| 摘要 |
To provide a bicycle lighting device that brightens side portions in which brightened positions in the side portions are not limited as much as possible, and light in the side portions and light in a front portion can be distinguished. A headlight 14 includes: an outer case member 20 ; a lens member 22 ; an inner case member 24 ; a light emitting portion 26 ; a reflective member 28 ; and a light escaping portion 30 . The outer case member is a member that is securable to a bicycle, and includes a housing space 41 formed therein, a first opening 42 placed in a front surface, and a second opening 43 placed in a side surface. The lens member is a translucent member that covers the first opening. The inner case member is a translucent member that is at least partially placed in the housing space of the outer case member and covers the second opening from the inside. The light emitting portion is placed in the inner case member. The reflective member is a member that is placed in the inner case body and reflects light from the light emitting portion toward the lens member. The light escaping portion is able to cause the light emitted from the light emitting portion to escape toward the inner case member.
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