Abstract: A light source unit includes a blue laser diode of an excitation light shining device for emitting light in a first wavelength range, a red light source of a red light source device for emitting light in a second wavelength range, a luminescent wheel including a wavelength transforming area for transforming the light in the first wavelength range into light in a third wavelength range differing in wavelength range from the light in the first wavelength range and the light in the second wavelength range and emitting the light in the third wavelength range and a transmitting area for emitting the light in the first wavelength range, the wavelength transforming area and the transmitting area being provided end to end in a circumferential direction, and a dichroic mirror configured to transmit one of the lights in the first and second wavelength ranges and reflect a remaining light.

Abstract: A light source unit includes a blue laser diode of an excitation light shining device for emitting light in a first wavelength range, a red light source of a red light source device for emitting light in a second wavelength range, a luminescent wheel including a wavelength transforming area for transforming the light in the first wavelength range into light in a third wavelength range differing in wavelength range from the light in the first wavelength range and the light in the second wavelength range and emitting the light in the third wavelength range and a transmitting area for emitting the light in the first wavelength range, the wavelength transforming area and the transmitting area being provided end to end in a circumferential direction, and a dichroic mirror configured to transmit one of the lights in the first and second wavelength ranges and reflect a remaining light.

Abstract: An optical wheel device according to the present invention includes a first wheel on one side of which a luminescent material layer is disposed, a second wheel disposed on the other side of the first wheel, a first opening portion provided on the first wheel or the second wheel to be situated near a center of rotation, a second opening portion provided further radially outwards than the first opening portion, a communication passage formed between the first wheel and the second wheel to establish a communication between the first opening portion and the second opening portion, a motor configured to rotationally drive the first wheel and the second wheel, and a drive control device configured to control driving of the motor.

Abstract: An optical wheel device according to the present invention includes a first wheel on one side of which a luminescent material layer is disposed, a second wheel disposed on the other side of the first wheel, a first opening portion provided on the first wheel or the second wheel to be situated near a center of rotation, a second opening portion provided further radially outwards than the first opening portion, a communication passage formed between the first wheel and the second wheel to establish a communication between the first opening portion and the second opening portion, a motor configured to rotationally drive the first wheel and the second wheel, and a drive control device configured to control driving of the motor.