Optical member coupling device and optical scanning apparatus

An optical scanning apparatus includes a light source (20) to generate a beam, a lens (30/40/50) to transmit the beam generated from the light source (20), and a base member (10) to which the lens (30/40/50) is fixed, wherein the lens (30/40/50) is fixed to the base member (10) via a mount member (8...

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Bibliographic Details
Main Author TAHK, GYUNG MO
Format Patent
LanguageEnglish
French
German
Published 31.12.2008
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An optical scanning apparatus includes a light source (20) to generate a beam, a lens (30/40/50) to transmit the beam generated from the light source (20), and a base member (10) to which the lens (30/40/50) is fixed, wherein the lens (30/40/50) is fixed to the base member (10) via a mount member (80) having a same coefficient of thermal expansion as the lens (30/40/50). According to the present general inventive concept, an optical member, such as the lens (30/40/50), is not directly joined to the base member (10) but is joined to the mount member (80) having the same coefficient of thermal expansion as the optical member and is then coupled to the base member (10). Consequently, the optical member is stably coupled to the base member (10) even when the temperature changes.
Bibliography:Application Number: EP20080157867