Views: 0 Author: Site Editor Publish Time: 2026-04-08 Origin: Site
In the fields of minimally invasive medical procedures, precision industrial inspection, and micro-instrument development, the probe diameter is often the first threshold determining inspection feasibility. When the inner diameter of the target channel falls below 2mm, traditional endoscope modules are too large to enter, making critical defect identification impossible. Addressing this extreme-space inspection need, the 1.5mm ultra-micro USB endoscope module based on the OCHFA10 sensor provides a professional solution that “fits in, sees clearly, and integrates easily.” This article offers a practical selection framework from four dimensions: physical size, optical performance, interface compatibility, and typical applications, while incorporating key terms such as Endoscope camera modules, camera usb module, cmos module camera, USB2.0 camera module, and OCHFA10 Sensor to help you precisely match micro-space inspection requirements.
First step: Precisely measure the minimum inner diameter and bend radius of the target channel.
The probe diameter of this module is strictly controlled at 1.5mm (±0.1mm tolerance), allowing easy access to micro-holes, micro-catheters, and ultra-narrow gaps with an inner diameter ≥1.6mm. This specification makes visual inspection possible for the first time in the following scenarios:
Medical: Endoscope working channels under 1.8mm, intravascular micro-catheter inspection
Industrial: Inside precision fuel injectors, micro heat exchanger tubes, semiconductor equipment gaps
Electronics repair: Micro-connector receptacles, bottom of flexible printed circuit boards
Note: 1.5mm refers to the bare probe diameter; the module does not include an external protective shell. If the application environment involves corrosive liquids or mechanical impact, consider adding a disposable transparent sheath or a custom metal tube over the probe. Also, the probe length and flexible cable bending radius must match the inspection path—this module uses a standard Micro USB interface, and cable length can be customized.
Second step: Determine working distance, field coverage, and detail resolution requirements.
Equipped with the OCHFA10 Sensor, the optical system is specially designed for ultra-close macro observation from 5mm to 50mm. Key parameters include:
Focal length 0.418mm, 86°×86° dual-direction wide field of view
Fixed focus range 5–50mm, no auto-focus mechanism
700×700 resolution, supports YUV/MJPEG dual output formats
As a representative cmos module camera pushing the limits of miniaturization, the engineering value of its optical design lies in:
The 86° wide angle covers about 7mm×7mm at a 5mm working distance, fully capturing the cross-section of micro-holes or micro-solder joints.
The 5–50mm focus range precisely covers typical endoscope working distances, delivering clear images without frequent refocusing.
700×700 resolution provides sufficient detail for macro scenes while avoiding unnecessary data redundancy, ensuring smooth transmission over USB 2.0 bandwidth.
When selecting, evaluate: If the target is within 10mm (e.g., bottom of a chip solder joint), the module clearly shows micro-cracks; if you also need to observe the overall cavity condition at 50mm, verify the depth of field—the fixed-focus system’s optimal focal plane is typically around 20–30mm, with slight degradation at the extremes. Conduct real-scene tests at typical distances.
Third step: Choose the connection method and driver scheme based on the host platform type.
This module uses a Micro USB 5PIN interface, strictly follows the USB2.0 UVC driver-free protocol, and supports YUV and MJPEG output formats. As a standard USB2.0 camera module, it works plug-and-play with:
Windows/Linux/macOS computers – no driver installation required; directly recognized by camera applications
Android phones/tablets – connect via OTG adapter, compatible with mainstream UVC viewer apps
Embedded boards (Raspberry Pi, Jetson Nano, etc.) – recognized via libcamera or V4L2 drivers
For device manufacturers needing to integrate into final products, this module serves as a camera usb module that can be embedded directly into the host device, connecting to the main controller via a standard USB cable, eliminating the need for complex image acquisition driver development. This significantly shortens time-to-market and reduces software maintenance costs.
Application Scenario | Selection Rationale | Precautions |
|---|---|---|
Medical micro-catheter endoscopy | 1.5mm diameter fits into 1.6mm channels, 5–50mm focus covers catheter interior | Use disposable or add sheath to avoid cross-infection |
Precision nozzle internal weld spatter inspection | 86° wide angle covers the entire nozzle cross-section in one shot, 700×70 resolution clearly shows foreign objects | Optimal working distance 10–20mm |
Micro-chip bottom solder joint observation | Close macro focus reveals 0.1mm-level cracks; YUV format preserves raw details | Supplemental LED ring lighting needed |
Portable micro-hole detector | UVC driver-free direct connection to phone; OTG power no extra battery | Choose longer cable for deep holes |
Laboratory micro-specimen imaging | Fixed focus ensures consistent imaging for comparative observation | Use external fixture to stabilize probe |
The core value of the 1.5mm OCHFA10 micro endoscope module lies in combining the extreme miniaturization capability of Endoscope camera modules with a macro-optimized optical system, providing a “fits in, sees clearly, integrates easily” vision solution for medical, industrial, and research applications. When selecting, prioritize three questions:
How narrow is the space? If the channel inner diameter ≥1.6mm, the 1.5mm probe is necessary; for even narrower spaces, evaluate the bare probe (no housing) option.
How close is the target? The 5–50mm macro focus is designed for close-range work; it is not suitable for mid-to-long distances beyond 50mm.
How to connect? The standard USB2.0 UVC interface works with most hosts—no driver development needed.
As a manufacturer with over 30 years of optical imaging experience, SincereFirst not only supplies standard modules based on the OCHFA10 Sensor but also customizes cable length, LED lighting configurations, and housing materials according to your inspection scenario. We recommend obtaining engineering samples before mass production and conducting thorough pass-through, image clarity, and long-term stability tests in real micro-cavity environments to ensure your selection is both scientifically sound and forward-looking.
