JPS63125802U - - Google Patents

Info

Publication number
JPS63125802U
JPS63125802U JP1741987U JP1741987U JPS63125802U JP S63125802 U JPS63125802 U JP S63125802U JP 1741987 U JP1741987 U JP 1741987U JP 1741987 U JP1741987 U JP 1741987U JP S63125802 U JPS63125802 U JP S63125802U
Authority
JP
Japan
Prior art keywords
lens
step surface
fresnel lens
light
view
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1741987U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0637362Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987017419U priority Critical patent/JPH0637362Y2/ja
Publication of JPS63125802U publication Critical patent/JPS63125802U/ja
Application granted granted Critical
Publication of JPH0637362Y2 publication Critical patent/JPH0637362Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

JP1987017419U 1987-02-09 1987-02-09 液晶プロジェクタ Expired - Lifetime JPH0637362Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987017419U JPH0637362Y2 (ja) 1987-02-09 1987-02-09 液晶プロジェクタ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987017419U JPH0637362Y2 (ja) 1987-02-09 1987-02-09 液晶プロジェクタ

Publications (2)

Publication Number Publication Date
JPS63125802U true JPS63125802U (US20080293856A1-20081127-C00150.png) 1988-08-17
JPH0637362Y2 JPH0637362Y2 (ja) 1994-09-28

Family

ID=30810163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987017419U Expired - Lifetime JPH0637362Y2 (ja) 1987-02-09 1987-02-09 液晶プロジェクタ

Country Status (1)

Country Link
JP (1) JPH0637362Y2 (US20080293856A1-20081127-C00150.png)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3784282A (en) * 1971-03-05 1974-01-08 Hitachi Ltd Correcting lens used to form fluorescent screens of colour television receiving tubes
JPS4922770A (US20080293856A1-20081127-C00150.png) * 1972-06-22 1974-02-28
JPS52143847A (en) * 1976-05-26 1977-11-30 Mitsubishi Electric Corp Optical lens
JPS5336250A (en) * 1976-09-16 1978-04-04 Toshiba Corp Fresnel lens
JPS5818201U (ja) * 1981-07-29 1983-02-04 日本電気ホームエレクトロニクス株式会社 フレネルレンズ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3784282A (en) * 1971-03-05 1974-01-08 Hitachi Ltd Correcting lens used to form fluorescent screens of colour television receiving tubes
JPS4922770A (US20080293856A1-20081127-C00150.png) * 1972-06-22 1974-02-28
JPS52143847A (en) * 1976-05-26 1977-11-30 Mitsubishi Electric Corp Optical lens
JPS5336250A (en) * 1976-09-16 1978-04-04 Toshiba Corp Fresnel lens
JPS5818201U (ja) * 1981-07-29 1983-02-04 日本電気ホームエレクトロニクス株式会社 フレネルレンズ

Also Published As

Publication number Publication date
JPH0637362Y2 (ja) 1994-09-28

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