Abstract: An electronic pen is provided with a light source that emits irradiation light, a rotatable rotating body, a deflecting member that deflects, toward the rotating body, the irradiation light emitted by the light source and transmits the irradiation light reflected by the rotating body, and a detecting member that receives the irradiation light transmitted through the deflecting member.

Abstract: A virtual image display apparatus includes a first display device for a right eye, a second display device for a left eye, and an adjustment device configured to adjust display positions, and the first display device and the second display device are configured to guide imaging light in a second direction intersecting a first direction in which the first display device and the second display device are aligned, and display the first image and the second image and the adjustment device makes an adjustment to provide an overlapping area in which the first image and the second image are visually recognized in the overlapping area and an independent area in which the first image and the second image are visually recognized independently.

Abstract: A projector includes a self-luminous display element configured to emit image light that is multicolored and has a predetermined wavelength band for each color of light, a first diffraction element configured to diffract the image light from the display element, and a second diffraction element configured to emit the image light while making angular compensation, by diffracting the image light, for angular separation of the image light occurring depending on the wavelength band of each color of light when diffracted by the first diffraction element.

Abstract: A display module includes an image light generation device, a light-guiding member, a first reflection surface configured to reflect the imaging light incident via the light-guiding member, a first diffraction element configured to diffract the imaging light, and a second diffraction element configured to diffract the image light and form an exit pupil. The image light is sequentially incident on a first deflection surface, a second deflection surface, a second reflection surface, a third reflection surface, a fourth reflection surface, and a third deflection surface inside the light-guiding member, and a distance from a reference position where an optical axis of the exit pupil and an emission surface intersect to the second deflection surface is longer than a distance from the reference position to the first deflection surface and longer than a distance from the reference position to the second reflection surface.

Abstract: A secondary battery protection apparatus includes a temperature sensitive element having a characteristic value that varies in accordance with a change in temperature of a secondary battery. The secondary battery protection apparatus includes a switching circuit provided in a charge-and-discharge path between a secondary battery and an external device. The secondary battery protection apparatus includes a secondary battery protection circuit configured to control charge and discharge using the switching circuit to protect the secondary battery from temperature. The secondary battery protection circuit includes a comparison circuit configured to compare a voltage against a threshold voltage, the voltage corresponding to the change in the temperature of the secondary battery. The secondary battery protection circuit includes a conversion circuit that is controlled such that a first input of the comparison circuit is electrically coupled to a first terminal of the secondary battery protection circuit.

Abstract: A virtual image display device includes an image light generation device, a projection optical system configured to project image light emitted from the image light generation device, a folding mirror configured to reflect the image light from the projection optical system, a semi-transmissive mirror configured to reflect part of the image light from the folding mirror, and a concave surface mirror configured to reflect, the image light reflected by the semi-transmissive mirror to form an exit pupil, wherein an optical axis of the projection optical system is arranged in a direction intersecting a reference plane including an optical axis extending from the folding mirror to the semi-transmissive mirror and an optical axis extending from the concave surface mirror to the exit pupil, and a display region of the image light generation device is arranged inclined in accordance with inclinations of the folding mirror and the semi-transmissive mirror that are arranged.

Abstract: A light-guiding device includes a pair of light-guiding portions, a pair of light-incident portions that causes image light to be incident on the pair of light-guiding portions respectively, and a pair of light-emitting portions that emit image light, guided by the pair of light-guiding portions, to outside respectively, in which a pair of optical members including the pair of light-guiding portions are coupled by a central member having light transmissivity, and separate overcoat layers are provided at the optical member on one side and at the optical member on another side with respect to an approximate center of the central member.

Abstract: A secondary battery protection circuit for protecting a secondary battery, including: a low-voltage detecting circuit configured to detect a voltage across the secondary battery that is lower than a second voltage for low voltage detection, the second voltage being set to be lower than a first voltage for overdischarge detection; and a switching circuit configured to cause a gate of a charge control NMOS transistor to be fixed at a potential at a high side power supply terminal, upon detecting, by the low-voltage detecting circuit, that the voltage across the secondary battery is lower than the second voltage for low voltage detection.

Abstract: Provided is a virtual image display apparatus including a display device configured to emit an imaging light; a first mirror configured to reflect the imaging light from the display device; a refractive reflective optical member including a mirror portion configured to reflect the imaging light reflected by the first mirror; and a second mirror configured to reflect the imaging light reflected by the mirror portion toward a position of an exit pupil, wherein a distance from the display device to the first mirror is shorter than a distance from the position of the exit pupil to the second mirror; and a first angle ? formed by the imaging light incident on the second mirror and the imaging light reflected by the second mirror is greater than 0° and 45° or less.

Abstract: A head-mounted display includes an image display device including a panel unit serving as a display element configured to display an image, a colored optical member disposed on a light path of imaging light emitted from the panel unit and having a yellowness of a predetermined value or greater, and a coloring correction optical member configured to correct a degree of coloring of the imaging light of the entire light path in accordance with the yellowness of the colored optical member.

Abstract: A projection device according to the present disclosure includes a light emission display panel in which a plurality of pixels including a light emission element are arranged in a matrix shape, a scanning mirror configured to reflect, toward a scanned surface, imaging light emitted from the light emission display panel and performs two-dimensional scanning of the reflected imaging light on the scanned surface, and a projection optical system configured to guide the imaging light from the light emission display panel to the scanning mirror.

