HK1005924A1 - Distance measuring apparatus - Google Patents

Distance measuring apparatus

Info

Publication number
HK1005924A1
HK1005924A1 HK98105014A HK98105014A HK1005924A1 HK 1005924 A1 HK1005924 A1 HK 1005924A1 HK 98105014 A HK98105014 A HK 98105014A HK 98105014 A HK98105014 A HK 98105014A HK 1005924 A1 HK1005924 A1 HK 1005924A1
Authority
HK
Hong Kong
Prior art keywords
measuring apparatus
distance measuring
distance
measuring
Prior art date
Application number
HK98105014A
Other languages
English (en)
Inventor
Hajime Oda
Original Assignee
Seiko Precision 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
Application filed by Seiko Precision Kk filed Critical Seiko Precision Kk
Publication of HK1005924A1 publication Critical patent/HK1005924A1/xx

Links

Classifications

    • 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
    • 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
    • G01S17/04—Systems determining the presence of a target
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Optics & Photonics (AREA)
  • Measurement Of Optical Distance (AREA)
  • Automatic Focus Adjustment (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Focusing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
HK98105014A 1994-07-28 1998-06-06 Distance measuring apparatus HK1005924A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6176938A JP2779380B2 (ja) 1994-07-28 1994-07-28 測距装置

Publications (1)

Publication Number Publication Date
HK1005924A1 true HK1005924A1 (en) 1999-01-29

Family

ID=16022370

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98105014A HK1005924A1 (en) 1994-07-28 1998-06-06 Distance measuring apparatus

Country Status (4)

Country Link
US (1) US5640005A (xx)
JP (1) JP2779380B2 (xx)
GB (1) GB2292035B (xx)
HK (1) HK1005924A1 (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5808726A (en) * 1995-02-28 1998-09-15 Canon Kabushiki Kaisha Distance measurement apparatus
JP2743905B2 (ja) * 1996-02-28 1998-04-28 日本電気株式会社 監視空間通過検出装置
SG117476A1 (en) * 2003-08-28 2005-12-29 Sony Corp Auto-focusing method and system
US7652241B2 (en) * 2004-01-09 2010-01-26 Aptina Imaging Corporation Image acquisition timing system and method
JP5651289B2 (ja) * 2008-03-25 2015-01-07 アズビル株式会社 反射型光電スイッチおよび物体検出方法
JP5667337B2 (ja) * 2008-03-31 2015-02-12 アズビル株式会社 反射型光電スイッチおよび物体検出方法
JP5537783B2 (ja) * 2008-06-24 2014-07-02 アズビル株式会社 物理量センサおよび物理量計測方法
JP5545920B2 (ja) * 2008-09-29 2014-07-09 アズビル株式会社 反射型光電スイッチおよび物体検出方法
JP2014017809A (ja) * 2012-06-15 2014-01-30 Canon Inc 光受信回路、振動型アクチュエータの駆動装置、及びシステム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2744130A1 (de) * 1977-09-30 1979-04-12 Siemens Ag Vorrichtung zum beruehrungsfreien messen des abstandes einer oberflaeche eines objektes von einer bezugsebene
US4752799A (en) * 1986-07-07 1988-06-21 Honeywell Inc. Optical proximity sensing optics
US5082363A (en) * 1988-02-12 1992-01-21 Omron Tateisi Electronics Co. Optical distance measuring apparatus and method using light projection pulses
JP2909742B2 (ja) * 1988-06-29 1999-06-23 株式会社トプコン 遅延時間測定装置
CA2038818A1 (en) * 1990-03-30 1991-10-01 Akio Nagamune Distance measuring method and apparatus therefor
US5204714A (en) * 1990-06-15 1993-04-20 Olympus Optical Co., Ltd. Object distance detecting apparatus
US5157435A (en) * 1990-09-29 1992-10-20 Samsung Electronics Co., Ltd. Automatic focusing apparatus for a video camera and the method thereof

Also Published As

Publication number Publication date
US5640005A (en) 1997-06-17
JPH0843079A (ja) 1996-02-16
GB9515584D0 (en) 1995-09-27
JP2779380B2 (ja) 1998-07-23
GB2292035A (en) 1996-02-07
GB2292035B (en) 1998-02-25

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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: 20050728