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Contact Image Sensor and CIS Module

CMOS Sensor Inc. is a trusted designer and manufacturer of contact image sensors (CIS) and CIS modules with over 25 years of engineering excellence.

contact image sensor close up

A standard CIS module is an optical device which consists of sensor board, SELFOC Lens Array (SLA), light source within a housing sealed by cover glass.


The sensor board is carefully designed with in-house linear sensor chips using silicon butting technology. One chip can be butted to another chip to form a long sensor module, the end pulse of the preceding chip is connected to the start pulse of the next chip. The length of the CIS module can be extended from one chip up to A0 size.

Explore Contact Image Sensor Applications:

​Contact image sensors are commonly implemented with reliable results in many different use cases spanning many industries:

  • Printer Scanner

  • Barcode Scanners

  • QR Code Scanners

  • Currency Validation

  • ATM Machines

  • ID card readers

  • Passport readers

  • Driver's license readers

  • Credit/Debit card readers

  • Check Readers

  • Gaming Machines

  • Vending Machines

  • Multi-Function Printers

  • Business Card Readers

  • Digital Copiers

  • X-Ray/ Radiography Reader

  • Edge detector, positioning and optical encoding

  • Any scanning device that scans flat or thin objects!

Key Advantages of Contact Image Sensors

The key advantages to CIS modules have been time-tested by many companies.

Choosing the right CIS module for your system gives you the advantages of:

  • Compact size

  • Cost effectiveness

  • Low power consumption

  • Non-distorted, precise image reading

  • Easy implementation

  • Flexible design

cis module

You can request customized CIS module solutions for your specific needs as well as choose from our standard CIS sensor and CIS module lineup.

contact image sensor module illumination

Click below to learn more about the standard CIS sensors and CIS modules we offer:

Wafer for contact image sensor (CIS) chips
cis module laying on blue background


CIS module technology


Contact us about a prebuilt CIS module or request your customized design!

Prebuilt Contact Image Sensor Modules:
Prebuilt contact image sensor modules for ID and passport inspection and currency verification

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