內窺鏡作為現代醫療與工業檢測領域的重要工具，其精度與可靠性直接關系到診斷結果或檢測數據的準確性。維修后是否需要重新校準，需結合設備特性、維修內容及使用場景綜合判斷。

　　As an important tool in modern medical and industrial testing fields, the accuracy and reliability of endoscopes are directly related to the accuracy of diagnostic results or testing data. Whether recalibration is required after maintenance needs to be comprehensively judged based on equipment characteristics, maintenance content, and usage scenarios.

　　內窺鏡的核心部件包括光學鏡頭、圖像傳感器、照明系統及傳動機構。光學鏡頭的曲率半徑、折射率等參數決定成像清晰度，圖像傳感器的響應曲線影響色彩還原，而照明系統的光譜分布則關聯組織辨識度。這些參數在出廠時均經過精密校準，確保各組件協同工作。維修過程中，若僅涉及外殼更換、密封圈更新等非核心部件操作，且未對光學系統或電子元件造成干擾，理論上可不重新校準。但實際操作中，拆卸過程可能引發鏡頭微位移、傳感器連接松動等隱性偏差，這類微小變化難以通過目視檢測，卻足以導致成像畸變或測距誤差。

　　The core components of an endoscope include an optical lens, an image sensor, an illumination system, and a transmission mechanism. The curvature radius, refractive index, and other parameters of optical lenses determine imaging clarity, the response curve of image sensors affects color reproduction, and the spectral distribution of illumination systems is associated with tissue identification. These parameters are precisely calibrated at the factory to ensure that all components work together. During the maintenance process, if it only involves non core component operations such as shell replacement and seal ring renewal, and does not cause interference to the optical system or electronic components, theoretically, recalibration is not necessary. However, in practical operation, the disassembly process may cause hidden deviations such as lens micro displacement and loose sensor connections. These small changes are difficult to visually detect, but can lead to imaging distortion or distance measurement errors.

　　當維修涉及核心部件時，校準成為必需環節。例如，更換物鏡或目鏡后，光學系統的焦距、視場角等參數可能改變，需通過專業設備調整鏡頭間距，確保成像平面與傳感器重合。圖像傳感器維修后，其增益、白平衡等參數需重新標定，以匹配光學系統特性。在醫療領域，內窺鏡的景深、視向角等參數直接關聯手術操作精度，維修后必須通過模擬人體組織的校準模型驗證性能。工業內窺鏡用于檢測精密零件時，其測距誤差需控制在±0.1毫米以內，維修后的幾何校準尤為關鍵。

　　When repairing core components, calibration becomes a necessary step. For example, after replacing the objective lens or eyepiece, the focal length, field of view angle, and other parameters of the optical system may change. It is necessary to adjust the lens spacing through professional equipment to ensure that the imaging plane coincides with the sensor. After repairing the image sensor, its gain, white balance and other parameters need to be recalibrated to match the optical system characteristics. In the medical field, the depth of field, viewing angle, and other parameters of endoscopes are directly related to the accuracy of surgical operations. After maintenance, the performance must be verified through a calibration model that simulates human tissue. When industrial endoscopes are used to detect precision parts, their distance measurement error needs to be controlled within ± 0.1 millimeters, and geometric calibration after maintenance is particularly critical.

　　校準流程通常包含三個階段。首先是環境準備，需在恒溫恒濕暗室中進行，避免外部干擾。其次是參數調整，利用標準分辨率板、色卡等工具，通過專用軟件修正鏡頭畸變、色彩偏差。最后是性能驗證，使用模擬病灶或標準缺陷樣本，確認設備能準確識別臨界尺寸特征。某些高端設備還需進行三維重建校準，確保空間測量精度。

　　The calibration process typically consists of three stages. Firstly, environmental preparation should be carried out in a constant temperature and humidity darkroom to avoid external interference. Next is parameter adjustment, using tools such as standard resolution boards and color cards to correct lens distortion and color deviation through specialized software. Finally, performance validation is conducted using simulated lesions or standard defect samples to confirm that the device can accurately identify critical size features. Some high-end devices also require 3D reconstruction calibration to ensure spatial measurement accuracy.

　　不重新校準可能帶來多重風險。醫療內窺鏡若存在未校正的色差，可能導致組織邊界模糊，增加誤診概率。工業檢測中，未校準的測距功能可能使裂紋深度評估偏差超過50%，引發質量誤判。在極端情況下，光學系統失準可能導致照明光斑偏移，造成檢測盲區，錯過關鍵缺陷。

　　Not recalibrating may bring multiple risks. If there is uncorrected color difference in medical endoscopes, it may lead to blurred tissue boundaries and increase the probability of misdiagnosis. In industrial testing, the uncalibrated distance measurement function may cause a deviation of over 50% in crack depth assessment, leading to quality misjudgment. In extreme cases, misalignment of the optical system may cause the illumination spot to shift, resulting in blind spots in detection and missing critical defects.

　　實際案例中，某三甲醫院因未對維修后的腹腔鏡進行校準，導致術中出血點定位延遲，手術時間延長40分鐘。某航空發動機檢測機構因內窺鏡維修后未校準測距功能，未能發現葉片0.3毫米級的微小裂紋，最終引發部件失效。這些案例均凸顯校準的必要性。

　　In a practical case, a tertiary hospital delayed the localization of intraoperative bleeding points and prolonged the surgery time by 40 minutes due to the failure to calibrate the repaired laparoscope. A certain aircraft engine testing agency failed to calibrate the distance measurement function of the endoscope after maintenance, and was unable to detect tiny cracks on the blade at the 0.3mm level, ultimately leading to component failure. These cases highlight the necessity of calibration.

　　建議維修后采取分層校準策略。常規保養后，可僅進行基礎功能測試；若涉及核心部件維修，必須執行完整校準流程。對于關鍵應用場景，建議建立校準周期檔案，結合設備使用頻次與維修記錄，動態調整校準頻次。同時，選擇具備CNAS認證資質的校準機構，確保流程符合ISO 17025標準，保障校準結果的可追溯性與權威性。

　　Suggest adopting a layered calibration strategy after maintenance. After routine maintenance, only basic functional tests can be conducted; If core component maintenance is involved, a complete calibration process must be carried out. For key application scenarios, it is recommended to establish a calibration cycle file and dynamically adjust the calibration frequency based on equipment usage frequency and maintenance records. At the same time, choose a calibration institution with CNAS certification qualifications to ensure that the process complies with ISO 17025 standards and guarantees the traceability and authority of calibration results.

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