‘Breakthrough’ Pancake Optics Could Usher in Ultra-Compact and Stylish VR Glasses – Virtual Reality Times

Shows manufacturer Kopin has actually reported a breakthrough in Ultra-Compact & & Stylish VR Glasses
Kopin Corporation has announced a significant optics breakthrough that could result in super-compact, lightweight, and trendy virtual truth glasses.
Kopin Corporation is one of the worlds leading designers and providers of high-resolution microdisplays along with display screen subassemblies for business, defense, customer along with medical items.
Last week, the business announced a development in the development of its all-plastic Pancake optics which have a development performance for virtual reality (VR), enhanced reality (AR), and blended reality (MR) applications.
The pancake optics represent a significant advance in the development of lenses and will be the first all-plastic Pancake optics in the world that have top-notch performance. Kopin Corporation has obtained 3 patents on the style, making procedure as well as system usage for all plastic Pancake optics and expects extra patent filings to follow soon.
VR headsets have actually undergone tremendous advances over the past 5 years. The tracking system, for example, has actually moved into the headset housing, the display screens now have very high resolutions that the as soon as annoying pixel grid has practically disappeared, and there is no longer any requirement for a player.
In spite of these advances, some things such as the type aspect and the weight have not altered much. VR headsets are still substantially bulky and heavy just as they were 5 years ago which has actually hindered their market potential.
The absence of progress in this location is largely attributable to the display screen innovation and optics which havent altered much over the past few years. The existing VR headsets still include a large display screen in front of which is mounted a thick and heavy Fresnel lens at a great distance. This building leads to a larger form element and mostly contributes to the heavyweights of many VR headsets which weigh more than 400 grams.
Kopins pancake lenses are all-plastic and according to the company, they now make it possible to have more compact virtual reality headset styles. The main benefit of the pancake lenses is that they easily work with coin-sized microdisplays and can also be mounted better to the screen as they can diffuse light particularly well.
The Pancake optics working mechanism involves reflecting light back and forth within the optical system. To properly reflect the light and prevent the image artifacts, it is essential to precisely manage the polarization state of light. Plastic products normally have big birefringence which interferes with the polarization state. Already, an all-plastic lens system hasnt been able to overcome the disturbance of the polarization state.
Kopins breakthrough lenses are made of all-plastic two-element Pancake optics which essentially have no birefringence. Kopins very first all-plastic Pancake optics is called P95 and has been optimized for Kopins 1.3″ 2.6 K x 2.6 K natural light-emitting diode (OLED) microdisplay (with the resolution 2560 x 2560) and with a field of view of 95 degrees. Kopin states it keeps the sharpness even up to the edge of the field of view which is a important and difficult to attain efficiency function for virtual reality applications.
Both Kopin and Panasonic have already presented matching pancake optics designs and Facebooks XR research director Michael Abrash suggested in 2018 that pancake lenses might in the future change the Fresnel systems currently deployed in VR hardware.
Kopins brand-new pancake lens is called P95 and is enhanced for Kopins 1.3-inch OLED microdisplays with a resolution of 2,560 by 2,560 pixels. According to Kopin, a pancake lens weighs 15 grams and is 16 millimeters thick. Kopin wishes to sell the item individually or in a package with the microdisplays and has currently found a style partner.
According to Kopin, the pancake optics supply a far remarkable magnified image quality within a much thinner type aspect, particularly for items with the field of views (FOV) that vary from 50 degrees to 100 degrees. The previous pancake lenses needed a minimum of one spherical glass lens to avoid the image artifacts resulting from the birefringence of the plastic product but the glass lens used also added to the weight and the expense to the lens system.
Nevertheless, Kopins new all-plastic Pancake optics are all aspherical lenses and are totally made from plastic that even more lowers the density, weight as well as making costs while at the exact same time improving the image quality.
It remains to be seen how Kopins pancake optics will fare in terms of the image quality and the field of view. According to Kopin, the field of view is 95 degrees but it is unclear whether this value is the vertical field of view or the horizontal field of view.
Should the actual field of view fall listed below the industry requirement of 90 to 100 degrees diagonally, Kopins innovation might be of interest to video glasses. Panasonics first pancake model had a field of vision of only 70 degrees. That remarkably narrow type aspect was likewise realized by outsourcing the tracking system, processing unit, and battery.

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Kopins pancake lenses are all-plastic and according to the company, they now make it possible to have more compact virtual reality headset designs. Kopins breakthrough lenses are made of all-plastic two-element Pancake optics which practically have no birefringence. Kopins very first all-plastic Pancake optics is called P95 and has been enhanced for Kopins 1.3″ 2.6 K x 2.6 K organic light-emitting diode (OLED) microdisplay (with the resolution 2560 x 2560) and with a field of view of 95 degrees. Kopins new pancake lens is understood as P95 and is enhanced for Kopins 1.3-inch OLED microdisplays with a resolution of 2,560 by 2,560 pixels. According to Kopin, a pancake lens weighs 15 grams and is 16 millimeters thick.


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