eyeglasses lenses

详情

1.    Based on corneal topography, free-focusing lens designs corresponding parameters of lens. There are more than ***0 levels of progressive aperture in the same axis as well as focusing function of pixel standard.
 2.    Free-focusing lens adopts the principle of adaptive optics. It adjusts the incident light to the best angle into the pupil according to the corresponding corneal parameters. So the images with little distortion will be formed on the retina clearly and accurately.
 3.  The lens can achieve the effects of sharp-focusing and high definition by using principle of spatial wavefront optics and ultra-precise processing technology.
 4.    Free-focusing of full-field on the basis of countless coordinates.
 5.    Smooth transition of visual distance, seeing through appropriate
     corrective rays without distortion.
The Technical Principle of Handea Lens

Based on the principle of spatial fluctuation and design of wavefront, 

handea sharp-sight bionic lens has revised the bending incident beam 

going through the lens according to related precise cubic phase 

parameters, which is consistent with the corneal parameters of 

glasses wearers, thus prevents irregular beam from entering the pupil,

and promotes the process of re-imaging. The creation of this 

patented technology has got to the root of the problem of the 

incompatible between paraxial rays and eye's beam path which makes 

it possible for people to get the images without distortion. In addition 

to detecting eye’s state of high order aberration when pupil turns to 

the center area, technology of adaptive optics can find out the 

regulation based on eyeball’s movement and calculate the 

impending change in aberration when the eyeball moves to a certain 

direction (optical path-tracing technique). 

Optical path-tracing technique of adaptive optics need to look for and 

set a lot of coordinates on eyes movement track for there are many 

movement trajectories on eyes. Then corresponding wavefront aberration 

data calculated by Gaussian function will be separately embedded into the 

coordinates. And compared with the data of aberration when eyeball 

turns to its’ right ahead, these wavefront aberration data have been 

changed to coordinates with new wavefront aberration data. The 

process has the same effect with excimer laser surgery in that they both 

embed the wavefront aberration data in lens  which has countless different 

coordinates.