Abstract: A visual sense examination device includes: a beam source that emits a visible beam and an invisible beam; a visible beam optical system that includes a first scanner scanning the visible beam; an invisible beam optical system that includes a second scanner scanning the invisible beam; a detector that detects the invisible beam reflected by a retina of a subject; a controller that performs a first control; a synthesizer that synthesizes the visible beam scanned by the first scanner and the invisible beam scanned by the second scanner; and wherein scanning angles of the visible beam by the first scanner and the invisible beam by the second scanner are substantially the same, and projectable ranges of the visible beam scanned by the first scanner and the invisible light scanned by the second scanner are substantially the same on the retina of the subject.

Abstract: The present invention provides a polymer composition comprising a polymer and an antioxidant comprising a diarylamine-based compound represented by General Formula (1): where, in General Formula (1), A1 and A2 each independently represent a C6 to C18 arylene group which may have a substituent, and A3 and A4 each independently represent an organic group having a cyclic imide structure which may have a substituent.

Abstract: An image projection device includes: a light source emitting a light beam; an image input unit inputting image data; a control unit generating an image light beam based on the input image data, and controlling emission of the image light beam from the light source; a scan unit scanning the image light beam emitted from the light source; and a projection optical member illuminating a retina of an eyeball of a user with the image light beam scanned by the scan unit, and projecting an image onto the retina, wherein a diameter of the image light beam at a time when the image light beam enters a cornea of the eyeball is not smaller than 310 ?m and not larger than 800 ?m, and a user having an original visual acuity in a range of 0.04 to 1.2 has an acquired visual acuity of 0.4 or higher.

Abstract: Provided is a vision test device including: a projection unit 10 that projects an image on a retina of a subject with use of a laser beam 50 by two-dimensionally scanning the laser beam; a beam diameter setting unit that sets a beam diameter of the laser beam; and a numerical aperture setting unit that sets a numerical aperture of the laser beam, wherein the projection unit projects, on the retina, a test image for measuring visual information of the subject with use of a laser beam having the set beam diameter and the set numerical aperture.

Abstract: The present invention provides a polymer composition comprising a polymer and an antioxidant comprising a diarylamine-based compound represented by General Formula (1): where, in General Formula (1), A1 and A2 each independently represent a C6 to C18 arylene group which may have a substituent, and A3 and A4 each independently represent an organic group having a cyclic imide structure which may have a substituent.

Abstract: The present invention provides a diarylamine-based compound represented by General Formula (1): (where A1 and A2 each independently represent a C6 to C18 arylene group which may have a substituent, and A3 and A4 each independently represent an organic group having a cyclic imide structure which may have a substituent).

Abstract: To provide an absorption promotor that is capable of improving the efficiency in absorption of a pharmaceutical drug and that is highly stable, an absorption promotor includes an oxa acid having a structure represented by the formula (1) below, where R1 represents a linear or branched hydrocarbon group having 1 to 40 carbon atoms, one or more but not all carbon atoms of which hydrocarbon group have optionally been substituted by an oxygen atom, a nitrogen atom, or a sulfur atom, the hydrocarbon group being saturated or unsaturated; m represents a real number of 0 to 50; n represents an integer of 1 to 5; and —C(?O)—X represents a functional group capable of chemical reaction.

Abstract: A visual field/visual acuity examination system includes a retinal projection head-mounted display; and a terminal device. The terminal device outputs examination image data to the retinal projection head-mounted display; displays an image on a display; and generates an examination image based on the examination image data and display the examination image on the display. The retinal projection head-mounted display inputs the examination image data from the terminal device; generates an image light beam based on the input examination image data and control emission of the image light beam from a light source; causes a scanning minor to scan the image light beam to generate an examination image light beam; and projects the examination image light beam as the examination image on a retina of an eyeball of a test subject after converging the examination image light beam in a vicinity of a pupil of the eyeball.

Abstract: A retinal scanning type eye examination device includes a storage unit configured to store test image data; a laser emitting unit including a laser light source configured to generate an imaging laser beam based on the test image data, the laser emitting unit being configured to project a test image onto a retina of an eyeball of a person subjected to an eye examination by using the imaging laser beam; an optical component configured to cause the imaging laser beam to converge at an inside of the eyeball of the person; a parameter acquiring unit configured to acquire parameter information for a retinal scanning type eyewear, the parameter information including angle information indicating a rotation angle of the laser emitting unit when the laser emitting unit is rotated around a converging point of the laser beam; and an output unit configured to output the parameter information to an external device.

Abstract: According to one embodiment, a first switch controls conduction between first and second nodes according to a potential on a first control node. A second switch controls conduction between the first control node and a first potential node according to a potential on a second control node. A first circuit includes first and second output nodes respectively coupled to the first and second control nodes, and outputs at the second output node a potential that brings the second switch out of conduction while outputting a first potential at the first output node. The first circuit has a high impedance at the first output node while outputting at the second output node a potential that brings the second switch into conduction.

