| 摘要 |
A light-emitting measurement device comprises a support body, a slider apparatus, and a light-emitting device. Measurement indicia are provided on a surface of the support body. The slider apparatus is movably attached to the support body. A pointing member of the slider apparatus is movable along a substantially straight longitudinal reference axis. The light-emitting device is attached to the pointing member. The laser light-emitting device emits light in a direction substantially perpendicular to the longitudinal reference axis. The support body is placed on a work-piece engagement surface that is substantially flat, and has a cutting device opening that extends through the work surface. The light-emitting device emits light in a direction that extends over the cutting device opening such that the pointing member is adjustable to a position whereby the light impinges upon a tip of a cutting device extending through the cutting device opening.
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