| 摘要 |
PROBLEM TO BE SOLVED: To see a cover lens and a point light source aggregate through the cover lens at a non-lighting time by forming the image of the point light source aggregate on the front side of the cover lens in a looking direction. SOLUTION: A signal lighting fixture 1 is composed of a cover lens 5 on which a hologram 6 is provided and which is transparent and plain, and a point light source aggregate 7 which is provided on the approximately whole surface of the looking direction back face side of the cover lens 5. The point light source aggregate 7 is provided at such a location as an image is formed on the looking direction front side of the cover lens 5 by the hologram 6. Accordingly, the point light source aggregate 7 is seen through the cover lens 5 at a non-lighting time, and the image of the point light source aggregate 7 is protruded by The hologram 6 from the cover lens 5 at a lighting time. |
