US 12,405,487 B2
Optical system
Matthieu Guillot, Charenton-le-Pont (FR); Bruno Fermigier, Charenton-le-Pont (FR); Marius Peloux, Charenton-le-Pont (FR); and Gilles Le Saux, Charenton-le-Pont (FR)
Assigned to Essilor International, Charenton-le-Pont (FR)
Appl. No. 17/624,507
Filed by Essilor International, Charenton-le-Pont (FR)
PCT Filed Jul. 3, 2020, PCT No. PCT/EP2020/068783
§ 371(c)(1), (2) Date Jan. 3, 2022,
PCT Pub. No. WO2021/001524, PCT Pub. Date Jan. 7, 2021.
Claims priority of application No. 19305913 (EP), filed on Jul. 4, 2019.
Prior Publication US 2022/0357595 A1, Nov. 10, 2022
Int. Cl. G02C 7/08 (2006.01); G02C 7/02 (2006.01)
CPC G02C 7/086 (2013.01) [G02C 7/022 (2013.01); G02C 2202/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical system intended to be worn in front of an eye of a wearer comprising:
an optical lens having at least a control point; and
an optical device having a plurality of optical elements, the optical device being attached on a surface of the optical lens or encapsulated into the optical lens,
wherein each optical element simultaneously has two different optical functions including a first optical function and a second optical function,
wherein the first optical function of at least part of the optical element is to focus an image on a retina of the eye when the optical system is worn in standard wearing conditions, whatever an eye gaze direction,
wherein the second optical function of at least part of the optical elements is to not focus an image on the retina of the eye in said standard wearing conditions and instead to be focused either in front or behind the retina of the wearer in peripheral vision, and
wherein the optical device and the optical lens are configured so that an absolute value of a difference between a measured optical power at the control point of the optical system and a second optical power corresponding to a prescription for said eye of the wearer is smaller than or equal to 0.12 diopter.