Abstract: A medical equipment includes an optical connector that detachably connects a plug to a receptacle provided in an equipment main body to optically connect a plug-side optical fiber fixed to the plug and a receptacle-side optical fiber fixed to the receptacle. The plug and the receptacle have plural engagement pairs each having a protrusion that protrudes in an insertion direction of the plug and an engagement part that is adapted to be engaged with the protrusion. Engagement beginning positions of the engagement pairs where the protrusions and the engagement parts begin to engage are different along the insertion direction. Each engagement pair has a narrower engagement gap between the protrusion and the engagement part than that between the protrusion and the engagement part of any pair which begin to engage earlier as the plug is inserted than the protrusion and the engagement part of each engagement pair.

Abstract: A medical apparatus includes an insertion unit and a light source which supplies light into the insertion unit. A surface of the insertion unit includes: a first and second irradiation portions, a second irradiation portions, and an observation window. wherein each of the first and second irradiation portions has a pair of irradiation windows which emits the light, wherein when a border line bisects a front end surface of the insertion unit through the center point of the observation window, the pair of the irradiation windows are disposed on the both side of the front end surface sandwiching the border line, and wherein a fluorescent body emitting light by the excitation of the light supplied from the light source unit is disposed behind each of optical paths, and the white light is formed by the light supplied to the first irradiation portions and emission in the fluorescent body.