# 平面镜成像 - Plane Mirror Imaging

平面镜成像交互式演示，包含光线追踪和虚像形成

> 标准页面: https://elysiatools.com/zh/visualizations/plane-mirror-imaging

- **分类:** Physics

## 概述

Interactive visualization of plane mirror imaging demonstrating virtual image formation with ray tracing. Features mirror imaging formulas: image distance d_i = -d_o (negative for virtual image), magnification m = h_i/h_o = +1 (upright, same size), law of reflection θ_i = θ_r (incident angle = reflected angle). Real-time visualization includes: (1) Object (solid red arrow) with adjustable position and height; (2) Virtual image (dashed blue arrow) behind mirror at equal distance; (3) Mirror with hatched back indicating reflective surface; (4) Light ray tracing: incident rays (orange) from object to mirror, reflected rays to observer, virtual ray extensions (blue dashed) showing apparent origin from virtual image; (5) Observer eye position with field of view visualization; (6) Normal line perpendicular to mirror surface. Interactive controls: object distance (20-200 px), object height (20-150 px), object tilt angle (-30° to 30°), eye position (50-300 px), eye height (-100 to 150 px), mirror height (100-400 px), mirror tilt angle (-30° to 30°). Toggle options: show/hide light rays, virtual ray extensions, observer eye, field of view. Three preset configurations: vertical mirror, tilted mirror, full-length mirror. Real-time info display: object distance (m), image distance (m), magnification (1.0x), image type (Virtual). Educational content covers: what is plane mirror imaging (based on law of reflection, virtual upright same-size image), virtual image formation (rays appear to diverge from point behind mirror, cannot be projected on screen), symmetry principle (object and image equidistant from mirror, lateral inversion left-right reversal, up-down NOT inverted), ray tracing rules (perpendicular ray reflects back, arbitrary ray reflects with equal angles, backward extensions intersect at image), field of view (depends on mirror size, observer distance, object position; mirror needs at least half object height for full reflection), practical applications (dressing mirrors, periscopes, kaleidoscopes, optical instruments, rearview mirrors, solar mirrors), and lateral inversion (left-right swap, coordinate system reversal, why text appears reversed, ambulance signs). Multi-language support (zh, en, es, fr, de, ru, pt).

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