How To Choose An Endoscope Image Sensor by Camera Diameter: From OCHTA10 To OV2740
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How To Choose An Endoscope Image Sensor by Camera Diameter: From OCHTA10 To OV2740

Views: 0     Author: Site Editor     Publish Time: 2026-09-28      Origin: Site

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Quick Answer

In an endoscope camera, sensor selection is strongly constrained by the finished camera-head diameter. Ultra-small probes below 2 mm use different sensor platforms from 3.x mm USB modules or 5–6 mm 1080P60 systems. OEM teams should therefore choose the mechanical envelope first, then compare the sensor/resolution options that realistically fit that envelope. Resolution is important, but diameter, frame rate, illumination, lens structure, interface and host capability determine whether the sensor is practical in the final device.

1. Start with Diameter, Not the Sensor Brand

If the product must fit through a sub-1 mm or 1.5 mm channel, the available sensor choices are already narrow. If the device allows 3–4 mm, the product range becomes much broader. At 5–6 mm, higher frame rate and higher-resolution structures become easier to package. This mechanical sequence prevents customers from selecting a sensor first and discovering later that it cannot fit the probe.

2. Current Sensor Directions Across the Product Range

Sensor Direction

Typical Product Diameter Examples

Resolution / Positioning

Where It Makes Sense

OCHTA10

0.9–0.95mm

0.16MP class

Extreme miniaturization

OVM6946

1.5–2.0mm

0.16MP class

Ultra-small USB/AV and protected structures

OCHFA10

1.5–2.0mm

0.5MP class

More image detail while staying very small

OV9734

3.1–6.0mm families

1MP / 720P class

Broad USB, Type-C, side-view, integrated and shell options

OH01A10

3.1–3.9mm families

720P60

Small diameter with higher frame rate

OV02C10

3.65–3.9mm

2MP class

Higher-detail compact USB direction

OV2740

5–6mm families

2MP / 1080P60

Higher-detail, high-frame-rate inspection

The table describes product directions rather than claiming that every mechanical design around a sensor supports the same interface, lens, protection or frame rate. The complete model still needs to be checked.

3. OCHTA10: When Sub-1mm Access Dominates the Project

OCHTA10 is relevant when the device is defined by an extreme diameter limit. The product range includes 0.9 mm and 0.95 mm directions, including structures with integrated LEDs. The trade-off is that ultra-small probes leave less room for optics, illumination and protection.

4. OVM6946 vs OCHFA10 in the 1.5–2.0mm Range

In the 1.5–2.0 mm range, OVM6946 provides an ultra-small 0.16MP direction across USB, AV, side-view and IP67-supported structures. OCHFA10 provides a 0.5MP direction in similar small-diameter territory. The selection should therefore be driven by whether the project values the smallest established structure or additional image detail while staying within the mechanical limit.

5. OV9734 Is a Flexible 3.x mm Platform

OV9734 appears across many 3.1–3.9 mm product structures and also in larger side-view or multi-view products. This makes it useful when the OEM needs 720P-class imaging together with choices such as Type-C, integrated or separated construction, steel shell, side view or different cable structures.

6. OH01A10 and OV02C10 Address Different Performance Priorities

OH01A10 product directions in the 3.1–3.9 mm range emphasize 720P60 output, which is useful when smoother motion matters. OV02C10 directions move toward 2MP image detail in a similarly compact class. The correct choice therefore depends on whether the visual task values frame rate or detail more strongly.

7. OV2740 Fits Larger 5–6mm High-Frame-Rate Systems

OV2740 appears in 5–6 mm USB products with 1080P60 directions, including integrated, separated, long-cable and dimming-related structures. This family is useful when the device can accept the larger front end and needs more image detail plus smoother motion.

8. Medical vs Industrial Sensor Selection

Priority

Medical Device Project

Industrial Inspection Project

Diameter

Often a primary constraint

Depends on access opening

Resolution

Must match visualization need and probe size

Driven by smallest defect/detail

Frame rate

Depends on movement and device task

Important for moving probe / machinery

Protection

Device-specific

Steel shell / IP67 may matter more

Interface

Host/device architecture

USB/AV/WiFi/embedded host requirements

9. Sensor Selection Checklist

1. Define maximum finished camera-head diameter.

2. Define the smallest visual feature that matters.

3. Define required frame rate and motion condition.

4. Define working distance and FOV.

5. Define LED / illumination requirement.

6. Define interface and target host.

7. Define shell / waterproof / viewing-direction needs.

FAQ

Which sensor is best for the smallest endoscope camera?

There is no single “best” sensor. For sub-1 mm products, OCHTA10 is a relevant direction; 1.5–2.0 mm products open OVM6946 and OCHFA10 options.

Should I choose OV9734 or OH01A10?

If the project needs a broad range of 720P-class structures, OV9734 is flexible. If 720P60 is the main priority in a small diameter, OH01A10 directions may be more relevant.

When does OV02C10 make sense?

When a compact 3.x mm design needs a 2MP-class product direction and the final host/interface can support it.

Why does OV2740 usually appear in larger camera heads?

The 5–6 mm product families provide more space for the optical, electronic and illumination structures used in 1080P60 configurations.

Can the same sensor be used in direct-view and side-view products?

Some sensor platforms appear in multiple optical structures, but the complete lens, housing and mechanical design determine the actual viewing direction.

What information should I provide before asking for a sensor recommendation?

Provide finished diameter, resolution/detail need, frame rate, working distance, FOV, interface, host, LED, protection and viewing direction.

Conclusion

Sensor selection becomes much easier when diameter is treated as the first filter. Choose the mechanical envelope first, then compare the realistic sensor platforms inside that envelope according to image detail, frame rate, optics, interface and environmental structure.

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