Elopsyssections

Electro-optical product design and costing. Pick a section on the ring, or start in the handbook at the centre.

Section 2Telescopic Sight Design

Telescopic sight design

First-order optics for riflescopes and weapon sights · results update as you type

Section 3Night Vision Monocular

Night vision monocular design

Passive image-intensifier monocular · objective and eyepiece first-order design · results update as you type

Section 4Laser Range Finder

Range equation · receiver MDS · collimator and receiver optics · lens prescriptions · results update as you type

Section 5Dioptre Adjustment

Eyepiece movement for a dioptre range from the eyepiece focal length · results update as you type

Section 6Holographic Sight

MOA / mrad per click · screw pitch · clicks, travel and length · shift at distance · results update as you type

Section 7Cassegrain Telescope

Two-mirror layout · conic constants · exact ray trace · eyepiece or receiver lens · results update as you type

HandbookOptics Fundamentals & Formulae

Geometrical optics and electro-optic design · every card is a live calculator · search or pick a topic

· Costing

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