Title:
OBSERVATION EQUIPMENT AND OBSERVATION METHOD FOR JEWELS
Document Type and Number:
WIPO Patent Application WO/2017/119072
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing observation equipment for jewels that is capable of observing the luminance and flaws in jewels as well as a pattern appearing in a reflective image of the jewels. The observation equipment is for observing a transparent jewel with a cut surface and is characterized in that: the observation equipment comprises a main body part 1 having a magnifying lens 12, and a tube body 2 connected to the main body part 1; the tube body 2 includes a transparent tube body 21 that allows natural light to pass through, and a light-shielding member 22 that shields natural light; and the light-shielding member 22 is configured to be movable along the axial direction of the transparent tube body 21.
Inventors:
SHIRAISHI SHU (JP)
KOGANEI TSUBASA (JP)
KOGANEI TSUBASA (JP)
Application Number:
PCT/JP2016/050174
Publication Date:
July 13, 2017
Filing Date:
January 05, 2016
Export Citation:
Assignee:
SHIRAISHI SHU (JP)
International Classes:
G02B25/04
Foreign References:
| JPH02290542A | 1990-11-30 | |||
| JP3088217U | 2002-09-06 | |||
| JP3103962U | 2004-08-26 | |||
| JP3125251U | 2006-09-14 | |||
| JP3138351U | 2007-12-27 | |||
| JPH06174648A | 1994-06-24 | |||
| JPS52129538A | 1977-10-31 |
Attorney, Agent or Firm:
TSUJITA, Tomoko (JP)
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