SIGNAL LAMP

摘要

PROBLEM TO BE SOLVED: To prevent a pseudo lighting due to the irradiation with a strong light such as afternoon sunlight. SOLUTION: A colorless lens (colorless smoked lens 3) is used as a front lens to be arranged on the front side of an incandescent lamp 1 and the lamp 1 is coated with a colored cover 4 colored by a signal color such as red, blue or yellow. It is also available to use a color bulb capable of radiating light of a signal color such as red, blue or yellow as a substitution for the incandescent lamp and the colored cover.