DE7323841U - Tageslicht-projektionsgeraet - Google Patents
Tageslicht-projektionsgeraetInfo
- Publication number
- DE7323841U DE7323841U DE19737323841U DE7323841U DE7323841U DE 7323841 U DE7323841 U DE 7323841U DE 19737323841 U DE19737323841 U DE 19737323841U DE 7323841 U DE7323841 U DE 7323841U DE 7323841 U DE7323841 U DE 7323841U
- Authority
- DE
- Germany
- Prior art keywords
- projection device
- light sources
- daduroh
- holder
- lamp
- 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
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 2
- 235000002020 sage Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19737323841U DE7323841U (de) | 1973-06-23 | 1973-06-23 | Tageslicht-projektionsgeraet |
| FR7344734A FR2234828A5 (enrdf_load_stackoverflow) | 1973-06-23 | 1973-12-14 | |
| CH586374A CH566020A5 (enrdf_load_stackoverflow) | 1973-06-23 | 1974-04-29 | |
| BE144230A BE814924A (fr) | 1973-06-23 | 1974-05-13 | Appareil de projection au jour |
| GB2127974A GB1421095A (en) | 1973-06-23 | 1974-05-14 | Overhead projector |
| NO741871A NO741871L (enrdf_load_stackoverflow) | 1973-06-23 | 1974-05-22 | |
| DK333674A DK333674A (enrdf_load_stackoverflow) | 1973-06-23 | 1974-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19737323841U DE7323841U (de) | 1973-06-23 | 1973-06-23 | Tageslicht-projektionsgeraet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7323841U true DE7323841U (de) | 1973-11-22 |
Family
ID=6639341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19737323841U Expired DE7323841U (de) | 1973-06-23 | 1973-06-23 | Tageslicht-projektionsgeraet |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE814924A (enrdf_load_stackoverflow) |
| CH (1) | CH566020A5 (enrdf_load_stackoverflow) |
| DE (1) | DE7323841U (enrdf_load_stackoverflow) |
| DK (1) | DK333674A (enrdf_load_stackoverflow) |
| FR (1) | FR2234828A5 (enrdf_load_stackoverflow) |
| GB (1) | GB1421095A (enrdf_load_stackoverflow) |
| NO (1) | NO741871L (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7628047U1 (de) * | 1976-09-08 | 1976-12-30 | Rollei-Werke Franke & Heidecke, 3300 Braunschweig | Stehbildprojektor |
| US5301094A (en) * | 1993-03-17 | 1994-04-05 | Minnesota Mining And Manufacturing Company | Lamp changing assembly for overhead projector |
-
1973
- 1973-06-23 DE DE19737323841U patent/DE7323841U/de not_active Expired
- 1973-12-14 FR FR7344734A patent/FR2234828A5/fr not_active Expired
-
1974
- 1974-04-29 CH CH586374A patent/CH566020A5/xx not_active IP Right Cessation
- 1974-05-13 BE BE144230A patent/BE814924A/xx unknown
- 1974-05-14 GB GB2127974A patent/GB1421095A/en not_active Expired
- 1974-05-22 NO NO741871A patent/NO741871L/no unknown
- 1974-06-21 DK DK333674A patent/DK333674A/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2234828A5 (enrdf_load_stackoverflow) | 1975-01-17 |
| BE814924A (fr) | 1974-09-02 |
| NO741871L (enrdf_load_stackoverflow) | 1975-01-20 |
| DK333674A (enrdf_load_stackoverflow) | 1975-02-10 |
| CH566020A5 (enrdf_load_stackoverflow) | 1975-08-29 |
| GB1421095A (en) | 1976-01-14 |
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