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Home  > About OHARA  > Factory Tour  > Factory
 
Annealing
 
Mixing Raw Material

Melting

Rough Annealing

Inspection of Material

Adjustment

Pressing Operation

Annealing

Inspection of Products

Products which use optical glasses in
 

 
Pressed glass and strip shape glass are put into the electric annealing ovens, and are heated slowly. After heating process, they are cooled slowly. By doing so, internal strain of glass is reduced and refractive indices are adjusted.
 

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