Projector

A projector comprising:

• a white light generator that uses a blue laser as a light source to generate blue light and yellow light based on the blue laser and generates white light including the generated blue light and yellow light;
• and
• an optical system that modulates light based on the white light generated by the white light generator with an image display element and projects the modulated light,
• wherein the white light generator is configured to include:
• a dichroic mirror that is irradiated with the blue light from the blue laser as the light source;
• a first condenser lens that focuses blue light being reflected by or passing through the dichroic mirror;
• a diffusion plate that diffuses the blue light focused by the first condenser lens;
• a second condenser lens that focuses the blue light passing through or being reflected by the dichroic mirror;
• and
• a phosphor that is irradiated with the blue light focused by the second condenser lens to emit yellow light,
• wherein the dichroic mirror has a first region having a characteristic of transmitting one of blue light and yellow light and reflecting the other and a second region having a characteristic of reflecting or transmitting both the blue light and the yellow light,
• wherein the blue light included in the white light output by the white light generator is obtained by allowing the blue light diffused by the diffusion plate to pass through the first condenser lens and performing reflection or transmission by the dichroic mirror,
• wherein the yellow light included in the white light output from the white light generator is obtained by allowing the yellow light emitted from the phosphor to pass through the second condenser lens and performing reflection or transmission by the dichroic mirror,
• wherein the dichroic mirror has a region having blue light transmission/yellow light reflection characteristic as the first region and has a region of totally reflecting characteristic as the second region,
• wherein the blue light included in the white light output from the white light generator is light obtained by allowing the blue light diffused by the diffusion plate to pass through the first condenser lens and to be irradiated to the dichroic mirror and to pass through the first region, and
• wherein the yellow light included in the white light output from the white light generator is light obtained by allowing the yellow light emitted from the phosphor to pass through the second condenser lens and to be irradiated to the dichroic mirror and to be reflected from the first region.