PURPOSE: To obtain a transmissive screen which has a wide directional angle and is superior in hue, by using a resin medium where a diffusing agent is mixed and providing a specific lenticular lens on the face of the observation side.
CONSTITUTION: A lenticular lens, where many lenses 2 whose sections are perfectly round are arranged to satisfy relation P/R<1.7 (R is the radius of the curvature of the lens and P is pitches between lenses), is provided on the face of the observation side of a medium 1 consisting of a methacrylic resin where a diffusing agent (such as an SiO2 powder and glass beads) is mixed, thus forming a transmissive screen. Otherwise, the lenticular lens consisting of said lenses 2 is provided on the observation side of the resin medium 1 where the diffusing agent is not mixed, and a resin medium layer 4 where the diffusing agent is mixed is provided on the opposite side.
YADA YUKIO
INAGAKI KOUICHI
INOUE MASAO
OOGOSHI AKIO
INOUE TAKUJI
KONDOU TAKAHARU
SUGII YASUYOSHI
SONY CORP
| JPS487051U | 1973-01-26 | |||
| JPS488240A | ||||
| JPS4830929A | 1973-04-23 | |||
| JPS4736249B1 |
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