Image test standard transmission light box
Category：Other
Introduction
Introduction
The Image Test Standard Transmission Light Box is designed for precise optical testing and colorimetric evaluation in photography, graphic arts, and quality control laboratories. It provides uniform, high-CRI illumination with adjustable intensity, ensuring accurate measurement of lens characteristics, image resolution, and color fidelity. Its compact, portable design combined with professional-grade optics makes it ideal for both field and lab applications.
Standards Compliance
CIE 15:2004 — International standard for colorimetry and spectral measurement.
ISO 3664:2009 — Specifies viewing conditions for graphic arts and photography.
IEC 62471 — Photobiological safety requirements for LED lighting.
Product Advantages
1. Professional-Grade Illumination
95% uniformity across a 250mm × 190mm work area for consistent testing.
High CRI >95 ensures accurate color rendering for critical lens MTF analysis.
2. Precision Dimming Control
Adjustable 0–30,000 Lux range with dual-stage rotary knobs for coarse (1,000 Lux) and fine (100 Lux) tuning.
Ultra-stable chromaticity with Duv ±0.002.
3. Energy-Efficient Design
60,000-hour LED lifespan, 80% less energy than traditional fluorescent lamps.
Mercury-free, RoHS-compliant construction for environmentally friendly operation.
4. Portable Performance
Compact 7.5 kg build with integrated handle for easy transport.
100–240V universal power supply for global deployment.
5. Industrial Durability
Anodized aluminum housing resists scratches and chemical spills.
Operates reliably in temperatures from –20°C to 60°C.
Product Features
LED System:
DC-driven chips to eliminate flicker up to 30,000 Lux.
6,500K ±100K output matching D65 daylight standard.
Optical Design:
Diffusion panel using hollow-glass bead technology to reduce hotspots by >90%.
Test chart slot (360mm × 285mm) compatible with ISO 12233/SFRplus charts.
Control Interface:
Detented dimming knobs with tactile feedback for repeatable settings.
Digital display for real-time Lux, CRI, and color temperature readout.
Safety Systems:
Overcurrent protection (2A fuse).
Residual current device (RCD) for operator safety.
Ergonomics:
Adjustable stand mount (1/4”-20 thread) for tripod compatibility.
Vented chassis prevents heat buildup during continuous operation.
Accessories & Options:
ISO 12233:2017 resolution charts, SFRplus charts with wedge patterns.
Diffusion filters (1/2, 1/4, 1/8 stop), polarization attachments.
12V DC car adapter, 50m extension cables.
Replacement diffusion panels, optical cleaning kit.
Warranty:
24-month manufacturer warranty (extendable to 60 months).
Lifetime technical support via global hotline.
Technical Parameters
| Specification | Details |
|---|---|
| Illuminated Area | 250mm × 190mm (9.8” × 7.5”) |
| Color Temperature | 6,500K ±100K (Duv ±0.002) |
| CRI (Ra) | >95 |
| Dimming Range | 0–30,000 Lux (adjustable) |
| Power Supply | 100–240V/50–60Hz (auto-switching) |
| Max. Power Consumption | 50W |
| Dimensions (W×D×H) | 370mm × 325mm × 165mm |
| Weight | 7.5 kg |
| Operating Conditions | 0–45°C, <85% RH (non-condensing) |
FAQ
1. What is the maximum Lux output of the light box?
The light box provides up to 30,000 Lux with precise coarse and fine adjustment for critical optical testing.
2. Can it be used for MTF and resolution chart testing?
Yes. It has a dedicated slot for ISO 12233 and SFRplus test charts, enabling lens MTF and image resolution evaluation.
3. How uniform is the illumination across the work area?
Illumination uniformity is 95% across the 250mm × 190mm testing area.
4. Is it portable for field testing?
Yes. The compact 7.5 kg design with integrated handle allows easy transport to labs or field locations.
5. What safety and durability features does it have?
It includes overcurrent protection, RCD, anodized aluminum housing, and a vented chassis to ensure safe and reliable operation.
