Patent ID: 8057046

Claim:
A projector device having an optical modulator for modulating light emitted from a light source on the basis of image data and a projecting optical system for enlarging and projecting light modulated by the optical modulator, characterized in that the light source is constructed by using a laminate type light emitting diode device including a plurality of reflection type light emitting diode units of at least red light, green light and blue light that are joinable to one another so as to emit the light in the same direction, wherein; each of the reflection type light emitting diode units comprises a holder case inside which a light emitting diode and a dichroic mirror are arranged so as to face each other, each of the reflective type light emitting diode units further comprises a lead frame formed of high thermal conductive material to which light emitting diode is secured, said lead frame being in contact with the inner surface of the holder case to which heat generated from the light emitting diode units is transmitted, and a spacer interposed between the lead frame and the dichroic mirror for adjusting the distance between the light emitting diode and an optical reflection face of the dichroic mirror in accordance with the height of a chip of the light emitting diode, and a joint member that connects the holder case of one reflection type light emitting diode unit with the holder case of another reflection type light emitting diode unit of said reflection type light emitting diode units so that said reflection type light emitting diode units are stacked and unified into one body to form the laminate type light emitting diode device in which light beams emitted from said reflection type light emitting diode units are transmitted through the dichroic mirrors to be combined with one another and emitted along the optical axis of said device.