In Augmented reality, Virtual reality i Mixed reality news
June 17, 2021 – Kopin Corporation, a developer and supplier of high-resolution display microprocessors and subassemblies for defense products, businesses, consumers and physicians, recently announced that it has managed to develop total plastic pancake optics with what it claims to be an “advanced performance “for virtual reality (augmented reality (AR) and mixed reality (MR) applications (collectively XR).
Kopin has applied for three patents on the design, manufacturing processes and use of the system for all plastic panel optics and expects additional presentations to take place.
According to the company, Pancake optics, compared to other optical designs, can provide superior magnified image quality in a much thinner form factor, especially for products with a field of view (FoV) that it ranges from 50 to 100 degrees. Kopin’s new all-plastic Pancake optics with all aspherical lenses (compared to previous Pancake optics with spherical glass lenses) help reduce weight and thickness while improving image quality, all at a lower cost .
Pancake optics work by reflecting light back and forth within the optical system. However, without succeeding too technical and plastic materials usually have a large birefringence (double refraction of light). Kopin claims that its two-element Pancake optics, all-plastic, has virtually no birefringence and, as a result, offers a Pancake optics system with better image quality, smaller size, lighter weight and a lower cost than anything previously available.
The first all-plastic Pancake optics, called the P95, is optimized for Kopin’s 1.3 ″ 2.6K x 2.6K organic light emitting diode (OLED) multidisplay display (2560 x 2560 resolution) and provides a FoV of 95 °. With a thickness of 16 mm and 15 g per set of lenses, the new Pancake optics are thinner and lighter than the optics of current VR headphones. Kopin added that, combined with its 2.6K x 2.6K high-brightness OLED microdisplay, the P95 pancake optics provide a virtual image equivalent to a 250-inch diagonal screen viewed at a distance of 10 feet with solid image performance for virtual reality applications.
“This great breakthrough represents a key milestone for emerging RV markets. Bulky and heavy headphones have for many years been a major barrier to faster consumer adoption. No more, ”said Dr. John CC Fan, CEO and founder of Kopin Corporation. “After a thorough review of the available optical designs, we believe that all-plastic Pancake optics are best for virtual reality applications that require a very large field of view, excellent image performance, and a super compact size.
The company added that it believes its new Pancake optics will also be suitable for RA and MR applications and could help deliver high-performance, lightweight (<100 g) compact headphone products. Kopin stated that it plans to offer its new optics as a standalone component or in a module with its OLED microdisplays.
To learn more about Kopin and its visual and optical technologies, visit the company website.
Image credit: Kopin