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US 2018/0093351 A1Published application
Recess-and-protrusion-formed body
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorsSatoshi ITO, Takashi YUURA, Mitsuru NARUSE
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Abstract
In a groove-formed body, a recess and protrusions are formed on a resin plate by irradiation with a laser. When forming the recess and the protrusions on the resin plate, the laser is irradiated onto the resin plate plural times. Irradiation of the laser onto the resin plate is thus temporarily paused to cool the resin plate, enabling the portion of the resin plate irradiated by the laser to be suppressed from igniting and enabling a depth dimension of the recess and a height dimension of the protrusions to be made larger.
Claims9
A recess-and-protrusion-formed body comprising:
- a resin body having thermoplastic properties;
- a recess that is formed in the resin body by a laser being irradiated onto the resin body and the resin body being cooled at at least one of a time when the laser is irradiated onto the resin body or a time when irradiation of the laser onto the resin body is paused;
- and
- a protrusion that is formed on the resin body at a side of the recess by forming the recess in the resin body.
1 more element
Dependencies are inferred from the claim text.