120i レンズ用カメラ用チューブ

• 業界の標準的システムより最大で43%小型化
• 1.1型センサーまでに最適化した性能
• ライフサイエンスや産業用アプリケーションに最適
• 2023年度 Bronze VSD Innovators Award を受賞

EO 120i Plan APO 無限補正対物レンズは、400-700nmにわたって卓越した像面平坦度と色補正を行う無限補正対物レンズです。この対物レンズは、1.1型センサー用にデザインされ、高スループットのイメージングアプリケーション用に広い視野と信頼ある画質を提供します。顕微鏡検査、フローサイトメトリー、医薬品検査、および組立ラインや故障検査といったライフサイエンスやマシンビジョンアプリケーションに最適です。

本対物レンズは、2023年度 VSD Innovators Award の Bronze アワードを獲得しました。

Technical Note: Why Numerical Aperture Does Not Define Performance

Numerical aperture (NA) is an important specification to define for a microscope objective because it describes the objective’s ability to gather light at a fixed working distance. The NA is often assumed to describe an objective’s resolving power; however, this is not an accurate assumption. The equation below is the first-order equation used to calculate NA. This equation is useful for understanding NA on-axis, but it does not consider field changes for off-axis performance. In addition, this equation does not consider tolerances during the manufacturing and assembly of microscope objectives that can impact the performance.

n: refractive index of imaging medium

θ: one-half of the objective’s opening angle

Figure 1 below demonstrates the off-axis performance of the 5X 120i Plan APO Infinity Corrected Objective compared to another 5X Plan APO infinity corrected objective from another manufacturer that has the same NA of 0.14. Performance off-axis is better with the 120i Objective in the corner of a 1.1” sensor, indicating that NA is not the defining factor for the performance of an objective.

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