Abstract: Disclosed is a camera device including: a camera body; a transparent lens cover configured to cover a lens portion of the camera body; and a guard member configured to protect the lens cover from external impact, in which a projecting part is formed in the guard member, and when the camera device is mounted on a target object, the camera device is in a first state in which the lens cover is disposed between the projecting part of the guard member and the target object, or is in a second state in which the projecting part of the guard member is disposed between the lens cover and the target object.

Abstract: An analyzer of the invention adequately analyzes a change in road network by using probe information generated with driving of a vehicle. This analyzer determines a traffic amount of vehicles passing through a specified section included in the road network from a plurality of the probe information accumulated over a predetermined period. The analyzer also determines a discontinuity rate, which is a rate of incidents that vehicle locations are discontinuous in the specified section, from the plurality of probe information accumulated over the predetermined period. The analyzer detects a change in the road network, based on a degree of change between traffic amounts in two different periods with respect to the specified section included in the road network and a degree of change between discontinuity rates in the two different periods. The detected change in the road network can be used for survey of the road network.

Abstract: A road network analysis system detects major changes in a road network based on probe information from a plurality of vehicles. The probe information is tabulated and the change in the amount of traffic is calculated for each road with a predetermined time interval. If a remarkable change in the amount of traffic is detected for a road before and after a specific baseline day, it is determined that a major change in the road network affecting the traffic has occurred in the vicinity of the road, and the road is specified as a change-related road. A path search may be performed between the endpoints of a plurality of change-related roads, and the searched paths that have the most overlap with the searched paths are selected so as to identify the change-related roads which are commonly affected by the same cause and the endpoints thereof.

Abstract: A regulation information analysis system determines transit regulations imposed on a target road or intersection to be analyzed based on probe information sent from a plurality of vehicles. An analysis terminal determines if transit regulations are in effect or not by detecting if the probe information indicating a transition that violates a method of transition to be analyzed, such as right/left turn prohibition is present at the target road or intersection. The analysis terminal determines, based on the geometric shape and the like of the target road or intersection, if there is an avoidance factor which a driver would desire to avoid transiting the target rode or intersection. The quantity of the probe information used for determining the presence or absence of the transit regulations is increased if the avoidance factor is found, whereby the determination accuracy is increased while the overall quantity of the probe information is suppressed.

Abstract: A road network analysis system detects major changes in a road network based on probe information from a plurality of vehicles. The probe information is tabulated and the change in the amount of traffic is calculated for each road with a predetermined time interval. If a remarkable change in the amount of traffic is detected for a road before and after a specific baseline day, it is determined that a major change in the road network affecting the traffic has occurred in the vicinity of the road, and the road is specified as a change-related road. A path search may be performed between the endpoints of a plurality of change-related roads, and the searched paths that have the most overlap with the searched paths are selected so as to identify the change-related roads which are commonly affected by the same cause and the endpoints thereof.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises: a plurality of substrates which are placed on or under a retina of a patient's eye; a plurality of electrodes which are mounted on each substrate to apply an electrical stimulation pulse signal to cells constituting the retina; and a connecting unit which has flexibility and connects the substrates.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises an electrode array having a plurality of electrodes placed on or under a retina of an eye of the patient for applying an electrical stimulation pulse signal to cells constituting the retina; a photographing unit which photographs an object to be recognized by the patient; a converting unit which converts photographic data transmitted from the photographing unit to data for electrical stimulation pulse signals; and a control unit which outputs an electrical stimulation pulse signal through each electrode based on the data for electrical stimulation pulse signals so that the control unit produces pulse output through one of a first electrode and a second electrode during a halt time of pulse output through the other electrode, the first and second electrodes being arranged within a distance such that electrical stimulation pulse signals outputted therethrough at substantially the same time are likely to interfere with each other.

Abstract: An artificial vision system for regenerating or restoring vision of an eye of a patient includes: a power acquiring unit which is disposed inside the eye, includes a magnetic core having an opening and a coil wound around the magnetic core, and is adapted to acquire power from outside a body using electromagnetic induction; and a plurality of electrodes which is provided at a retina and is adapted to electrically stimulate cells constituting the retina.

Abstract: A visual restoration aiding device including an electrode array having a plurality of electrodes placed on or under a retina of an eye of the patient for applying an electrical stimulation pulse signal to cells constituting the retina; a photographing unit which photographs an object to be recognized by the patient; a converting unit which converts photographic data transmitted from the photographing unit to data for electrical stimulation pulse signals; and a control unit which outputs an electrical stimulation pulse signal through each electrode based on the data for electrical stimulation pulse signals so as not to simultaneously output the electrical stimulation pulse signals through electrodes arranged within a distance that electrical stimulation pulse signals outputted through the electrodes will interfere with each other and which switches between the electrodes used for outputting the electrical stimulation pulse signals and the electrodes unused for outputting the electrical stimulation pulse signal

