Quarton, Inc.

Tony Kuo-Ti Chen

Chao-Chi Huang

Der-Shyang Jan

Kuo-Tso Chen

Wan-Rone Liou

A laser extender is provided for accurately elongating a reference line. The laser extender includes a housing, a battery set, and a laser unit. The housing has an external basic flat plane for resting upon a flat surface and having a straight edge that is adapted to be aligned with a reference line, an internal accommodating space, and a plurality of through holes for accessing the internal accommodating space from the exterior of the housing. The battery set is provided inside the internal accommodating space. The laser unit, utilizing power provided by the battery set, is located inside the internal accommodating space for generating a spanning plane laser beam perpendicular to the basic flat plane of the housing and for extending the reference line defined by the straight edge. In addition, the laser extender can engage a beam leveler for enhancing the leveling ability of the laser extender.

Laser extender

An apparatus for measuring the speed of an object includes a first laser source for emitting a first laser plane at an intended path, and a second laser source for emitting a second laser plane at the intended path, with the second laser source positioned from the first laser source at a known distance. The apparatus further includes a detector system positioned to receive a first laser light and a second laser light that have been reflected from the first laser plane and the second laser plane, respectively, upon reflection of the first and second laser planes off the object. The detector system generates a first pulse signal and a second pulse signal, respectively, in response to the receipt of the first and second laser lights, respectively. The apparatus also includes a signal processing circuit coupled to the detector system for calculating the speed of an object passing through the intended path based on the first and second pulse signals generated by the detector system.

Growing community of inventors

Ping Chen, Taiwan

Tony Kuo-Ti Chen