Title:
【発明の名称】半導体発光装置およびその応用製品
Document Type and Number:
Japanese Patent JP2645862
Kind Code:
B2
Abstract:
A collimated-beam generating device using a semiconductor laser includes a two-lens system in which light converged by a first lens is converted into a collimated beam by a second lens, whereby a distance between the semiconductor laser and the first lens is made large, assembly of the device is made easy, and a collimated beam having a small beam diameter can be produced.
Inventors:
YAGYU YASUTOSHI
KUMAZAWA TETSUO
SHIMAOKA MAKOTO
AIKI KUNIO
KUMAZAWA TETSUO
SHIMAOKA MAKOTO
AIKI KUNIO
Application Number:
JP20062288A
Publication Date:
August 25, 1997
Filing Date:
August 11, 1988
Export Citation:
Assignee:
HITACHI SEISAKUSHO KK
International Classes:
G02B6/42; H01L33/58; H01S5/00; (IPC1-7): H01L33/00; H01S3/18
Domestic Patent References:
| JP60213069A | ||||
| JP61255312A | ||||
| JP61135309U |
Attorney, Agent or Firm:
Unuma Tatsuyuki