Abstract: A non-contact type tonometer includes a fluid blowing device which blows fluid against a cornea of an eye of an examinee; an intraocular pressure measurement part which detects a deformed state of the cornea caused by the blown fluid and determines intraocular pressure of the examinee's eye based on a result of detection of the deformed state; a pulsation detection part which detects pulsation of the examinee; a measurement timing determination part which can determine a measurement timing based on the detected pulsation to obtain a predetermined number of results of measurement on the intraocular pressure in synchronization with different phase points in the pulsation; a command signal input part which inputs a command signal for execution of the measurement; and a control part which outputs a control signal for controlling driving of the fluid blowing device based on the determined measurement timing and the input command signal.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises an electrode array having a plurality of electrodes placed on or under a retina of an eye of the patient for applying an electrical stimulation pulse signal to cells constituting the retina; a photographing unit which photographs an object to be recognized by the patient; a converting unit which converts photographic data transmitted from the photographing unit to data for electrical stimulation pulse signals; and a control unit which outputs an electrical stimulation pulse signal through each electrode based on the data for electrical stimulation pulse signals so that the control unit produces pulse output through one of a first electrode and a second electrode during a halt time of pulse output through the other electrode, the first and second electrodes being arranged within a distance such that electrical stimulation pulse signals outputted therethrough at substantially the same time are likely to interfere with each other.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises: a plurality of substrates which are placed on or under a retina of a patient's eye; a plurality of electrodes which are mounted on each substrate to apply an electrical stimulation pulse signal to cells constituting the retina; and a connecting unit which has flexibility and connects the substrates.

Abstract: A visual restoration aiding device for restoring vision of a patient comprises: an electrode array having a plurality of electrodes placed on or under a retina of an eye of the patient for applying an electrical stimulation pulse signal to cells constituting the retina; a photographing unit which photographs an object to be recognized by the patient; a converting unit which converts photographic data transmitted from the photographing unit to data for electrical stimulation pulse signals; and a control unit which outputs an electrical stimulation pulse signal through each electrode based on the data for electrical stimulation pulse signals, the control unit controlling the signal output so as not to simultaneously output the electrical stimulation pulse signals through electrodes arranged within a distance that electrical stimulation pulse signals outputted through the electrodes will interfere with each other and the control unit switching between the electrodes used for outputting the electrical stimulation

Abstract: A vitreous surgical apparatus in which an inner tubular blade is moved in an axis direction with respect to an outer tubular blade by supply and exhaust of compressed air to excise a part of a vitreous body in an eyeball and aspirate and discharge the excised part out of the eyeball, the apparatus including: a plurality of solenoid valves each of which is opened and closed for performing the supply and exhaust of the compressed air; and a control unit which synchronously drives the solenoid valves to open and close in order to move the inner tubular blade at a desired cutting speed.

Abstract: An artificial vision system for regenerating or restoring vision of an eye of a patient includes: a power acquiring unit which is disposed inside the eye, includes a magnetic core having an opening and a coil wound around the magnetic core, and is adapted to acquire power from outside a body using electromagnetic induction; and a plurality of electrodes which is provided at a retina and is adapted to electrically stimulate cells constituting the retina.

Abstract: A camera apparatus which includes a casing; a pan unit having an external video incident section; a pan shaft; a pan shaft support; pan driving means for rotating the pan unit about the pan shaft; a tilt unit having an internal video incident section and tilt face; a tilt shaft; tilt driving means for rotating the tilt unit about the tilt shaft; and a camera disposed inside the tilt unit. This configuration allows to visibly recognize the movement of the camera, and increases the design flexibility by covering an internal mechanism. Moreover, the apparatus may be downsized by reducing the unused space inside. Furthermore, a simple mechanism increases the productivity of the camera apparatus.

Abstract: In a peristaltic aspiration pump, a plurality of rollers are equally spaced apart from a rotating shaft and rotatable about the rotating shaft. The rollers sequentially compress and occlude an aspiration tube to generate a vacuum pressure within the aspiration tube. An irrigation-aspiration apparatus aspirates tissue to be removed together with an irrigation fluid supplied to an operated part via the aspiration tube, using the peristaltic aspiration pump. The peristaltic aspiration pump is driven under control to change the travelling speed of the roller in accordance with statuses of occluding the aspiration tube.

Abstract: A non-contact type tonometer includes a fluid blowing device which blows fluid against a cornea of an eye of an examinee; an intraocular pressure measurement part which detects a deformed state of the cornea caused by the blown fluid and determines intraocular pressure of the examinee's eye based on a result of detection of the deformed state; a pulsation detection part which detects pulsation of the examinee; a measurement timing determination part which can determine a measurement timing based on the detected pulsation to obtain a predetermined number of results of measurement on the intraocular pressure in synchronization with different phase points in the pulsation; a command signal input part which inputs a command signal for execution of the measurement; and a control part which outputs a control signal for controlling driving of the fluid blowing device based on the determined measurement timing and the input command signal.

Abstract: A camera apparatus which includes a casing; a pan unit having an external video incident section; a pan shaft; a pan shaft support; pan driving means for rotating the pan unit about the pan shaft; a tilt unit having an internal video incident section and tilt face; a tilt shaft; tilt driving means for rotating the tilt unit about the tilt shaft; and a camera disposed inside the tilt unit. This configuration allows to visibly recognize the movement of the camera, and increases the design flexibility by covering an internal mechanism. Moreover, the apparatus may be downsized by reducing the unused space inside. Furthermore, a simple mechanism increases the productivity of the camera apparatus.

Abstract: A vitreous surgical apparatus in which an inner tubular blade is moved in an axis direction with respect to an outer tubular blade by supply and exhaust of compressed air to excise a part of a vitreous body in an eyeball and aspirate and discharge the excised part out of the eyeball, the apparatus including: a plurality of solenoid valves each of which is opened and closed for performing the supply and exhaust of the compressed air; and a control unit which synchronously drives the solenoid valves to open and close in order to move the inner tubular blade at a desired cutting speed.