JP4709626B2 - レンズ装置 - Google Patents
レンズ装置 Download PDFInfo
- Publication number
- JP4709626B2 JP4709626B2 JP2005287171A JP2005287171A JP4709626B2 JP 4709626 B2 JP4709626 B2 JP 4709626B2 JP 2005287171 A JP2005287171 A JP 2005287171A JP 2005287171 A JP2005287171 A JP 2005287171A JP 4709626 B2 JP4709626 B2 JP 4709626B2
- Authority
- JP
- Japan
- Prior art keywords
- projection
- lens
- moving cylinder
- image
- helicoid screw
- 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
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
- G02B27/0068—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration having means for controlling the degree of correction, e.g. using phase modulators, movable elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lens Barrels (AREA)
- Projection Apparatus (AREA)
Description
4 スクリーン
5 平面鏡
6 光学エンジン
13 投影光学系
25 後群光学系
26 反射ミラー
27 前群光学系
31 ゲート部
34 有効投影領域
40 第1移動筒
45 第2移動筒
53 保持筒
54 保持枠
65 第1ヘリコイドネジ
66 第2ヘリコイドネジ
G1 投写レンズ
Claims (2)
- プラスチックレンズが収容されるとともに、雌雄一対が螺合する第1ヘリコイドネジの一方が形成された第1移動筒と、
前記プラスチックレンズと光軸上で組み合わされる複数のレンズが収容され、前端側に前記第1ヘリコイドネジの一方と螺合する他方が形成されて前記他方の第1ヘリコイドネジによって前記第1移動筒を移動自在に保持するとともに、後端側に第2ヘリコイドネジの一方が形成され、前記第1ヘリコイドネジのリードピッチと前記第2ヘリコイドネジのリードピッチの比が、画面サイズの変更に伴うフォーカス調整のための前記第2移動筒の移動量と、前記フォーカス調整に伴う像面歪曲補正のための前記第1移動筒の移動量との比の略逆数となるように設定された第2移動筒と、
前記第2ヘリコイドネジの他方が形成され、前記他方の第2ヘリコイドネジによって前記第2移動筒が保持されるとともに本体部材に固定される保持筒とを備えたことを特徴とするリアプロジェクタ用のレンズ装置。 - 前記プラスチックレンズの少なくとも1面は非球面に形成されることを特徴とする請求項1記載のリアプロジェクタ用のレンズ装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005287171A JP4709626B2 (ja) | 2005-09-30 | 2005-09-30 | レンズ装置 |
US11/528,382 US7403348B2 (en) | 2005-09-30 | 2006-09-28 | Lens assembly for projecting image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005287171A JP4709626B2 (ja) | 2005-09-30 | 2005-09-30 | レンズ装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007094334A JP2007094334A (ja) | 2007-04-12 |
JP4709626B2 true JP4709626B2 (ja) | 2011-06-22 |
Family
ID=37901632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005287171A Expired - Fee Related JP4709626B2 (ja) | 2005-09-30 | 2005-09-30 | レンズ装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7403348B2 (ja) |
JP (1) | JP4709626B2 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7782557B2 (en) * | 2006-06-23 | 2010-08-24 | Hoya Corporation | Lens position adjusting device |
JP5035966B2 (ja) * | 2007-03-27 | 2012-09-26 | 富士フイルム株式会社 | レンズ鏡筒 |
JP4780723B2 (ja) * | 2007-04-13 | 2011-09-28 | 株式会社小糸製作所 | 車輌用灯具 |
DE102008048333B4 (de) * | 2008-09-22 | 2018-12-27 | Pentacon Gmbh Foto- Und Feinwerktechnik | Formteil für optische Zwecke und zugehöriges Herstellungsverfahren |
KR101009199B1 (ko) * | 2008-10-28 | 2011-01-19 | 삼성전기주식회사 | 이중배럴을 구비한 카메라 모듈 |
