fullseye

lens_file_read — OPTICS lensfile op

使い方

.zmx の逐次レンズ処方を Fullseye の処方として読む(table)。

source is a file path, the file’s text, its bytes, or None for the bundled example :data: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 :func: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 :func:lens_file_write writes back, and report classifies every keyword as read / ignored / unsupported (see :func: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"]

ファミリ共通の入力契約(fail-closed)

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):

詳しい使い方ガイド

参考(サンプルデータ・文献)

実行できる例(この op を実際に呼ぶ検証済みサンプル)

型が繋がる次の op(table を入力に取れる)

abcd_matrix · wavefront_stats · sfr_from_edge · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd

同カテゴリ(lensfile)

lens_file_system · lens_file_write · lens_file_report


Provenance: lensfile.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.