Patent ID: 8881554

Claim:
An optical fiber preform manufacturing apparatus comprising: a booth; a reaction chamber disposed inside the booth; a target member disposed within the reaction chamber; a burner that deposits glass particles on the target member; a partition plate that partitions the internal space of the booth into a first space where the reaction chamber and the burner are disposed and a second space, and that has a plurality of through holes that allows the first space and the second space to communicate with each other, the plurality of through holes being formed over the whole surface of the partition plate; an air supply unit that supplies clean air into the first space; and an exhaust unit that discharges air within the second space, wherein the first space and the second space are arranged in order toward the direction of gravitational force, and the air supply unit is adjacent to the first space and disposed above the burner, and flow of air supplied from the air supply unit goes to the second space from the first space.