US20100172032A1 (en) * | 2008-12-26 | 2010-07-08 | Nikon Corporation | Lens barrel, image capturing apparatus, and manufacturing method |
CN102445823B (zh) * | 2010-10-04 | 2017-04-26 | 日立麦克赛尔株式会社 | 投影型影像显示装置 |
CN102681135A (zh) * | 2011-03-07 | 2012-09-19 | 鸿富锦精密工业(深圳)有限公司 | 镜头座及使用该镜头座的摄像装置 |
JP5929311B2 (ja) | 2012-02-28 | 2016-06-01 | 株式会社ニコン | レンズ鏡筒及び撮像装置 |
JP6160323B2 (ja) * | 2013-07-18 | 2017-07-12 | 株式会社デンソー | レンズ鏡筒 |
JP6578892B2 (ja) * | 2015-01-27 | 2019-09-25 | セイコーエプソン株式会社 | 投写光学装置、およびプロジェクター |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5251787Y2 (ja) * | 1972-08-07 | 1977-11-25 | ||
JPS5963315U (ja) * | 1982-10-20 | 1984-04-26 | 旭光学工業株式会社 | レンズ鏡筒のフオ−カシング機構 |
JPH07218799A (ja) * | 1994-02-02 | 1995-08-18 | Nikon Corp | レンズ鏡筒 |
JPH08327873A (ja) * | 1995-05-29 | 1996-12-13 | Canon Inc | リヤーフォーカス式のズームレンズ |
JPH09138333A (ja) * | 1995-11-16 | 1997-05-27 | Olympus Optical Co Ltd | 撮影レンズ |
JP2000023002A (ja) * | 1998-07-01 | 2000-01-21 | Minolta Co Ltd | デジタルカメラ |
JP2001188159A (ja) * | 1999-12-24 | 2001-07-10 | Konica Corp | プラスチックレンズ及びその製造方法 |
JP2003248271A (ja) * | 2002-01-09 | 2003-09-05 | Samsung Electronics Co Ltd | プロジェクションテレビの投射レンズユニット |
JP2004361620A (ja) * | 2003-06-04 | 2004-12-24 | Seiko Epson Corp | 投写レンズ及びこれを備えたプロジェクタ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3582329B2 (ja) * | 1997-11-26 | 2004-10-27 | ミノルタ株式会社 | 鏡胴 |
JP2001215385A (ja) * | 2000-02-01 | 2001-08-10 | Asahi Optical Co Ltd | 直進レンズのカム駆動機構 |
US6963455B2 (en) * | 2003-02-05 | 2005-11-08 | Pentax Corporation | Lens barrel |
-
2005
- 2005-09-30 JP JP2005287171A patent/JP4709626B2/ja not_active Expired - Fee Related
-
2006
- 2006-09-28 US US11/528,382 patent/US7403348B2/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5251787Y2 (ja) * | 1972-08-07 | 1977-11-25 | ||
JPS5963315U (ja) * | 1982-10-20 | 1984-04-26 | 旭光学工業株式会社 | レンズ鏡筒のフオ−カシング機構 |
JPH07218799A (ja) * | 1994-02-02 | 1995-08-18 | Nikon Corp | レンズ鏡筒 |
JPH08327873A (ja) * | 1995-05-29 | 1996-12-13 | Canon Inc | リヤーフォーカス式のズームレンズ |
JPH09138333A (ja) * | 1995-11-16 | 1997-05-27 | Olympus Optical Co Ltd | 撮影レンズ |
JP2000023002A (ja) * | 1998-07-01 | 2000-01-21 | Minolta Co Ltd | デジタルカメラ |
JP2001188159A (ja) * | 1999-12-24 | 2001-07-10 | Konica Corp | プラスチックレンズ及びその製造方法 |
JP2003248271A (ja) * | 2002-01-09 | 2003-09-05 | Samsung Electronics Co Ltd | プロジェクションテレビの投射レンズユニット |
JP2004361620A (ja) * | 2003-06-04 | 2004-12-24 | Seiko Epson Corp | 投写レンズ及びこれを備えたプロジェクタ |
Also Published As
Publication number | Publication date |
---|---|
US20070076305A1 (en) | 2007-04-05 |
JP2007094334A (ja) | 2007-04-12 |
US7403348B2 (en) | 2008-07-22 |
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