NL7906667A - Hoogspanningsfilmlicht en gloeilampeenheid voor gebruik daarbij. - Google Patents
Hoogspanningsfilmlicht en gloeilampeenheid voor gebruik daarbij. Download PDFInfo
- Publication number
- NL7906667A NL7906667A NL7906667A NL7906667A NL7906667A NL 7906667 A NL7906667 A NL 7906667A NL 7906667 A NL7906667 A NL 7906667A NL 7906667 A NL7906667 A NL 7906667A NL 7906667 A NL7906667 A NL 7906667A
- Authority
- NL
- Netherlands
- Prior art keywords
- region
- lamp
- curvature
- reflector
- diffusion
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US93993078 | 1978-09-06 | ||
US05/939,930 US4169237A (en) | 1978-09-06 | 1978-09-06 | High voltage movie light and incandescent lamp unit for use therewith |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7906667A true NL7906667A (nl) | 1980-03-10 |
Family
ID=25473952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7906667A NL7906667A (nl) | 1978-09-06 | 1979-09-06 | Hoogspanningsfilmlicht en gloeilampeenheid voor gebruik daarbij. |
Country Status (8)
Country | Link |
---|---|
US (1) | US4169237A (fr) |
JP (2) | JPS5537793A (fr) |
BE (1) | BE878597A (fr) |
CA (1) | CA1124220A (fr) |
DE (1) | DE2930764A1 (fr) |
FR (1) | FR2435665A1 (fr) |
GB (1) | GB2031575B (fr) |
NL (1) | NL7906667A (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3143776A1 (de) * | 1981-11-04 | 1983-05-11 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | "beleuchtungsvorrichtung fuer projektionseinrichtungen" |
JPS59111136A (ja) * | 1982-12-16 | 1984-06-27 | Wakomu Seisakusho:Kk | 映写用光源装置 |
US4499526A (en) * | 1983-08-25 | 1985-02-12 | General Electric Company | Lamp unit having glass reflector member with recessed base end |
CA1265840A (fr) * | 1985-10-29 | 1990-02-13 | Antonius J. Huijbers | Lampe a incandescence a ampoule a couche reflechissante annulaire et a filament en zigzag |
US4728849A (en) * | 1986-07-07 | 1988-03-01 | Gte Products Corporation | Capsule light source for electric lamp |
JPH0718087Y2 (ja) * | 1988-06-15 | 1995-04-26 | 松下電工株式会社 | 反射板 |
US6271629B1 (en) * | 2000-01-25 | 2001-08-07 | Vincent Mario Pace | Modular system for movie set lighting |
KR100810297B1 (ko) * | 2006-10-31 | 2008-03-06 | 삼성전자주식회사 | 휴대용 무선 단말기의 무선 통신 인터페이스 |
US20100140831A1 (en) * | 2008-12-05 | 2010-06-10 | Computerized Cutters, Inc. | Molded object-forming apparatus and method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2411568A (en) * | 1943-04-23 | 1946-11-26 | Gen Electric | Lamp unit |
US2387038A (en) * | 1943-09-15 | 1945-10-16 | Rca Corp | Reflector |
US2447923A (en) * | 1944-08-26 | 1948-08-24 | Holophane Co Inc | Lighting system and lighting units for use therein |
US2810660A (en) * | 1954-02-01 | 1957-10-22 | Westinghouse Electric Corp | Diffusing reflecting coating and method of preparing same |
US4021659A (en) * | 1975-10-30 | 1977-05-03 | General Electric Company | Projector lamp reflector |
US4035631A (en) * | 1975-12-15 | 1977-07-12 | General Electric Company | Projector lamp reflector |
-
1978
- 1978-09-06 US US05/939,930 patent/US4169237A/en not_active Expired - Lifetime
-
1979
- 1979-07-28 DE DE19792930764 patent/DE2930764A1/de not_active Withdrawn
- 1979-08-10 CA CA333,595A patent/CA1124220A/fr not_active Expired
- 1979-09-05 FR FR7922157A patent/FR2435665A1/fr active Granted
- 1979-09-05 BE BE2/58045A patent/BE878597A/fr unknown
- 1979-09-05 JP JP11304279A patent/JPS5537793A/ja active Pending
- 1979-09-05 GB GB7930805A patent/GB2031575B/en not_active Expired
- 1979-09-06 NL NL7906667A patent/NL7906667A/nl not_active Application Discontinuation
-
1983
- 1983-05-24 JP JP1983077082U patent/JPS5933034U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2435665A1 (fr) | 1980-04-04 |
DE2930764A1 (de) | 1980-03-20 |
FR2435665B1 (fr) | 1983-07-01 |
GB2031575B (en) | 1982-10-06 |
BE878597A (fr) | 1979-12-31 |
JPS5537793A (en) | 1980-03-15 |
US4169237A (en) | 1979-09-25 |
JPS5933034U (ja) | 1984-02-29 |
CA1124220A (fr) | 1982-05-25 |
GB2031575A (en) | 1980-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BV | The patent application has lapsed |