AR glasses combining ultimate image quality and uncompromised wearability … only wishful thinking or is there a clear path forward?
Waveguides as the fundamental concept will get us there. Two waveguide approaches have the biggest chance to win: (a) diffractive nanophotonic structures created by imprinting or etching or (b) reflective- geometric waveguides manufactured by conventional optical technologies.
In this talk, SCHOTT’s advancement in providing key contributions with are presented:
(a) RealView® wafers with ever increase flatness improving image quality and yield and RealView® glass with even higher refractive index enabling lightweight and cost efficient wide-field-of-view devices.
(b) SCHOTT’s reflective waveguides, created in partnership with Lumus using the new Z-lens architecture, now have achieved a new level of manufacturing maturity.
AR glasses combining ultimate image quality and uncompromised wearability … our industry is getting there!
End users’ expectation to smartglasses is benchmarked by today’s close-to-perfect displays in smartphones and the fashionable wearability of smartwatches with all-day battery power. The industry’s ambition to make an AR device part of everybody’s daily life requires uncompromising optical technologies. The architecture of choice promising to deliver this north star performance are waveguides. The material of choice to deliver the required performance of glass. Within the waveguide family, different light management technologies are considered: (a) diffractive structures (surface relief gratings or volume holographic gratings) manufactured by nano-photonic technologies or (b) reflective- geometric waveguides manufactured by conventional optical technologies with high requirements on tolerances. Driven by the commitment to define the industry’s reference of waveguide materials and components, we present our progress on SCHOTT’s two product lines: (1) SCHOTT RealView® high index glass wafers with progress in geometrical wafer quality, material innovation and coating technologies. (2) SCHOTT’s reflective waveguides, co-created in partnership with Israelian company Lumus, where the presentation will focus on manufacturing aspects of our new system architectures satisfying system design requirements of the industry.
End users’ expectation to smartglasses is benchmarked by today’s close-to-perfect displays in smartphones and the fashionable wearability of smartwatches. Users expect a deceptively genuine mixed realty experience and uncompromised all-day wearability. Waveguide-based combiner optics are the technology of choice to get there. Different technologies, based on diffractive, reflective and holographic structures, are competing to most efficiently inject, distribute and extract the waveguided information. Driven by the commitment to define the industry’s reference of waveguide materials and components, SCHOTT develops and commercializes dedicated RealView® products to support developers and manufacturers of AR optics. Progress on benchmark performance in ever higher refractive index and lightweight materials is discussed in the context of the industry’s needs for wider Field-of-View, lower weight and high-volume manufacturability. Still, SCHOTT’s contribution to AR does not end here: your will learn more about optical wafer for sensors and meta optics, as well as on hermetic packages for semiconductor light sources
Waveguide technology is widely believed to constitute the most promising approach to realize affordable and fully immersive Augmented Reality (AR) / Mixed Reality (MR) devices. For all major technology platforms (diffractive, reflective, or holographic), specialty grade high index optical glass is the central component to achieve some of the key features of AR devices, such as field of view, MTF, or weight. We will provide insights into SCHOTT’s roadmap for dedicated glass development for the AR sector and discuss the latest achievement with high relevance for the industry. It is a game of trade-offs between the desired properties to produce an optical glass which enables the entry of AR devices into the consumer market.
More SCHOTT RealView® and more than RealView®. AR/MR content rarely fills a headset’s full field of view – the display subsystem processes sparse data. This then begs the question: why transmit full video frames and consume the power if you don’t need to? In this presentation, CP will introduce a new generation of microdisplay technology platform IntelliPixTM. The breakthrough design of IntelliPix only activates the pixels that need refreshing, which results in high image quality while drastically lowering display subsystem power. CP will also highlight the other technology features of the platform that enable pixels as small as 2.5µm while unlock the real potential in AR/MR for amplitude LCoS, emerging microLED and future phase-based holographic systems.
Waveguide technology is widely believed to constitute the most promising approach to realize affordable and fully immersive Augmented Reality (AR) / Mixed Reality (MR) devices. For all major technology platforms (diffractive, reflective, or holographic), specialty grade high index optical glass is the central component to achieve some of the key features of AR devices, such as field of view, MTF, or weight. We will provide insights into SCHOTT’s roadmap for dedicated glass development for the AR sector and discuss the latest achievement with high relevance for the industry. It is a game of trade-offs between the desired properties to produce an optical glass which enables the entry of AR devices into the consumer market.
On the Javalambre mountain in Spain, the Centro de Estudios de Fisica del Cosmos de Aragon has setup two telescopes, the JST/T250 and the JAST/T80. The JAST/T80 telescope integrates T80Cam, a large format, single CCD camera while the JST/T250 will mount the JPCam instrument, a 1.2Gpix camera equipped with a 14-CCD mosaic using the new large format e2v 9.2k×9.2k10-μm pixel detectors. Both T80Cam and JPCam integrate a large number of filters in dimensions of 106.8×106.8 mm2 and 101.7×95.5 mm2, respectively. For this instrument, SCHOTT manufactured 56 specially designed steep edged bandpass interference filters, which were recently completed. The filter set consists of bandpass filters in the range between 348.5 and 910 nm and a longpass filter at 915 nm. Most of the filters have full-width at half-maximum (FWHM) of 14.5 nm and a blocking between 250 and 1050 nm with optical density of OD5. Absorptive color glass substrates in combination with interference filters were used to minimize residual reflection in order to avoid ghost images. In spite of containing absorptive elements, the filters show the maximum possible transmission. This was achieved by using magnetron sputtering for the filter coating process. The most important requirement for the continuous photometric survey is the tight tolerancing of the central wavelengths and FWHM of the filters. This insures each bandpass has a defined overlap with its neighbors. A high image quality required a low transmitted wavefront error (<λ/4 locally and <λ/2 on the whole aperture), which was achieved even by combining two or three substrates. We report on the spectral and interferometric results measured on the whole set of filters.
