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IoT related business

Contributing to the development of automotive and IoT sensing technologies

Our main products are illuminators and Pupil Lens Modules®: inspection equipment and devices essential for manufacturing CCD and CMOS image sensors. These devices can identify defects and specifications of image sensors at an early stage, reducing manufacturing costs, improving yields, and guaranteeing the quality of image sensors.

Illuminatorのイメージ
Illuminator
Image sensor inspection use illuminators for CCD and CMOS image sensors
An illuminator produces light with specified properties and beams it to an image sensor. These devices are essential for quality inspection.

Defects are detected by measuring whether a normal electrical signal is output from the image sensor with respect to the light emitted from the illuminator. Our illuminators are tailor-made to each customer’s request.

The strength of our illuminators is that we offer effective solutions to customers’ problems through a comprehensive and persistent approach that includes mechanical and electrical technology in addition to optical technology. Our technology and customer service are highly rated, and we possess the world’s top share in illuminators.

Pupil lensのイメージ
Pupil Lens Module® (PLM®)
PLM® for mobile image sensors
The PLM® is a product that replicates the lens part of the camera. Using a PLM® for inspection makes it possible during testing to reproduce the environment in which the image sensor will actually be used. It is also possible to inspect whether the image sensor is able to achieve the designated specifications under those conditions. In the case of camera modules installed in smartphones, the number and shape of lenses often differ depending on the smartphone model. The PLM® is specially designed each time according to the specifications of the camera module.

Although the PLM® is not an essential product for conventional quality inspection, it contributes significantly to improved yield and stable quality. The PLM® is an INTER ACTION original product and our main product after illuminators.

About CCD and CMOS image sensors

What is an image sensor?

An image sensor is a semiconductor that converts light (images) captured from a lens into an electrical signal. In terms of the human eye, an image sensor would be the retina. Its performance greatly impacts the image quality of photographs taken with equipment such as digital cameras.

CCD・C-MOSイメージセンサのイメージ CCD・C-MOSイメージセンサのイメージ
  • Pixels convert light into electricity. These pixels are arranged on the image like squares on a chess board in an image sensor. A 20 million pixel image would contain 20 million pixels lined up.
  • If any of these pixels are defective, a defect will be seen on the displayed image. Therefore, it is important to perform inspections to determine whether the pixels are defective or not.

Image sensor manufacturing process

Image of image sensor manufacturing process

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