13

Register 13 · Light & optics.

twelve marks · how the spectrum gets generated · same construction · 200×200 · integer geometry · currentColor + brass-deep · 12 marks · one of the 17 registers on the Backstaff.

This register is one face of the Backstaff evidence system — the held instrument that holds the Astrolabe measurement engine, maps compliance controls, and engraves every evidence record into a register of record. The full reference library lives at /corpus; the alphabetical view at /corpus/glossary; the operator view at /corpus/switchboard.

Buyer path

Turn this source into a workflow review.

The library is the source layer. For a live deployment, bring Planisphere the workflow, systems, owners, and compliance question; we map the graph, run the harness, and return evidence your internal or external compliance team can inspect.

01 ·

Marks.

12 source marks in this register.
Prism#01 · atom

splits white light into bands

Reference

Lens#02 · atom

biconvex · converges light

Reference

Ray#03 · atom

a single line of light

Reference

Focal point#04 · atom

where parallel rays converge

Reference

Beam splitter#05 · atom

50/50 diagonal mirror

Reference

Slit#06 · atom

single-slit aperture

Reference

parallel slits · interference pattern

Reference

Refraction angle#08 · atom

Snell's law at the interface

Reference

Mirror#09 · atom

angle in equals angle out

Reference

Aperture#10 · atom

adjustable opening

Reference

Iris diaphragm#11 · atom

multi-blade variable aperture

Reference

Interferometer#12 · atom

two-arm interference

Reference