Multifocal Hydrophilic Aspheric Intraocular Lens with Patented Pentafocal Fourier Harmonic Diffractive Technology

Multifocal Hydrophilic Aspheric Intraocular Lens
 
Technical Specification

 
Patented Fourier Harmonics Diffraction Design

• The waveform diffraction profile is optimized from 12 Fourier Harmonic components
• The waveform modulation creats a front-surface diffraction structure, achieving continuous and derivable smooth surface mathematically
• Optimizing the Fourier Harmonics amplitude, phase, and fundamental frequency, the light fleld forms constructive interference at five target focal points

Featuresalpointsal points
 

1. Patent technology: 12 Fourier harmonic, each level of harmonic naturally forms different additional power based on mathematical principles, and they interfere with each other optically. By optimizing the amplitude and phase of each level of harmonic, constructive interference is ultimately formed at the five focal points. 

2. Five focal points: far focal point, extended mid focal point, intermediate focal point, extended near focal, and near focal point. Add powers to the far focal point in sequence:+0.8D, +1.6D, +2.4D, +3.2D

3. 100% light energy utilization when the pupil aperture is less than 3.5mm

4. Meet the visual needs at all distances from near to far, achieving full range vision