OPTICAL DEVICE, OPTICAL INFORMATION READING DEVICE AND LIGHT SOURCE UNIT MOUNTING METHOD
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United States of America Patent
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Issued Date -
Feb 16, 2012
app pub date -
Feb 1, 2011
filing date -
Aug 13, 2010
priority date (Note) -
Abandoned
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Abstract
When an optical module is manufactured, a module package is used in which a collimating lens is attached, and in which a pedestal is installed to arrange the laser light source unit so that the laser beam is outputted substantially parallel to the optical path passing through the optical axis of the collimating lens. First, the laser light source unit is attached to the pedestal using clips so that it can move only in the direction along the optical path. The laser light source unit is then moved in the direction along the optical path, and its position is adjusted so that the laser beam is parallel light from the collimating lens. Afterwards, the laser light source is secured to the pedestal using an adhesive so that it cannot move in the direction along the optical path.
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