Abstract: Adaptive optical device provided with a deformable lens including a membrane which is extended between a first end and an opposite second end and is provided with an internal face placed on an optical layer. In addition, the deformable lens includes actuators arranged for varying the curvature of the membrane with respect to the optical axis of the lens. The actuator comprises a first movement member and a second movement member movable parallel to the optical axis and connected, respectively, to the first end and to the second end of the membrane, and a drive member operatively connected to the first and to the second movement member and arranged to move them by moving the first end and the second end of the first membrane parallel to the optical axis, in order to place the first membrane in a curved configuration.

Abstract: In one embodiment, a sensorless adaptive optics imaging system includes a source of light, an optical delivery unit having a wavefront modifying element, and an optical coherence tomography (OCT) sensor configured to acquire OCT images based on light emitted by the source of light and transmitted through the optical delivery unit. The system also includes a processing unit that can: process the OCT images, and determine an adjustment of parameters of the wavefront modifying element. In some embodiments, the system includes a multi-photon microscopy (MPM) sensor that acquires MPM images based on the light transmitted through the optical delivery unit.

Abstract: A deformable lens structure includes: a deformable first layer having a first outer surface adapted to receive an incident light beam, and a first inner surface opposite the first outer surface; at least a first central portion of the first layer being transparent to the light beam; a second layer having a second inner surface facing the first inner surface and a second outer surface opposite the second inner surface, at least a second central portion of the second layer being transparent to the light beam; a shaped spacer element positioned between the first inner surface and the second inner surface, and an inner chamber containing a liquid transparent to the light beam; first and second electrostatic actuators operatively associated with the first layer and second layers and positioned at the first central portion of the first layer and at the second central portion of the second layer, respectively.

Abstract: In one embodiment, a sensorless adaptive optics imaging system includes a source of light, an optical delivery unit having a wavefront modifying element, and an optical coherence tomography (OCT) sensor configured to acquire OCT images based on light emitted by the source of light and transmitted through the optical delivery unit. The system also includes a processing unit that can: process the OCT images, and determine an adjustment of parameters of the wavefront modifying element. In some embodiments, the system includes a multi-photon microscopy (MPM) sensor that acquires MPM images based on the light transmitted through the optical delivery unit.

Abstract: A deformable lens structure includes: a deformable first layer having a first outer surface adapted to receive an incident light beam, and a first inner surface opposite the first outer surface; at least a first central portion of the first layer being transparent to the light beam; a second layer having a second inner surface facing the first inner surface and a second outer surface opposite the second inner surface, at least a second central portion of the second layer being transparent to the light beam; a shaped spacer element positioned between the first inner surface and the second inner surface, and an inner chamber containing a liquid transparent to the light beam; first and second electrostatic actuators operatively associated with the first layer and second layers and positioned at the first central portion of the first layer and at the second central portion of the second layer, respectively.

Abstract: The present invention refers to a deformable lens structure for adaptive optics devices.

Abstract: The present invention relates to a lighting device (1) that comprises a first light source (2) comprising one or more LED devices (21). At least a deformable reflective element (3) is optically coupled to said first light source, so as to receive light from said first light source, said reflective structure comprising at least a first portion (31) having a reflective surface (310) that reflects at least partially the light (L1) received from said first light source, and a second portion (32) that is solidly coupled to said first portion. Driving means (4) are operatively coupled to said second portion (32), which induce a deformation of said second portion that in turn causes a deformation of the reflective surface (310) of said first portion. The position of the focus point (F) of the light (L2) reflected by said reflective surface can thus be varied in a controlled manner.

Abstract: An optically controlled deformable reflective/refractive assembly includes a deformable membrane structure (10) having a reflecting/refractive, electrically conductive surface (10?), which is associated with a rigid photoconductive substrate (14) having an electrically conductive layer (14?) on one side. An electric biasing arrangement applies a potential difference (V0) across the membrane structure (10). A controlling light source (20) illuminates the photoconductive substrate (14) in correspondence of an active region, wherein the light source is arranged for selectively illuminating the substrate (14) by emitting at least an optical beam (B) adapted to generate in an area of the substrate (14) a local electrical charge density proportional to the spatial light intensity of the beam (B) and responsible for a local deformation of the membrane structure (10).

Abstract: A semiconductor laser apparatus combined with a chromophore and a method for using them in treating hard tissues, such as for example dental tissue, in which elements (3) for applying a chromophore in the area of the tissue to be treated are coupled to a semiconductor laser (4), elements for conveying (5, 6) the laser light and for focusing (7) the laser light on the tissue to be treated also being coupled to the laser; the chromophores can be chosen among different chromophorous agents and must have a high coefficient of absorption at the wavelength of the laser chosen for the type of treatment and/or tissue to be treated.