Burner for producing glass fine particles

Details Burner for producing glass fine particles Burner for producing glass fine particles

C - Chemistry, Metallurgy

03

B

49/9

C03B 37/014 (2006.01) C23C 16/44 (2006.01) F23D 14/22 (2006.01)

Patent

CA 1268339

ABSTRACT OF THE DISCLOSURE A burner for producing glass fine particles provided with an inter- mediate passage between a central passage and an outer passage for sur- rounding the periphery of the central passage characterized by that the end of the intermediate passage is disposed inner side from the end of the outer passage and the end of the central passage is disposed between the end of the intermediate passage and the end of the outer passage. Thus, the burner can stably fabricate porous glass base material having GI type or triangular refractive index distribution and yet can suppress the production of bubbles. - 10 -

509982

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