illumination op• 数据种类:无 → table(仅由参数决定的算子 —— 不接受图像或数据输入)
• 调用: import fullseye as fs; fs.ledger.coaxial_illumination(reflectance=0.5, absorptance=0.0, back_reflectance=0.04, plate_thickness_mm=1.0, plate_index=1.52, panel_mm=60.0, panel_distance_mm=60.0, camera_distance_mm=200.0, field_mm=20.0, part='mirror', telecentric=False, panel_radiance=None, shape=(65, 65), n_panel=None)(要直接调用实现,import illumdesign; illumdesign.coaxial_illumination(reflectance=0.5, absorptance=0.0, back_reflectance=0.04, plate_thickness_mm=1.0, plate_index=1.52, panel_mm=60.0, panel_distance_mm=60.0, camera_distance_mm=200.0, field_mm=20.0, part='mirror', telecentric=False, panel_radiance=None, shape=(65, 65), n_panel=None);从台账取用则 opsoptics.get("coaxial_illumination"))
同轴落射照明(半透半反镜):往返 T*R 的收支与相机看到的像(table)。
> 以下的详细说明为原文 —— 摘要与标题已翻译。
The panel (square, side *panel_mm*, unfolded distance *panel_distance_mm* from the part through the 45-degree half mirror) lights the part by one reflection (R); the camera (pinhole at *camera_distance_mm*, or telecentric) looks through the mirror (T = 1 - R - A).
Budget: round_trip = R T (1/4 for the default lossless 50/50 mirror; splitter_reflectance / splitter_transmittance carry R and T under the names the optscene coaxial light reads), optimum_reflectance = (1 - A) / 2, max_round_trip = (1 - A)^2 / 4 (0.25 for a lossless mirror), ghost_ratio = T^2 r_b / R (the back-surface reflection of the plate, relative to the front reflection, on the illumination leg) and ghost_offset_mm = 2 t tan(theta_r) cos 45 deg (its lateral shift; sin theta_r = sin 45 / n).
Image (camera view, *shape* pixels over a square field of half-width *field_mm*):
• part="mirror": a specular part shows the panel itself, so the image is R T L(panel point) with the panel point x (1 + h_panel / h_camera) (x for a telecentric lens) — the panel's non-uniformity is imaged one to one (like critical illumination) and the field goes dark beyond vignetting_edge_mm = (panel / 2) / (1 + h_panel / h_camera).
• part="matte": a Lambertian part (albedo 1) returns R T E / pi, with E the irradiance of the panel (numerical sum over an *n_panel* x *n_panel* grid; the closed form for a uniform rectangle is matte_centre_closed). *n_panel* = None uses 32.
*panel_radiance*: None = uniform 1, or a 2-D map laid over the panel square. Returns also image, uniformity (illumination_uniformity of the central 80 %; None when T = 0 and the image is dark by the budget, not by the geometry), panel_scale (1 + h_panel / h_camera).
Raises ValueError: R + A > 1, R = 0, a panel farther than the camera, unknown part.
optics 的每个算子都先校验输入再计算(不让任何东西无声通过):
• 单位写进参数名 —— _mm / _um / _deg / _mrad。把 mm 和 µm 弄混不会崩溃,而是给出「看着合理却是错的答案」,所以用命名来防。这里绝不从数值大小去猜单位。
• 字符串一律 ValueError —— float('50') 会成功,于是未解析的配置值会被当成长度混进来(实测:thin_lens('50', '200') 曾返回看着合理的 66.667 mm)。bool 也按 True == 1 的隐式提升拒绝。
• complex / masked array 一律 ValueError(仅接受实数槽位;拒绝无声丢弃虚部或剥掉掩码)。所有输入中的 NaN/Inf 一律 ValueError。
• 逐项点名拒绝除零及其近亲:焦距 0、曲率半径 0、折射率 <= 0、全不透明光阑(全为 0,归一化变成 0/0)、总和 <= 0 的 PSF、S0 = 0 的 Stokes 矢量、物体位于前焦点(像在无穷远)。
• 只有两个算子会返回非有限值,而且都写进了契约:depth_of_field 在超焦距以外返回 far_mm = inf(这正是超焦距的定义),gaussian_beam 在束腰处返回 wavefront_radius_mm = inf(平面波前的曲率半径)。两者都同时返回一个有限的搭档(far_is_infinite / curvature_per_mm)。除此之外的无声 NaN/Inf 都在内部检出并 ValueError ——「float64 溢出了」和「答案是无穷大」是两种不同的主张,不能拿后者的脸去交付前者。
• 尺寸上限:生成网格受 optics.MAX_GRID(4096)限制,传入的场/PSF/光阑受 optics.MAX_FIELD_ELEMENTS(2^24),ABCD 元件序列受 optics.MAX_SYSTEM_ELEMENTS(1024),Zernike 受 MAX_ZERNIKE_TERMS(512)/ MAX_ZERNIKE_ORDER(40)/ MAX_ZERNIKE_BASIS(2^25)。以 fail-closed 堵住「小参数引发巨大内部分配」的路径(实测:n_max=40 × 4096² 需要 108 GB)。
• 物理上不可能的状态同样拒绝:偏振度 > 1 的 Stokes 矢量、负透过率、负强度、n-|m| 为奇数等非法 Zernike 指标。
• mv_illumination_practice — 照明实务知识 —— 波长、偏振、点亮方式、外部光、安全
• 示例数据目录(下载 URL / 许可证) —— 2-D 用 skimage.data(BSD/公有领域)加合成图,3-D 给出真实数据源(Stanford/PDS 等)的下载 URL。
• 算子来历与参考文献 —— 该算子族所依据的研究/方法出处。
• 算法的正典(作者、年份)与用途见上面的族使用指南。
• poc_spectrometer_illumination — py -3.11 examples/poc_spectrometer_illumination.py
table 作为输入)abcd_matrix · wavefront_stats · sfr_from_edge · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd
illumination)light_source · irradiance_map · illumination_uniformity · defect_contrast · lighting_sweep · illumination_design · solid_angle_light · solid_angle_boundaries
*Provenance: illumdesign.py — OPTICS 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.