Abstract: An information processing device functions as a slave device connected to a master device via a communication network including a daisy chain connection. The information processing device includes: a communication part which performs communication processing using the communication network; a storage control part which performs control to store in a storage part communication state information indicating a communication state in the communication network detected in the communication part; a determination part which, with reference to the communication state information stored in the storage part, determines whether a communication load of a predetermined value or more is present in the communication network; and an output control part which, if the determination part determines that the communication load is present, performs control to output a result of the determination.

Abstract: The image display device includes an image generating unit that emits first image light, a pupil expanding element that expands a diameter of a light flux included in the first image light from the image generating unit to obtain second image light, a first light condensing optical system that condenses the second image light and forms an intermediate image, and a second light condensing optical system that condenses light from the intermediate image and generates a virtual image on eye of a viewer, in a plane including at least the image generating unit, the pupil expanding element, and the eye of the viewer, a maximum emission angle of the first image light is smaller than a maximum viewing angle of the virtual image, and the diameter of the light flux included in the second image light is greater than that of a light flux included in the virtual image.

Abstract: The invention provides a cable abnormality assessment system, a slave device, and a cable abnormality assessment method. A cable abnormality assessment system is provided with a diagnosis control unit for assessing a cable abnormality on the basis of link-up information between a communication unit and another machine connected to the other end of a cable, and first and second information that are the respective results of abnormality diagnosis by a signal line diagnosis unit with regard to one and the other of two pair signal lines of the cable.

Abstract: A vehicle theft deterrent apparatus includes a driver verifier, a steering torque detector, an actuator, and a steering controller. The steering torque detector is configured to detect steering torque input by a driver to a steering system. The actuator is configured to generate drive torque to be given to the steering system. The driver verifier is configured to verify whether driver information obtained from the driver matches registered information registered in advance. The steering controller is configured to control the drive torque generated by the actuator based on the steering torque. In a case where the driver verifier determines that the driver information does not match the registered information, the steering controller is configured to permit the driver to steer until a vehicle drives a set distance, and then to cause the actuator to generate the drive torque prohibiting the driver from steering.

Abstract: A secondary battery protection circuit for controlling charge and discharge using a switching circuit to protect a secondary battery from temperature is provided. The switching circuit is configured to be provided in a charge-and-discharge path between the secondary battery and an external device. The secondary battery protection circuit includes a detection terminal configured to be electrically connected, via a resistor, to between the switching circuit and the external device. The secondary battery protection circuit includes a first terminal configured to be electrically connected to a temperature detection terminal of the external device. The secondary battery protection circuit includes a second terminal to which a temperature sensitive element is configured to be electrically connected, the temperature sensitive element having a characteristic value varying in accordance with a change in temperature of the secondary battery.

Abstract: A braking control apparatus includes a contact determiner and a collision brake processor. The contact determiner is configured to determine whether a collision determination on a contact of a vehicle is satisfied. The collision brake processor is configured to cause a brake device of the vehicle to generate a braking force to achieve a predetermined deceleration rate of the vehicle if the contact determination is satisfied. The collision brake processor is configured to, upon determining that the brake device is in a predetermined pre-contact braking state immediately before the contact determination is satisfied, set a deceleration rate of the vehicle after the contact determination is satisfied to a value larger than in a case where the collision brake processor does not determine that the brake device is in the predetermined pre-contact braking state.

Abstract: A display module includes an image light generation device configured to generate image light, a first reflection section configured to reflect the image light from the image light generation device, a first diffraction element configured to diffract the image light entering a first incident surface, a second reflection section configured to reflect the image light from the first diffraction element, and a second diffraction element configured to diffract the image light entering a second incident surface, thereby forming an exit pupil. When viewed from a normal line direction of a virtual plane including a normal line of the first incident surface and a normal line of the second incident surface, an optical axis of the image light from the image light generation device toward the first reflection section and an optical axis of the image light from the first diffraction element toward the second reflection section intersect each other.

Abstract: A virtual image display apparatus includes an image light generation device, a projection optical system configured to project image light emitted from the image light generation device, a folding mirror configured to reflect the image light from the projection optical system in an intersection direction, a semi-transmissive mirror configured to reflect a part of the image light from the folding mirror, and a concave mirror configured to reflect the image light from the semi-transmissive mirror forming an exit pupil, in which the folding mirror is disposed between the semi-transmissive mirror and the concave mirror when viewed in a first direction, provided that the first direction is a direction from an intersection point between a projection optical axis that is an optical axis of the projection optical system and the folding mirror toward an emission optical axis that is an optical axis from the concave mirror toward the exit pupil.

Abstract: A display element, and a light-guiding member including a plurality of reflection surfaces and configured to guide image light from the display element by reflecting the image light at an inner surface, and cause the image light and external light to be visually recognized in an overlapping manner are provided, wherein at a boundary between a first reflection surface and a second reflection surface adjacent to each other included in the plurality of reflection surfaces of the light-guiding member with at least one of the first reflection surface and the second reflection surface including a curved surface, an end of the first reflection surface and an end of the second reflection surface match when projected from a specific direction.