illumination optable → tableimport fullseye as fs; fs.ledger.defect_contrast(light, surface='satin', slopes_deg=(2.0, 5.0, 10.0, 20.0), camera=(0.0, 0.0, 300.0), point=(0.0, 0.0), n_azimuth=12, pigment_albedo_ratio=0.5) (実装を直接呼ぶなら import illumdesign; illumdesign.defect_contrast(light, surface='satin', slopes_deg=(2.0, 5.0, 10.0, 20.0), camera=(0.0, 0.0, 300.0), point=(0.0, 0.0), n_azimuth=12, pigment_albedo_ratio=0.5)、台帳から引くなら opsoptics.get("defect_contrast"))Contrast of topographic and pigment defects under a light (table).
For each facet slope in slopes_deg the radiance toward camera of a
facet tilted by that slope (azimuth swept in n_azimuth steps) is compared
with the flat surface at point: contrast = (L_defect − L_flat) /
(L_defect + L_flat) (Michelson, −1..1; the sign says whether the flank
appears brighter or darker than the surround). Reported per slope as
mean, max_abs and azimuth_of_max. pigment is the contrast
of a flat patch whose albedo is pigment_albedo_ratio × the surround —
the number specular glare dilutes. scatter is the contrast of a
rough patch (a chipped edge, a pit floor, a fine scratch: micro-facets
of every slope, modelled as Lambertian with reflectance F + (1 − F)ρ,
the Fresnel fraction the flat surface would have sent into its specular
direction now scattered) against the surround — the defect class dark-field lighting is
built for, since a smooth facet only lights up when it mirrors the source
into the camera while a rough patch scatters some of any light there,
and at grazing incidence that Fresnel fraction is large. regime is
"bright_field" when
the flat surface returns specular light to the camera (specular ≥ diffuse
radiance) and "dark_field" otherwise. surface: a preset (matte,
satin, glossy, mirror, brushed_metal) or a dict {albedo,
roughness, f0}.
optics の全 op は入力を検証してから計算する(黙って通さない):
_mm / _um / _deg / _mrad。mm と µm の取り違えは crash ではなく「もっともらしく間違った答え」なので、名前で防ぐ。大きさから単位を推測する処理は一切しない。ValueError — float('50') は成功してしまうため、未パースの設定値が長さとして通り抜ける(実測: thin_lens('50', '200') がもっともらしい 66.667 mm を返していた)。bool も True == 1 の暗黙昇格として拒否。ValueError(実数枠のみ。虚部の無言切り捨て・マスク剥がしを拒否)。NaN/Inf は全入力で ValueError。depth_of_field の過焦点距離以遠の far_mm = inf(それが過焦点距離の定義)と gaussian_beam のウエストでの wavefront_radius_mm = inf(平面波面の曲率半径)。どちらも有限の相棒(far_is_infinite / curvature_per_mm)を併せて返す。それ以外の無言 NaN/Inf は内部で検出して ValueError —「float64 が溢れた」と「答えが無限大」は別の主張なので、後者の顔で前者を返さない。optics.MAX_GRID(4096)、供給された場/PSF/開口は optics.MAX_FIELD_ELEMENTS(2^24)、ABCD 素子列は optics.MAX_SYSTEM_ELEMENTS(1024)、Zernike は MAX_ZERNIKE_TERMS(512)/ MAX_ZERNIKE_ORDER(40)/ MAX_ZERNIKE_BASIS(2^25)。小さな引数から巨大な内部確保が起きる経路(実測: n_max=40 × 4096² で 108 GB)を fail-closed で塞ぐ。| 物理的に不可能な状態も拒否: 偏光度 > 1 の Stokes ベクトル、負の透過率、負の強度、n- | m | が奇数などの不正な Zernike 添字。 |
py -3.11 examples/illumination_design_demo.pytable を入力に取れる)abcd_matrix · wavefront_stats · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd · spot_diagram
illumination)light_source · irradiance_map · illumination_uniformity · lighting_sweep · illumination_design
Provenance: illumdesign.py — OPTICS operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.