In the world of medical diagnostics and precision industrial inspection, "space" is a luxury that engineers rarely have. When you are designing a tool to navigate a human artery or a jet engine turbine, every tenth of a millimeter matters.As a Camera Module manufacturer with over 30 years of experti
IntroductionIf you're designing something that needs to see into tight spaces—a medical scope, an industrial inspection tool, or even a DIY gadget—size is everything. The camera module has to fit through whatever opening you have. Too big, and it won't go where it needs to. Too small, and you might
What is an Endoscope Camera Module? A Complete Technical OverviewIn the fields of modern medicine and industrial maintenance, the ability to see into inaccessible spaces is not just a convenience—it is a necessity. At the heart of this capability lies a remarkably sophisticated piece of technology:
1. Introduction: When High-Definition Imaging Meets Confined SpacesIn the intersection of minimally invasive medical procedures and industrial precision inspection, a common technical challenge increasingly arises: how to obtain sufficiently clear, smooth, and realistic visual information within a c
IntroductionIf you're buying an endoscope—for medical use, industrial inspection, or DIY projects—you'll probably wonder about resolution. How clear will the image be? Can you see small details? The answer depends on what you're using it for. Resolution standards have come a long way, from basic sta
IntroductionAn endoscope camera module is the tiny camera that lets doctors see inside your body or inspectors look inside machinery. At the core of most modern endoscopes is a CMOS image sensor. CMOS technology has made these cameras smaller, cheaper, and more efficient. This article explains what
1. Introduction: When Detection Space Meets Device Volume ConstraintsIn the development of automated inspection equipment, specialized robots, and portable instruments, imaging system selection faces a fundamental contradiction: the target is deep inside narrow cavities, while control equipment is b
In the field of minimally invasive surgery, the "eye" of the instrument—the endoscope camera—is perhaps the most critical component. It must be small enough to navigate the human body's delicate pathways, yet powerful enough to provide surgeons with crystal-clear, lag-free imagery.At the heart of th
If you are sourcing imaging components or developing a vision-based product, you have likely come across two terms: endoscope and camera module. They are closely related, but they are not the same thing. Mixing them up can lead to the wrong purchasing decision or unnecessary development work.This ar
In both modern medicine and high-end industrial maintenance, the ability to see into inaccessible spaces is critical. Whether a surgeon is performing a minimally invasive procedure or an aerospace engineer is inspecting a turbine blade, the primary tool at work is the endoscope.At the heart of these
IntroductionIn industrial nondestructive testing, medical device development, and embedded vision systems, a recurring challenge arises when the target lies on the sidewall of a pipe or within narrow cavities, particularly at millimeter-scale diameters. Traditional forward-view endoscopes fail in su
IntroductionAn endoscope camera module is the small imaging system inside every borescope or medical scope. It lets you see into tight spaces—inside engines, behind walls, or inside the human body. Despite its tiny size, this module contains several precision parts that work together to capture and
IntroductionA USB endoscope camera module is a small camera designed to look into tight spaces. Plumbers use them to check inside pipes. Mechanics use them to inspect engines without taking things apart. Homeowners use them to see inside walls. If you need to see somewhere you can't physically fit y
OV9734 Sensor 3.6mm Micro HD Endoscope Camera Module: Engineering Guide for Confined-Space Vision SystemsIntroductionIn the realm of industrial inspection, precision equipment maintenance, and embedded vision systems, the ability to visualize the interior of narrow structures often determines the su
Technical Logic and System Integration Considerations for Selecting 8mm 2MP Endoscope ModulesIn the practice of medical endoscope equipment development and industrial inspection system integration, the selection of imaging modules often faces a set of coupled engineering constraints: physical dimens
In the imaging technology spectrum of medical endoscopes and industrial inspection equipment, the evolution of product specifications has always followed two parallel development paths: one continuously ascends toward higher resolution, wider dynamic range, and greater intelligence in the high-end m
