公开(公告)号：JPH02250011A

公开(公告)日：1990-10-05

申请号：JP28600589

申请日：1989-11-01

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： MAAKU KURITSUSHIEBAA ,  YUURII GOOFUMAN

IPC: G02B7/00 ,  G02B7/02 ,  G02B7/04 ,  G02B27/00 ,  G02B27/62 ,  G06K7/10 ,  H01S5/00

Abstract: PURPOSE: To provide a comparatively inexpensive and lightweight convergent module for a divergent light source by providing the module with a 1st aperture for restricting a circular part for receiving a laser diode assembly and a 2nd aperture end for restricting a 2nd circular part having diameter smaller than that of the 1st circular part. CONSTITUTION: A diode holder 30 has the 1st circular part 35 and the 2nd circular part 31 having shorter diameter than the 1st circular part 35. A lens holder 40 is held in the holder 30. The 1st circular part 35 holds the flange 41 of the holder 40. The flange 41 has a diameter larger than that of the 2nd circular part 31 and the holder 40 is prevented from being rotated around the center axis of the holder 30 due to the existence of a notch 49 in the flange 41 of the holder 40 which is cooperated with a groove 32 formed in the 1st circular part 35. Consequently an highly accurate focusing or convergent module having inexpensive structure can be obtained.

公开(公告)号：JPH0348378A

公开(公告)日：1991-03-01

申请号：JP28283989

申请日：1989-10-30

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： MAAKU KURISHIEBAA ,  YUURII GOOFUMAN ,  HAWAADO EMU SHIEPAADO ,  EDOWAADO BAAKAN

IPC: G06K7/01 ,  G06K7/10

Abstract: PURPOSE: To miniaturize a device by converting light of variable intensity reflected from a marker to an electric analog signal by a sensor means and converting this signal to a digital signal to transmit it. CONSTITUTION: Conical light condensed in a head 10 by a condenser mirror 19a passes a laser light-transmissive member along an optical path 21b and is reflected by the sensor means, for example, a photosensor 17. A signal processing means on a circuit board 16 processes the electric analog signal generated by the sensor 17 to generate a digitized video signal. This signal is sent to a decoding/control means 101 through a cable 15. Thus, the device is miniaturized.