To provide a laser ignition device capable of achieving at least one of reduction of a number of lenses for collecting a leaser beam or reduction of the length in an optical axis direction in the laser ignition device compared to a laser ignition device of which surface on a side for taking out the laser beam in an output mirror is plane.
The laser ignition device for igniting fuel in a combustion chamber of an internal combustion engine is provided with a Q switch solid laser oscillator wherein the output mirror is one of a biconcave lens, a plano-concave lens and a meniscus concave lens, and the surface on the side for taking out the laser beam is a concave surface; and an output optical system for collecting the laser beam output from the Q switch solid laser oscillator in the combustion chamber.
| WO/2015/089369 | CONTROL SYSTEM FOR CORONA IGNITION POWER SUPPLY |
| WO/2017/073760 | IGNITION PLUG AND IGNITION DEVICE |
| JP5782591 | Gas processing equipment and internal combustion engine |
INOUE TAKAHARU
ISHIKAWA SHINJI
SHIOZAKI MANABU
SUMITOMO ELECTRIC INDUSTRIES
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