Technical Selection and System Adaptation Considerations for 2MP HD UVC Camera ModulesIn the development practices of consumer electronics peripherals, industrial vision terminals, and open-source hardware projects, the selection of imaging modules often faces a set of interrelated engineering const
In the industrial landscape of vision imaging technology, products at different resolution levels occupy distinct ecological niches. While market attention increasingly gravitates toward frontier areas such as tens-of-megapixel sensors, multi-camera fusion, and computational photography, 2MP (1080P)
In applications such as industrial nondestructive testing, precision equipment maintenance, and medical diagnostics, selecting an imaging system often involves balancing a set of interdependent engineering constraints: the physical diameter of inspection channels restricts the module’s front-end siz
In the evolution of endoscopic imaging technology, the continual reduction of sensor size and module diameter has consistently been a key driver of industry innovation. The 4.5mm-diameter miniature USB endoscope module, centered on the BF2013 sensor, represents a critical node along this technologic
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SF-C0310USB-D3.9-PLUS-D9
SINCEREFIRST
The 3.9mm USB Medical Endoscope Camera Module is a high-performance imaging solution engineered by SincereFull for both medical minimally invasive procedures and industrial precision detection. Integrating a VGA sensor and a MINI USB2.0 interface, this module features an ultra-short focal length of 1.074mm and an F3.58 aperture, delivering accurate imaging across an ultra-wide focusing range of 20mm–80mm. With a 90° diagonal field of view (FOV) and strict TV distortion control of < -5.5%, it ensures clear, low-deformation images to support precise diagnosis and inspection. Equipped with built-in LED lights, it eliminates dark corners and provides uniform lighting in confined spaces, while the plug-and-play USB2.0 functionality enables fast integration with surgical monitoring equipment and industrial detection hosts. Its 3.9mm ultra-fine diameter balances high resolution and flexible operation, making it a reliable tool for medical visualization and mechanical fault detection.

The combination of VGA sensor and 90° wide-angle FOV covers a larger detection area, ensuring no critical details are missed during medical examinations or industrial inspections.
TV distortion of < -5.5% guarantees minimal image edge deformation, which is crucial for accurate measurement and diagnosis in both clinical and industrial scenarios.
The 20mm–80mm focusing range and F3.58 large aperture adapt to different depth lesions in the human body and hidden mechanical structures, eliminating the need for frequent module replacement.
The ultra-fine 3.9mm diameter supports seamless integration with minimally invasive surgical instruments, reducing patient discomfort in medical procedures and enabling access to narrow mechanical parts.
Four built-in LED lights provide uniform supplementary lighting, effectively eliminating dark corner effects in cavity or small-space inspections.
The LED lighting system improves imaging quality in low-light environments, ensuring clear visualization of carbon deposits, cracks, or tiny lesions that are easily overlooked.
Parameter | Specification |
Model | SF-C0310USB-D3.9-PLUS-D9 |
Sensor | VGA |
LED Quantity | 4pcs LED |
Module Diameter | 3.9mm |
Focusing Range | 20mm–80mm |
Focal Length | 1.074mm |
Diagonal FOV | 90° |
TV Distortion | <-5.5% |
Output Format | YUV&MJPG |
F Number | 3.58 |
Output Interface | USB2.0 UVC |
Brand | SincereFull |
Minimally invasive surgery: Supports abdominal, ENT, and urinary system endoscopic integration, enabling high-definition observation of lesions through 3.9mm instrument channels.
Endoscopic diagnosis: Facilitates screening of internal lesions in the digestive tract and respiratory tract, providing clear imaging for early disease detection.
Engine inspection: Penetrates hidden parts such as cylinders and crankcases to check for carbon deposits, cracks, or foreign bodies, supporting vehicle maintenance and fault troubleshooting.
Mechanical structure detection: Accesses narrow gaps of precision equipment to identify potential defects, reducing equipment failure risks.
Medical modules prioritize biocompatibility, sterilization performance, and high image quality, and must comply with FDA/CE certifications. Industrial modules focus on durability, such as corrosion resistance, and wide-temperature operation ranging from -20°C to 70°C, along with special light source configurations.
Ear and nasal spaces are narrow. Modules with a diameter of less than 3mm can reduce patient discomfort, while maintaining high resolution of ≥300 line pairs/mm to identify tiny lesions that are easily missed.
