LCD panel applied no polarizing film and a control unit for reducing the time to take multi-frame detection by driving voltages which are applied to respective pixels of the Guest-Host LCD panel, to be increased at least when taking multiple frames in series. The Guest-Host LCD panel has a plurality of pixels forming closed curves or boundaries on a plane, which are electrically driven individually. Also, the pixels have uniform light transmittance throughout the entire azimuth of the closed curves or boundaries with an origin.
26 Citations
11 Claims
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1. A light control apparatus for an image sensing device, disposed on a light path to an image sensor, for adjusting an amount of light incident on the image sensor,
the light control apparatus comprising: -
a Guest-Host LCD panel applied no polarizing film; and a control unit, when taking multiple frames in series, for reducing time to take the whole multiple frames by driving voltages which are applied to respective pixels of the Guest-Host LCD panel, to be increased at least, wherein; the Guest-Host LCD panel has a plurality of pixels forming closed curves or boundaries on a plane, which are electrically driven individually, the pixels have uniform light transmittance throughout the entire azimuth of the closed curves or boundaries with an origin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification