JP2001305437A - 実像式ファインダー光学系 - Google Patents
実像式ファインダー光学系Info
- Publication number
- JP2001305437A JP2001305437A JP2000122413A JP2000122413A JP2001305437A JP 2001305437 A JP2001305437 A JP 2001305437A JP 2000122413 A JP2000122413 A JP 2000122413A JP 2000122413 A JP2000122413 A JP 2000122413A JP 2001305437 A JP2001305437 A JP 2001305437A
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- focal length
- objective optical
- eyepiece
- real image
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 481
- 238000003384 imaging method Methods 0.000 claims description 7
- 230000004075 alteration Effects 0.000 description 34
- 230000001154 acute effect Effects 0.000 description 14
- 201000009310 astigmatism Diseases 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 210000001747 pupil Anatomy 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Viewfinders (AREA)
- Lenses (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000122413A JP2001305437A (ja) | 2000-04-18 | 2000-04-18 | 実像式ファインダー光学系 |
| US09/836,391 US6671461B2 (en) | 2000-04-18 | 2001-04-18 | Real image mode finder optical system |
| US10/687,911 US6862411B2 (en) | 2000-04-18 | 2003-10-20 | Real image mode finder optical system |
| US11/009,084 US6973266B2 (en) | 2000-04-18 | 2004-12-13 | Finder optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000122413A JP2001305437A (ja) | 2000-04-18 | 2000-04-18 | 実像式ファインダー光学系 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001305437A true JP2001305437A (ja) | 2001-10-31 |
| JP2001305437A5 JP2001305437A5 (enrdf_load_stackoverflow) | 2006-07-27 |
Family
ID=18632889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000122413A Pending JP2001305437A (ja) | 2000-04-18 | 2000-04-18 | 実像式ファインダー光学系 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001305437A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006259476A (ja) * | 2005-03-18 | 2006-09-28 | Olympus Corp | ファインダー光学系及び一眼レフカメラ |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01116616A (ja) * | 1987-10-30 | 1989-05-09 | Canon Inc | 変倍ファインダー |
| JPH06342183A (ja) * | 1993-04-06 | 1994-12-13 | Olympus Optical Co Ltd | 高倍率な実像式ファインダー光学系 |
| JPH0876192A (ja) * | 1994-09-05 | 1996-03-22 | Olympus Optical Co Ltd | 実像式変倍ファインダー光学系 |
| JPH09197487A (ja) * | 1996-01-23 | 1997-07-31 | Minolta Co Ltd | 沈胴式実像ファインダー |
| JPH10333032A (ja) * | 1997-05-28 | 1998-12-18 | Minolta Co Ltd | 変倍ファインダー |
| JPH10333033A (ja) * | 1997-06-02 | 1998-12-18 | Olympus Optical Co Ltd | 実像式変倍ファインダー |
| JPH1144840A (ja) * | 1997-07-25 | 1999-02-16 | Minolta Co Ltd | ファインダ光学系 |
| JPH1152258A (ja) * | 1997-07-31 | 1999-02-26 | Canon Inc | ファインダ |
| JPH1172706A (ja) * | 1997-06-18 | 1999-03-16 | Konica Corp | 実像式ズームファインダ |
-
2000
- 2000-04-18 JP JP2000122413A patent/JP2001305437A/ja active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01116616A (ja) * | 1987-10-30 | 1989-05-09 | Canon Inc | 変倍ファインダー |
| JPH06342183A (ja) * | 1993-04-06 | 1994-12-13 | Olympus Optical Co Ltd | 高倍率な実像式ファインダー光学系 |
| JPH0876192A (ja) * | 1994-09-05 | 1996-03-22 | Olympus Optical Co Ltd | 実像式変倍ファインダー光学系 |
| JPH09197487A (ja) * | 1996-01-23 | 1997-07-31 | Minolta Co Ltd | 沈胴式実像ファインダー |
| JPH10333032A (ja) * | 1997-05-28 | 1998-12-18 | Minolta Co Ltd | 変倍ファインダー |
| JPH10333033A (ja) * | 1997-06-02 | 1998-12-18 | Olympus Optical Co Ltd | 実像式変倍ファインダー |
| JPH1172706A (ja) * | 1997-06-18 | 1999-03-16 | Konica Corp | 実像式ズームファインダ |
| JPH1144840A (ja) * | 1997-07-25 | 1999-02-16 | Minolta Co Ltd | ファインダ光学系 |
| JPH1152258A (ja) * | 1997-07-31 | 1999-02-26 | Canon Inc | ファインダ |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006259476A (ja) * | 2005-03-18 | 2006-09-28 | Olympus Corp | ファインダー光学系及び一眼レフカメラ |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060607 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060607 |
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| A977 | Report on retrieval |
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| A131 | Notification of reasons for refusal |
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| A521 | Request for written amendment filed |
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| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20091208 |
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| A02 | Decision of refusal |
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