发明名称 |
DEVICE TO DISPLAY VISUAL INFORMATION |
摘要 |
FIELD: information displaying equipment. SUBSTANCE: device to display visual information includes cathode-ray tube and projection lens incorporating seven elements. Trapezoidal prism is located between cathode-ray tube and projection lens with input face of prism oriented at acute angle with screen of cathode-ray tube. First element of projection lens comes in the form of inclined positive meniscus facing cathode-ray tube with concavity. Second element is biconvex, linearly decentralized and faces cathode-ray tube with more convex surface. Third element is plane-convex, cylindrical and faces cathode-ray tube with convex surface. Fourth element presents positive meniscus facing cathode-ray tube with convex surface. Fifth element is negative meniscus facing cathode-ray tube with concavity. Sixth element comes in the form of positive meniscus facing cathode-ray tube with concave surface. Seventh element is biconvex. EFFECT: enhanced quality of display of information picture thanks to compensation for distortions introduced by hologram optical elements. 1 dwg |
申请公布号 |
RU2226292(C1) |
申请公布日期 |
2004.03.27 |
申请号 |
RU20020130082 |
申请日期 |
2002.11.05 |
申请人 |
"EHLEKTROAVTOMATIKA" - DOCHERNEE PREDPRIJATIE FEDEFEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "SANKT-PETERBURGSKOE OPYTNO-KONSTRUKTORSKOE BJURORAL'NOGO GOSUDARSTVENNOGO UNITARNOGO PREDPRIJATIJA "ROSSIJSKAJA SAMOLETOSTROITEL'NAJA KORPORATSIJA;FEDERAL NOE GUP SANKT PETERBUR |
发明人 |
GAN M.A.;PARAMONOV P.P.;EHFROS A.I.;BARMICHEVA G.V. |
分类号 |
G02B27/18;G02B27/00;G02B27/01;H04N5/74 |
主分类号 |
G02B27/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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