ANAMORPHIC LENS DEVICE AND LENS BARREL

Title:

ANAMORPHIC LENS DEVICE AND LENS BARREL

Document Type and Number:

Japanese Patent JPH0618756

Kind Code:

A

Abstract:

PURPOSE: To eliminate positional adjustment in a rotating direction in a group and to evade troublesome work in the case of adjustment after incorporating.

CONSTITUTION: The plural cylindrical lenses L1a, L2a and L3a of a focusing group and a group other than the focusing group, which form straight parts L1a, L2a and L3a at the optically identical position of an outer periphery, a front group lens barrel 2 and a rear group lens barrel 4 incorporating the lenses L1a, L2a and L3a, and barrels 8a, 8b and 8c inserted into a gap between the cylindrical lenses incorporated by deciding the direction by the straight parts L1a, L2a and L3a and the lens barrels 2 and 4 so as to position the cylindrical lenses are provided.

Inventors:

SUZUKI SHOJI
SEKIDA MAKOTO
KATO MASATAKE
KONNO YOSHIHIKO

Application Number:

JP27071992A

Publication Date:

January 28, 1994

Filing Date:

June 30, 1992

Export Citation:

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Assignee:

CANON KK

International Classes:

G02B7/02; G02B7/08; (IPC1-7): G02B7/02; G02B7/08

Attorney, Agent or Firm:

Takanashi Yukio

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