Title:
LENS BARREL COMPONENT, OPTICAL EQUIPMENT, AND METHOD FOR MANUFACTURING LENS BARREL COMPONENT
Document Type and Number:
Japanese Patent JP2019194018
Kind Code:
A
Abstract:
To provide a lens barrel component constituted with a carbon fiber reinforced resin, having an excellent strength such as anti-impact performance, being a small size, thin and light weight, and provided with a high-grade appearance.SOLUTION: A thermoplastic resin consolidates and combines carbon fiber braid layers 3 and 5 braided cylindrically and endlessly in the circumferential direction and a one-direction prepreg sheet layer 4 comprising a carbon fiber orientated in one direction to configure a cylindrical body 1. The braid layer 3 (or 5) is braided into an endless cylindrical shape in the circumferential direction in a state in which the one-direction prepreg sheet layer 4 is located in the middle on a mandrel.SELECTED DRAWING: Figure 1
Inventors:
KIKUCHI WATARU
Application Number:
JP2019084730A
Publication Date:
November 07, 2019
Filing Date:
April 25, 2019
Export Citation:
Assignee:
CANON KK
International Classes:
B29C70/10; B29C69/02; B29C70/32; B29C70/74; B32B1/08; B32B5/26; B32B27/12; B32B27/36; G02B7/02; G03B11/04
Domestic Patent References:
| JP2017136687A | 2017-08-10 | |||
| JPH09277391A | 1997-10-28 | |||
| JPS63205327A | 1988-08-24 |
Attorney, Agent or Firm:
Kazuo Chikajima
Takashi Daejeon
Takashi Daejeon