GB1258228A - - Google Patents
Info
- Publication number
- GB1258228A GB1258228A GB1258228DA GB1258228A GB 1258228 A GB1258228 A GB 1258228A GB 1258228D A GB1258228D A GB 1258228DA GB 1258228 A GB1258228 A GB 1258228A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conducting layers
- gap
- groove
- insulating body
- bulb
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
- F21K5/02—Light sources using charges of combustible material, e.g. illuminating flash devices ignited in a non-disrupting container, e.g. photo-flash bulb
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
1,258,228. Flash-bulbs. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct.9, 1970 [Oct. 13, 1969], No.48158/70. Heading G2L. A photo flash-bulb has a body 1 of electrically insulating material through which two lead-in conductors 2, 3, pass to two respective electrically conducting layers 4 which are provided on one surface of the insulating body 1 and separated from one another by a gap, an ignition mass 6 being provided on the conducting layers and over the gap between them. The gap is preferably in the form of a groove 7 in the insulating body but may have various configurations, Figs, 1, 3, 4 and 5 (not shown). Where a groove is present the conducting layers extend down the vertical sides but not across the bottom of the groove. The conducting layers 4 may be of metal or SnO 2 or In 2 O 3 , applied by any known method, and the insulating body 1 may be of glass. The bulb has a zirconium wire filling 9 in an oxygen atmosphere in a glass body 8.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6915476A NL6915476A (en) | 1969-10-13 | 1969-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1258228A true GB1258228A (en) | 1971-12-22 |
Family
ID=19808105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1258228D Expired GB1258228A (en) | 1969-10-13 | 1970-10-09 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3685947A (en) |
| BE (1) | BE757411A (en) |
| DE (1) | DE2048720A1 (en) |
| FR (1) | FR2065258A5 (en) |
| GB (1) | GB1258228A (en) |
| NL (1) | NL6915476A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3873261A (en) * | 1973-11-16 | 1975-03-25 | Gen Electric | Photoflash lamp |
| US4025285A (en) * | 1975-10-28 | 1977-05-24 | Gte Sylvania Incorporated | Photoflash lamp |
| US4097220A (en) * | 1976-09-16 | 1978-06-27 | General Electric Company | Flash lamp array having shorting lamps |
| US4278420A (en) * | 1979-07-16 | 1981-07-14 | Gte Products Corporation | Photoflash lamp, method of making same, and photoflash circuit |
| US4311453A (en) * | 1980-05-05 | 1982-01-19 | Gte Products Corporation | High voltage flashlamp with ignition means including a plurality of spark gap members |
| US4341513A (en) * | 1980-05-05 | 1982-07-27 | Gte Products Corporation | Subminiature photoflash lamp having light-emitting pyrotechnic charge |
| US4659308A (en) * | 1985-12-10 | 1987-04-21 | Gte Products Corporation | Photoflash lamp with improved primer |
| US4614494A (en) * | 1985-12-10 | 1986-09-30 | Gte Products Corporation | Primer insulating base |
| US4696641A (en) * | 1986-08-11 | 1987-09-29 | Gte Products Corporation | Primer material and photoflash lamp |
| FR2775070B1 (en) * | 1998-02-16 | 2000-04-28 | Aerospatiale | DEVICE FOR TRANSMITTING INFRARED RADIATION |
| DE10223524A1 (en) * | 2002-05-27 | 2003-12-24 | Trw Repa Gmbh | Method for producing a device containing pyrotechnic material and a device obtainable by the method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2771765A (en) * | 1954-09-01 | 1956-11-27 | Westinghouse Electric Corp | Photoflash lamp |
| US3224236A (en) * | 1963-07-15 | 1965-12-21 | Ment Jack De | Noble gas flash lamp and laser light source |
| NL151491B (en) * | 1966-09-30 | 1976-11-15 | Philips Nv | COMBUSTION FLASHLIGHT. |
-
0
- BE BE757411D patent/BE757411A/en unknown
-
1969
- 1969-10-13 NL NL6915476A patent/NL6915476A/xx unknown
-
1970
- 1970-10-03 DE DE19702048720 patent/DE2048720A1/en active Pending
- 1970-10-05 US US77801A patent/US3685947A/en not_active Expired - Lifetime
- 1970-10-09 FR FR7036553A patent/FR2065258A5/fr not_active Expired
- 1970-10-09 GB GB1258228D patent/GB1258228A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6915476A (en) | 1971-04-15 |
| US3685947A (en) | 1972-08-22 |
| BE757411A (en) | 1971-04-13 |
| FR2065258A5 (en) | 1971-07-23 |
| DE2048720A1 (en) | 1971-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |