Abstract: The present invention relates to an apparatus for inspecting the ocular fundus that comprises: —an illuminator (1) adapted to provide an illuminating light beam (IL) to illuminate a portion of said biological tissue, said illuminating beam being shaped so that at least a portion of said illuminating beam has a line-shaped section; —one or more lenses (2, 4, 7) to focus said illuminating beam (IL) on said biological tissue, during operation of said apparatus said illuminating beam illuminating a line-shaped region (5B) of said biological tissue; —a scanning assembly (3) adapted to perform optical scans of said biological tissue by cyclically moving the illuminating beam (IL) projected by said illuminator on said biological tissue, along a scanning direction (DS) substantially perpendicular to a main extension direction (AE) of the region (5B) of biological tissue illuminated by said illuminating beam; —acquisition means (6) adapted to receive reflected light (R) from said biological tissue to acquire images of

Abstract: Eye fundus inspection apparatus (500) comprising: —illumination means (12) comprising at least a light source (121, 123, 124, 126) and adapted to project a first light beam (1) towards a retina (101) of an eye (100); —an optical lighting path (1A) for said first light beam; —acquisition means (27) adapted to receive a second light beam (2) coming from the retina; —an optical acquisition path (2A) for said second light beam; —scanning means (17) adapted to scan said first light beam (1) on the retina with a linear movement, according to a first scanning direction (S1), or with a circular movement about a rotation axis (A), according to a second scanning direction (S2); —light beam separating means (16) adapted to define separate passage zones for said first and second light beams (1, 2) at a pupil of the eye; —a control unit (120) adapted to control operation of said inspection apparatus; —first light beam shaping means (11) and second light beam shaping means (23, 271, 272) that allow obtaining improved retin

Abstract: An ophthalmic machine is provided for obtaining and diagnosing fluorescence images of the retina. An excitation light having first wavelengths (e.g., between 430 nm and 490 nm) is scanned onto the retina. Light emitted by the retina, when illuminated thereby, is filtered to block light of the first wavelengths and to pass light of second (higher) wavelengths. A second filter selects a component of the passed light having second (e.g., green) wavelengths, and a third filter selects a component of the passed light having third (e.g., red) wavelengths. First and second detection means receive light transmitted by the first and second filters, respectively, and provide detection signals indicative thereof. The detection signals are processed to provide one or more images of the retina, said images of the retina comprising at least a color fluorescence image of the retina.

Abstract: Eye fundus inspection apparatus (500) comprising: —illumination means (12) comprising at least a light source (121, 123, 124, 126) and adapted to project a first light beam (1) towards a retina (101) of an eye (100); —an optical lighting path (1A) for said first light beam; —acquisition means (27) adapted to receive a second light beam (2) coming from the retina; —an optical acquisition path (2A) for said second light beam; —scanning means (17) adapted to scan said first light beam (1) on the retina with a linear movement, according to a first scanning direction (S1), or with a circular movement about a rotation axis (A), according to a second scanning direction (S2); —light beam separating means (16) adapted to define separate passage zones for said first and second light beams (1, 2) at a pupil of the eye; —a control unit (120) adapted to control operation of said inspection apparatus; —first light beam shaping means (11) and second light beam shaping means (23, 271, 272) that allow obtaining improved retin

Abstract: An ophthalmic machine is provided for obtaining and diagnosing fluorescence images of the retina. An excitation light having first wavelengths (e.g., between 430 nm and 490 nm) is scanned onto the retina. Light emitted by the retina, when illuminated thereby, is filtered to block light of the first wavelengths and to pass light of second (higher) wavelengths. A second filter selects a component of the passed light having second (e.g., green) wavelengths, and a third filter selects a component of the passed light having third (e.g., red) wavelengths. First and second detection means receive light transmitted by the first and second filters, respectively, and provide detection signals indicative thereof. The detection signals are processed to provide one or more images of the retina, said images of the retina comprising at least a color fluorescence image of the retina.

Abstract: The present invention relates to an eye examination apparatus comprising an illuminator adapted to project a light beam to illuminate the retina of an eye; an image sensor adapted to receive light reflected by the retina and to acquire images of the retina; scanning means adapted to perform optical scans of the retina moving the light beam projected on the retina along a scanning direction; separation means of the light beams adapted to separate the projected light from the light reflected by the retina and directed toward said image sensor; and a control unit to control the operation of said scanning apparatus. During the operation of said apparatus, in order to acquire each single image of a region of the retina to be framed, said image sensor integrates light reflected by the retina during at least two complete optical scans of said region of the retina by said scanning means.

Abstract: An eye examination apparatus comprises an illuminator adapted to project a light beam on an optical illumination path along a first optical axis to illuminate the retina of an eye, said illuminator comprising a light source and a projection diaphragm adapted to shape the light beam, during the operation of said examination apparatus said projection diaphragm being optically conjugated with the retina. Acquisition means receive light reflected by the retina and acquire images of the retina. Scanning means move the light beam projected on the surface of the retina along a scanning direction. Separation means of the beams separate the light projected by said illuminator from the light reflected by the retina. The projection diaphragm comprises a projection opening having an elongated shape and variable width, said projection opening comprising a portion having a width larger than the width of said projection opening at the first optical axis.

Abstract: A scanning perimeter as disclosed herein comprises a first projection means projecting a first projection beam to uniformly illuminate a portion of a retina, said first projection beam passing through the pupil of the eye at a second separation region between a first crossing region, at which said illumination beam passes through the pupil, and a second crossing region of the pupil, at which light reflected by the retina passes through the pupil. A second projection means projects a second projection beam to project at least a fixation target on the retina, said second projection beam passing through the pupil at said first crossing region or said second crossing region. A third projection means projects a third projection beam to project at least a light stimulus on the retina, said third projection beam passing through the pupil at said first crossing region or said second crossing region.