Abstract: Provided is a vision test device including: a projection unit 10 that projects an image on a retina of a subject with use of a laser beam 50 by two-dimensionally scanning the laser beam; a beam diameter setting unit that sets a beam diameter of the laser beam; and a numerical aperture setting unit that sets a numerical aperture of the laser beam, wherein the projection unit projects, on the retina, a test image for measuring visual information of the subject with use of a laser beam having the set beam diameter and the set numerical aperture.

Abstract: An image projection device includes: a projection unit that projects an image light beam forming an image onto a pupil of an eyeball of a user to project the image onto a retina of the eyeball; a detection unit that detects a direction in which the pupil has moved relative to a face of the user and a speed of movement of the pupil; and a control unit that performs different controls of the image when the pupil has moved at different speeds in a same direction.

Abstract: A visual sense examination device includes: a beam source that emits a visible beam and an invisible beam; a visible beam optical system that includes a first scanner scanning the visible beam; an invisible beam optical system that includes a second scanner scanning the invisible beam; a detector that detects the invisible beam reflected by a retina of a subject; a controller that performs a first control; a synthesizer that synthesizes the visible beam scanned by the first scanner and the invisible beam scanned by the second scanner; and wherein scanning angles of the visible beam by the first scanner and the invisible beam by the second scanner are substantially the same, and projectable ranges of the visible beam scanned by the first scanner and the invisible light scanned by the second scanner are substantially the same on the retina of the subject.

Abstract: According to one embodiment, a first switch controls conduction between first and second nodes according to a potential on a first control node. A second switch controls conduction between the first control node and a first potential node according to a potential on a second control node. A first circuit includes first and second output nodes respectively coupled to the first and second control nodes, and outputs at the second output node a potential that brings the second switch out of conduction while outputting a first potential at the first output node. The first circuit has a high impedance at the first output node while outputting at the second output node a potential that brings the second switch into conduction.

Abstract: An image projection device includes: a first mirror oscillating to scan an image light beam forming an image projected onto a retina of a user; a light source emitting the image light beam and a detection light beam to the first mirror at different timings; a second mirror having a first region reflecting the image light beam reflected by the first mirror to the retina and a second region reflecting the detection light beam reflected by the first mirror in a direction different from a direction in which the image light beam is reflected, and scanning neither the image light beam nor the detection light beam reflected by the first mirror; a detector detecting the detection light beam reflected by the second region; and a controller adjusting oscillation of the first mirror and an emission timing of the image light beam based on a detection result by the detector.

Abstract: An image projection device includes: a projection unit that irradiates a pupil 40 of an eyeball 36 of a user with an image light beam 34a forming an image to project the image onto a retina 38 of the eyeball; a detection unit that detects a direction 52 in which the pupil has moved relative to a face of the user; and a control unit that controls the projection unit based on a detected direction in which the pupil has moved so that the pupil is irradiated with the image light beam and the image is moved in a direction opposite to the direction in which the pupil has moved with respect to a position on which the image has been projected before a move of the pupil in a coordinate system visually recognized by the user.

Abstract: The present invention is an image projection device that includes: a light source 12 that emits a laser beam 34; a scanning mirror 14 that two-dimensionally scans the laser beam 34 emitted from the light source 12; and a projection mirror 24 that projects scanned light onto a retina 26 of an eyeball 22 of a user to project an image onto the retina 26, the scanned light being composed of the laser beam 34 that has been scanned by the scanning mirror 14, wherein the laser beam 34 emitted from the light source 12 is scanned by using a part of an operating range of the scanning mirror 14.

Abstract: A retinal scanning type eye examination device includes a storage unit configured to store test image data; a laser emitting unit including a laser light source configured to generate an imaging laser beam based on the test image data, the laser emitting unit being configured to project a test image onto a retina of an eyeball of a person subjected to an eye examination by using the imaging laser beam; an optical component configured to cause the imaging laser beam to converge at an inside of the eyeball of the person; a parameter acquiring unit configured to acquire parameter information for a retinal scanning type eyewear, the parameter information including angle information indicating a rotation angle of the laser emitting unit when the laser emitting unit is rotated around a converging point of the laser beam; and an output unit configured to output the parameter information to an external device.

Abstract: The present display device is a retinal scan display device including: a projection optical system configured to project an image to a retina of an eye; a distortion correcting unit configured to correct a distortion of the image; an image inverting unit configured to invert the image; and a storage unit configured to store correction data for correcting the distortion of the image when the image is projected to a left eye and correction data for correcting the distortion of the image when the image is projected to a right eye, wherein, based on a switching signal that represents that a side at which the projection optical system is arranged has been switched from one eye side to the other eye side, the distortion correcting unit performs distortion correction, by switching from correction data corresponding to one eye to correction data corresponding to the other eye, and the image inverting unit performs image inversion.

Abstract: The present invention provides a diarylamine-based compound represented by General Formula (1): (where A1 and A2 each independently represent a C6 to C18 arylene group which may have a substituent, and A3 and A4 each independently represent an organic group having a cyclic imide structure which may have a substituent).