{"title":"Compact high-resolution aerial display using freeform-mirror aerial projection with digital predistortion.","authors":"Masashige Suwa, Tomohide Morimoto","doi":"10.1364/OL.614660","DOIUrl":null,"url":null,"abstract":"<p><p>Conventional aerial display systems such as aerial imaging by retro-reflection (AIRR) and array-based aerial-imaging elements face challenges related to luminance, resolution, and system size. We propose freeform-mirror aerial projection with digital predistortion (FMAP-DP), which combines magnified reflective imaging by a single continuous freeform mirror with image-side digital predistortion. A prototype achieved a center luminance of 160.8 cd/m<sup>2</sup> and reduced the magnitude of the maximum TV distortion from 5.24% to 1.10% (signed value after correction: -1.10%). Five-viewpoint measurements at 0.80 lp/mm yielded ROI CTF values of 0.88-0.93 and full-AIA mean line-pair CTF values of 0.80-0.86. The LCD-only luminance non-uniformity was 27%, whereas the aerial-image non-uniformity was 62%, identifying luminance uniformity as a remaining limitation of the prototype.</p>","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"51 20","pages":"5753-5756"},"PeriodicalIF":3.3000,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1364/OL.614660","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/9/17 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Conventional aerial display systems such as aerial imaging by retro-reflection (AIRR) and array-based aerial-imaging elements face challenges related to luminance, resolution, and system size. We propose freeform-mirror aerial projection with digital predistortion (FMAP-DP), which combines magnified reflective imaging by a single continuous freeform mirror with image-side digital predistortion. A prototype achieved a center luminance of 160.8 cd/m2 and reduced the magnitude of the maximum TV distortion from 5.24% to 1.10% (signed value after correction: -1.10%). Five-viewpoint measurements at 0.80 lp/mm yielded ROI CTF values of 0.88-0.93 and full-AIA mean line-pair CTF values of 0.80-0.86. The LCD-only luminance non-uniformity was 27%, whereas the aerial-image non-uniformity was 62%, identifying luminance uniformity as a remaining limitation of the prototype.
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The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community.
Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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