LENS BARREL AND OPTICAL AXIS ADJUSTMENT METHOD

LENS BARREL AND OPTICAL AXIS ADJUSTMENT METHOD

Lens barrel (10) includes first group lens frame unit (11), second group lens frame unit (12), lens frame (16), insertion hole (11c), and depressions (11ab, 16ca). First group lens frame unit (11) holds lenses (L1 to L3). Second group lens frame unit (12) holds lens (L5). Lens frame (16) is disposed...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HASEGAWA, Atsushi, IKEO, Kenji
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:Lens barrel (10) includes first group lens frame unit (11), second group lens frame unit (12), lens frame (16), insertion hole (11c), and depressions (11ab, 16ca). First group lens frame unit (11) holds lenses (L1 to L3). Second group lens frame unit (12) holds lens (L5). Lens frame (16) is disposed between first group lens frame unit (11) and second group lens frame unit (12) on an inner circumference side of first group lens frame unit (11) through radial clearance (G). Insertion hole (11c) is provided on an outer peripheral surface of first group lens frame unit (11), and a jig of lens frame (16) is inserted into insertion hole (11c). Depressions (11ab, 16ca) are provided at a position accessible from an outside in a state where first group, second group lens frame units (11), (12) and lens frame (16) are assembled, and fix lens frame (16) to first group lens frame unit (11).