LIGHT SHIELDING BLADE VANE MATERIAL FOR OPTICAL APPARATUS

摘要

PROBLEM TO BE SOLVED: To ameliorate the insufficiency of the rigidity of a direction orthogonally intersecting fibers of a light shielding blade vane of a laminated structure which consists of a plastic film as a core material and reinforces both surfaces of the film with reinforcing layers containing continuous fibers. SOLUTION: The light shielding blade vane for optical apparatus has the laminated structure which consists of the plastic film 1 as a base material and is disposed with reinforcing members 4 on both surfaces thereof. The reinforcing members 4 are formed by laminating and curing thermosetting resins reinforced by the continuous fibers paralleled nearly to one direction. The plastic film 1 consists of a liquid crystal polymer film crystal oriented in one direction. The reinforcing members 4 disposed on both surfaces of the base material are parallel to each other in directions where the continuous fibers are paralleled. The liquid crystal polymer film 1 has the direction of its crystal orientation orthogonally intersecting the directions where the continuous fibers are paralleled. Light shielding coating films 2 exist between the liquid crystal polymer film 1 and the reinforcing members 4. Lubricating black coating films 3 are formed on the surfaces of the reinforcing members 4.