LuxMapper - Lux Meter & Map

LuxMapper turns your smartphone's camera into a lux sensor, letting you measure and record indoor brightness in just a few taps. Results are visualized as an intuitive heatmap, making it easy to check and improve your lighting plan.

[Key Features]

■ Real-Time Lux Meter

Analyzes the camera's exposure data to show the illuminance (lux) at your current position in real time. Check brightness instantly — no dedicated lux meter required.

■ Illuminance Mapping

Measure lux at multiple points around a room to record unevenness in brightness across the space. Load a floor plan image and place measurement points for a more accurate distribution map.

■ Heatmap View

Displays measurement data as a color-gradient heatmap. Bright and dark areas are visible at a glance, making lighting imbalances and blind spots easy to spot.

■ Project Management

Save and organize measurement results as projects. Keep data from multiple rooms or locations organized and easy to revisit anytime.

■ Calibration

Correct readings to match your specific device. Adjust the factor and offset for more accurate measurements.

[Recommended For]

• Anyone looking to improve lighting at home or in the office

• Facility managers and safety/EHS staff handling lighting inspections

• Lighting designers and interior designers checking real-world conditions against ANSI/IES illuminance recommendations

• Anyone who wants an easy way to spot lighting unevenness or dark spots

[Notes]

• This app estimates illuminance from the camera's exposure data; it does not guarantee the same accuracy as a dedicated lux meter.

• Measurement accuracy varies by device model and camera performance.

• For more accurate results, use the calibration feature.