JPH0323896B2 - - Google Patents

Info

Publication number
JPH0323896B2
JPH0323896B2 JP54143971A JP14397179A JPH0323896B2 JP H0323896 B2 JPH0323896 B2 JP H0323896B2 JP 54143971 A JP54143971 A JP 54143971A JP 14397179 A JP14397179 A JP 14397179A JP H0323896 B2 JPH0323896 B2 JP H0323896B2
Authority
JP
Japan
Prior art keywords
prism
image
section
images
slopes
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.)
Expired - Lifetime
Application number
JP54143971A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5667822A (en
Inventor
Susumu Matsumura
Takashi Suzuki
Kazuya Matsumoto
Kikuo Momyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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 by Canon Inc filed Critical Canon Inc
Priority to JP14397179A priority Critical patent/JPS5667822A/ja
Priority to DE19803041969 priority patent/DE3041969A1/de
Priority to GB8035647A priority patent/GB2065919B/en
Publication of JPS5667822A publication Critical patent/JPS5667822A/ja
Publication of JPH0323896B2 publication Critical patent/JPH0323896B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Viewfinders (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
JP14397179A 1979-11-07 1979-11-07 Focal diaphragm Granted JPS5667822A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14397179A JPS5667822A (en) 1979-11-07 1979-11-07 Focal diaphragm
DE19803041969 DE3041969A1 (de) 1979-11-07 1980-11-06 Einstellmattscheibe
GB8035647A GB2065919B (en) 1979-11-07 1980-11-06 Focussing screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14397179A JPS5667822A (en) 1979-11-07 1979-11-07 Focal diaphragm

Publications (2)

Publication Number Publication Date
JPS5667822A JPS5667822A (en) 1981-06-08
JPH0323896B2 true JPH0323896B2 (enrdf_load_stackoverflow) 1991-03-29

Family

ID=15351311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14397179A Granted JPS5667822A (en) 1979-11-07 1979-11-07 Focal diaphragm

Country Status (1)

Country Link
JP (1) JPS5667822A (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816220A (ja) * 1981-07-22 1983-01-29 Olympus Optical Co Ltd 焦点板
JPS58117511A (ja) * 1981-12-30 1983-07-13 Fujitsu Ltd 回折格子
JP2005196930A (ja) * 2003-12-12 2005-07-21 Konica Minolta Opto Inc 回折光学素子及び光ピックアップ装置
JP4587172B2 (ja) * 2005-04-01 2010-11-24 キヤノン株式会社 回折光学素子、回折光学素子の製造方法、及び回折光学素子成形用金型の製造方法
WO2019049990A1 (ja) 2017-09-08 2019-03-14 大日本印刷株式会社 光変調素子および情報記録媒体
JP6909438B2 (ja) * 2017-09-08 2021-07-28 大日本印刷株式会社 光変調素子および情報記録媒体
JP7263702B2 (ja) * 2018-06-14 2023-04-25 大日本印刷株式会社 光変調素子および情報記録媒体

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829499B2 (ja) * 1975-07-28 1983-06-23 キヤノン株式会社 シヨウテンアワセソウチ

Also Published As

Publication number Publication date
JPS5667822A (en) 1981-06-08

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