About Evalray
Our Mission#
Making precision optical measurement accessible to all.
As display technology evolves rapidly, imaging colorimeters have become the essential tool for display panel quality control. However, the industry has long been dominated by a few international players, whose high equipment costs and closed software ecosystems have kept precision optical measurement out of reach for many companies.
Shanghai Evalray Intelligent Technology Co., Ltd. is committed to breaking this barrier by providing cost-effective, customizable optical measurement solutions through independently developed imaging colorimeter hardware and an open software platform.
Technical Expertise#
Our core team brings over 10 years of experience in optics and illumination engineering, with deep expertise in:
- Spectral Calibration Algorithms: High-precision tristimulus matching based on CIE 1931 Standard Observer functions through proprietary algorithms, eliminating the need for custom filters
- Colorimetric Algorithm Development: Complete algorithmic pipeline from grayscale values to luminance/chrominance, including flat-field correction, dark-field subtraction, and non-linear calibration
- Industrial Camera Applications: Extensive experience in optical lens, projection system, and luminaire design and implementation
- Optical Simulation & Computing: Proficiency in professional tools including Speos, Zemax, ASAP, Synopsys, TracePro, and LightTools
Core Capabilities#
Mura Detection & Quantification — Converting subjective visual defects into objective data, supporting SEMI/VESA standards
Ambient Light Inspection — Luminance and chrominance uniformity evaluation for automotive ambient lighting
Nightscape Lighting Field Testing — On-site optical measurement and verification for outdoor lighting projects
Comprehensive Display Inspection — From LCD backlight uniformity to Mini-LED local dimming
Application Areas#
| Area | Typical Applications |
|---|---|
| Display Panel Manufacturing | LCD/OLED/Mini-LED/MicroLED production line quality control |
| Smart Cockpit | Optical consistency inspection for automotive displays, instrument clusters, and ambient lighting |
| Ambient Light Inspection | Luminance and chrominance uniformity evaluation for automotive ambient lighting |
| Nightscape Lighting | On-site optical measurement and verification for outdoor lighting projects |
| AR/VR Near-Eye Display | Entrance pupil optical characteristics, field of view analysis |
| LED Lighting | Indoor/outdoor lighting design, optical simulation, and verification |
Contact Us#
We look forward to discussing your optical measurement needs and working together to advance display industry quality.
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