公开(公告)号：JPH03179579A

公开(公告)日：1991-08-05

申请号：JP33686790

申请日：1990-11-30

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： JIEROOMU SUWAATSU ,  HAWAADO EMU SHIEPAADO ,  ERITSUKU EFU BAAKAN ,  MAAKU JIEI KURICHIBAA ,  BORISU METORITOSUKII ,  EDOWAADO BAAKAN ,  AREKISANDAA EMU ADERUSON

IPC: G02B26/10 ,  G06K7/00 ,  G06K7/10 ,  G11B7/12 ,  G11B7/135 ,  H01S5/00 ,  H04N1/028 ,  H04N1/107 ,  H04N1/113

Abstract: PURPOSE: To realize a symbol reader which can be connected to an external system by properly interchangeably attaching plural housing parts to a first housing part where a light source, optical means, and sensor means are arranged. CONSTITUTION: One of elements in a head 10 is an active laser light source consisting of, for example, a semiconductor laser diode 42. A laser beam passes an aperture stop 56 and goes backward along an optical axis 102 in the head 10 and is made incident on a practically flat scanning mirror 66 and is reflected by this mirror. The mirror 66 energized by a trigger 32 is repeatedly moved back and forth or oscillatorily and linearly sweeps so that the laser beam traverses all of bars consisting of a symbol. A feedback part of the reflected laser beam is condensed by a concave condenser mirror 76 to form a convergent beam in a conical condensing optical path. The mirror 76 reflects the conical convergent light into the head 10 along an optical path 116 and passes a laser transmission element 78 along a second optical path and is made incident on a sensor means like a photo sensor 80, thus generating an electric analog signal.

公开(公告)号：JPS61251980A

公开(公告)日：1986-11-08

申请号：JP4513886

申请日：1986-02-28

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： JIEROOMU SUWAATSU ,  HAWAADO EMU SHIEPAADO ,  ERITSUKU EFU BAAKAN ,  MAAKU JIEI KURICHIBAA ,  BORISU METORITOSUKII ,  EDOWAADO BAAKAN ,  AREKISANDAA EMU ADERUSON

IPC: G02B26/10 ,  G06K7/00 ,  G06K7/10 ,  G11B7/12 ,  G11B7/135 ,  H01S5/00 ,  H04N1/028 ,  H04N1/107 ,  H04N1/113