Title:
MARKER
Document Type and Number:
WIPO Patent Application WO/2017/146097
Kind Code:
A1
Abstract:
This marker comprises: a plurality of convex surfaces (121) that are formed of a translucent material and that are disposed at least along an X direction; and a plurality of to-be-detected parts which are disposed at front/rear positions with respect to the plurality of convex surfaces (121) and which are projected onto the plurality of convex surfaces (121) as optically detectable images. The plurality of to-be-detected parts are disposed so as to be positioned on the same virtual plane which is perpendicular to a Z direction of the marker. The virtual plane is positioned between a focal point (F) on an image plane (B) of the convex surface (121) in the Z direction and a high point (F') of the image plane.
Inventors:
SAITO TOMOHIRO
Application Number:
PCT/JP2017/006595
Publication Date:
August 31, 2017
Filing Date:
February 22, 2017
Export Citation:
Assignee:
ENPLAS CORP (JP)
International Classes:
G01B11/00; G01B11/26; G02B3/06; G03B35/00
Foreign References:
| US6369949B1 | 2002-04-09 | |||
| JP2013025043A | 2013-02-04 | |||
| JP2010534352A | 2010-11-04 | |||
| JP2012145559A | 2012-08-02 | |||
| JP2013025043A | 2013-02-04 | |||
| JP2012145559A | 2012-08-02 |
Other References:
"BASIC OPTICS FOR USER ENGINEER", OPTRONICS CO., LTD, pages: 106 - 107
See also references of EP 3421927A4
See also references of EP 3421927A4
Attorney, Agent or Firm:
WASHIDA, Kimihito (JP)
Download PDF: