{"closest_prior_art":[{"name":"Object-specific microfading linked to museum lighting policy","overlap":"Microfading applies a controlled accelerated dose, records reflectance spectra in real time, derives colour change per cumulative dose, identifies the most sensitive feature, and informs an object-specific exhibition light strategy rather than relying only on a collection-wide paper limit.","remaining_difference":"It tests tiny areas of the original object and ordinarily assigns Blue Wool sensitivity; the proposal instead tests period-analog coupons under the actual candidate lamp-filter geometries, evaluates contrasts among simulated textual layers, and requires held-out prediction before any original is illuminated.","source_ids":["SRC1"]},{"name":"Accelerated fading study of handwritten and traditionally prepared iron-gall inks under a specific archival display-lighting system","overlap":"This work reproduces a particular gallery-lighting environment, exposes handwritten and recipe-based ink samples, and monitors fading with reflectance spectrophotometry—the proposal's central lamp-material-dose-response combination in the manuscript domain.","remaining_difference":"The reported work was still in progress and did not compare multiple removable filter configurations, preregister a dose-to-contrast threshold, validate predictions on held-out coupons, or use prediction to select a pre-corrected exhibition configuration.","source_ids":["SRC2"]},{"name":"Controlled LED lightfastness and contrast-response testing of writing-ink coupons","overlap":"Prepared ink-on-paper specimens are exposed under characterized museum-like LED lighting; repeated reflectance spectra quantify dose-response curves, ink-paper contrast and legibility loss, measurement uncertainty, and implications for display limits and rotation.","remaining_difference":"It evaluates modern fountain-pen inks under one principal illuminant rather than manuscript-specific period analogs containing revisions, overwriting and cancellations under competing lamp-filter configurations; it does not validate transfer to a unique witness or compare configuration selection against a fixed-limit baseline.","source_ids":["SRC3"]},{"name":"Official museum-lighting dose and spectral-planning guidance","overlap":"The guidance treats light damage as cumulative and irreversible, relates damage to spectrum, object sensitivity and dose, recommends choosing intensity, duration and source from an acceptable-change target, and notes that lamps should be compared in a trial setup.","remaining_difference":"It provides category- and dose-based planning rather than an empirically fitted coupon response model that predicts interpretation-bearing local contrast and selects among candidate configurations before commitment.","source_ids":["SRC4"]}],"contrastive_claim_falsifier":"In preregistered blinded trials, coupon-derived response curves fail to predict held-out wavelength-specific or local-contrast changes more accurately or with better calibrated conservative intervals than the repository's fixed-limit baseline; they select no safer or more access-preserving configuration, or coupon-to-original uncertainty is necessarily so large that every decision reverts to the existing hard limit.","contrastive_claim_remaining":"For a proposed literary-manuscript display, replicated period-analog coupons containing paired inks, overwriting and cancellations, tested under the actual baseline and removable lamp-filter configurations, can predict held-out loss of interpretation-bearing local contrast and select a physically pre-corrected configuration better than a conservative material-class limit while preserving the independent hard ceiling. The novelty-bearing residue is the validated configuration-selection and transfer-uncertainty protocol, not accelerated lightfastness testing, spectral reflectance measurement, dose-based display planning, or object-specific lighting policy generally.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"Four search lanes covered the named intervention, microfading/lightfastness terminology, museum-lighting practices and standards, and combinations of manuscript inks, specific display lamps, accelerated coupons, reflectance, contrast and dosimetry. Four opened sources from four publishers include two primary studies and two official institutional sources. The screen found direct and component-level prior art, so it does not infer novelty from phrase misses.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"The proposed bench test is finite and measurable: three independent coupon sets, one lamp, baseline plus two filters, bounded doses, preregistered response fitting, and held-out prediction/configuration selection. Comparable ink-paper exposure and repeated-reflectance methods are demonstrated in SRC2 and SRC3. No original manuscript need be sampled or illuminated.","source_ids":["SRC2","SRC3"],"status":"PASS"},"distinct_testable_claim":{"rationale":"Although the central light-response approach substantially overlaps prior art, the residual claim is falsifiable: actual-configuration, period-analog, multi-layer contrast curves must improve blinded held-out prediction and physical configuration selection over a fixed-limit baseline. Existing sources do not report that complete comparison.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"Initial work is restricted to sacrificial coupons and reversible lamp/filter hardware, avoiding the original-object microfading practiced in SRC1. The proposal preserves independent hard ceilings, requires conservator recommendation and custodian authorization, and makes no automated exposure decision. The remaining scientific risk is invalid extrapolation, which the held-out test and default-to-baseline rule directly address.