tapeline for easy to right angle marking

摘要

PURPOSE: A tape measure facilitating a right angle marking using an optical power is provided to comprise a calculation part into a body to easily divide a measured value into a predetermined value or convert the measured value into a different unit so that a user easily can use a tape measure without a separate circulator. CONSTITUTION: A tape measure(1) facilitating a right angle marking using an optical power comprises a light emitting diode(21), a reflective plate(22), a rotary member, and a light output part(20). The light emitting diode arranged in the inner upper part of the housing irradiates lights to a direction where a measuring point is discharged. The reflective plate is arranged in the outer isde of the light emitting diode, thereby fixing the light emitting diode. The reflective plate diffuses the lights irradiated from the light emitting diode. The rotary member rotates the reflective plate. The light output part comprises a power supply unit(24) supplying power to the light emitting diode.