Selectronic leading the way with LED optical lens design

08 April 2019

Selectronic automotive LED optical lens design

Car door mirror indicators and logo lamps put spotlight on top technical team at UK opto-electronic experts, Selectronic.

Optical design increasingly plays an important role in LED imaging and non-imaging applications – and UK opto-electronic experts, Selectronic believes it has just the team to help solve your company’s requirements.

Witney, Oxfordshire-based Selectronic – marking their 40th year in 2019 – are keeping ahead of the game according to MD, Kevin Dry, citing its LED integrated design for car  door mirror-mounted LED assemblies for indicators and integral logo lamps.
“LEDs can benefit from better efficiency with a lower power consumption, with a desired beam shape and uniform intensity distribution in the far field,” said Dry. “That’s where Selectronic comes in.”

“We are in the fortunate position of having the in-house capability to configure lens and optics to work with LEDs, overseen by the skills of our Technical Manager, Xuesong Hu working here in our head office at Witney,” he said.

Hu received a PhD in Optics from Cambridge University and has worked in the university and industrial sectors on optical system design, including free-space optics and fibre optics.

With over ten years’ experience in optoelectronics and optics, he also worked as a research scientist at Sharp Labs in Oxford before joining the Selectronic team as Technical Manager.

“Xuesong has the skills, experience and qualifications to complement our team of experts at Selectronic,” said Dry. “Working with customers on projects in the automotive and consumer sectors, the Selectronic team has been able to bring clarity to the optical design process that ensures that the emphasis on using very high output LEDs can be reduced with direct implications on the costs incurred.

“As LED usage becomes more integrated in applications such as door mirror mounted indicators of wrap around orientation, the challenge to gain maximum performance is increased,” added Dry. “By working with the design team at Selectronic, customers can be assured of the best possible technical partnership.
“Similar consumer projects, such as audio and kitchen-based products, increasingly utilise multi-LED configurations to aid optimum use. Again, the use of well-designed lens units both maximise the visual performance and minimise the cost of materials to achieve best user feedback.”
One example of how Selectronic can help your company started with a customer’s inquiry to design a logo lamp. “The challenge of the project was that one would not only need to collect as much light as possible from the LEDs and but also produce a sharp image at the projection plane,” explained Xuesong Hu. “Selectronic worked with the customer closely throughout the entire project. At the beginning, we helped the customer to select the correct LEDs for this application. Then this was paired with a special custom-designed lens that maximised light transfer efficiency and, as a result, the efficiency of the complete logo lamp projection system was maximised, delivering a good image quality. Such a customised optical system  maximises the light performance, minimises power consumption and reduces optical aberrations resulting, in the case of the logo lamp, sharp clear images.”

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