Uniformity measurements indicate an imaging system’s tendency to become darker away from the center of the image. This is due to the radial nature of the lens which collects more light in the center. It can be particularly strong with wide angle lenses. Testing for uniformity requires a flat-field test, or uniform light source. In order to minimize cosine falloff in imaging systems with wider field of view lenses, it is important to have a light source that produces uniform illumination across the entire field of view. We also provide uniform reflectance targets for use with external light sources.
Uniform light sources < 180°
Basic Information
The Imatest LED Light Panel is a versatile and low-profile uniform light source easily integrated with Imatest hardware and charts. It includes universal mounting points and wireless light controls. It is offered with a variety of color temperatures as well as near-infrared.
It is ideal for testing all image quality factors.
The Imatest LED Lightbox is a highly uniform light source with 95% uniformity, designed for dynamic range and ultra-high resolution testing. Choose from a continuous range of light levels between 30 to 10,000 lux.
The Imatest LED Lightbox is our most popular uniform light source.
Unprecedented Resolution and Accuracy – 32 Discrete LED Wavelengths Covering Visible and NIR lighting.
Built in integrating sphere for extreme uniformity.
90%
95% (90% for NIR options)
97%
Color Temperatures & Illuminants
- Single Channel:
- 3100K
- 4100K
- 5100K
- 6500K
- NIR 850nm
- NIR 940nm
- Multi (Dual) Channel:
- 3100K & 6500K
- NIR 850nm & NIR 940nm
- One Visible & One NIR
- Powerful Synthesis Engine – Simulate any CIE Illuminant or Macbeth™ / X-RITE™ Color Patch
- 1,900K – 40,000K
Intensity
100 to 1,000 lux
NIR = 2 to 20 W/m2
30 ~ 10,000 lux
NIR = 2 to 20 W/m2
30 to 95,000 lux (spectrum dependent)
Diffuser Panel Active Area
- A: 229 x 152mm (9×6″)
- B: 260 x 220mm (10.2×8.6″)
- C: 432 x 305mm (17×12″)
- D: 610 x 432mm (24×17″)
- Contact sales@imatest.com.
- B: 260 x 220mm (10.2×8.6″)
- C: 432 x 305mm (17×12″)
Contact sales@imatest.com.
- 75mm (3″) Dia. Viewing port
- Ultra wide 180° FoV option
System Dimensions W x H x D
- A: 299 x 222 x 40mm (11.77×8.74×1.57″)
- B: 384 x 334 x 60mm (15.12×13.15×2.36″)
- C: 512 x 385 x 60mm (20.16×15.16×2.36″)
- D: 690 x 512 x 60mm (27.17×24.4×2.36″)
- B: 400 x 380 x 200mm (15.7x15x7.9″)
- C: 600 x 490 x 200mm (23.6×19.3×7.9″)
- 460 x 405 x 305mm (18.1×15.8×12″)
Controls
Manual, USB or Wireless (WiFi) Controls
Manual, USB or Wireless (WiFi) Controls
Proprietary software control: Contains Full Spectral Calibration and Handles Spectral Fitting, Preset Storage, and Real-time Optical Feedback
Ultra-Wide Uniform light sources >180°
Basic Information
The LB3 spherical light source for testing up to 230 deg FoV camera systems. For testing Lens Shading, Color Shading, AE, Blemishes, OTP, etc.
- Diameter 200mm or 500mm, opening aperture 90mm or 250mm.
- Visible adjustable color temperature range: 2300-6500K.
- Optional IR range: 850nm + 940nm.
- Optional camera holder.
The LB2 Spherical Lighting System is available in three models. An optional camera mount works with each model.
- LB2-S has a single color temperature. Light source options are 2800K/5000K/6500K/IR. 30-10,000 lux (Measured at center of sphere).
- LB2-D has adjustable color temperature from 2800K – 6500K (Standard). Adjust X1, X10, X100/Step.
- LB2-HDR has a single color temperature but illuminance 200 to 50,000 lux (10,000 levels).
>95%
up to 200° >95%
beyond 200° >90%
Color Temperatures & Illuminants
- 2300K~6500K
- Optional NIR 850nm + 940nm
- Multi (Dual) Channel:
- 3100K & 6500K
- NIR 850nm & NIR 940nm
- One Visible & One NIR
Intensity
10 to 5,000 lux
NIR = 2 to 20 W/m2
30 ~ 10,000 lux
NIR = 2 to 20 W/m2
Controls
Manual or USB Controls
Manual or USB Controls
Image/Quality Factors
Industries