FI20030143A0 - DDT-type laser lighter - Google Patents
DDT-type laser lighterInfo
- Publication number
- FI20030143A0 FI20030143A0 FI20030143A FI20030143A FI20030143A0 FI 20030143 A0 FI20030143 A0 FI 20030143A0 FI 20030143 A FI20030143 A FI 20030143A FI 20030143 A FI20030143 A FI 20030143A FI 20030143 A0 FI20030143 A0 FI 20030143A0
- Authority
- FI
- Finland
- Prior art keywords
- detonating
- pulse
- laser
- ddt
- frame structure
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/113—Initiators therefor activated by optical means, e.g. laser, flashlight
Abstract
Laser detonator (3) of DDT-type (Deflagration to Detonation Transition) that comprises at least a frame structure (4, 5) and a detonating material (7) placed inside the frame structure, as well as an optical input arranged in the frame structure to guide a detonating pulse, i.e. laser pulse to the detonating material (7). The detonating material (7) of the laser detonator (3) is in an overpressurized state when compared to the normal air pressure to reduce the energy of the detonating pulse required for igniting the detonating material. Furthermore, the invention relates to a detonating system comprising at least the above-described laser detonator (3) as well as a control unit (1) for producing a laser pulse, i.e. the detonating pulse and an optical fiber (2) connecting the laser detonator and the control unit. <IMAGE>
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20030143A FI112702B (en) | 2003-01-31 | 2003-01-31 | DDT-type laser lighter |
NO20040272A NO20040272L (en) | 2003-01-31 | 2004-01-21 | Laser detonator type DDT |
SE0400133A SE0400133D0 (en) | 2003-01-31 | 2004-01-23 | Laser detonator or DDT type |
AT04397005T ATE412161T1 (en) | 2003-01-31 | 2004-01-29 | LASER INITIATED IGNITION |
EP04397005A EP1443297B1 (en) | 2003-01-31 | 2004-01-29 | Laser detonator |
DE602004017238T DE602004017238D1 (en) | 2003-01-31 | 2004-01-29 | Laser-initiated detonator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20030143A FI112702B (en) | 2003-01-31 | 2003-01-31 | DDT-type laser lighter |
FI20030143 | 2003-01-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20030143A0 true FI20030143A0 (en) | 2003-01-31 |
FI112702B FI112702B (en) | 2003-12-31 |
Family
ID=8565487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20030143A FI112702B (en) | 2003-01-31 | 2003-01-31 | DDT-type laser lighter |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1443297B1 (en) |
AT (1) | ATE412161T1 (en) |
DE (1) | DE602004017238D1 (en) |
FI (1) | FI112702B (en) |
NO (1) | NO20040272L (en) |
SE (1) | SE0400133D0 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PE20060926A1 (en) | 2004-11-02 | 2006-09-04 | Orica Explosives Tech Pty Ltd | ASSEMBLIES OF WIRELESS DETONATORS, CORRESPONDING BLASTING APPLIANCES AND BLASTING METHODS |
MX2009009804A (en) | 2007-03-16 | 2009-11-09 | Orica Explosives Tech Pty Ltd | Initiation of explosives materials. |
CN102435109A (en) * | 2011-10-21 | 2012-05-02 | 中国科学技术大学 | Laser initiation flyer type initiating explosive-free detonator |
CN102679887A (en) * | 2012-05-28 | 2012-09-19 | 广东宏大爆破股份有限公司 | Automatic basic detonator grain height detection and waste rejection device and method |
RU2493603C1 (en) * | 2012-06-19 | 2013-09-20 | Открытое акционерное общество "Информационные спутниковые системы" имени академика М.Ф. Решетнева" | Device for control and demolition of ignition cylinders |
CN103673795A (en) * | 2014-01-03 | 2014-03-26 | 安徽理工大学 | Primary explosive-free laser detonator |
US11131530B2 (en) | 2018-01-29 | 2021-09-28 | Lawrence Livermore National Security, Llc | Opto-thermal laser detonator |
PE20201435A1 (en) | 2018-03-08 | 2020-12-09 | Orica Int Pte Ltd | SYSTEMS, APPARATUS, DEVICES AND METHODS TO INITIATE OR DETONATE TERTIARY EXPLOSIVE MEDIA USING PHOTONIC ENERGY |
CN111707152B (en) * | 2020-06-29 | 2022-07-01 | 南京邮电大学 | Multipoint blasting system based on optical fiber energy supply and working method |
CN112229557B (en) * | 2020-09-14 | 2022-04-05 | 中国石油天然气股份有限公司 | Detonator axial output pressure testing assembly with connecting pipe |
CN112945032A (en) * | 2021-03-31 | 2021-06-11 | 电子科技大学 | Microwave ignitor for artillery |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3812783A (en) * | 1972-08-03 | 1974-05-28 | Nasa | Optically detonated explosive device |
US4898095A (en) * | 1986-10-20 | 1990-02-06 | Nippon Oil And Fats Company, Limited And Kajima Corporation | Laser beam-detonatable blasting cap |
US5099761A (en) * | 1991-01-28 | 1992-03-31 | The United States Of America As Represented By The Secretary Of The Army | Laser actuated thru-bulkhead initiator |
US6276276B1 (en) * | 1999-08-19 | 2001-08-21 | The United States Of America As Represented By The United States Department Of Energy | Thin-film optical initiator |
-
2003
- 2003-01-31 FI FI20030143A patent/FI112702B/en not_active IP Right Cessation
-
2004
- 2004-01-21 NO NO20040272A patent/NO20040272L/en not_active Application Discontinuation
- 2004-01-23 SE SE0400133A patent/SE0400133D0/en unknown
- 2004-01-29 AT AT04397005T patent/ATE412161T1/en not_active IP Right Cessation
- 2004-01-29 DE DE602004017238T patent/DE602004017238D1/en not_active Expired - Lifetime
- 2004-01-29 EP EP04397005A patent/EP1443297B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1443297B1 (en) | 2008-10-22 |
FI112702B (en) | 2003-12-31 |
NO20040272L (en) | 2004-08-02 |
EP1443297A1 (en) | 2004-08-04 |
SE0400133D0 (en) | 2004-01-23 |
DE602004017238D1 (en) | 2008-12-04 |
ATE412161T1 (en) | 2008-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |