HK19894A - Focus determining system for a camera - Google Patents

Focus determining system for a camera

Info

Publication number
HK19894A
HK19894A HK19894A HK19894A HK19894A HK 19894 A HK19894 A HK 19894A HK 19894 A HK19894 A HK 19894A HK 19894 A HK19894 A HK 19894A HK 19894 A HK19894 A HK 19894A
Authority
HK
Hong Kong
Prior art keywords
camera
determining system
focus determining
focus
determining
Prior art date
Application number
HK19894A
Inventor
Shinji Nagaoka
Katsuhiko Matsushita
Koji Sato
Original Assignee
Seikosha Kk
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
Priority claimed from JP62327293A external-priority patent/JPH07104158B2/en
Priority claimed from JP32729287A external-priority patent/JPH01199111A/en
Priority claimed from JP32729087A external-priority patent/JPH01199109A/en
Priority claimed from JP32728987A external-priority patent/JPH01199108A/en
Priority claimed from JP62327291A external-priority patent/JPH07104157B2/en
Application filed by Seikosha Kk filed Critical Seikosha Kk
Publication of HK19894A publication Critical patent/HK19894A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/46—Indirect determination of position data
    • G01S17/48—Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32—Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Focusing (AREA)
  • Measurement Of Optical Distance (AREA)
  • Automatic Focus Adjustment (AREA)
HK19894A 1987-12-25 1994-03-10 Focus determining system for a camera HK19894A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP62327293A JPH07104158B2 (en) 1987-12-25 1987-12-25 Distance detector for camera
JP32729287A JPH01199111A (en) 1987-12-25 1987-12-25 Distance detector for camera
JP32729087A JPH01199109A (en) 1987-12-25 1987-12-25 Distance detector for camera
JP32728987A JPH01199108A (en) 1987-12-25 1987-12-25 Distance detector for camera
JP62327291A JPH07104157B2 (en) 1987-12-25 1987-12-25 Distance detector for camera

Publications (1)

Publication Number Publication Date
HK19894A true HK19894A (en) 1994-03-18

Family

ID=27531164

Family Applications (1)

Application Number Title Priority Date Filing Date
HK19894A HK19894A (en) 1987-12-25 1994-03-10 Focus determining system for a camera

Country Status (3)

Country Link
DE (1) DE3843648C2 (en)
GB (1) GB2212688B (en)
HK (1) HK19894A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3001013B2 (en) * 1991-03-06 2000-01-17 オリンパス光学工業株式会社 Distance measuring device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK8079A (en) * 1978-01-13 1979-07-14 Patent Concern Nv SOIL TURNING MACHINE
DE2815150A1 (en) * 1978-04-07 1979-10-18 Agfa Gevaert Ag FOCUSING DEVICE FOR PHOTOGRAPHIC OR KINEMATOGRAPHIC CAMERAS
DE2832044A1 (en) * 1978-07-21 1980-01-31 Agfa Gevaert Ag FOCUSING DEVICE FOR PHOTOGRAPHIC OR KINEMATOGRAPHIC CAMERAS
US4621292A (en) * 1983-10-19 1986-11-04 Matsushita Electric Industrial Co., Ltd. Automatic focusing device for a video camera
US4673274A (en) * 1984-09-18 1987-06-16 Matsushita Electric Industrial Co., Ltd. Automatic focusing apparatus for camera

Also Published As

Publication number Publication date
DE3843648A1 (en) 1989-07-06
GB2212688A (en) 1989-07-26
GB2212688B (en) 1992-06-17
DE3843648C2 (en) 1995-11-16
GB8830029D0 (en) 1989-02-15

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20041222