Patent ID: 7455434

Claim:
An optical apparatus with dual illuminating devices, and the optical apparatus comprising a body having a top and a joint portion, the joint portion having a limit switch groove, and the limit switch groove having a first limit portion and a second limit portion apart away from the first limit portion; a first illuminating device mounted in the body and comprising a first lighting device; a second illuminating device comprising a pivoting arm and a second lighting device, the pivoting arm having a first end and a second end, and the first end pivotally mounted on the joint portion, and the second lighting device mounted on the second end whereby rotating the pivoting arm moves the second lighting device between a first position over the body and a second position underside the body; a limit switch mounted at the joint portion and comprising an activator extended into the limit switch groove at the second limit portion; and an activating pin mounted on the pivoting arm at the joint portion, extended into the limit switch groove and being movable between the first limit portion and the second limit portion; whereby when the rotating arm drives the second lighting device from the first position to the second position, the activating pin is simultaneously driven sliding along the limit switch groove from the first limit portion to the second limit portion to touch the activator of the limit switch to simultaneously turn off the second lighting device and turn on the first lighting device.