Supreme-black levels enabled by touchproof microcavity surface texture on anti-backscatter matrix.

Emerging immersive high-dynamic range display technologies require not only high peak luminance but also true black levels with hemispherical reflectance below 0.001 (0.1%) to accommodate the wide dynamic range of the human eye (~10).

Antibody responses and SARS-CoV-2 infection after BNT162b2 mRNA booster vaccination among healthcare workers in Japan.

Introduction: Vaccine effectiveness against SARS-CoV-2 infections decreases due to waning immunity, and booster vaccination was therefore introduced. We estimated the anti-spike antibody (AS-ab) recovery by booster vaccination and analyzed the risk factors for SARS-CoV-2 infections.

Methods: The subjects were health care workers (HCWs) in a Chiba University Hospital vaccination cohort.

Adverse effect investigation using application software after vaccination against SARS-CoV-2 for healthcare workers.

Introduction: The usefulness of smartphone-based application software as a way to manage adverse events (AEs) after vaccination is well known. The purpose of this study is to clarify the usefulness and precautions of employing a smartphone application for collecting AEs after the administration of Comirnaty®️.

Methods: Healthcare workers (HCWs) who were vaccinated with Comirnaty®️ were asked to register for the application software and to report AEs for 14 days after vaccination.

High-precision flat-plate reference infrared radiator using perfect blackbody composite with a microcavity structure.

Onsite reference infrared radiators are used to correct thermal imagers for noncontact fever screening in real time. We have developed a flat-plate reference radiator of the highest accuracy to enhance reliability of the fever screening. Our contact-durable blackbody composite with good heat transfer, which has a microcavity structured surface offering high emissivity (>0.

Micro-cavity perfect blackbody composite with good heat transfer towards a flat-plate reference radiation source for thermal imagers.

One of the key measures to secure reliable fever screening is to calibrate a thermal imager with an accurate flat-plate blackbody device in real time. We provide durable perfect blackbody plates with both high emissivity of >0.998 and good heat transfer, ideal for a high-precision reference radiation source.