JP4785078B2 - プロジェクタ - Google Patents

プロジェクタ Download PDF

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Publication number
JP4785078B2
JP4785078B2 JP2008009834A JP2008009834A JP4785078B2 JP 4785078 B2 JP4785078 B2 JP 4785078B2 JP 2008009834 A JP2008009834 A JP 2008009834A JP 2008009834 A JP2008009834 A JP 2008009834A JP 4785078 B2 JP4785078 B2 JP 4785078B2
Authority
JP
Japan
Prior art keywords
light
light receiving
screen
receiving element
distance
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 - Fee Related
Application number
JP2008009834A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008268181A (ja
Inventor
協 山本
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP2008009834A priority Critical patent/JP4785078B2/ja
Priority to US12/077,861 priority patent/US7980703B2/en
Priority to CN2008100867849A priority patent/CN101276131B/zh
Publication of JP2008268181A publication Critical patent/JP2008268181A/ja
Application granted granted Critical
Publication of JP4785078B2 publication Critical patent/JP4785078B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Projection Apparatus (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Transforming Electric Information Into Light Information (AREA)
JP2008009834A 2007-03-26 2008-01-18 プロジェクタ Expired - Fee Related JP4785078B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008009834A JP4785078B2 (ja) 2007-03-26 2008-01-18 プロジェクタ
US12/077,861 US7980703B2 (en) 2007-03-26 2008-03-21 Projector
CN2008100867849A CN101276131B (zh) 2007-03-26 2008-03-26 投影仪

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007078754 2007-03-26
JP2007078754 2007-03-26
JP2008009834A JP4785078B2 (ja) 2007-03-26 2008-01-18 プロジェクタ

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2009216616A Division JP5504781B2 (ja) 2007-03-26 2009-09-18 プロジェクタ

Publications (2)

Publication Number Publication Date
JP2008268181A JP2008268181A (ja) 2008-11-06
JP4785078B2 true JP4785078B2 (ja) 2011-10-05

Family

ID=39995688

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2008009834A Expired - Fee Related JP4785078B2 (ja) 2007-03-26 2008-01-18 プロジェクタ
JP2009216616A Active JP5504781B2 (ja) 2007-03-26 2009-09-18 プロジェクタ

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2009216616A Active JP5504781B2 (ja) 2007-03-26 2009-09-18 プロジェクタ

Country Status (2)

Country Link
JP (2) JP4785078B2 (zh)
CN (1) CN101276131B (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010243921A (ja) * 2009-04-08 2010-10-28 Sanyo Electric Co Ltd 投写型映像表示装置
JP5473543B2 (ja) * 2009-11-05 2014-04-16 キヤノン株式会社 画像表示装置
CN102998885B (zh) * 2012-11-20 2015-09-02 芜湖市安曼特微显示科技有限公司 对投影仪投影图像失真校正的方法
WO2015046127A1 (ja) * 2013-09-25 2015-04-02 株式会社村田製作所 傾き検出装置
CN103561224A (zh) * 2013-10-23 2014-02-05 上海明泰照明电器有限公司 激光倾斜投影图像的校正方法
CN105954961A (zh) * 2016-05-06 2016-09-21 联想(北京)有限公司 一种信息处理方法及投影设备
CN108332039B (zh) * 2017-01-17 2021-01-12 宝山钢铁股份有限公司 三点激光式煤气柜活塞倾斜检测方法
CN106931937B (zh) * 2017-05-05 2019-05-07 西安工业大学 多点激光测量平面空间偏角的方法及装置
JP7170251B2 (ja) * 2018-06-08 2022-11-14 パナソニックＩｐマネジメント株式会社 距離測定装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046363B2 (ja) * 1980-04-16 1985-10-15 健介 長谷川 傾き検出器
US4427880A (en) * 1981-06-29 1984-01-24 Westinghouse Electric Corp. Non-contact visual proximity sensing apparatus
JPS58158377U (ja) * 1982-04-19 1983-10-22 旭光学工業株式会社 光波距離計の切換シヤツタ−
JPS6129703A (ja) * 1984-07-20 1986-02-10 Motoda Electronics Co Ltd 相対位置検出方法及び装置
JPS61193386U (zh) * 1985-05-27 1986-12-02
JPH01158376A (ja) * 1987-12-16 1989-06-21 Toshiba Corp 光測距装置
JP3256859B2 (ja) * 1992-04-15 2002-02-18 株式会社トプコン 光波距離計
JPH06137862A (ja) * 1992-10-23 1994-05-20 Omron Corp 光学式センサ
JPH076782U (ja) * 1993-06-30 1995-01-31 富士通テン株式会社 距離測定装置
JP3265449B2 (ja) * 1996-01-25 2002-03-11 シャープ株式会社 測距センサ
JPH10339605A (ja) * 1997-06-09 1998-12-22 Hamamatsu Photonics Kk 光学式距離計
JPH11230740A (ja) * 1998-02-12 1999-08-27 Topcon Corp 距離測定装置
JP2003271941A (ja) * 2002-03-19 2003-09-26 Fuji Xerox Co Ltd ３次元物体識別装置
JP4155890B2 (ja) * 2003-07-15 2008-09-24 カシオ計算機株式会社 プロジェクタ、プロジェクタの傾斜角度取得方法及び投影像補正方法
JP2006313116A (ja) * 2005-05-09 2006-11-16 Nec Viewtechnology Ltd 距離傾斜角度検出装置および該検出装置を備えたプロジェクタ

Also Published As

Publication number Publication date
CN101276131A (zh) 2008-10-01
JP2008268181A (ja) 2008-11-06
JP5504781B2 (ja) 2014-05-28
CN101276131B (zh) 2012-05-16
JP2009294227A (ja) 2009-12-17

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