Patent classifications
G02C7/022
Dog bone shaped cylindrical tunable fluidic lens with minimized defocus
The invention relates to cylindrical tunable fluidic lenses. The cylindrical optical power of the lenses may be continuously tuned within at least ±10 diopters, without inducing any significant spherical aberration, or any other significant aberrations. The lenses feature a geometry that produces minimal or no spherical defocus. These cylindrical tunable fluidic lenses could be used to induce and/or correct cylindrical optical aberrations in adaptive optical systems, particularly in ophthalmologic applications related to objective and automatic assessment of the refractive error of the eye, without the need of receiving feedback from the subjects.
EYEGLASS LENS
Provided is an eyeglass lens 1 configured to cause rays that have entered from an object-side surface 3 to be emitted from an eyeball-side surface 4, and cause the emitted rays to converge at a predetermined position A. The eyeglass lens 1 includes a lens substrate 2 having a plurality of substrate convex portions 6 on at least one of the object-side surface 3 and the eyeball-side surface 4, and a coating film covering the surface provided with the substrate convex portions 6. The shape of convex portions present on the outermost surface of the eyeglass lens located on a side on which the substrate convex portions 6 are provided is an approximate shape of the substrate convex portions configured to cause rays that have entered the eyeglass lens 1 to converge at a position B that is closer to the object than the predetermined position A is.
OPTICAL LENS
An optical lens to be worn in front of an eye of a wearer having at least one prescribed refractive power Px, the optical lens including two opposite optical faces and a plurality of contiguous optical elements at least part of the optical elements having an optical function of not focusing an image on the retina of the eye of the wearer so as to slow down the progression of the abnormal refraction of the eye. Over a pupil having at least a 4 mm diameter, one can measure in a plane corresponding to the at least one prescribed refractive power along at least one direction, a Modulation Transfer Function through the optical lens greater than 0.1 between 0 and 20 cyc/deg.
LENS ELEMENT
An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px, the optical lens comprising two opposite optical faces and a plurality of contiguous optical elements at least part of the optical elements having an optical function of not focusing an image on the retina of the eye of the wearer so as to slow down the progression of the abnormal refraction of the eye, wherein: —over a pupil having at least a 4 mm diameter, one can measure in a plane corresponding to the at least one prescribed refractive power along at least one direction, a Modulation Transfer Function through the optical lens greater than 0.1 between 0 and 20 cyc/deg; —a majority of the light rays passing through the optical lens over said pupil pass through at least one of the plurality of optical elements, and —each of the contiguous optical element verifies that Formula (I) with d a characteristic dimension of the contour of said optical element in mm, |P| the absolute value of a characteristic optical power of said optical element expressed in diopter, and K a number greater or equal to 0.9 and smaller than or equal to 1.7.
Myopia progression treatment
A ophthalmic lens for inhibiting progression of myopia includes a central zone and an annular zone. The annular zone includes subsurface optical elements formed via laser-induced changes in refractive index of a material forming the annular zone. The subsurface optical elements are configured to modify distribution of light to the peripheral retina of a user so as to inhibit progression of myopia.
Methods for the treatment of refractive error using active stimulation
Systems, devices, apparatuses and methods for an active projection system that may be incorporated into spectacles, contact lenses or provided as an add-on layer to existing spectacles or lenses. The active projection system operates to generate a stimulus or stimuli for viewing by a person's eye. The stimulus or stimuli creates an image that is defocused in front of the person's retina and can assist in slowing or stopping the progression of myopia or other refractive errors in the person.
Spectacle lens and method for producing same
A spectacle lens includes a first volume element group containing a plurality of first volume elements. The plurality of first volume elements is made from a material with a first Abbe number in the form of grid points of a geometric grid. Further, the spectacle lens includes a second volume group containing a plurality of second volume elements, which form a second partial grid in the form of grid points of a geometric grid, the second volume elements being made of a second material having a second Abbe number, wherein the first Abbe number and the second Abbe number differ from each other. The first partial grid and the second partial grid are arranged offset from each other. The disclosure also relates to a corresponding computer-implemented method for designing a spectacle lens of the type and to a method for producing the type of spectacle lens.
Ophthalmic lenses for treating myopia
Eyeglasses are disclosed that include eyeglass frames and a pair of ophthalmic lenses mounted in the frames. The lenses include a dot pattern distributed across each lens, the dot pattern including an array of dots spaced apart by a distance of 1 mm or less, each dot having a maximum dimension of 0.3 mm or less, the dot pattern including a clear aperture free of dots having a maximum dimension of more than 1 mm, the clear aperture being aligned with a viewing axis of a wearer of the pair of eyeglasses.
OPTICAL LENS HAVING AN ANTIREFLECTION COATING REFLECTING HARMFUL BLUE LIGHT
The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, at least one of the main faces comprising a multilayer antireflection coating having a stack of at least one high refractive index layer and at least one low refractive index layer, wherein the multilayer antireflection coating(s) present on the main face(s) provide(s) the optical lens with an average blue light reflection factor R.sub.m.sup.B1 within a wavelength range of from 420 nm to 450 nm, which is higher than or equal to 17%, for an angle of incidence ranging from 0° to 15°, and the multilayer antireflection coating provides said at least one main face with a mean light reflection factor R.sub.v between 380 nm and 780 nm lower than or equal to 0.5%, for an angle of incidence ranging from 0° to 15°.
SPECTACLE LENS
Provided is an eyeglass lens including: a first region formed such that light transmitted therethrough is focused at a predetermined position in an eye; and a plurality of second regions formed such that light transmitted therethrough is focused at a position defocused from the predetermined position, wherein the plurality of second regions are formed to have a size and an arrangement interval such that light perceived in peripheral vision is perceived as pseudo-focusing at a position other than the predetermined position.