| 摘要 |
PROBLEM TO BE SOLVED: To provide an angle adjustment instrument of a lighting fixture that can set an irradiating angle of each fixture ad designed and that can obtain a totally averaged brightness value in a tunnel. SOLUTION: A reflecting mirror is supported at the inner part of a body 1 of a lighting fixture whose front surface is opened and a supporting arm 10 is also arranged capable of adjusting the angle of illuminator at the outside wall of the body of the lighting fixture. Furthermore, the reflecting mirror is structured to freely adjust an angel so that it can vary the irradiating angle from the outer part of the body of the fixture and also the front end opening part of the reflecting mirror is detachably arranged with a laser point 20 to fine adjust the angle of the reflecting mirror. |
