We present a novel autostereoscopic optical see-through system for augmented reality (AR). It uses transparent holographic element (HOE) to separate the views produced by two, or more, digital projectors. is minimally intrusive AR that does not require user wear special glasses any other equipment, since would see different images depending on point of view. The HOE itself thin glass plate plastic film can easily be incorporated into surfaces, such as window. technology offers great...

Large-scale and cost-effective manufacturing of ceramic micro devices based on tape stacking requires the development inspection systems to perform high-resolution in-process quality control embedded manufactured cavities, metal structures defects.With an optical coherence tomography (OCT) system operating at 1.3 µm a dedicated automated line segmentation algorithm, layer thicknesses can be measured laser-machined channels verified in alumina ceramics around 100 depth.Monte Carlo simulations...

The manufacturing of flat panel displays requires a number photomasks for the placement pixel patterns and supporting transistor arrays. For large area photomasks, dedicated ultra-precision writers have been developed production these chromium on glass or quartz plates. dimensional tolerances in X Y absolute pattern plates, with areas measured square meters, are range 200–300 nm (3σ). To verify 2D coordinate measurement machines used having even tighter tolerance requirements. This paper...

Bonding of automotive glass is generally performed with 1C PUR adhesive on a primed ceramic frit or naked surface. The aim this research was to replace the chemistry primer an atmospheric pressure plasma treatment (APPT) compressed air for cleaning and activation directly before bonding. Characterization surface energy through contact angle, XPS, TOF-SIMS peel bead test. results show that APPT can clean surface, improve wetting, bonding but reduce number non bridging oxygen bond to. highest...

Coherence scanning interferometry used in optical profilers are typically good for Z-calibration at nm-levels, but the X,Y accuracy is often left without further notice than typical resolution limits of optics, i.e. order ~1 µm. For calibration metrology tools we rely on traceable artefacts, e.g. gauge blocks traditional coordinate measurement machines, and lithographically mask made artefacts microscope calibrations. In situations where repeatability tool much better uncertainty artefact,...

Optical coherence tomography (OCT) is useful for materials defect analysis and inspection with the additional possibility of quantitative dimensional metrology. Here, we present an automated image-processing algorithm OCT roll-to-roll multilayers in 3D manufacturing advanced ceramics. It has advantage avoiding filtering preset modeling, will, thus, introduce a simplification. The validated its capability measuring thickness ceramic layers, extracting boundaries embedded features irregular...

High-quality photomasks are a prerequisite for the production of flat panel TVs, tablets and other kinds high-resolution displays. During past years, resolution demand has become more accelerated, today, high-definition standard HD, 1920 × 1080 pixels2, is well established, already next-generation so-called ultra-high-definition UHD or 4K display entering market. Highly advanced mask writers used to produce needed such The dimensional tolerance in X Y on absolute pattern placement these...

A model for the calculation of diffuse reflectance spectra oxidized metals is applied to thermally copper films and compared with experiments. The calculations reproduce spectral structure observed in It demonstrated that air-oxide interface roughness dominates scattering wavelengths shorter than absorption threshold oxide, oxide-metal longer wavelengths. Using fitting rms values two interfaces are determined independently. agree results from high accuracy stylus profiling oxide front...

Using dedicated stereo camera systems and structured light is a well-known method for measuring the 3D shape of large surfaces. However problem not trivial when high accuracy, in range few tens microns, needed. Many error sources need to be handled carefully order obtain quality results. In this study, we present measurement based on low-cost illumination solutions combined with high-precision image analysis new approach calibration reconstruction. The setup consists two ordinary digital...

Optical coherence tomography (OCT) has proven to be a useful tool for investigating internal structures in ceramic tapes, and the technique is expected important roll-to-roll manufacturing. However, because of high scattering materials, noise speckles deteriorate image quality, which makes automated quantitative measurements interfaces difficult. To overcome this difficulty we present paper an innovative analysis approach based on volumetric OCT data. The engine 3D processing algorithm. It...

A high vacuum instrument for angle-resolved scattering studies in the 30 nm - 633 wavelength region has been built. Scattering can be measured at nearly all angles, not only plane of incidence, but also out incident by mounting detectors on a trolley semi-circular rotatable arm. The sample is mounted an XYZ-translator which allows angle incidence to continuously varied from 0 900. Three inter-changable detectors, two PM-tubes and one channel electron multiplier cover complete interest....

The demands on in-process 3D monitoring in ceramic micromanufacturing industry require a high-precision, non-destructive, rapid and automated inspection technique for measuring the thickness of component layer, determining shape dimensions embedded structures, detecting de-bonding, cracks, warping deformation. One promising metrology techniques is optical coherence tomography (OCT). With dedicated image processing algorithm industrial product data exchange standard, model-based integration...

For an emerging market a mass and cost-effective production of non-silicon micro devices requires inprocess accurate 3D monitoring to assure the quality.Optical coherence tomography (OCT) providing highresolution contactless imaging is used inspect surface quality laser-machined alumina ceramic layer.Quantitatively root mean square (rms) roughness measured by traditional means provides input parameters Monte Carlo simulation OCT method.We found that both free embedded surfaces...

Quality inspection of multi layer ceramic micro devices is a challenging task for large-scale production. Detection embedded cavities, metal strips or defects within sintered alumi ...

Laser micro-machining is a growing field for micro manufacturing in many different materials. To obtain better understanding of the accuracy laser equipment, moreover machine’s specification, precise verification test needed to measure absolute performance machine. Available capability information usually based on specifications given machine installations by deliverers. But practice performances some machines are way far off from their specifications. When forming EUMINAfab infrastructure...