Lighting system for illuminating an i. c. engine combustion chamber, a chemical reaction vessel or a nuclear reactor

摘要

A lighting system comprises a fiber-optic cable (18) connected to a lighting head (46) which has a light guide rod (48) of pressure and/or temperature resistant material. A lighting system for illuminating an observation chamber (12), especially an observation chamber containing a high pressure and/or hot medium (14), comprises a fiber-optic cable (18) connecting a light source to a lighting head (46) which passes through an opening (70) in the observation chamber wall (16), the lighting head having a light guide rod (48) of pressure and/or temperature resistant material.