{
  "abstract": "Uniform color spaces and color-difference formulae rest on visual data obtained almost entirely with surface samples and conventional displays, whose primaries confine the measurements to a limited chromaticity range. The highly saturated region of color space is therefore the least measured part of human color perception, at the moment when quantum-dot, microLED, and laser displays have begun to operate inside it. Closing this gap requires stimuli more saturated than any fixed-primary device can produce, together with the stability and uniformity demanded by visual experiments. We present an acousto-optic colorimeter built for this purpose. A four-channel acousto-optic tunable filter selects narrow spectral components from a supercontinuum laser over the calibrated range of 443--660~nm, with measured linewidths of 1.37--3.20~nm; the wavelength and radiance of every component are set electronically, so the primary set itself becomes an experimental variable. A compact diffuser--light-pipe homogenizer combines the selected components into a uniform observation field, and spectral feedback stabilizes their intensities. The calibrated primary set covered 95\\% of the area enclosed by the CIE 1964 $10^{\\circ}$ spectral locus in the $x,y$ chromaticity plane. The calculated maximum luminance reached 1406~cd\\,m$^{-2}$, with 328~cd\\,m$^{-2}$ available at the gray Robertson chromaticity. Across an 18-mm observation field the mean spatial $ΔE_{00}$ difference was 0.913, and five Robertson color centers reproduced under continuous feedback gave mean target errors of 0.34--1.26~$ΔE_{00}$ over 10-min intervals. The instrument thus delivers calibrated, uniform, and stable highly saturated stimuli, and is intended to extend the empirical basis of color-difference measurement into the region where data are still absent.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.07988",
  "author_total": 5,
  "authors": [
    {
      "name": "Pavel Aksentsev"
    },
    {
      "name": "Georgiy Lobarev"
    },
    {
      "name": "Sergey Korchagin"
    },
    {
      "name": "Olga Polschikova"
    },
    {
      "name": "Egor Ershov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6hd7td0h86yzy.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.07988",
  "fulltext_url": null,
  "id": "6hd7td0h86yzy",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.07988",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "openalex",
      "3107|Color Science and Applications"
    ]
  ],
  "openalex": "W7220952555",
  "pdf_url": "https://arxiv.org/pdf/2610.07988",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6hd7td0h86yzy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:22Z",
      "native_id": "2610.07988",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.07988"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    }
  ],
  "title": "An Acousto-Optic Colorimeter",
  "title_text": "An Acousto-Optic Colorimeter",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:22Z",
  "url": "https://research.draconitic.com/paper/6hd7td0h86yzy",
  "venue": "arXiv",
  "versions": []
}