Choose modules with oil-proof lenses, adjustable focal lengths (e.g., 10–100mm), and strong LED lights. Some modules with magnetic probes or 360° rotating heads are preferred, as they can inspect engine dead angles more comprehensively.
Are you looking for a high-performance 3.9mm USB medical endoscope camera module for medical diagnosis or industrial detection? Don’t hesitate! Inquire now to get detailed product quotes and technical support. Add to Basket to place your order, and we will provide you with reliable products and efficient after-sales service.
The 3.9mm USB Medical Endoscope Camera Module is a high-performance imaging solution engineered by SincereFull for both medical minimally invasive procedures and industrial precision detection. Integrating a VGA sensor and a MINI USB2.0 interface, this module features an ultra-short focal length of 1.074mm and an F3.58 aperture, delivering accurate imaging across an ultra-wide focusing range of 20mm–80mm. With a 90° diagonal field of view (FOV) and strict TV distortion control of < -5.5%, it ensures clear, low-deformation images to support precise diagnosis and inspection. Equipped with built-in LED lights, it eliminates dark corners and provides uniform lighting in confined spaces, while the plug-and-play USB2.0 functionality enables fast integration with surgical monitoring equipment and industrial detection hosts. Its 3.9mm ultra-fine diameter balances high resolution and flexible operation, making it a reliable tool for medical visualization and mechanical fault detection.

The combination of VGA sensor and 90° wide-angle FOV covers a larger detection area, ensuring no critical details are missed during medical examinations or industrial inspections.
TV distortion of < -5.5% guarantees minimal image edge deformation, which is crucial for accurate measurement and diagnosis in both clinical and industrial scenarios.
The 20mm–80mm focusing range and F3.58 large aperture adapt to different depth lesions in the human body and hidden mechanical structures, eliminating the need for frequent module replacement.
The ultra-fine 3.9mm diameter supports seamless integration with minimally invasive surgical instruments, reducing patient discomfort in medical procedures and enabling access to narrow mechanical parts.
Four built-in LED lights provide uniform supplementary lighting, effectively eliminating dark corner effects in cavity or small-space inspections.
The LED lighting system improves imaging quality in low-light environments, ensuring clear visualization of carbon deposits, cracks, or tiny lesions that are easily overlooked.
Parameter | Specification |
Model | SF-C0310USB-D3.9-PLUS-D9 |
Sensor | VGA |
LED Quantity | 4pcs LED |
Module Diameter | 3.9mm |
Focusing Range | 20mm–80mm |
Focal Length | 1.074mm |
Diagonal FOV | 90° |
TV Distortion | <-5.5% |
Output Format | YUV&MJPG |
F Number | 3.58 |
Output Interface | USB2.0 UVC |
Brand | SincereFull |
Minimally invasive surgery: Supports abdominal, ENT, and urinary system endoscopic integration, enabling high-definition observation of lesions through 3.9mm instrument channels.
Endoscopic diagnosis: Facilitates screening of internal lesions in the digestive tract and respiratory tract, providing clear imaging for early disease detection.
Engine inspection: Penetrates hidden parts such as cylinders and crankcases to check for carbon deposits, cracks, or foreign bodies, supporting vehicle maintenance and fault troubleshooting.
Mechanical structure detection: Accesses narrow gaps of precision equipment to identify potential defects, reducing equipment failure risks.
Medical modules prioritize biocompatibility, sterilization performance, and high image quality, and must comply with FDA/CE certifications. Industrial modules focus on durability, such as corrosion resistance, and wide-temperature operation ranging from -20°C to 70°C, along with special light source configurations.
Ear and nasal spaces are narrow. Modules with a diameter of less than 3mm can reduce patient discomfort, while maintaining high resolution of ≥300 line pairs/mm to identify tiny lesions that are easily missed.
Choose modules with oil-proof lenses, adjustable focal lengths (e.g., 10–100mm), and strong LED lights. Some modules with magnetic probes or 360° rotating heads are preferred, as they can inspect engine dead angles more comprehensively.
Are you looking for a high-performance 3.9mm USB medical endoscope camera module for medical diagnosis or industrial detection? Don’t hesitate! Inquire now to get detailed product quotes and technical support. Add to Basket to place your order, and we will provide you with reliable products and efficient after-sales service.
