Even vehicle cameras need warmth like we do!
- Meet LG Innotek's Developers of the Heating Camera Module –

▲ (From left) Developers of the Heating Camera Module - Joungrak Choi, Seul-ki Kim, Jinwook Choi, Sunmin Hwang 

As autonomous driving technology rapidly advances, continuous innovations are being made to enhance vehicle safety. One important research area is ensuring the functionality of essential vehicle components in extreme conditions.

To keep camera visibility clear even in severe cold, LG Innotek developed the High-performance Heating Camera Module by integrating the lenses and the heater into a single module, using the world’s best ultra-precision optical design. What makes the LG Innotek Heating Camera Module unique and special? We spoke with the developers to find out. 

Q. What led to the development of the Heating Camera Module?

LG Innotek recognized the need for a heating camera quite early on. We filed a patent in 2015 and waited for the market demand to catch up. Initially, there was little demand for heating cameras.

However, as ADAS became more significant and autonomous driving technology advanced, the ability to quickly eliminate moisture or frost in bad weather became essential. This improvement enhances driving convenience and facilitates the collection of data for autonomous driving.

Field data also indicated a need for de-icing in extreme low temperature, leading us to start the advanced development of the Heating Camera Module.

Q. What is a Heating Camera Module, and why is it necessary?

Vehicle cameras are divided into two types: viewing cameras and sensing cameras. Viewing cameras provide visual information around the vehicle to eliminate blind spots while sensing cameras analyze visual information to warn the driver or control the vehicle.

But what happens if moisture or frost forms on the camera surface? While it’s less of a problem for viewing cameras, it can significantly impact sensing cameras and affect driving safety. Therefore, it's crucial to quickly de-ice the camera, which is why the Heating Camera Module is essential. This module uses heating technology to clear snow, frost, and moisture from the camera.

Q. What are the technical advantages of LG Innotek's Heating Camera Module?

Previously, heating coils were commonly used to indirectly heat the entire camera. However, heating coils continuously increase in temperature when voltage is applied, requiring an additional temperature control circuit to prevent overheating. This made the module larger.

To address these issues, we used high-efficiency PTC (Positive Temperature Coefficient) materials in our Heating Camera Module and combined the lens and heater into a single module, enhancing design flexibility. This direct heating method removes frost and moisture much faster, and since PTC materials stop increasing in temperature once a certain level is reached, no additional components are needed. The module is also almost the same size as conventional camera modules, making it highly versatile.

Q. Were there any challenging moments or memorable episodes during the development of the Heating Camera Module?

One of the most challenging and memorable parts of developing the Heating Camera Module was preparing for and conducting performance tests. We needed to create ice conditions similar to those on a real vehicle, which was quite difficult. The testing environment was not fully equipped, so we had to use a range of jigs and equipment, with each test taking about 2 to 3 hours.

Additionally, developing a heating camera for the first time meant there were not enough established standards to follow. We experienced many trials and errors in developing test specifications and setting up the environment. Although it was tough, it was a valuable learning experience that taught us a lot.

Q. Lastly, please describe what makes the LG Innotek Heating Camera Module remarkable in one sentence?

Joungrak Choi : "Small but powerful." You might wonder if such a small module can really perform well, but the moment the heater activates, you'll experience how quickly it clears the view.

Sunmin Hwang : From a perspective similar to but different from Mr. Choi, I'd say, "Similar yet different and fast." It looks like and can be installed like a regular vehicle camera, but you'll definitely notice the superior and quicker performance.

Jinwook Choi : I think of it as 'Innovation that transforms everyday life.' It's not just a vague innovation but a practical technology that can be immediately applied to make our daily lives more convenient. Personally, I find it very frustrating when the rear camera becomes blurry due to snow or moisture during winter parking. I look forward to the quick implementation of the heating camera module.

Seul-ki Kim : I believe it's 'A technology that turns ideas into reality.' We recognized the necessity for direct heating and made it happen through countless trials and errors. This achievement is what makes the Heating Camera Module truly remarkable.

The innovation towards the future of mobility technology, with LG Innotek at its core.