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"supported_problem":{"rationale":"Official guidance states that light-induced discoloration is cumulative and irreversible and that spectrum, dose, sensitivity and low-contrast viewing all matter. Writing-ink research directly shows declining ink-paper contrast, impaired legibility, heterogeneous lightfastness, restrictive generic display limits and the access-preservation tradeoff. MUNCH reports that collection-wide paper policy does not capture individual sensitivity.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"}},"prior_art_disposition":"SUBSTANTIAL_COLLISION","problem_evidence":{"finding":"The problem is visible and well supported: illumination is required for access, yet cumulative irreversible fading varies by material and exposure history; writing inks can lose contrast and legibility, while generic high-sensitivity limits can require severe rotation. However, accelerated spectral response testing and its use in object-specific lighting decisions are already established.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P090","screen_survival":false,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["paper ink mockups accelerated light aging spectrophotometer museum exhibition","manuscript ink light fading contrast reflectance exhibition conservation research","cultural heritage mock-up coupons accelerated light ageing exhibition LED spectra filter dose response"],"source_ids":["SRC2","SRC3"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["museum manuscript lighting microfading spectroscopy ink contrast exhibition dose filter pre-exposure test","conservation lighting dosimeter reference targets spectral reflectance monitoring manuscript inks"],"source_ids":["SRC1","SRC2","SRC3"]},"products_practices_and_standards":{"no_result_note":null,"queries":["museum lighting standards object specific light sensitivity microfade testing exhibition","museum light damage dosimeter reference target cumulative exposure official"],"source_ids":["SRC1","SRC3","SRC4"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["cultural heritage lightfastness testing sacrificial samples lamp filters dose response reflectance","microfade test surrogate samples coupons exhibition lighting conservation","study light fading iron gall inks parchment display lighting"],"source_ids":["SRC1","SRC2","SRC3"]}},"sources":[{"claims_supported":["Microfading uses accelerated exposure and real-time reflected spectra to estimate individual material sensitivity.","Results are expressed as colour change per cumulative dose and compared with ISO Blue Wool standards.","Object-specific results inform agreed light strategies and revisions to collection-wide paper-lighting policy."],"publisher":"MUNCH (Munch Museum)","source_id":"SRC1","source_type":"OFFICIAL_GUIDANCE","title":"Microfading: The balance between preservation and exposure","url":"https://www.munch.no/en/about/conservation/microfading/"},{"claims_supported":["A specific archival display-lighting system was reproduced in accelerated light-aging equipment.","Handwritten historical samples and inks prepared from traditional recipes were tested.","Fading and colour change were monitored using reflectance spectrophotometry."],"publisher":"Australian Institute for the Conservation of Cultural Material","source_id":"SRC2","source_type":"PRIMARY_RESEARCH","title":"Study on the light fading of iron gall inks on parchment","url":"https://aiccm.org.au/conference-proceedings/study-on-the-light-fading-of-iron-gall-inks-on-parchment/"},{"claims_supported":["Controlled museum-like LED exposure and repeated diffuse-reflectance measurements can produce ink dose-response curves.","The study measures ink-paper colour difference, contrast, legibility loss, uncertainty and reproducibility on prepared writing-ink coupons.","Generic limits constrain display access, while material state, prior exposure and substrate interactions complicate inference and transfer."],"publisher":"npj Heritage Science / Springer Nature","source_id":"SRC3","source_type":"PRIMARY_RESEARCH","title":"The lightfastness of modern fountain pen inks: ink selection and consequences for document preservation","url":"https://www.nature.com/articles/s40494-025-01923-4"},{"claims_supported":["Light-induced discoloration is cumulative and irreversible.","Museum-lighting decisions should account for acceptable change, exposure dose, spectrum, object sensitivity, source, intensity and duration.","Low-contrast details can demand more illumination, while trial comparisons of lamps and independent conservative limits remain appropriate."],"publisher":"Rijksdienst voor het Cultureel Erfgoed","source_id":"SRC4","source_type":"OFFICIAL_GUIDANCE","title":"Lichtlijnen - beperken lichtschade museale objecten","url":"https://kennis.cultureelerfgoed.nl/index.php/Lichtlijnen_-_beperken_lichtschade_museale_objecten"}],"world_novelty_boundary":"This bounded public-web screen establishes neither world novelty nor patentability. It found substantial collision with established microfading, surrogate ink light-aging, spectral reflectance dose-response analysis, contrast/legibility assessment, and dose-informed lighting policy. It did not exhaust patents, non-indexed conservation reports, standards text, archival literature, commercial systems or non-English terminology, and it makes no claim about market size, expert acceptance or realized value. Only the narrow held-out, actual-configuration, interpretation-bearing-contrast transfer protocol remains unresolved."}