| 摘要 |
PROBLEM TO BE SOLVED: To reduce molding cost and parts cost by producing an entire lens (colored transparent cover) in a monochromatic color. SOLUTION: Orange light emitting LEDs 13A and an incandescent bulb 12A are placed inside a red transparent cover 18. When the incandescent bulb 12A emitting light with a wide wave length range is turned on, red light colored by the cover 18 is projected outward. When the orange light emitting LEDs 13A with a narrow light emitting spectrum are turned on, monochromatic light (orange light) is projected outward through the cover 18. |
