ILLUMINATOR, PROJECTION DISPLAY APPARATUS AND ITS DRIVING METHOD

Japanese Patent JP2004361500

A

To provide an illuminator provided with an adaptive light control element and, moreover, realize fine control of light quantity on the low brightness side in the illuminator.

In the illuminator, the light control means 30 for controlling the light quantity of outgoing light from a light source 10 is arranged on the front surface of the light source 10. In such a case, the light control means 30 is arranged on the optical axis Y of the light in such a manner that the light control is performed preferentially from the region close to the optical axis Y and line-symmetrically or axis-symmetrically for the light axis Y.

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HOSAKA HIROYUKI

JP2003156872A

December 24, 2004

June 02, 2003

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SEIKO EPSON CORP

G02F1/13; F21V7/22; G03B21/00; G03B21/14; G09G3/20; G09G3/34; G09G3/36; H04N9/31; F21Y101/00; (IPC1-7): G03B21/14; F21V7/22; G02F1/13; G03B21/00; G09G3/20; G09G3/34; G09G3/36; H04N9/31

Kazuya Nishi
Masatake Shiga
Masakazu Aoyama

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