The Centro de Estudios de Fisica del Cosmos de Aragon will conduct a photometric sky survey with two new telescopes recently set up on the Javalambre mountain in Spain: the JST/T250 is a 2.55-m telescope with a plate scale of 22.67 arcsec/mm and a 3-deg-diameter field of view (FoV) and the auxiliary telescope JAST/T80 with a 82-cm primary mirror and an FoV of 2 deg diameter. A multiple CCD (9k-by-9k array size, 10-μm pixel size) mosaic camera is used in combination with filter trays or filter wheels, each containing a multitude of filters in dimensions of 101.7×96.5 mm or 106.8×106.8 mm. For this project, Schott manufactured 56 specially designed narrow band steep-edged bandpass interference filters and five broadband Sloan-filters which were completed only recently. We report here on the results of the broadband Sloan-filters with transmission bands of 324 to 400 nm (Sloan-u), 400 to 550 nm (Sloan-g), 550 to 700 nm (Sloan-r), 695 to 850 nm (Sloan-i), and 830 to 1200 nm (Sloan-z). The filters are composed of Schott filterglasses and clearglass substrates coated with interference filters and represent an improvement of broadband Sloan filters commonly used in astronomy. In spite of the absorptive elements, the filters show maximum possible transmissions achieved by magnetron sputtered filter coatings. In addition, the blocking of the filters is better than OD5 (transmission <10 to −5) in the range 250 to 1050 nm which was achieved by combining up to three substrates. A high image quality required a low transmitted wavefront error (<λ/8 locally, respectively <λ/2 globally). We report on the spectral and interferometric results measured on the filters.
The Centro de Estudios de Fisica del Cosmos de Aragon (CEFCA) will conduct a photometric sky survey with 2 new telescopes recently setup on the Javalambre mountain in Spain: the JST/T250 is a 2.55m telescope with a plate scale of 22.67”/mm and a 3° diameter field of view (FoV) and the auxiliary telescope JAST/T80 with a 82cm primary mirror and a FoV of 2 deg diameter. A multiple CCD (9k-by-9k array size, 10μm pixel size) mosaic camera is used in combination with filter trays or filter wheels, each containing a multitude of filters in dimensions of 101.7x96.5mm or 106.8x106.8mm. For this project, SCHOTT manufactured 56 specially designed narrow band steep edged bandpass interference filters and 5 broadband sloan-filters which were completed only recently. We report here on the results of the broadband sloanfilters with transmission bands of 324-400nm (sloan-u), 400-550nm (sloan-g), 550-700nm (sloan-r), 695-850nm (sloan-i) and 830-1200nm (sloan-z). The filters are composed of SCHOTT filterglasses and clearglass substrates coated with interference filters and represent an improvement of broadband sloan filters commonly used in astronomy. Inspite of the absorptive elements, the filters show maximum possible transmissions achieved by magnetron sputtered filter coatings. In addition the blocking of the filters is better than OD5 in the range 250–1050nm. A high image quality required a low transmitted wavefront error (<λ/8 locally, respectively <λ/2 globally) which was achieved by combining up to 2 substrates. We report on the spectral and interferometric results measured on the filters.
On the Javalambre mountain in Spain, the Centro de Estudios de Fisica del Cosmos de Aragon (CEFCA) has setup a new wide field telescope, the JST/T250: a 2.55 m telescope with a plate scale of 22.67”/mm and a 3° diameter field of view. To conduct a photometric sky survey, a large format mosaic camera made of 14 individual CCDs is used in combination with filter trays containing 14 filters each of theses 101.7 x 96.5 mm in size. For this instrument, SCHOTT manufactured 56 specially designed steep edged bandpass interference filters which were recently completed. The filter set consists of bandpass filters in the range between 348,5 nm and 910 nm and a longpass filter at 915 nm. Most of the filters have FWHM of 14.5 nm and a blocking between 250 and 1050 nm with optical density of OD5. Absorptive color glass substrates in combination with interference filters were used to minimize residual reflection in order to avoid ghost images. Inspite of containing absorptive elements, the filters show the maximum possible transmission. This was achieved by using magnetron sputtering for the filter coating process. The most important requirement for the continuous photometric survey is the tight tolerancing of the central wavelengths and FWHM of the filters. This insures each bandpass having a defined overlap with its neighbors. In addition, the blocking of the filters is better than OD5 in the range 250–1050 nm. A high image quality required a low transmitted wavefront error (</4 locally and </2 on the whole aperture) which was achieved even by combining 2 or 3 substrates. We report on the spectral and interferometric results measured on the whole set of filters. λλ
Reported efficiency records of >70 lm/W and the community's performance roadmaps indicate the potential of OLEDs (Organic Light Emitting Diodes) for use in general lighting applications. Within a shorter timeframe, OLED technology may be exploited for signage applications. Key differences of OLED signage devices to display and lighting devices are discussed. Recent results are presented on large area device design, polymer deposition technology, device and material performance, and encapsulation technology. Finally we discuss performance and cost targets for potential applications indicating the main challenges for future developments.
Properties of a new rare-earth doped heavy metal oxide containing silicate glass are presented. The glass has potential for fabrication of ultra-short wideband fiber and planar waveguide amplifiers. We report specific results for a fiber amplifier geometry, discussing achieved improvements in device compactness (Giles gain g* = 210 dB/m allowing up to 100 times shorter fiber) and amplification bandwidth (50% more bandwidth in C-/L-band) compared to the conventional EDFA. We also access the potential of this material for fabrication of active planar integrated waveguide devices.
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