DE3408961C2 - - Google Patents

Info

Publication number
DE3408961C2
DE3408961C2 DE3408961A DE3408961A DE3408961C2 DE 3408961 C2 DE3408961 C2 DE 3408961C2 DE 3408961 A DE3408961 A DE 3408961A DE 3408961 A DE3408961 A DE 3408961A DE 3408961 C2 DE3408961 C2 DE 3408961C2
Authority
DE
Germany
Prior art keywords
clock signals
clock
control circuit
pulse width
operating mode
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
DE3408961A
Other languages
German (de)
English (en)
Other versions
DE3408961A1 (de
Inventor
Eiichi Tano
Takeo Kobayashi
Kiyoshi Tokio/Tokyo Jp Negishi
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
Publication of DE3408961A1 publication Critical patent/DE3408961A1/de
Application granted granted Critical
Publication of DE3408961C2 publication Critical patent/DE3408961C2/de
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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Indication In Cameras, And Counting Of Exposures (AREA)
  • Analogue/Digital Conversion (AREA)
DE19843408961 1983-03-12 1984-03-12 Umschalte-schaltkreis fuer fotografier-betriebszustandsanzeige Granted DE3408961A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983034905U JPS59141332U (ja) 1983-03-12 1983-03-12 カメラの撮影モ−ド表示の切換え回路

Publications (2)

Publication Number Publication Date
DE3408961A1 DE3408961A1 (de) 1984-09-20
DE3408961C2 true DE3408961C2 (en, 2012) 1987-06-25

Family

ID=12427199

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843408961 Granted DE3408961A1 (de) 1983-03-12 1984-03-12 Umschalte-schaltkreis fuer fotografier-betriebszustandsanzeige

Country Status (4)

Country Link
US (1) US4557575A (en, 2012)
JP (1) JPS59141332U (en, 2012)
DE (1) DE3408961A1 (en, 2012)
GB (1) GB2139386B (en, 2012)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2816708B2 (ja) * 1989-06-09 1998-10-27 旭光学工業株式会社 ズームカメラ
JP2761773B2 (ja) * 1989-10-17 1998-06-04 旭光学工業株式会社 内視鏡用光源装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5258529A (en) * 1975-11-08 1977-05-14 Canon Inc Camera system
JPS5421329A (en) * 1977-07-18 1979-02-17 Hitachi Ltd Control system for cameras
JPS5528049A (en) * 1978-08-19 1980-02-28 Nippon Kogaku Kk <Nikon> Photographing mode selectable camera
JPS5688122A (en) * 1979-12-21 1981-07-17 Oki Electric Ind Co Ltd Control circuit
JPS56121020A (en) * 1980-02-26 1981-09-22 Minolta Camera Co Ltd Exposure controller of camera
JPS5789744A (en) * 1980-11-26 1982-06-04 Seiko Epson Corp Electronic device
JPS57196419A (en) * 1981-05-28 1982-12-02 Suwa Seikosha Kk Input chattering preventing circuit for small portable device

Also Published As

Publication number Publication date
US4557575A (en) 1985-12-10
GB2139386B (en) 1986-05-08
DE3408961A1 (de) 1984-09-20
JPH0453630Y2 (en, 2012) 1992-12-16
GB8406379D0 (en) 1984-04-18
GB2139386A (en) 1984-11-07
JPS59141332U (ja) 1984-09-21

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: PENTAX CORP., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee