Feasa光學采光頭是為瞭保證測試LED光強度的穩定性而設計的，小巧而堅固，提供高精度和高重復性的光源采集，其解決如下問題：
The Feasa Optical Heads have been designed to ensure stability in testing the intensity of LEDs. The robust and compact design delivers consistant and repeatable readings, + 1mm with <10% Intensity change. They address the following issues:
•光纖固定困難Compensation for LED Placement
•重復精度不高Repeatable Intensity Readings
•環境光的幹擾，導致光源采集的靈敏度下降Reduced sensitivity to ambient light
配套光學采光頭的使用Using the Optical Heads ：
OH-2用於高度受限制的情況下。
OH-2is used when height is restricted.
OH-3用於大多數情況下。
OH-3is suitable for most applications.
OH-4用於90°彎腳或者橫插LED的情況下。
OH-4is ideal for testing 90° side emitting LEDs.
OH-5用於元器件密集的PCB板或者相鄰LED間距小的情況下。
OH-5is most suitable when LEDs are close together on Printed Circuit Boards.
OH-6用於直徑較大的LED和檢測高亮LED，特別適合於環境光較亮的情況下。
OH-6has a large diameter, 8.00mm and is used with large diameter LEDs. Designed for testing High Brightness LEDs, particularly suitable for Daytime Running Lights.
OH-7LT用於LED壽命測試儀
OH-7LTis used with the LED Life Tester.
OH-8IR用於紅外線LED測試儀
OH-8IRis used withe the IR LED Tester.
註：為瞭保證光源采集的精度，采光頭與被測LED的距離盡量保持在3mm至5mm之間，可根據實際情況適當調整。
The typical gap between the LED being tested and the Optical Head is between 3mm and 5mm but may vary significantly depending on the application.
SPECIFICATIONS參數：
型號 Model and Type | 直徑（外徑） Outer Diameter | 長度/高度 Length/Height | 安裝安全距離（中心到中心） Distance Centre to Centre |
OH-2 OH-7LT OH-8IR | 4.55mm 4.55mm 4.55mm | 25.00mm 39.00mm 50.00mm | 5.00mm 5.00mm 5.00mm |
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