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How we helped build an innovative
vision-led ophthalmology device

The history of ophthalmic photography dates to the late 1800s when Jackman and Webster described a technique for photographing the retina of a living human subject. Ophthalmic imaging has changed dramatically with the advent of digital cameras and the speed, processing power, and storage of electronic data. Now, ophthalmic diagnostic imaging enhances the understanding, diagnosis, and treatment of a wide variety of ocular disorders. This case study is about the design of an ophthalmic imaging device.

Challenges of accelerating
customer expectations

Our customer required a unique solution to treat one of the more common eye conditions. They wanted to upgrade the device with a camera to enable optometrists and ophthalmologists to record the treatment process while documents other issues with the eye and surrounding structures. In addition to a Camera, they also wanted to increase the processing capabilities of the existing electronics.

Camera

High performance -
Visible / NIR spectrum

Video & Imaging

Video recording and
simultaneous preview

Streaming

Wireless real-time
video streaming

Operation

Low consumption, with
fast boot time (Linux)

Selection of the camera module

The camera imager had to be consistent and accurate as it is part of a medical diagnostic equipment. The imager had to have a good visible range and also NIR performance. This was critical as the recording and documentation had to happen in the visible light range whereas the diagnosis and treatment needed NIR range. A mechanical IR filter is a common solution but due to size, that was ruled out. Image sharpness was another critical requirement for this use case.

Capture

Optimized pipeline /
buffer management

Color

Image sharpness with
modified LTM curve

Controls

Auto white balance and
auto exposure

Connectivity

Wi-Fi and
Bluetooth

Based on this, the e-CAM30_CUMI0330_MOD was used for this design. The imager performed well in the visible light range and had a great performance at 850nm wavelengths too. The AR0330 settings were optimized by e-con Systems™ camera team to enhance the sharpness of the image and performance in short exposure times.

How e-con Systems™ delivered a
hassle-free solution

This case study is a great example of how e-con Systems™ can bring a concept to the product on the table. To meet the requirements, e-con Systems™ had to

  • Optimize the e-CAM30_CUMI0330_MOD camera module and optimize the performance to suit the use case.
  • Work on the camera interfacing with iMX6, optimize power, performance, etc.
  • Full product hardware design to specification

Various teams within e-con Systems™ [camera team, product development services team, embedded software team] co-ordinated and build the hardware baseboard, camera customization and realized the complete product within the scheduled time frame.

flow chart

The highlight was that the customer got the 510K FDA approval within the planned timelines and e-con Systems™ helped the customer manufacture in ISO13485 certified facilities.

Case Study

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Ophthalmology cameras are a big part of the camera used in the medical devices market. e-con Systems™ has been working with customers and partners in the ophthalmology segment. While digital retinal cameras or Fundus cameras have been the main use case of cameras used in ophthalmology, more use cases where cameras are used in diagnosis, treatment and documentation of treatment have come up in the recent years due the reduction in size of camera modules, power consumption, cost among other factors.

e-CAM30_CUMI0330_MOD


3.4 MP Low Light
Camera Module