Views: 0 Author: Site Editor Publish Time: 2026-08-10 Origin: Site
A bare module gives OEM developers the most freedom to integrate the camera into their own probe, housing or optical stack. A steel shell adds mechanical protection, a controlled outer shape and a practical path toward waterproof structures when the complete assembly is designed and verified for that requirement. A plastic structure can be useful when weight, electrical isolation, cost or molded geometry matters, but it should not be assumed to provide the same protection as steel. The correct choice depends on the device envelope, insertion environment, final sealing method, required service life and who is responsible for the finished probe assembly.
Structure | Typical Advantages | Main Risks / Responsibilities |
Bare Module | Smallest integration envelope; maximum freedom for custom housing, lens window and cable routing. | OEM must protect the lens, PCB, solder joints and cable transition. |
Plastic Structure | Lightweight; flexible molded geometry; potential electrical isolation and cost control. | Material, wall thickness, sealing and chemical compatibility require project evaluation. |
Steel Shell | Mechanical protection; stable outer diameter; suitable for demanding insertion environments and confirmed waterproof designs. | Adds diameter, length, assembly tolerance and possible reflection or thermal considerations. |
Bare modules are appropriate when the customer already has a probe body, disposable tip, rigid tube, robotic instrument or other proprietary housing. They can reduce front-end size and avoid duplicated mechanical layers. However, the module is not a finished inspection probe. Lens protection, LED alignment, strain relief, electrostatic protection, moisture control and assembly tolerance remain part of the device design.
A steel shell helps protect the camera head during insertion and gives the design a repeatable outer form. It can support IP67-related or waterproof structures when sealing, cable transition, front window and assembly are all designed and verified together. The rating must apply to the complete confirmed configuration, not automatically to every module using a metal tube.
People searching for a plastic endoscope camera may mean several different things: a plastic probe housing, a disposable tip, an electrically isolated structure, a lower-cost consumer inspection camera or a camera module installed inside a molded device. For B2B projects, the correct requirement should be translated into material, wall thickness, sealing, sterilization or cleaning compatibility, insertion force and production-volume questions. Plastic shell options can be evaluated project by project; they should not be presented as interchangeable with steel without engineering validation.
Project Condition | Recommended Starting Point | Why |
Existing customer-designed probe or disposable tip | Bare module. | Avoids duplicated housing and gives maximum mechanical freedom. |
Wet industrial cavity or pipe inspection | Confirmed steel-shell waterproof configuration. | Prioritizes mechanical protection and sealing. |
Side-wall inspection in a rigid probe | Steel-shell side-view structure or custom housing. | Maintains lens orientation and protects the lateral opening. |
Weight-sensitive or molded plastic device | Plastic structure evaluation. | Allows geometry and weight optimization. |
Early optical feasibility test | Bare module or representative shell sample. | Separates image evaluation from final mechanical design. |
Bare module options are available across multiple diameters and sensor families, including ultra-small 1.5 mm structures, 3.1 mm to 3.9 mm USB modules, 5 mm to 6 mm 1080P60 families and larger autofocus designs. For shell-supported directions, the SF-C1019USB-D3.9-PRO-L200 uses a 200 mm steel shell direction, while the SF-C1019USB-D6.0-SV-PRO-L200 combines a 6.0 mm side-view structure with a steel shell. These models illustrate how housing choice changes the final product role, not just the appearance.
1. Who owns the final probe housing design and assembly process?
2. What is the maximum finished outer diameter, not only the camera PCB size?
3. Will the camera contact moisture, oil, dust, cleaning agents or biological material?
4. Does the project need direct-view, side-view or multiple viewing directions?
5. How will the lens window and LEDs be protected and aligned?
6. What cable strain, bend and insertion forces will the probe experience?
7. Which environmental claim must be verified on the finished device?
Is a bare module smaller than a steel-shell camera?
Usually yes, because it does not include the outer tube, front window, sealing and related tolerances. The finished device may still need those layers, so compare the final stack rather than only the bare camera size.
Does every steel shell endoscope camera support IP67?
No. Steel is only one part of the structure. IP67 support depends on the complete sealed configuration, including the front window, cable transition, joints and assembly process.
Can a plastic shell be waterproof?
A plastic shell can be designed for water resistance, but material, molding tolerance, joints, adhesive, cable exit and validation method must be defined. It should be treated as a project-specific structure.
Which structure is better for a disposable medical device?
It depends on the disposable tip design, target diameter, optical window, material requirements and manufacturing process. A compact bare module is often useful when the device manufacturer controls the final sterile or disposable structure.
Can a bare module be tested before the housing is finished?
Yes, but optical and electrical testing should be followed by a second validation after the final window, shell, LED and cable structure are assembled.
Can SincereFull evaluate a custom shell?
Steel shell, plastic structure, diameter, length, viewing direction, LED, cable and connector options can be evaluated according to project requirements.
Send the target diameter, probe structure, environment, viewing direction and sealing requirements to SincereFull. We can help evaluate whether a bare module, steel shell or custom plastic structure is the better starting point.
Note: This article is for device design and camera module selection reference. Final medical device compliance should be evaluated according to the target market, application and applicable regulations.
