On September 4, 2019, at Booth 3J15 of the Shenzhen Convention and Exhibition Center, the high-tech enterprise —— KunYou Optoelectronics, which focuses on the research, development, and application of wafer-level optical chips, formally released its mass-produced holographic optical grating optical waveguide display module at the site of the Shenzhen Optical Expo (CIOE 2019).
Rotary Series Holographic Lenticular Optical Waveguide Display Module
The heat of the AR industry has been rising in the past year, with the release of Microsoft HoloLens 2, Apple AR glasses on the verge of coming out, and high-profile announcements of cell phone manufacturers about the upcoming launch of AR glasses…… the active entry of terminal manufacturers has made 2019 or the first year of the outbreak of the AR industry. Undoubtedly, for AR glasses, the optical display part is one of the most important parts of the whole machine, and it is also a part of the cost (about 1/3 of the whole machine) and high added value. Unlike the scenes that users see after wearing a VR helmet, which are all virtual images, because AR is a technology that fuses virtual images into real scenes, this requires AR glasses to meet the user to see virtual images while also meeting the ability to see real-world scenes. This difference puts new requirements on the optical display technology of AR devices. The current market AR display includes a total of four types of free-form surface, array optical waveguide, body grating optical waveguide and holographic grating optical waveguide.
Holographic Lenticular Optical Waveguide Display Module of Fuguang Series Photographs
The main principle of holographic grating optical waveguide technology is through the theory of binary optics, photolithography on the wafer surface extremely fine structure (<100nm) to form a surface relief grating structure, imaging through the grating diffraction principle. The technology breaks through the traditional cold optics and injection molding process, made by wafer-level optics, so that the structural layer can be made to sub-micron thickness, a real chance to do & ldquo; thin as a cicada wing & rdquo;; At the same time, the form is not limited, can be made of any size size. Its obvious advantage is that due to the use of semiconductor manufacturing process, mass production is good; cost and volume are directly related to the amount of very low cost can be achieved. Due to its excellent mass production and flexibility, holographic grating optical waveguide technology is gradually becoming the industry's hotspot of concern, but also become a giant must fight for the soldiers. At present, the flagship products of giants including Microsoft's HoloLens, HoloLens 2, Magic Leap One and so on have adopted this technology.
KunYou Optronics is one of the few companies in the market that can design and produce holographic grating optical waveguides. Since the beginning of this year, KunYou Optronics has released its & ldquo; Easy & rdquo; and & ldquo; FuShuo & rdquo; series of products. Easy series focus on thin and light (thickness <0.5mm), full-color cost-effective; and Fuwang series focus on color balance and clarity. Data show that the Fuwang series AR optical waveguide has a 38° field of view, outstanding color balance effect, as well as comparable to the resolution of the retina screen.
In June, only three months after the release of the Fuyao series, September 4, in Shenzhen Optical Expo venue, KunYou Optoelectronics once again released the weight of the product – with a dedicated light engine Fuyao series of complete optical waveguide module. Once again, the industrialized application of grating optical waveguide is upgraded to a whole new level.
This time, KunYou Optoelectronics has joined hands with the international top optical manufacturer — Schott, Germany, to release the products together. The joint release with Schott, on the one hand, reflects the importance and recognition of Schott to KunYou Optronics, and also reflects Schott's willingness to help KunYou to push into the international market and its firm determination to overcome the final mass production. Schott Augmented Reality Business Asia-Pacific Market Development Director Mr. Wu Min said: & ldquo; Schott firmly optimistic about the future of AR and holographic grating optical waveguide, KunYou photoelectric both excellent holographic optical design capabilities and diffractive optics precision manufacturing capabilities, we are honored to participate in the development of KunYou photoelectric series of optical waveguide components and modules, and to become a KunYou photoelectric AR optical wafer of the strategic suppliers, continue to help KunYou photoelectric series of optical waveguide components and module development, and become the strategic supplier. We are honored to participate in the development of KunYou's series of optical waveguide components and modules, and to become a strategic supplier of AR optical wafers to help KunYou's optical waveguide development and mass production. SCHOTT is a multinational technology group headquartered in Germany, with more than 130 years of experience and technology accumulation in the field of specialty optics; SCHOTT RealView(TM) series of highly refractive optical wafers are specially developed for AR augmented reality optics, which not only help customers design large field of view, thin, light, and sharp waveguide, but also provide the customers with excellent quality management and complete supply chain capabilities for mass production. SCHOTT's excellent quality management and complete supply chain capability also provide a strong guarantee for customers' mass production.
Dr. Tao Lin, Chairman of KunYou Optoelectronics and Dr. Rudiger Sprengard, Global Vice President of SCHOTT
Formal signing of the cooperation agreement
The comprehensive indexes of the Fuyu series of optical waveguide modules launched this time have already reached the international first-class level:
1. Mass production. The grating optical waveguide itself has the inherent advantages of mass production and consistency. The launch of this module means that KunYou already has the mass production capability of light engine and module assembly. It further improves the ease of use of the AR machine and strongly helps upgrade the domestic AR industry chain.
Mass production holographic grating optical waveguide real photo
2. International first-class clarity. With the help of optical waveguide and optical machine precision optical path and system coordination, the clarity of Fuwang series of optical waveguide module reaches the international first-class level. Retinal display, “minute by minute ”.
Fuwang holographic grating optical waveguide display module effect real shot
3. Thin and light. With the help of SCHOTT, the thickness of FUJI series optical waveguide is as thin as 1.8mm, which becomes the relatively thin AR display waveguide in the market. With a length and width of 44mm by 39mm large area waveguide, for example, the weight is only 9g, the area can be reduced according to customer requirements, in order to seek a lighter weight. Through the optimized optical design, the total module weight is only 18g, which is really as thin as a cicada's wing and as light as a feather.
Dr. Lou Xinye, R&D Director of KunYou Optoelectronics, said that wafer-level optics is the cornerstone technology that kicks off the prelude to “consumer photonics”, KunYou Optoelectronics is extending its technological advantages to a wide range of “optical core” various fields, and is also making efforts to the core components of the micronanometer optics of the 3D depth imaging, with the DOE series for structured light and the TOF specialized Diffuser series. The DOE series for structured light and the Diffuser series for TOF have also been successfully introduced into mass production.
