Views: 0 Author: Site Editor Publish Time: 2026-10-05 Origin: Site
A custom endoscope camera project becomes much easier to evaluate when the OEM defines the complete device requirement instead of asking for isolated changes such as “make the diameter smaller” or “increase the resolution.” The most important inputs are finished diameter, working distance, FOV, image-detail requirement, illumination, interface/host, cable/mechanical structure and environmental protection. These requirements interact. Changing one can make another harder, so feasibility should be judged as a system rather than as eight independent options.
Diameter is often the strongest mechanical constraint. It limits the sensor package, lens, LEDs, shell and assembly space. The RFQ should specify the maximum finished diameter after housing and sealing, not only a preferred bare module size.
The lens must be designed around where the target actually sits. If the target distance is fixed, a fixed-focus structure may be simpler. If it varies significantly, depth of field or autofocus may become more important. Working distance should be provided as a range, not a single marketing number.
FOV determines scene coverage, while direct-view/side-view/multi-view determines where the camera looks. These are separate decisions. A wider forward-facing lens cannot replace a side-view optical path when the target is on the cavity wall.
Instead of asking for “the highest resolution,” define the smallest feature the operator needs to see and how fast the scene moves. This helps determine whether the project should prioritize resolution, frame rate, sensor size or host bandwidth.
Specify whether illumination is external, integrated or fiber-based, how reflective the target is and whether dimming is required. LED quantity alone does not define image quality. Working distance, angle, window reflection and heat must be considered.
USB/UVC, Type-C connector variants, AV, DVP/WiFi and other architectures solve different system problems. The OEM should provide the exact host platform, operating system, application/software environment and required video format wherever possible.
Cable length, diameter, flexibility, bend radius, connector type and processing-board position can strongly affect feasibility. In some projects, moving the board away from the tip or using a separated structure solves more problems than changing the sensor.
Define whether the camera is used in dry equipment, wet pipes, oily machinery, washable structures or other environments. If waterproof protection is required, identify which part of the device needs protection and how the final probe will be validated.
Requirement | Poor RFQ Example | Better Engineering Input |
Diameter | “Need very small” | Finished camera head ≤ target diameter |
Working distance | “Close focus” | Typical and minimum/maximum distance |
FOV | “Wide angle” | Required scene coverage at target distance |
Image | “HD” | Smallest detail + target FPS |
LED | “Need lights” | Target reflectivity + dimming/control method |
Interface | “USB” | Host, OS, format, connector |
Cable | “Long cable” | Length, bend, connector, board position |
Protection | “Waterproof” | Exposure boundary and validation condition |
Some combinations are physically possible but commercially inefficient; others conflict directly. For example, extreme miniaturization may reduce space for LEDs and protection. Higher frame rate can increase data demand. A long cable can reduce signal and power margin. The OEM should therefore rank requirements as “must have,” “preferred” and “optional.” This gives engineering room to propose a workable compromise.
1. Define application and target environment.
2. Lock the hard mechanical limits.
3. Define the visual task: distance, FOV, detail, motion.
4. Define illumination and viewing direction.
5. Define host/interface/cable architecture.
6. Select the closest existing product direction.
7. Customize only the gaps that materially affect the device.
8. Validate the sample in the real or representative device structure.
Can every parameter be customized independently?
No. Diameter, lens, LED, shell, cable, interface and image requirements interact. One change can reduce the available options elsewhere.
Should I start from a custom design or an existing module?
Usually start from the closest existing product direction, then customize only the gaps. This reduces technical risk and sample time.
What is the most important information for a small-diameter project?
Maximum finished diameter, camera-head length, working distance, illumination and cable/mechanical layout are especially important.
Can a custom project combine high resolution and ultra-small diameter?
It depends on the sensor, lens, front-end structure, LED and interface. The requirements should be evaluated together rather than assumed.
How should a waterproof requirement be specified?
Describe what part is exposed, to what environment, and under what duration/cleaning/immersion condition. A generic “IP67” request is often not enough.
What should I send before requesting a custom sample?
Send the eight requirement areas in this guide, plus drawings or existing device dimensions where available.
The best customization process reduces ambiguity before engineering starts. A complete requirement lets the supplier identify which existing product direction is closest, which parameters truly need modification and which trade-offs must be decided before sample production.
