Non-Contact Visual Measurement Device

摘要

A positional measuring device has a reference laser pointer and at least one measurement laser pointer. These laser pointers are positioned at a first end and a second end of a variable-length defining mechanism, a common example being a tape measure. The lasers are oriented in a direction which is perpendicular to the measurement axis of a user-specified length of the variable-length defining mechanism. The emission axis of each laser is thus parallel with each other. The lasers project onto a remote object. The laser pointers provide visual reference points that help a user ensure they are correctly measuring dimensions of an object. The distance between the laser pointers can easily be read via the variable-length defining mechanism. Because the lasers need to be parallel to each other and perpendicular to the user-specified length, a dual-axis liquid level is provided to ensure proper orientation of the positional measuring device.

主权项

1. A non-contact visual measurement device comprises:
a positional measuring device; a reference laser pointer; an at least one measurement laser pointer; said positional measuring device comprises a variable-length defining mechanism; said variable-length defining mechanism comprises a first end and a second end, wherein variable-length defining mechanism is used to measure a user-specified length; said first end and said second end being adjustably positioned opposite to each other along said user-specified length; said reference laser pointer being mounted onto said first end; an emission axis for said reference laser pointer being positioned perpendicular to said user-specified length; said measurement laser pointer being mounted onto said second end an emission axis for said measurement laser pointer being positioned perpendicular to said user-specified length; said emission axis for said reference laser pointer and said emission axis for said measurement laser pointer being positioned parallel to each other; and said emission axis for said reference laser pointer and said emission axis for said measurement laser pointer being oriented in the same direction.