lensfile op• 資料種類:無 → table(僅由參數決定的運算子 —— 不接受影像或資料輸入)
• 呼叫: import fullseye as fs; fs.ledger.lens_file_read(source=None, allow_partial: 'bool' = False, glass_dir=None) -> 'dict'(要直接呼叫實作,import lensfile; lensfile.lens_file_read(source=None, allow_partial: 'bool' = False, glass_dir=None) -> 'dict';從台帳取用則 opsoptics.get("lens_file_read"))
將 .zmx 逐次透鏡處方讀入 Fullseye 的處方(table)。
> 以下的詳細說明為原文 —— 摘要與標題已翻譯。
*source* is a file path, the file's text, its bytes, or None for the bundled example ZMX_EXAMPLE (a Cooke triplet, f ≈ 50 mm, f/5).
Encodings: UTF-16 with a byte-order mark (what current design programs save), UTF-16 without one (detected from the NUL pattern), UTF-8 and Latin-1. *glass_dir* (or the environment variable FULLSEYE_GLASS_DIR) is a directory of .agf glass catalogues searched before the built-in material table. *allow_partial* admits the approximations listed in the module help and marks the result approximate=True; without it they are refused.
Returns {"system", "name", "notes", "unit", "aperture", "field_type", "fields", "wavelengths", "primary", "surfaces", "solves", "approximate", "encoding", "source", "report"}: system is a ready raytrace.lens_system at the primary wavelength (field 0 — pick a field
with lens_file_system), fields are {"x", "y", "weight", "field"} with field the radial value raytrace takes (degrees or mm), surfaces is the file-level model (curvatures in 1/mm, signed thicknesses as the file stores them, glasses, apertures, solves) that lens_file_write writes back, and report classifies every keyword as read / ignored / unsupported (see lens_file_report).
A file with an MNUM table (more than one configuration) is read into the active configuration plus system["configurations"], a list with one sparse override dict per configuration (see lensconfig); the result also carries n_configurations and active_configuration (0-based).
A file with COORDBRK surfaces is read into a raytrace3d.noncoaxial_system (noncoaxial is True, system is that table, each field's field is the pair (x, y), pupil holds the entrance-pupil radius, stop radius and effective focal length found with real axial rays, surface_records[j] the tracer records of file surface j); the conventions are in the module help.
Example::
p = lens_file_read("triplet.zmx")
RT.paraxial_trace(p["system"])["efl"]
sysf = lens_file_system(p, field_index=2) # the 20-degree field
RT.spot_stats(sysf)
q = lens_file_read("folded.zmx") # tilts / decentres: a non-coaxial system
raytrace3d.noncoaxial_spot(lens_file_system(q, field_index=1))["rms_radius"]
optics 的每個運算子都先檢驗輸入再計算(不讓任何東西無聲通過):
• 單位寫進參數名 —— _mm / _um / _deg / _mrad。把 mm 和 µm 弄混不會當掉,而是給出「看似合理卻是錯的答案」,所以用命名來防。這裡絕不從數值大小去猜單位。
• 字串一律 ValueError —— float('50') 會成功,於是未解析的設定值會被當成長度混進來(實測:thin_lens('50', '200') 曾回傳看似合理的 66.667 mm)。bool 也按 True == 1 的隱式提升拒絕。
• complex / masked array 一律 ValueError(僅接受實數槽位;拒絕無聲丟棄虛部或剝掉遮罩)。所有輸入中的 NaN/Inf 一律 ValueError。
• 逐項點名拒絕除零及其近親:焦距 0、曲率半徑 0、折射率 <= 0、全不透明光闌(全為 0,正規化變成 0/0)、總和 <= 0 的 PSF、S0 = 0 的 Stokes 向量、物體位於前焦點(像在無窮遠)。
• 只有兩個運算子會回傳非有限值,而且都寫進了契約:depth_of_field 在超焦距以外回傳 far_mm = inf(這正是超焦距的定義),gaussian_beam 在束腰處回傳 wavefront_radius_mm = inf(平面波前的曲率半徑)。兩者都同時回傳一個有限的夥伴(far_is_infinite / curvature_per_mm)。除此之外的無聲 NaN/Inf 都在內部檢出並 ValueError ——「float64 溢位了」和「答案是無窮大」是兩種不同的主張,不能拿後者的臉去交付前者。
• 尺寸上限:生成網格受 optics.MAX_GRID(4096)限制,傳入的場/PSF/光闌受 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「小參數引發巨大內部配置」的路徑(實測:n_max=40 × 4096² 需要 108 GB)。
• 物理上不可能的狀態同樣拒絕:偏振度 > 1 的 Stokes 向量、負穿透率、負強度、n-|m| 為奇數等非法 Zernike 指標。
• 範例資料目錄(下載 URL / 授權) —— 2-D 用 skimage.data(BSD/公有領域)加合成圖,3-D 給出真實資料源(Stanford/PDS 等)的下載 URL。
• 運算子來歷與參考文獻 —— 該運算子族所依據的研究/方法出處。
• 演算法的正典(作者、年份)與用途見上面的族使用指南。
• optical_design_metrics — py -3.11 examples/optical_design_metrics.py
• poc_lens_file_roundtrip — py -3.11 examples/poc_lens_file_roundtrip.py
• poc_zoom_configurations — py -3.11 examples/poc_zoom_configurations.py
table 作為輸入)abcd_matrix · wavefront_stats · sfr_from_edge · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd
lensfile)lens_file_system · lens_file_write · lens_file_report
*Provenance: lensfile.py — OPTICS 運算子登記表。本條目由 tools/opdocs.py md 自動產生(請勿手動編輯)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.