Reflection refuting laser scanner

A system comprising:

• a laser source configured to project polarized light onto a metallic part, the metallic part to cast multiple reflections following projection of the polarized light, wherein the projected polarized light has a first polarity, wherein a first-order reflection from the multiple reflections has a second polarity that is substantially similar to the first polarity, and wherein a second-order reflection from the multiple reflections has a third polarity that is substantially different from the first polarity;
• a detector configured to detect:
• the first-order reflection based on the second polarity, and
• the second-order reflection based on the third polarity;
• and
• a controller communicatively coupled to the detector and the laser source, the controller configured to filter the second-order reflection based at least in part on a difference in the second polarity and the third polarity.

A system comprising:

• a first laser unit configured to generate first polarized light having a first polarity;
• a second laser unit configured to generate second polarized light having a second polarity, the second polarity being orthogonal to the first polarity;
• an optical lens configured to receive the first polarized light and transmit a first laser line at a first location on a metallic object, the first laser line having a polarity that is substantially similar to the first polarity,
• wherein:
• the optical lens is also configured to receive the second polarized light and transmit a second laser line at the first location on the metallic object, wherein the second laser line has a polarity that is substantially similar to the second polarity, and
• wherein a first-order reflection of the first laser line has a third polarity that is substantially similar to the first polarity, and wherein a second-order reflection of the first laser line has a fourth polarity that is substantially different from the first polarity, and
• wherein a first-order reflection of the second laser line has a fifth polarity that is substantially similar to the second polarity, and wherein a second-order reflection of the second laser line has a sixth polarity that is substantially different from the second polarity;
• a detector including a camera having an optical filter coupled thereto, the optical filter configured to pass through more light having the first polarity than the second polarity;
• and
• a controller communicatively coupled to the camera, the controller configured to instruct the detector to:
• generate the first polarized light at a first time window and capture a first one or more images of the metallic object during the first time window, wherein the first one or more images captured during the first time window includes the first-order reflection of the first laser line having a first intensity and the second-order reflection of the first laser line having a second intensity;
• generate the second polarized light at a second time window and capture a second one or more images of the metallic object during the second time window, wherein the second one or more images captured during the second time window includes the first-order reflection of the second laser line having a thief intensity and the second-order reflection of the second laser line having a fourth intensity;
• and
• identify the second-order reflection of the first laser line and second-order reflection of the second laser line based at least in part on a difference between the second intensity and fourth intensity.