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Light Scope - Lux Meter

Name: Light Scope - Lux Meter
Availability: InStock
Rating: 3.1 (1 reviews)

Turn your iPhone into a scientific-grade tool. Measure lux, color temperature, and contrast ratios with laboratory-level algorithms for photography, design, and horticulture.

Key Figures

Downloads

72K+

User Rating

3.1/5

Total Ratings

Publisher

Byungil Park

Turn Your iPhone into a Professional Light Lab

Stop guessing and start measuring with lab-grade precision. From film sets to indoor gardens, Light Scope provides the technical accuracy you need without the bulky hardware.

Professional Studio Accuracy

Analyze Color Temperature (K) and Luminous Intensity (cd) using advanced CMOS sensor algorithms. Perfect for matching lights on set or calibrating your creative workspace.

Design for Accessibility

Evaluate contrast ratios instantly based on WCAG standards. A vital tool for UI/UX designers and architects ensuring visual clarity and legal compliance in every environment.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Light Scope - Lux Meter - Smartphone screen showing the Light Scope app measuring illuminance, luminous intensity, and color temperature. — Smartphone screen showing the Light Scope app measuring illuminance, luminous intensity, and color temperature.

Light Scope - Lux Meter - A screenshot of the Light Scope app showing real-time light measurement data including lux and color temperature over an outdoor urban scene. — A screenshot of the Light Scope app showing real-time light measurement data including lux and color temperature over an outdoor urban scene.

Light Scope - Lux Meter - Light Scope app interface displaying real-time histogram contrast ratio meeting WCAG standards and noise measurement data — Light Scope app interface displaying real-time histogram contrast ratio meeting WCAG standards and noise measurement data

Light Scope - Lux Meter - Screenshot of Light Scope app showing contrast ratio and SNR noise measurement levels for lighting analysis. — Screenshot of Light Scope app showing contrast ratio and SNR noise measurement levels for lighting analysis.

Light Scope - Lux Meter - Measurement detail view in the Light Scope app showing lux and luminous intensity values for a potted plant — Measurement detail view in the Light Scope app showing lux and luminous intensity values for a potted plant

Light Scope - Lux Meter - Light measurement detail screen showing color temperature and camera EXIF data including ISO and exposure time — Light measurement detail screen showing color temperature and camera EXIF data including ISO and exposure time

Light Scope - Lux Meter - Light Scope app histogram analysis interface showing color temperature and brightness distribution chart. — Light Scope app histogram analysis interface showing color temperature and brightness distribution chart.

Light Scope - Lux Meter - Measurement history screen showing illuminance trends and recorded light data logs — Measurement history screen showing illuminance trends and recorded light data logs

Light Scope - Lux Meter - The settings interface of Light Scope Lux Meter app featuring illuminance calibration and measurement distance sliders. — The settings interface of Light Scope Lux Meter app featuring illuminance calibration and measurement distance sliders.

Light Scope - Lux Meter - Information screen of Light Scope app showing measurement principles and formulas for lux and candela — Information screen of Light Scope app showing measurement principles and formulas for lux and candela

Description

LightScope is a comprehensive solution providing professional light measurement and analysis using your device's camera sensor. 【Key Measurement Features】 • Illuminance (lux) Measurement: Calculates accurate illuminance by analyzing EXIF data from the camera sensor. Illuminance is derived using the formula: (F-number² / (Exposure Time × ISO)) × Calibration Factor. • Luminous Intensity (candela) Calculation: Automatically calculates the luminous intensity of a light source based on the set distance. Uses the formula: Illuminance (lux) × Distance². • Color Temperature (K) Analysis: Precisely measures color temperature in the range of 1500K~15000K by converting RGB values to XYZ color space using McCamy's formula. • Real-time Histogram: Visualizes the balance of shadows, midtones, and highlights through 16-level brightness distribution analysis. • Contrast Ratio Measurement: Evaluates the ratio between the brightest and darkest parts of a scene according to WCAG accessibility standards. • Noise Measurement (SNR): Calculates the signal-to-noise ratio in dB to evaluate image quality in the shooting environment. 【Advanced Features】 • Image Capture and Storage: Captures camera images at the time of measurement and stores them with measurement data. • Full-screen Image View: Zoom, pan, and rotate captured images for detailed inspection. • Gallery Saving: Save captured images to your device's photo library. • Measurement History and Trends: Save all measurements chronologically and visualize trends with graphs. • Camera Full-screen Mode: Hide panels to focus on the camera view while checking key measurements via a mini info panel. • Perfect Dark/Light Mode Support: All UI elements automatically adapt to the system theme. 【User Settings】 • Illuminance Calibration: Adjust the calibration factor for more accurate measurements based on your environment. • Distance Setting: Set the distance to the light source for precise luminous intensity (cd) calculations. • Front/Rear Camera Selection: Choose the appropriate camera for your measurement situation. 【Technical Features】 • Support for measuring various light source types: natural light, LED, fluorescent, incandescent, etc. • Algorithm optimization for stable color temperature calculation even in low-light environments • 10-frame moving average filter for measurement stabilization • Center-weighted image analysis for accurate evaluation of main subject quality • Automatic exposure quality assessment based on histogram analysis Perfect tool for photographers, videographers, lighting designers, UI/UX developers, and anyone who needs accurate light measurements.