FILTER FOR CAMERA AND ITS PRODUCTION

Title:

FILTER FOR CAMERA AND ITS PRODUCTION

Document Type and Number:

Japanese Patent JPS5633630

Kind Code:

A

Abstract:

PURPOSE: To make possible automatic assembling and improve appearance by forming a frame ring into one body and stopping a filter plate by a detaining ring.

CONSTITUTION: A frame ring 10 having been formed into one body has recesses 11, 12, of two steps above and below in the rear part. A filter plate 13 is installed in the recess 12, and a detaining ring 14 is installed in the recess 11 above this, after which it is adhered by an adhesive agent 15 at the inside surface portion of the recess 12. Here, the frame ring 10 and the detaining ring 14 are formed by thermoplastic synthetic resin.

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Inventors:

MOTOMURA REIJI
OOTA HIROFUMI
MATSUURA TAKASHI
ITAYA YOSHI

Application Number:

JP10918179A

Publication Date:

April 04, 1981

Filing Date:

August 29, 1979

Export Citation:

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Assignee:

HOYA CORP

International Classes:

G03B11/00; G02B7/00; G02B7/02; (IPC1-7): G02B7/00; G03B11/00

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