JPS6330614B2 - - Google Patents

Info

Publication number
JPS6330614B2
JPS6330614B2 JP57002932A JP293282A JPS6330614B2 JP S6330614 B2 JPS6330614 B2 JP S6330614B2 JP 57002932 A JP57002932 A JP 57002932A JP 293282 A JP293282 A JP 293282A JP S6330614 B2 JPS6330614 B2 JP S6330614B2
Authority
JP
Japan
Prior art keywords
prisms
inclination angles
prism
split
small
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
Application number
JP57002932A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58120230A (ja
Inventor
Harumi Aoki
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP293282A priority Critical patent/JPS58120230A/ja
Publication of JPS58120230A publication Critical patent/JPS58120230A/ja
Publication of JPS6330614B2 publication Critical patent/JPS6330614B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18—Focusing aids
    • G03B13/24—Focusing screens
    • G03B13/28—Image-splitting devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Viewfinders (AREA)
JP293282A 1982-01-11 1982-01-11 カメラの焦点板 Granted JPS58120230A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP293282A JPS58120230A (ja) 1982-01-11 1982-01-11 カメラの焦点板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP293282A JPS58120230A (ja) 1982-01-11 1982-01-11 カメラの焦点板

Publications (2)

Publication Number Publication Date
JPS58120230A JPS58120230A (ja) 1983-07-18
JPS6330614B2 true JPS6330614B2 (zh) 1988-06-20

Family

ID=11543115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP293282A Granted JPS58120230A (ja) 1982-01-11 1982-01-11 カメラの焦点板

Country Status (1)

Country Link
JP (1) JPS58120230A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4916625B2 (ja) * 2001-06-25 2012-04-18 三菱樹脂株式会社 土木資材用不織布

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493683A (zh) * 1972-03-14 1974-01-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS493683A (zh) * 1972-03-14 1974-01-12

Also Published As

Publication number Publication date
JPS58120230A (ja) 1983-07-18

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