Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B26
HAND CUTTING TOOLS; CUTTING; SEVERING
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B26F
PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
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2210/00
Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
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B26F2210/08
of ceramic green sheets, printed circuit boards and the like
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B26F2210/08

Resin sheet producing method, optical member produced by resin sheet producing method, area light source device in which optical member is used, liquid crystal display device, and mobile device
09618180 · 2017-04-11 · ·

An area light source device has a transfer-molded optical member, and a light source disposed in a position facing at least one of end faces of the optical member. Light incident to the optical member from the light source is output through a light exit surface of the optical member. A cutting back clearance portion is provided in at least one of corner portions of the end face of the optical member.