IT984143B - Apparecchio di proiezione ottica - Google Patents
Apparecchio di proiezione otticaInfo
- Publication number
- IT984143B IT984143B IT2345373A IT2345373A IT984143B IT 984143 B IT984143 B IT 984143B IT 2345373 A IT2345373 A IT 2345373A IT 2345373 A IT2345373 A IT 2345373A IT 984143 B IT984143 B IT 984143B
- Authority
- IT
- Italy
- Prior art keywords
- optical projection
- projection equipment
- equipment
- optical
- projection
- Prior art date
Links
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE552172A SE363906B (pl) | 1972-04-26 | 1972-04-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT984143B true IT984143B (it) | 1974-11-20 |
Family
ID=20266665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2345373A IT984143B (it) | 1972-04-26 | 1973-04-26 | Apparecchio di proiezione ottica |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS4967625A (pl) |
DE (1) | DE2321219A1 (pl) |
FR (1) | FR2187135A5 (pl) |
GB (1) | GB1429992A (pl) |
IT (1) | IT984143B (pl) |
SE (1) | SE363906B (pl) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5453530A (en) * | 1977-10-05 | 1979-04-26 | Tetsuo Nomoto | Overhead projector |
JPS5867325U (ja) * | 1981-10-30 | 1983-05-07 | 株式会社ミツトヨ | 投影機 |
-
1972
- 1972-04-26 SE SE552172A patent/SE363906B/xx unknown
-
1973
- 1973-04-24 GB GB1937173A patent/GB1429992A/en not_active Expired
- 1973-04-25 FR FR7314936A patent/FR2187135A5/fr not_active Expired
- 1973-04-26 DE DE19732321219 patent/DE2321219A1/de active Pending
- 1973-04-26 JP JP48046837A patent/JPS4967625A/ja active Pending
- 1973-04-26 IT IT2345373A patent/IT984143B/it active
Also Published As
Publication number | Publication date |
---|---|
SE363906B (pl) | 1974-02-04 |
FR2187135A5 (pl) | 1974-01-11 |
GB1429992A (en) | 1976-03-31 |
JPS4967625A (pl) | 1974-07-01 |
DE2321219A1 (de) | 1973-11-08 |
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