Taiyo Corporation

Yamada Iryo Shomei Kabushiki Kaisha

Mitsuhiro Koyama

Yasuhiro Kato

Seitaro Yamazaki

Mariko Koizumi

A lighting device includes a main body including a belt-shaped portion mounted along a circumferential direction of a head of a wearer, a storage case provided in the main body and positioned in a forehead region of the wearer when the lighting device is mounted on the wearer, and a light source unit that is incorporated in the storage case and includes a light emitting diode (LED) substrate on which a plurality of LED light sources is mounted. The light source unit includes a condensing lens for condensing light emitted from the plurality of LED light sources, a reflecting mirror for deflecting light emitted from the condensing lens and reflecting the light toward an affected part of a patient, and a radiator plate that radiates heat generated from the LED substrate and extends from a forehead region toward a parietal region of the wearer.

Head-mounted type lighting device

Light for medical use

An automatic focus position adjusting unit for use in a shadowless lighting device for medical purposes includes a sensor, a start switch, a start processor, and a direction adjuster. The unit also includes a focus mover, a peak detector, and an adjustment completion unit. The shadowless lighting device for medical purposes has a housing, illuminating bulbs arranged in the housing, and a drive system for inclining the illuminating bulbs so that the optical axes of the illuminating bulbs may converge, and form a focus, on a predetermined position along a focus moving axis. The automatic focus position adjusting unit permits, with a simple operation, an accurate focus position adjustment at a desired position. This is because it is possible to move the focus to a position at which the amount of light, reflected from the predetermined region at the center of the range of light, becomes a maximum.

Automatic focus position adjusting unit for use in shadowless lighting

A shadowless lighting equipment for medical use includes an illuminating device for emitting a wave beam such as an infrared ray beam subjected to frequency modulation on a patient on an operating table so as to form an irradiation area thereon, an image forming device which forms an image of the irradiation area in accordance with a wave beam reflected from the irradiated portion of the patient, and a sensor for comparing information regarding an image forming position by the image forming device with information regarding a light concentration position of a lighting device. In this comparison, when the image forming position is spaced apart from the light concentration position, an output containing information regarding the positional difference between the positions is provided, and, in response to such an output, the lighting device is driven in the X axis, Y axis, and perpendicular directions of a coordinate surface so that the light concentration position becomes the same as the image forming position.

Growing community of inventors

Tokyo, Japan

Mitsuhiro Koyama