ApplicationNo. 06/342231 filed on 01/25/1982
US Classes:235/462.35, Having a transmissive optical element (e.g., lens, prism, or aperture)235/435, CODED RECORD SENSORS235/462.07, Means to decode multiple types or formats of bar code symbols (e.g., UPC, JAN, EAN, etc.)235/462.29, Noise reduction circuit (e.g., electrical filters)235/462.45Hand-held (e.g., portable)
ExaminersPrimary: Pitts, Harold I.
Attorney, Agent or Firm
International ClassesG06K 7/10 (20060101)
G06K 17/00 (20060101)
AbstractA narrow-bodied, single-and twin-windowed, hand-held, laser scanning head for reading bar code symbols includes at least one window mounted at the rear region of the head, and through which either the incident beam going to the symbol and/or the reflected beam returning from the symbol, passes unobstructedly and exteriorly of, and past, the front and intermediate body regions of the head. A field-replaceable laser tube arrangement, a laser tube and method of making the same, an arrangement for and method of controlling a scanning system, optical passive elements for increasing the depth of field, a trigger protective device, and a one-piece support bench and method of fabricating the same by mass-production techniques are also disclosed.
Field of SearchCODED RECORD SENSORS