NL147858B - DEVICE FOR EXAMINATION OF A GEMSTONE. - Google Patents

DEVICE FOR EXAMINATION OF A GEMSTONE.

Info

Publication number
NL147858B
NL147858B NL707009528A NL7009528A NL147858B NL 147858 B NL147858 B NL 147858B NL 707009528 A NL707009528 A NL 707009528A NL 7009528 A NL7009528 A NL 7009528A NL 147858 B NL147858 B NL 147858B
Authority
NL
Netherlands
Prior art keywords
gemstone
examination
Prior art date
Application number
NL707009528A
Other languages
Dutch (nl)
Other versions
NL7009528A (en
Original Assignee
Yoshihiko Takubo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshihiko Takubo filed Critical Yoshihiko Takubo
Publication of NL7009528A publication Critical patent/NL7009528A/xx
Publication of NL147858B publication Critical patent/NL147858B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/87—Investigating jewels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/38—Concrete; ceramics; glass; bricks
    • G01N33/381—Concrete; ceramics; glass; bricks precious stones; pearls
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
NL707009528A 1969-08-24 1970-06-29 DEVICE FOR EXAMINATION OF A GEMSTONE. NL147858B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1969080406U JPS5015597Y1 (en) 1969-08-24 1969-08-24

Publications (2)

Publication Number Publication Date
NL7009528A NL7009528A (en) 1971-02-26
NL147858B true NL147858B (en) 1975-11-17

Family

ID=13717397

Family Applications (1)

Application Number Title Priority Date Filing Date
NL707009528A NL147858B (en) 1969-08-24 1970-06-29 DEVICE FOR EXAMINATION OF A GEMSTONE.

Country Status (8)

Country Link
US (1) US3740142A (en)
JP (1) JPS5015597Y1 (en)
BE (1) BE752563A (en)
DE (2) DE7023622U (en)
FR (1) FR2062134A5 (en)
GB (1) GB1301537A (en)
IL (1) IL34748A (en)
NL (1) NL147858B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT344419B (en) * 1973-03-20 1978-07-25 Dihaco Diamanten Handels Co DEVICE FOR DETERMINING THE EVALUATION DATA OF COLORED GEMS, IN PARTICULAR DIAMONDS
IL43465A (en) * 1973-10-23 1976-12-31 Yeda Res & Dev Gem identification
US3985454A (en) * 1975-03-14 1976-10-12 Nasa Window defect planar mapping technique
US4763986A (en) * 1986-11-24 1988-08-16 Sego Marvin A Illuminated jeweler's loupe
JPH06103268B2 (en) * 1989-02-17 1994-12-14 金作 山下 Instrument for observing brilliance of jewels such as diamond and method for photographing jewels using the instrument
EP0442065B1 (en) * 1990-02-15 1997-07-23 Kinsaku Yamashita Instrument for observing jewels brilliance as diamond, and method of taking photographs with said instrument
JPH06103269B2 (en) * 1990-07-06 1994-12-14 金作 山下 Observing or photographing gems such as diamonds and equipment
US5422711A (en) * 1993-10-18 1995-06-06 Can; Hanna Gem viewing and manipulation apparatus
GB2317693B (en) * 1995-07-24 1999-10-06 Gersan Ets Examining a diamond
GB2303699A (en) * 1995-07-24 1997-02-26 Gersan Ets A method and apparatus for detecting layers of synthetic diamond
US5835205A (en) * 1996-02-12 1998-11-10 C3, Inc. Optical testing system for distinguishing a silicon carbide gemstone from a diamond
US6450402B1 (en) 1999-05-05 2002-09-17 T.I.D. (The Identifying Diamond) Inc. Identification device
US6308891B1 (en) 1999-05-05 2001-10-30 T.I.D. (The Identifying Diamond) Inc. Jewelry identification
US7000760B2 (en) * 2003-04-03 2006-02-21 Lau Anson W Jewelry box with a viewer
US7193694B2 (en) * 2005-05-02 2007-03-20 William Underwood Method for grading gemstone cut and symmetry
US20080041734A1 (en) * 2005-09-22 2008-02-21 Bergelson Alan P Jewelry display apparatus
US20120268728A1 (en) * 2011-04-20 2012-10-25 GemEx Systems, Inc., a Wisconsin corporation Gem positioning and analysis system
BE1021617B1 (en) * 2013-01-23 2015-12-18 Osmana, Besloten Vennootschap Met Beperkte Aansprakelijkheid DEVICE FOR VIEWING JEWELRY
US10054550B2 (en) 2014-08-08 2018-08-21 Empire Technology Development Llc Spectroscopic determination of optical properties of gemstones
WO2016185472A1 (en) 2015-05-21 2016-11-24 Sarine Color Technologies Ltd. System and method of unique identifying a gemstone
GB2551133A (en) * 2016-06-06 2017-12-13 De Beers Uk Ltd Gemstone viewer
GB2603820A (en) * 2021-02-10 2022-08-17 John Mepham Tony Gemmology spectrum absorption light enhancer for spectroscope

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700497A (en) * 1927-04-28 1929-01-29 Heitzler Frank Apparatus for use in identifying precious stones
US2742813A (en) * 1952-10-17 1956-04-24 Zeininger Henry Percy Projection apparatus for displaying precious stones
SU122613A1 (en) * 1958-05-14 1958-11-30 С.А. Бородин Photogoniometer
US3160748A (en) * 1962-06-28 1964-12-08 Frank L Chan Spherical goniometer head and adapter

Also Published As

Publication number Publication date
DE2031065A1 (en) 1971-03-04
BE752563A (en) 1970-12-01
IL34748A (en) 1973-08-29
DE7023622U (en) 1974-01-03
FR2062134A5 (en) 1971-06-25
IL34748A0 (en) 1970-08-19
JPS5015597Y1 (en) 1975-05-15
GB1301537A (en) 1972-12-29
US3740142A (en) 1973-06-19
NL7009528A (en) 1971-02-26

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: TAKUBO