Title:
LIGHT QUANTITY ADJUSTMENT APPARATUS
Document Type and Number:
Japanese Patent JP2016139136
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light quantity adjustment apparatus.SOLUTION: A light quantity adjustment apparatus comprises a case having a through-hole, a first link freely rotatable with respect to the case, a drive part for rotating the first link, a first advancing blade and a second advancing blade connected to one end and the other end of the first link respectively and disposed linearly movably in the case, a second link connected to one of the first and second advancing blades and freely rotatable with respect to the case, a first rotary blade freely rotatably coupled to the case so as to rotate between a position at which the through-hole is closed and a position at which the through-hole is opened and connected to the first link, and a second rotary blade freely rotatably coupled to the case so as to rotate between the position at which the through-hole is closed and the position at which the through-hole is opened and connected to the second link.SELECTED DRAWING: Figure 1
Inventors:
MIYAGAWA MASAE
Application Number:
JP2016011246A
Publication Date:
August 04, 2016
Filing Date:
January 25, 2016
Export Citation:
Assignee:
HANWHA TECHWIN CO LTD
International Classes:
G03B9/02; G03B9/06
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Shinya Mitsuhiro