CH471398A - Illumination device for illuminating the film window of a film projector - Google Patents
Illumination device for illuminating the film window of a film projectorInfo
- Publication number
- CH471398A CH471398A CH132468A CH132468A CH471398A CH 471398 A CH471398 A CH 471398A CH 132468 A CH132468 A CH 132468A CH 132468 A CH132468 A CH 132468A CH 471398 A CH471398 A CH 471398A
- Authority
- CH
- Switzerland
- Prior art keywords
- film
- illuminating
- illumination device
- window
- projector
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/02—Incandescent bodies
- H01K1/14—Incandescent bodies characterised by the shape
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6701519.A NL156827B (en) | 1967-02-01 | 1967-02-01 | PROJECTION UNIT, CONSISTING OF A CONDENSER MIRROR AND A HALOGEN BULB. |
Publications (1)
Publication Number | Publication Date |
---|---|
CH471398A true CH471398A (en) | 1969-04-15 |
Family
ID=19799186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH132468A CH471398A (en) | 1967-02-01 | 1968-01-29 | Illumination device for illuminating the film window of a film projector |
Country Status (7)
Country | Link |
---|---|
US (1) | US3488543A (en) |
AT (1) | AT272840B (en) |
CH (1) | CH471398A (en) |
DE (1) | DE1278233B (en) |
FR (1) | FR1557948A (en) |
GB (1) | GB1143914A (en) |
NL (1) | NL156827B (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3700881A (en) * | 1971-04-29 | 1972-10-24 | Gen Electric | Lamp and reflector assembly |
DE2249630C2 (en) * | 1972-07-05 | 1984-04-12 | Robert Bosch Gmbh, 7000 Stuttgart | Pressure-tight headlight for automobiles |
US3936686A (en) * | 1973-05-07 | 1976-02-03 | Moore Donald W | Reflector lamp cooling and containing assemblies |
DE2323520A1 (en) * | 1973-05-10 | 1974-11-28 | Bosch Gmbh Robert | GAS-TIGHT HEADLIGHT FOR VEHICLES |
NL7507227A (en) * | 1975-06-18 | 1976-12-21 | Philips Nv | BULB REFLEKTOR UNIT. |
US4156271A (en) * | 1976-05-05 | 1979-05-22 | General Electric Company | Reflector lamp |
NL179433C (en) * | 1976-06-21 | 1986-09-01 | Philips Nv | ELECTRIC LAMP. |
HU183426B (en) * | 1981-05-08 | 1984-05-28 | Egyesuelt Izzolampa | Projecting lamp consisting of incandescent lamp and condensor mirror mounted rigidly to the lamp |
US4499526A (en) * | 1983-08-25 | 1985-02-12 | General Electric Company | Lamp unit having glass reflector member with recessed base end |
EP0420214A3 (en) * | 1989-09-27 | 1991-08-28 | Toshiba Lighting & Technology Corporation | Lamp device and method of bonding mirror reflector to lamp |
EP0470496A3 (en) * | 1990-08-07 | 1992-08-26 | Toshiba Lighting & Technology Corporation | Incandescent lamp and reflector type projection lamp |
JPH06160766A (en) * | 1992-11-25 | 1994-06-07 | Canon Inc | Projection type display device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2233486A (en) * | 1939-12-13 | 1941-03-04 | Michael P Portnow | Headlight |
CH238312A (en) * | 1943-02-08 | 1945-07-15 | Texis Societe Anonyme Textile | Process for the production of artificial structures from cellulose or cellulose derivative xanthates. |
US3390262A (en) * | 1965-05-24 | 1968-06-25 | Sylvania Electric Prod | Multizone high power light reflector |
US3365604A (en) * | 1965-12-01 | 1968-01-23 | Sylvania Electric Prod | Projection reflector lamp |
US3381575A (en) * | 1965-12-03 | 1968-05-07 | Sylvania Electric Prod | Electric projection lamp |
DE3417717C2 (en) * | 1984-05-12 | 1987-02-26 | HOLTEC Gölz, Sänger & Massierer GmbH & Co KG, 5374 Hellenthal | Device for transporting and measuring round wood |
-
1967
- 1967-02-01 NL NL6701519.A patent/NL156827B/en not_active IP Right Cessation
- 1967-03-01 DE DEN30084A patent/DE1278233B/en active Pending
-
1968
- 1968-01-25 US US700479A patent/US3488543A/en not_active Expired - Lifetime
- 1968-01-29 GB GB4440/66A patent/GB1143914A/en not_active Expired
- 1968-01-29 AT AT84768A patent/AT272840B/en active
- 1968-01-29 CH CH132468A patent/CH471398A/en not_active IP Right Cessation
- 1968-02-01 FR FR1557948D patent/FR1557948A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL156827B (en) | 1978-05-16 |
FR1557948A (en) | 1969-02-21 |
AT272840B (en) | 1969-07-25 |
DE1278233B (en) | 1968-09-19 |
GB1143914A (en) | 1969-02-26 |
US3488543A (en) | 1970-01-06 |
NL6701519A (en) | 1968-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |