Vacuum heating furnace with tapered portion

Details Vacuum heating furnace with tapered portion Vacuum heating furnace with tapered portion

1998-05-22

2000-07-25

Jeffery, John A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219411, 392416, 118724, 118 501, 373112, 110336, 432247, H01L 2122

Patent

active

060939117

ABSTRACT:
A vacuum heating furnace comprises a translucent container for retaining a heated object and a heating light source for heating a heated object retained in the translucent container. The translucent container has on its surface a tapered portion to receive transmitted light totally reflected on the inner surface of the translucent container at an angle smaller than a critical angle.

REFERENCES:
patent: 4411619 (1983-10-01), Darnell et al.

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