Image forming device for diagnostic purposes

An image forming apparatus for diagnostic purposes from the handle type, which is suitable for medical or dental use, has a held by the fingers of the operator main body, a light emitting device for emitting at least one type of light selected from the excitation light, infrared light and ultraviolet light, and a front in a section of the main body existing image forming apparatus. The image forming means has a solid-state imaging device and an optical means for generating an optical image of a subject to be examined diagnosis object on the solid-state image capturing device, and is so constituted that it outputs by predetermined diagnosis image information that they reflected the most diagnostic object light and / or receives the fluorescence, as generated by the diagnostic object when irradiation of light is performed by the light emitting device to the diagnostic object.