Title: Glass body having a fluorescent pattern inwardly of a surface thereof

Abstract: A glass body having a fluorescent pattern inwardly of a surface thereof is formed by depositing a first material in a predetermined pattern on a surface of glass containing readily ion-exchangeable first ions, the first material containing second ions capable of ion-exchange with the first ions, one of the glass and the first material containing ions for providing a fluorescence center, and by causing the second ions to penetrate into the glass through ion-exchange with the first ions so that the fluorescence-center providing ions may be distributed in a pattern which is in positive or negative relationship with the predetermined pattern.

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Inventors: Ichimura, Takeo (Tokyo, JA)
Kaneko, Teruo (Tokyo, JA)

Application Number: 358467
Filing Date: 1973-05-09
Publication_date: 1976-03-16
Assignee: Nippon Kogaku K.K. (Tokyo, JA)
Primary Class(es): 428/210 65/30.13, 428/410, 428/913
Other Classes:
US Patent Ref:

2515275	Jul, 1950	Stookey	65/DIG.
2515937	Jul, 1950	Stookey	65/DIG.
3323926	Jun, 1967	O'Leary	65/30.
3419370	Dec, 1968	Cramer et al.	117/118.

Other Refs:
Primary Examiner: Weinblatt, Mayer
Assistant Examiner: Buffalow, Edith R.
Attorney: Fitzpatrick, Cella, Harper & Scinto