Laser oscillator

Details Laser oscillator Laser oscillator

2006-12-12

2006-12-12

Menefee, James (Department: 2828)

Coherent light generators

Particular active media

Gas

Reexamination Certificate

active

07149237

ABSTRACT:
A laser oscillator capable of preventing contamination of optical components by organic matter such as oil mist. Gas laser medium in an optical resonator constituted by optical components is pumped by an electric discharge generated in an electric discharge tube to produce a laser beam. The gas medium flows at high speed in the electric discharge tube incorporated in a circulating path including a blower. A part of lubrication oil of the blower is evaporated and mixed into the gas medium. Since the optical components are cooled by retaining mechanisms to prevent temperature rise of the components and a gas stagnation occurs between the optical component and the electric discharge tube, the evaporated oil mist tends to be congealed and adhered to a surface of the optical component. A photocatalyst arranged in the vicinity of the optical component effectively decomposes and removes the oil mist.

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Notice of Grounds for Rejection (Office Action) with English translation.

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