| 摘要 |
A flashlight comprises an electrically-conductive cylindrical housing having a reduced inner diameter portion, for example, a tapered portion, and a hole at a forward end thereof with a solid state light source projecting through the hole at the forward end thereof and a tail cap attached to the housing at a rearward end thereof. A switch in the tail cap selectively connects the solid state light source and at least one battery in the housing in circuit through the housing for causing the solid state light source to produce light. The light source makes electrical contact with the housing at a contact area at which an insulating coating has been removed. The housing of the flashlight is formed by forming a reduced inner diameter portion in a cylindrical housing tube having an insulating coating and removing the insulating coating from the inner surface of the reduced inner diameter portion of the housing to provide the contact area.
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