The mark consists of on top, there is a stylized circle divided in half with alternating colors of black and white. Directly below the circle is a thick horizontal line. Directly below this line is the word "ONUS" in all capitalized letters, spanning the length of the horizontal line. Directly below this is another identical thick horizontal line, parallel to the first line. Directly below this is the word "OPTICS" in smaller font, centered.
Color is not claimed as a feature of the mark.