Abstract: The present disclosure relates to an electroactive for use in eyewear, the electroactive unit comprising: an electroactive element, the electroactive element comprising a first and a second optically transparent substrate, between which at least one liquid crystal layer comprising nematic liquid crystals; and a Fresnel-lens structure are arranged, wherein a first and a second transparent electrode are formed on the first and second substrates respectively, and wherein an alignment layer is present on the first substrate and in contact with the liquid crystal layer and is configured to align the nematic liquid crystals in a first direction, and a polarization element configured for adjusting light having a polarization in a second direction perpendicular to the first direction, wherein the liquid crystals of the liquid crystal layer are in the Mauguin regime.

Abstract: An optical device (1), comprising: —a first optical transparent thermoplastic layer (2); —a second optical transparent thermoplastic layer (3), and; in between both thermoplastic layers (2, 3); • a diffractive optical element (4) adjacent to the first thermoplastic layer (2), • a spacer (5) in between the diffractive optical element (4) and the second thermoplastic layer (3), and; • a border (6) enclosing the diffractive optical element (4) thereby forming a sealed cavity (7); wherein at least an upper part of the border (6), adjacent to the cavity (7) is formed from an adhesive (15).

Abstract: An optical device (3) comprising a light transmitting electrode layer (2) provided onto a light transmitting carrier (15), wherein a conductive layer (6) is provided on the first electrode layer (2), the conductive layer establishing a connecting area (4), the conductive layer having a thickness being significantly larger than the thickness of the electrode layer (2), and wherein the electrode layer (2) and carrier (15) show a perforation in the connecting area, the perforation being at least partially filled with a conductive material (7) which is further connected to a conductive element (1) thereby establishing an electrical connection between the electrode layer (2) and the conductive element (1) via the conductive layer (6) and the conductive material.

Abstract: An optical device, comprising: —a first electrode layer; —a second electrode layer provided at a distance from the first electrode layer; —the first and second electrode layer being light transmitting; wherein the optical device further comprises, in between the first and the second electrode layers: o a diffractive optical element adjacent to the first electrode layer and comprising at least one sloped surface; and o a liquid crystalline material filling a space between the sloped surface and the second electrode layer; the liquid crystalline material having a pretilt that compensates for a slope angle of the at least one sloped surface.

Abstract: Example embodiments relate to methods of integrating an electronic device into an eyeglass frame, and electronic glasses. One example set of electronic glasses is configured to be provided with at least one electro-optical component formed by an electro-active lens. The electronic glasses include an eyeglass frame that includes a first temple and a second temple, which include a first front temple part and a second front temple part, respectively. The electronic glasses also include a front part. The front part includes a left eyepiece for a left electro-active lens, a right eyepiece for a right electro-active lens, a bridge connecting the left and right eyepieces, and a groove. In addition, the electronic glasses include an electronic device. The electronic glasses further include a flexible cable arranged in the groove. Additionally, the electronic glasses include closure measures that include a sealing element.

Abstract: The present disclosure relates to an electroactive lens a method of producing the same and a pair of glasses comprising at least one electroactive lens, the electroactive lens forming a stack of at least three elements, wherein: a first transparent body is a first lens element having a first optical axis, a second transparent body is a second lens element having a second optical axis; at least one lens foil sandwiched between the first transparent body and the second transparent body comprises a first transparent electrode, a second transparent electrode, and a Fresnel lens and liquid crystalline material therebetween to defining an optical device, wherein the first and second transparent electrodes are electrically coupled to terminals and are configured to receive a voltage for operating the switchable lens, wherein the first and second conductive plug are positioned relative to the optical axis of the Fresnel lens such that radial lines extending from the optical axis of the Fresnel lens to the first and s

Abstract: The present disclosure describes optical devices and methods for manufacturing such optical devices. Namely, an example optical device includes a first optical transparent thermoplastic layer, a second optical transparent thermoplastic layer, and in between both thermoplastic layers, a diffractive optical element adjacent to one thermoplastic layer, a spacer in between the diffractive optical element and the other thermoplastic layer and, a border enclosing the diffractive element thereby forming a sealed cavity.

Abstract: An optical device (1), comprising: —a first optical transparent thermoplastic layer (2); —a second optical transparent thermoplastic layer (3), and; in between both thermoplastic layers (2, 3); • a diffractive optical element (4) adjacent to the first thermoplastic layer (2), • a spacer (5) in between the diffractive optical element (4) and the second thermoplastic layer (3), and; • a border (6) enclosing the diffractive optical element (4) thereby forming a sealed cavity (7); wherein at least an upper part of the border (6), adjacent to the cavity (7) is formed from an adhesive (15).

Abstract: An optical device (3) comprising a light transmitting electrode layer (2) provided onto a light transmitting carrier (15), wherein a conductive layer (6) is provided on the first electrode layer (2), the conductive layer establishing a connecting area (4), the conductive layer having a thickness being significantly larger than the thickness of the electrode layer (2), and wherein the electrode layer (2) and carrier (15) show a perforation in the connecting area, the perforation being at least partially filled with a conductive material (7) which is further connected to a conductive element (1) thereby establishing an electrical connection between the electrode layer (2) and the conductive element (1) via the conductive layer (6) and the conductive material.

Abstract: An optical device, comprising: a first electrode layer; a second electrode layer provided at a distance from the first electrode layer; the first and second electrode layer being light transmitting; wherein the optical device further comprises, in between the first and the second electrode layers: o a diffractive optical element adjacent to the first electrode layer and comprising at least one sloped surface; and o a liquid crystalline material filling a space between the sloped surface and the second electrode layer; the liquid crystalline material having a pretilt that compensates for a slope angle of the at least one sloped surface.

Abstract: The present disclosure describes optical devices and methods for manufacturing such optical devices. Namely, an example optical device includes a first optical transparent thermoplastic layer, a second optical transparent thermoplastic layer, and in between both thermoplastic layers, a diffractive optical element adjacent to one thermoplastic layer, a spacer in between the diffractive optical element and the other thermoplastic layer and, a border enclosing the diffractive element thereby forming a sealed cavity.

Abstract: An optical lens device has an actively controllable focal length. This device comprises an element with lensing effect comprising a plurality of regions. Each such region has a corresponding refractive power for providing a corresponding focal length distinct from the focal length of at least one other region of this plurality of regions. The device further comprises at least one non-centric addressable optical element integrated in or provided on the element with lensing effect. This at least one addressable optical element is adapted for changing the transmittance of at least one of the plurality of regions in response to a control signal. The device also comprises a control means for generating the control signal.

Abstract: An optical lens device has an actively controllable focal length. This device comprises an element with lensing effect comprising a plurality of regions. Each such region has a corresponding refractive power for providing a corresponding focal length distinct from the focal length of at least one other region of this plurality of regions. The device further comprises at least one non-centric addressable optical element integrated in or provided on the element with lensing effect. This at least one addressable optical element is adapted for changing the transmittance of at least one of the plurality of regions in response to a control signal. The device also comprises a control means for generating the control signal.