JP4155220B2 - プロジェクタ - Google Patents
プロジェクタ Download PDFInfo
- Publication number
- JP4155220B2 JP4155220B2 JP2004104210A JP2004104210A JP4155220B2 JP 4155220 B2 JP4155220 B2 JP 4155220B2 JP 2004104210 A JP2004104210 A JP 2004104210A JP 2004104210 A JP2004104210 A JP 2004104210A JP 4155220 B2 JP4155220 B2 JP 4155220B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- light
- light beam
- light source
- polarization
- 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
Links
- 230000010287 polarization Effects 0.000 claims description 240
- 230000003287 optical effect Effects 0.000 claims description 129
- 238000000926 separation method Methods 0.000 claims description 118
- 238000005286 illumination Methods 0.000 claims description 95
- 239000004973 liquid crystal related substance Substances 0.000 claims description 65
- 230000009467 reduction Effects 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 description 94
- 230000005540 biological transmission Effects 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 239000007787 solid Substances 0.000 description 11
- 239000011159 matrix material Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000004075 alteration Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000005304 optical glass Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
- Projection Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004104210A JP4155220B2 (ja) | 2004-03-31 | 2004-03-31 | プロジェクタ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004104210A JP4155220B2 (ja) | 2004-03-31 | 2004-03-31 | プロジェクタ |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000020815A Division JP3666339B2 (ja) | 2000-01-28 | 2000-01-28 | プロジェクタ |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008124345A Division JP4962405B2 (ja) | 2008-05-12 | 2008-05-12 | プロジェクタ |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004206146A JP2004206146A (ja) | 2004-07-22 |
| JP2004206146A5 JP2004206146A5 (enExample) | 2007-04-19 |
| JP4155220B2 true JP4155220B2 (ja) | 2008-09-24 |
Family
ID=32822346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004104210A Expired - Fee Related JP4155220B2 (ja) | 2004-03-31 | 2004-03-31 | プロジェクタ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4155220B2 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5361145B2 (ja) * | 2006-06-08 | 2013-12-04 | キヤノン株式会社 | 照明光学系、画像投射用光学系及び画像投射装置 |
| US7935920B2 (en) | 2006-06-08 | 2011-05-03 | Canon Kabushiki Kaisha | Illumination optical system including luminous flux conversion system |
-
2004
- 2004-03-31 JP JP2004104210A patent/JP4155220B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004206146A (ja) | 2004-07-22 |
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