Views: 0 Author: Site Editor Publish Time: 2025-11-21 Origin: Site
As a manufacturer specializing in the R&D and production of endoscope camera modules, we often receive questions from customers: Why do two modules labeled with "1080P resolution, 1/4-inch CIS, 2-megapixel" have consistent core parameters but different models? Behind this lies the in-depth design considerations of module manufacturers based on medical scenario adaptation, supply chain management, and compliance requirements. Specifically, it can be explained from three aspects:
: Gastroscope modules require a diameter of ≤3mm to pass through the esophagus, while arthroscope modules allow a diameter of 5mm. Despite the same pixel count, the two have different lens packaging structures and PCB layouts, which need to be identified by different models.
Environmental Tolerance Design: Digestive endoscope modules need to resist gastric acid corrosion (using 316L stainless steel casings), while respiratory endoscope modules need to resist mucus adhesion (with different coating processes). These material and process differences are not reflected in basic parameters but require model differentiation to indicate applicable scenarios.
Fine-Tuning of Depth of Field and Field of View: For modules with the same parameters, laryngoscopes (for the narrow throat space) require a 120° wide field of view, while colonoscopes (for the intestinal tract) require an 80° field of view plus long depth of field. Fine adjustments to the optical lens group need to be clarified through models to indicate adaptation directions.
Differentiation of CIS Suppliers: A 2-megapixel CIS of the same specification may use Sony IMX290 or OmniVision OV2710. Although the resolution and pixel size are consistent, there are slight differences in noise control curves and response speeds between the two. Models are used to mark component batches and suppliers to facilitate later quality tracing.
Batch Differences of Optical Components: If lens groups with the same parameters are purchased from different lens manufacturers (such as Sunny Optical and Largan Precision), even with consistent optical parameters, slight differences in assembly tolerances will affect imaging consistency. Model differentiation enables quick identification of the source of problems.
Differences in Electrical Safety Design: Modules for the North American market need to comply with the UL60601-1 leakage current standard (≤100μA), while those for the European market need to comply with the IEC60601-1-2 EMC standard. These electrical design adjustments do not change core imaging parameters but require models to clarify the scope of certification adaptation.
Software Protocol Adaptation: Different brands of endoscope hosts (such as Olympus and Fujifilm) use different communication protocols. Modules with the same parameters need to be equipped with different firmware to match the host. Differences in firmware versions are identified through models to avoid incompatibility caused by incorrect matching by customers.