Abstract: The present invention relates to an eye examination apparatus comprising an illuminator adapted to project a light beam to illuminate the retina of an eye; an image sensor adapted to receive light reflected by the retina and to acquire images of the retina; scanning means adapted to perform optical scans of the retina moving the light beam projected on the retina along a scanning direction; separation means of the light beams adapted to separate the projected light from the light reflected by the retina and directed toward said image sensor; and a control unit to control the operation of said scanning apparatus. During the operation of said apparatus, in order to acquire each single image of a region of the retina to be framed, said image sensor integrates light reflected by the retina during at least two complete optical scans of said region of the retina by said scanning means.

Abstract: A scanning perimeter as disclosed herein comprises a first projection means projecting a first projection beam to uniformly illuminate a portion of a retina, said first projection beam passing through the pupil of the eye at a second separation region between a first crossing region, at which said illumination beam passes through the pupil, and a second crossing region of the pupil, at which light reflected by the retina passes through the pupil. A second projection means projects a second projection beam to project at least a fixation target on the retina, said second projection beam passing through the pupil at said first crossing region or said second crossing region. A third projection means projects a third projection beam to project at least a light stimulus on the retina, said third projection beam passing through the pupil at said first crossing region or said second crossing region.

Abstract: An eye examination apparatus comprises an illuminator adapted to project a light beam on an optical illumination path along a first optical axis to illuminate the retina of an eye, said illuminator comprising a light source and a projection diaphragm adapted to shape the light beam, during the operation of said examination apparatus said projection diaphragm being optically conjugated with the retina. Acquisition means receive light reflected by the retina and acquire images of the retina. Scanning means move the light beam projected on the surface of the retina along a scanning direction. Separation means of the beams separate the light projected by said illuminator from the light reflected by the retina. The projection diaphragm comprises a projection opening having an elongated shape and variable width, said projection opening comprising a portion having a width larger than the width of said projection opening at the first optical axis.

Abstract: The present invention relates to an apparatus for inspecting the fundus of the eye, comprising: —lighting means configured to project a light beam for illuminating the retina of one eye; and —an optical path comprising one or more lenses configured to optically conjugate the retina with a receiving surface of acquisition means configured to acquire one or more images of the retina; and —a beam splitter device configured to divert a part of the light, which is reflected by the retina and directed towards said acquisition means, towards first photosensitive elements; and —a control unit operatively associated with said first photosensitive elements, said acquisition means and said lighting means, said control unit deactivating said lighting means when the light energy received from said first photosensitive elements overcomes a predefined threshold value; and —first LED devices configured to project light targets onto the retina, which the patient must stare to keep the eye still during the examination.

Abstract: The present invention refers to a fundus camera comprising: illuminating means that project a first light beam to illuminate the retina of a patient's eye, said illuminating means comprising one or more first light sources operatively associated with a shaped structure provided with a through hole; projecting means that project one or more second light beams on the patient's retina, said projecting means comprising one or more second light sources; sensor means for receiving the light reflected by the retina in line with a receiving surface in order to acquire one or more images of the retina; regulating means for adjusting the focus of the images of the retina, in line with the receiving surface of said sensor means; actuating means designed to move said regulating means and projecting means; processing means for analyzing the images of the retina acquired by said sensor means, and for generating control signals for said actuating means.

Abstract: The present invention relates to a lighting device comprising a light concentrator device operatively associated with a light source comprising a plurality of LED devices.

Abstract: The present invention relates to an apparatus for inspecting the fundus of the eye, comprising:—lighting means configured to project a light beam for illuminating the retina of one eye; and—an optical path comprising one or more lenses configured to optically conjugate the retina with a receiving surface of acquisition means configured to acquire one or more images of the retina; and—a beam splitter device configured to divert a part of the light, which is reflected by the retina and directed towards said acquisition means, towards first photosensitive elements; and—a control unit operatively associated with said first photosensitive elements, said acquisition means and said lighting means, said control unit deactivating said lighting means when the light energy received from said first photosensitive elements overcomes a predefined threshold value; and—first LED devices configured to project light targets onto the retina, which the patient must stare to keep the eye still during the examination.

Abstract: The present invention refers to a fundus camera comprising: illuminating means that project a first light beam to illuminate the retina of a patient's eye, said illuminating means comprising one or more first light sources operatively associated with a shaped structure provided with a through hole; projecting means that project one or more second light beams on the patient's retina, said projecting means comprising one or more second light sources; sensor means for receiving the light reflected by the retina in line with a receiving surface in order to acquire one or more images of the retina; regulating means for adjusting the focus of the images of the retina, in line with the receiving surface of said sensor means; actuating means designed to move said regulating means and projecting means; processing means for analysing the images of the retina acquired by said sensor means, and for generating control signals for said actuating means.

Abstract: The present invention relates to a lighting device comprising a light concentrator device operatively associated with a light source comprising a plurality of LED devices.

Abstract: An injector of gaseous fuels for internal combustion engines includes a valve body into which the fuel is admitted by an inlet aperture and from which it is discharged by an outlet aperture, and a seating associated with a respective shutter. The shutter includes a diaphragm and a moving armature of an electromagnet held in a centred position by the diaphragm. The electromagnet is capable of causing, in a controlled manner, movement of the shutter relative to the seating from and to a position of shutting off the seating to allow or shut off the flow of fuel through the seating. The seating has a cross-section for passage of the fuel having the form of at least one slot extending along a first direction of development predominant with respect to a second direction of transverse development of the cross-section and the cross-section has a perimeter sealing edge with a cross-section of substantially rounded shape capable of providing sealing contact against a surface of the shutter facing it.