coherent opなし → image2d(引数だけで決まる op —— 画像やデータの入力を取らない)import fullseye as fs; fs.ledger.laser_line_coherent(shape=(96, 512), wavelength_um=0.65, sin_u_obs=0.05, pixel_um=2.0, line_width_um=20.0, height_um=20.0, sin_theta=0.5, row0=None, polarizations=1, n_patterns=1, pixel_oversample=2, roughness_rad=None, noise=0.0, seed=0, noise_seed=None) (実装を直接呼ぶなら import coherent; coherent.laser_line_coherent(shape=(96, 512), wavelength_um=0.65, sin_u_obs=0.05, pixel_um=2.0, line_width_um=20.0, height_um=20.0, sin_theta=0.5, row0=None, polarizations=1, n_patterns=1, pixel_oversample=2, roughness_rad=None, noise=0.0, seed=0, noise_seed=None)、台帳から引くなら opsoptics.get("laser_line_coherent"))A sheet-of-light laser line on a rough surface, imaged with its speckle (image2d).
Object-side coordinates, magnification 1: one output pixel covers pixel_um on the
part. The line is a Gaussian band along the columns, intensity 1/e² half-width
line_width_um (as seen by the camera), centred on the row
row0 + height_um · sin_theta / pixel_um (height_um a number or one value per
column, default 20 µm so that sin_theta acts on the default call; row0 defaults
to the middle row) — the triangulation shift. Its amplitude
multiplies a random phase screen fixed to the part (seed), the field passes the
observation pupil sin_u_obs (cut-off sin_u/λ), and the intensity is integrated
over each pixel (pixel_oversample). polarizations × n_patterns independent
patterns are averaged (a moving diffuser / several wavelengths). noise adds
Gaussian read noise of that standard deviation relative to the line’s peak mean
intensity (seeded by noise_seed, so a static part with several noisy frames is
same seed, different noise_seed). The mean peak intensity is 1.
The true centre row is returned implicitly by the formula above; see
:func:triangulation_speckle_limit for the floor this sets. Limits: scalar, paraxial,
in focus, no foreshortening of the line width with θ, no Scheimpflug, phase screen
uncorrelated between fine samples.
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/poc_laser_line_speckle_floor.pyimage2d を入力に取れる)fraunhofer_pattern · pupil_psf · pupil_blur · psf_to_mtf · edge_spread · veiling_glare_index · emva_pair_statistics · emva_defect_pixels
coherent)coherent_image · speckle_field · speckle_statistics · triangulation_speckle_limit · speckle_reduction
Provenance: coherent.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.