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`1. An illumination switch device comprising;
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`a push button having an internal space and an opening;
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`5
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`a plurality of indicator lenses each having a liner columnar shape,
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`the indicator lenses being juxtaposed in the internal space of the push
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`button such that longer axes of the indicator lenses are parallel with one
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`another;
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`a holder configured to hold the push button, the push button being
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`10 movable in a longitudinal direction of each indicator lens;
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`a detector configured to detect a displacement of the push button in the
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`longitudinal direction;
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`a plurality of light emitters respectively disposed opposite one ends of
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`the indicator lenses in the longitudinal direction; and
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`a base including an opaque resin,
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`the base covering all side faces of the indicator lenses while being in
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`tight contact with the all side faces except a part of the one ends and a part of
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`another ends of the indicator lenses,
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`the base being integrated with the indicator lenses.
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`2O
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`2. The illumination switch device according to claim 1, wherein
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`each of the one ends of the indicator lenses has a width-narrowed
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`portion narrower than a portion except the width-narrowed portion in a width
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`as seen in a section perpendicular to the longitudinal direction and a
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`juxtaposition direction of each indicator lens, and
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`the base covers the all side faces in the width-narrowed portions except
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`the part of the one ends of the indicator lenses,
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`the illumination switch device further comprising
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`a light blocking wall disposed between adjoining two of the light
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`emitters,
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`the light blocking wall having one end located beside the width-
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`narrowed portions.
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`3. The illumination switch device according to claim 1, wherein
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`adjoining two spaces of the indicator lenses are filled with the base.
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`4. The illumination switch device according to claim 2, wherein
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`adjoining two spaces of the indicator lenses filled with the base.
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`5. The illumination switch device according to claim 2, wherein
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`one of two dent is deeper than another dent in depth of the two dents
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`narrowing from the portion except the width-narrowed portion,
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`the one of two dent being facing one of adjoining indicator lenses out of
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`the plurality of indicator lenses and the another of two dent being not facing
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`other of the plurality of indicator lenses.
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`6. The illumination switch device according to claim 5, wherein
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`the two dent are same in depth of the two dents narrowing from the
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`portion except the width-narrowed portion,
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`when both of two dent being facing adjoining indicator lenses out of the
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`plurality of indicator lenses.
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