JPS62169335U - - Google Patents
Info
- Publication number
- JPS62169335U JPS62169335U JP1985198336U JP19833685U JPS62169335U JP S62169335 U JPS62169335 U JP S62169335U JP 1985198336 U JP1985198336 U JP 1985198336U JP 19833685 U JP19833685 U JP 19833685U JP S62169335 U JPS62169335 U JP S62169335U
- Authority
- JP
- Japan
- Prior art keywords
- opening
- mesh
- reflective
- lamp house
- overhead projector
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims 2
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985198336U JPH0529465Y2 (US07534539-20090519-C00280.png) | 1985-12-25 | 1985-12-25 | |
| US06/943,321 US4824239A (en) | 1985-12-25 | 1986-12-22 | Reflection-type overhead projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985198336U JPH0529465Y2 (US07534539-20090519-C00280.png) | 1985-12-25 | 1985-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62169335U true JPS62169335U (US07534539-20090519-C00280.png) | 1987-10-27 |
| JPH0529465Y2 JPH0529465Y2 (US07534539-20090519-C00280.png) | 1993-07-28 |
Family
ID=16389417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985198336U Expired - Lifetime JPH0529465Y2 (US07534539-20090519-C00280.png) | 1985-12-25 | 1985-12-25 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4824239A (US07534539-20090519-C00280.png) |
| JP (1) | JPH0529465Y2 (US07534539-20090519-C00280.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978218A (en) * | 1990-03-01 | 1990-12-18 | Minnesota Mining And Manufacturing Company | Folding arm for overhead projector |
| AU634053B2 (en) * | 1990-05-10 | 1993-02-11 | Christopher John Curtis | Projector |
| JP4259571B2 (ja) * | 2006-11-22 | 2009-04-30 | 船井電機株式会社 | プロジェクタ |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4510775Y1 (US07534539-20090519-C00280.png) * | 1966-07-08 | 1970-05-15 | ||
| JPS59101250U (ja) * | 1982-12-24 | 1984-07-07 | キヤビン工業株式会社 | オ−バ−ヘツドプロジエクタ− |
| JPS60163034A (ja) * | 1984-02-06 | 1985-08-24 | Fuji Photo Film Co Ltd | ランプハウスの安全カバ−装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1444054A (en) * | 1919-03-10 | 1923-02-06 | Benjamin Electric Mfg Co | Lamp guard |
| US1474401A (en) * | 1922-03-25 | 1923-11-20 | Matthew F Bramley | Lantern cage |
| US3340765A (en) * | 1964-07-27 | 1967-09-12 | Bell Telephone Labor Inc | Projection system |
| US3459475A (en) * | 1966-11-14 | 1969-08-05 | James Wortz Lucas | Overhead projector |
| DE2747916C3 (de) * | 1977-10-26 | 1980-12-11 | Fa. Ed. Liesegang, 4000 Duesseldorf | Schreibprojektor |
| DE3002105C2 (de) * | 1980-01-22 | 1982-05-19 | Lumoprint Zindler Kg (Gmbh & Co), 2000 Hamburg | Arbeitsprojektor |
-
1985
- 1985-12-25 JP JP1985198336U patent/JPH0529465Y2/ja not_active Expired - Lifetime
-
1986
- 1986-12-22 US US06/943,321 patent/US4824239A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4510775Y1 (US07534539-20090519-C00280.png) * | 1966-07-08 | 1970-05-15 | ||
| JPS59101250U (ja) * | 1982-12-24 | 1984-07-07 | キヤビン工業株式会社 | オ−バ−ヘツドプロジエクタ− |
| JPS60163034A (ja) * | 1984-02-06 | 1985-08-24 | Fuji Photo Film Co Ltd | ランプハウスの安全カバ−装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US4824239A (en) | 1989-04-25 |
| JPH0529465Y2 (US07534539-20090519-C00280.png) | 1993-07-28 |
