JPH1172703A5 - - Google Patents

Info

Publication number
JPH1172703A5
JPH1172703A5 JP1997249747A JP24974797A JPH1172703A5 JP H1172703 A5 JPH1172703 A5 JP H1172703A5 JP 1997249747 A JP1997249747 A JP 1997249747A JP 24974797 A JP24974797 A JP 24974797A JP H1172703 A5 JPH1172703 A5 JP H1172703A5
Authority
JP
Japan
Prior art keywords
lens element
conjugate point
surface facing
convex surface
negative lens
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
JP1997249747A
Other languages
English (en)
Japanese (ja)
Other versions
JP3996981B2 (ja
JPH1172703A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP24974797A priority Critical patent/JP3996981B2/ja
Priority claimed from JP24974797A external-priority patent/JP3996981B2/ja
Publication of JPH1172703A publication Critical patent/JPH1172703A/ja
Publication of JPH1172703A5 publication Critical patent/JPH1172703A5/ja
Application granted granted Critical
Publication of JP3996981B2 publication Critical patent/JP3996981B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP24974797A 1997-08-29 1997-08-29 投射装置 Expired - Fee Related JP3996981B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24974797A JP3996981B2 (ja) 1997-08-29 1997-08-29 投射装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24974797A JP3996981B2 (ja) 1997-08-29 1997-08-29 投射装置

Publications (3)

Publication Number Publication Date
JPH1172703A JPH1172703A (ja) 1999-03-16
JPH1172703A5 true JPH1172703A5 (OSRAM) 2005-02-24
JP3996981B2 JP3996981B2 (ja) 2007-10-24

Family

ID=17197624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24974797A Expired - Fee Related JP3996981B2 (ja) 1997-08-29 1997-08-29 投射装置

Country Status (1)

Country Link
JP (1) JP3996981B2 (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1574890B1 (en) 2004-03-10 2016-06-29 Canon Kabushiki Kaisha Zoom lens and image display apparatus including the zoom lens
JP6780438B2 (ja) 2016-10-20 2020-11-04 セイコーエプソン株式会社 投写用ズームレンズ及び投写型画像表示装置
CN109870750A (zh) * 2019-03-18 2019-06-11 北京信息科技大学 一种仿生人眼自动对焦光学系统

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