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1. (WO2018198643) IMAGE ACQUISITION DEVICE, INSPECTION DEVICE, TABLET PRINTING DEVICE, AND IMAGE ACQUISITION METHOD

Pub. No.:    WO/2018/198643    International Application No.:    PCT/JP2018/012423
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Mar 28 01:59:59 CEST 2018
IPC: A61J 3/06
Applicants: SCREEN HOLDINGS CO., LTD.
株式会社SCREENホールディングス
SHASHIN KAGAKU CO.,LTD.
株式会社写真化学
Inventors: KUWABARA Akira
桑原 章
SHIRASAKI Hiroyoshi
白崎 浩良
NAKANO Nobuyuki
中野 信行
Title: IMAGE ACQUISITION DEVICE, INSPECTION DEVICE, TABLET PRINTING DEVICE, AND IMAGE ACQUISITION METHOD
Abstract:
This image acquisition device comprises a conveyance mechanism, an epi-lighting unit (71), a transmitted illumination unit (72), and an imaging unit (73). The conveyance mechanism conveys a tablet (9) by moving a conveyance belt (12) while the tablet (9) is suctioned and held at a suction hole (14) provided on the conveyance belt (12). The epi-illumination unit (71) emits light toward the tablet (9) from the side of the conveyance belt (12) with the surface (12a) whereon the tablet (9) is held. The transmitted illumination unit (72) emits light toward the tablet (9) from the reverse surface (12b) of the conveyance belt (12). When the imaging unit (73) captures images, both the epi-illumination unit (71) and the transmitted illumination unit (72) emit light. This makes it possible to brightly illuminate both the portion of the tablet (9) which overlays the suction hole (14) when viewed from the imaging unit (73) and the portion which does not overlay the suction hole (14). Accordingly, the tablet (9) that is light-transmissive can be clearly imaged.