| 摘要 |
PROBLEM TO BE SOLVED: To allow a transparent blade of a light pipe in a car headlight to be easily assembled. SOLUTION: A car headlight (1000) includes a light source illuminating an end of a light pipe (1100). The light pipe includes a plurality of transparent blades (1110, 1120 and 1130) arranged in parallel and constituting a plurality of slanted reflective facets. The transparent blades are integrally adhered to each other with spaced adhesive dots. The respective adhesive dots have a diameter of 3 mm to 5 mm.
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