Convert Lumens per square inch to Microlux
Convert Lumens per square inch (lm/in²) to Microlux (µlx) instantly and accurately.
Conversion Formula
µlx = lm/in² × 1550003100
About Lumens per square inch
The lumen per square inch (lm/in²) equals 1/0.00064516 lx ≈ 1 550 lx. Used in US optics and LED backlight datasheets when specifying output over small aperture areas. Rare in general lighting but found in US optical engineering catalogs and LCD backlight specifications. 1 lm/in² = 1/0.00064516 lx.
About Microlux
The microlux (µlx) equals 10⁻⁶ lx. Natural night illuminance: a moonless overcast sky ~100 µlx; scattered starlight ~200-300 µlx; crescent moon ~10-50 µlx. Used in night-vision equipment sensitivity specifications and observatory site-quality assessments. 1 µlx = 10⁻⁶ lx.
Quick Reference Table
| Lumens per square inch (lm/in²) | Microlux (µlx) |
|---|---|
| 1 lm/in² | 1.55 × 109 µlx |
| 2 lm/in² | 3.1 × 109 µlx |
| 5 lm/in² | 7.75 × 109 µlx |
| 10 lm/in² | 1.55 × 1010 µlx |
| 25 lm/in² | 3.875 × 1010 µlx |
| 50 lm/in² | 7.75 × 1010 µlx |
| 100 lm/in² | 1.55 × 1011 µlx |