JPS57210327A - Adjusting device for photographic information input means of camera - Google Patents

Adjusting device for photographic information input means of camera

Info

Publication number
JPS57210327A
JPS57210327A JP56096123A JP9612381A JPS57210327A JP S57210327 A JPS57210327 A JP S57210327A JP 56096123 A JP56096123 A JP 56096123A JP 9612381 A JP9612381 A JP 9612381A JP S57210327 A JPS57210327 A JP S57210327A
Authority
JP
Japan
Prior art keywords
resistance
photographic information
sliding
vrsv
information input
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.)
Pending
Application number
JP56096123A
Other languages
Japanese (ja)
Inventor
Masami Shimizu
Nobuyuki Suzuki
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 JP56096123A priority Critical patent/JPS57210327A/en
Publication of JPS57210327A publication Critical patent/JPS57210327A/en
Pending 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
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Adjustable Resistors (AREA)

Abstract

PURPOSE:To improve the adjustment precision, by providing a stepped resistance plate and brushes for photographic information input adjustment and a constitution capable of recognizing relative positions of them. CONSTITUTION:A sliding resistance plate as an input adjustment means for photographic information such as shutter seconds, film sensitivity, and lens opening F value consists of a fixed resistance RO, a resistance VRSV of a potentiometer type variable resistor, many tap electrodes 53 brough into contact with this resistance VRSV, and a conductor pattern 54 which are arranged around an attaching hole 51 on an insulating substrate 50, and one of a pair of sliding brushes slides on sliding parts 53a connected to leading-out parts 53, and the other brush slides on the common pattern 54. Electrodes 55a and 55b having a gap are provided in the initial set position (indicated by the one-dot broken line). When the brush is placed in positions A, B, and C, an equivalent measuring circuit realizes as shown in (A), (B), and (C) of figure respectively, and different outputs are inputted from an operational amplifier 134 to a meter for display. Consequently, the adjustment precision is improved.
JP56096123A 1981-06-22 1981-06-22 Adjusting device for photographic information input means of camera Pending JPS57210327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56096123A JPS57210327A (en) 1981-06-22 1981-06-22 Adjusting device for photographic information input means of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096123A JPS57210327A (en) 1981-06-22 1981-06-22 Adjusting device for photographic information input means of camera

Publications (1)

Publication Number Publication Date
JPS57210327A true JPS57210327A (en) 1982-12-23

Family

ID=14156598

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096123A Pending JPS57210327A (en) 1981-06-22 1981-06-22 Adjusting device for photographic information input means of camera

Country Status (1)

Country Link
JP (1) JPS57210327A (en)

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