Title:
TRANSPARENT MEMBER HAVING SCATTERING PLANE INSIDE, METHOD FOR MANUFACTURING THE SAME, AND IMAGING DEVICE EQUIPPED THEREWITH
Document Type and Number:
Japanese Patent JP2009237136
Kind Code:
A
Abstract:
To provide: a transparent member for constituting a finder optical system capable of preventing an observation view field from getting worse, even when a foreign matter such as dust gets mixed in; a method for manufacturing the same; and an imaging device equipped with the transparent member.
The present invention relates to: the transparent member for constituting the finder optical system, having a scattering face in its inside; and the method for manufacturing the transparent member that forms a scattering face by fine cracks caused by a nonlinear absorption phenomenon of a transparent base material generated when converging a laser beam of high intensity in the inside of the transparent member to be irradiated therewith.
Inventors:
YAMADA KAZUHIRO
HIRUNUMA KEN
TAKUSHIMA SHUSUKE
SHIOKAWA TAKANOBU
HIRUNUMA KEN
TAKUSHIMA SHUSUKE
SHIOKAWA TAKANOBU
Application Number:
JP2008081652A
Publication Date:
October 15, 2009
Filing Date:
March 26, 2008
Export Citation:
Assignee:
HOYA CORP
International Classes:
G03B13/24; G02B5/02
Attorney, Agent or Firm:
Takaishi Tachibana