LIGHT GUIDE SHEET AND SWITCH DEVICE USING THE SAME

LIGHT GUIDE SHEET AND SWITCH DEVICE USING THE SAME

PROBLEM TO BE SOLVED: To provide a light guide sheet having grooves of light shielding lines formed along the edge, easily preventing the deformation/breakage of the sheet at terminal portions of the grooves of the light shielding lines.SOLUTION: The light shielding line 13 and the inside light shie...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: OBA KATSUICHI, ISHIMORI INE
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a light guide sheet having grooves of light shielding lines formed along the edge, easily preventing the deformation/breakage of the sheet at terminal portions of the grooves of the light shielding lines.SOLUTION: The light shielding line 13 and the inside light shielding line 15 are formed along the edge 10d of the light guide sheet 10 which is formed of a translucent urethane resin. Colored light shielding agent is filled inside the light shielding lines 13, 15. The light shielding line 13 has a bent portion 13c, and the terminal portion 13a formed at a position apart from the edge 10d of the sheet, and so the edge 10d of the light guide sheet 10 can be cut while easily preventing the deformation/breakage of the urethane resin between the terminal portion 13a and the edge 10d.