| 摘要 |
PROBLEM TO BE SOLVED: To provide a light source unit which reduces dispersion caused by the directivity characteristics of plural light source means in the display characteristics of individuals and supplies high-illuminance image light to a desired visual field. SOLUTION: A light source unit 1 is provided with a substrate means 5, the light emitting diode elements 21, 22 which are arranged on this substrate means 5, a substrate material 8 disposed in front of these light emitting diodes 21, 22, a holographic optical element 7 formed on one side of this substrate material 8 and a housing means 6 which supports this holographic optical element 7 and the substrate material 8. And the light radiated from the light emitting elements 21, 22 is incident on the holographic optical element 7, deflected and made to diffuse to be radiated to specified directions. |
