X-ray or gamma ray systems or devices – Photographic detector support – Dental
Patent
1989-05-18
1990-11-13
Arnold, Bruce Y.
X-ray or gamma ray systems or devices
Photographic detector support
Dental
378 43, 378 84, 378145, 350320, G02B 508
Patent
active
049697250
ABSTRACT:
An apparatus and method for finishing an X-ray mirror, having a substantially cylindrical mirror body and a reflecting mirror surface on the inner surface of the mirror body, includes a support post supporting the mirror body, and a male member which is inserted into an unfinished mirror body. The male member includes a chamber therein, an outer circumferential surface shaped in correspondence with the reflecting mirror surface, and a number of fine holes open to the outer circumferential surface. The male member is supported by a support section so that the outer circumferential surface faces the reflecting mirror surface with a required gap. An abrasive solution containing free abrasive grains is ejected toward the reflecting mirror surface from the outer circumferential surface of the male member through the fine holes, thereby polishing the reflecting mirror surface.
REFERENCES:
patent: 3352062 (1967-11-01), Conover
patent: 4063088 (1977-12-01), Dailey
patent: 4538291 (1985-08-01), Iwamatsu
patent: 4596030 (1986-06-01), Herziger et al.
Journal of the Japan Society of Precision Engineering, vol. 43, No. 5, May 1977, EEM (Elastic Emission Machining), Yuzo Mori et al.
Journal of the Japan Society of Precision Engineering, vol. 46, No. 6, Jun. 1980, "Elastic Emission Machining and the Finished Surface", Yuzo Mori.
Sumiya Mitsuo
Ueda Katsunobu
Arnold Bruce Y.
Kabushiki Kaisha Toshiba
Tran Tho Van
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