DROPLET DISPENSING DEVICE

• Main Authors: YOKOYAMA SHUHEI, HIGUCHI MASAAKI, SHIMIZU SEIYA, KUSUNOKI RYUTARO
• Format: Patent
• Language: English; Japanese
• Published: 18.10.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a droplet dispensing device which can prevent wrong evaluations.SOLUTION: The droplet dispensing device includes: a droplet injection unit; a light emitting unit; a light receiving unit; a droplet detection unit; and a discharge timing adjusting unit. The droplet injection unit includes a plurality of nozzle groups for injecting a solution, which line side by side, and injects a droplet to a receiving unit for receiving a droplet. The light emitting unit is arranged in a direction perpendicular to the passage of droplets discharged from the nozzle groups of the droplet injection unit. The light receiving unit is provided in a direction horizontal to the light emitting unit, and is arranged in a position opposite to the light emitting unit with respect to the passage of droplets. The droplet detection unit is arranged so that the optical path between the light emitting unit and the light receiving unit is obliquely inclined to the direction in which the nozzle groups are lined, and detects a droplet discharged from a nozzle by reduction in the amount of light received by the light receiving unit when the droplet shields light. The discharge timing adjusting unit adjusts the timings of discharge of droplets from the nozzle groups to be varied on the nozzle group-by-nozzle group basis.SELECTED DRAWING: Figure 7 【課題】 誤評価を防止することができる液滴分注装置を提供する。【解決手段】 液滴分注装置は、液滴噴射部と、発光部と、受光部と、液滴検出部と、吐出タイミング調整部とを具備する。液滴噴射部は、溶液を吐出する複数のノズル群を横一列に並設させるとともに液滴を受ける受部に向けて液滴を噴射する。発光部は、液滴噴射部のノズル群から吐出される液滴の軌道と直交方向に配置される。受光部は、発光部の水平方向に設けられ、液滴の軌道に対し、発光部と反対側位置に配置される。液滴検出部は、発光部と受光部との間の光路をノズル群の並設方向に対して斜めに傾斜させて配置し、液滴が遮光するとき受光部の受光量が低下することでノズルから吐出される液滴を検出する。吐出タイミング調整部は、複数のノズル群からの液滴の吐出タイミングをノズル群毎に異なるタイミングに調整する。【選択図】図７