lensfile op• 資料種類:table → table
• 呼叫: import fullseye as fs; fs.ledger.lens_file_write(prescription=None, system=None, path=None, encoding: 'str' = 'ascii') -> 'dict'(要直接呼叫實作,import lensfile; lensfile.lens_file_write(prescription=None, system=None, path=None, encoding: 'str' = 'ascii') -> 'dict';從台帳取用則 opsoptics.get("lens_file_write"))
把處方寫成 lens_file_read 和設計軟體都能讀的 .zmx 文字(table)。
> 以下的詳細說明為原文 —— 摘要與標題已翻譯。
*prescription* is the dict from lens_file_read (None: the bundled example). *system* — optional — is an edited raytrace.lens_system (for example the output of lensopt.optimize_lens): its radii, thicknesses, conics, aspheric terms and media replace the prescription's surfaces while the fields, wavelengths, aperture type, comments and still-valid solves are kept (a solve whose value was edited is dropped from the output and listed in dropped_solves). The stop size is written as the system aperture: an entrance-pupil diameter (ENPD) recomputed from *system* when the prescription used ENPD or FNUM.
*path* (optional) writes the file; *encoding* "ascii" (default, plain text that diffs well) or "utf-16" (with byte-order mark, what current design programs save). Media: an (n_d, V_d) pair or a plain index becomes a model glass, a catalogue name or .agf record its name with n_d / V_d on the line; a custom Sellmeier medium without a catalogue name is refused (a reader could not resolve it). *system* may also be a raytrace3d.noncoaxial_system (the prescription is then optional): its break and return elements become COORDBRK surfaces (order flag 0 / 1 for the tracer's "xyz" / "zyx" breaks), an entrance-pupil diameter is recomputed from the stop radius.
Refused: a beamsplitter surface, a per-surface decenter / tilt (put a break around it), a tilted image or object plane, a return across an odd number of reflections or one that would need a negative thickness. A coaxial raytrace.lens_system with tilted / decentred surfaces is still refused.
A *system* (or a prescription's system) that carries configurations is written as a multi- configuration file: configuration 1 as the surface blocks, then MNUM and one row per varying thickness / curvature / glass / aspheric parameter and configuration (see the module help for what is refused); the result then also has n_configurations and rows (row counts per operand).
Returns {"text", "path", "n_surfaces", "encoding", "dropped_solves"}.
Example::
p = lens_file_read("triplet.zmx")
best = lensopt.optimize_lens(p["system"])["system"]
lens_file_write(p, system=best, path="triplet_reoptimised.zmx")
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。
• 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_read · lens_file_system · 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.