Patent ID: 8469513

Claim:
A retinal scanning display comprising: a light source part which is configured to radiate a light modulated in response to an image signal relating to an image; a scanning part which is configured to display the image by scanning the light radiated from the light source part in a predetermined scanning direction; and a diffraction element which is arranged on an optical path of the light radiated from the light source part and is configured to diffract the light radiated from the light source part in a predetermined diffraction direction, where the diffraction element is arranged such that the light is diffracted at approximately 45 degrees with respect to the scanning direction; and the diffraction element has a stripe shape at a predetermined pitch, and an angle made between the scanning direction and stripes is set to approximately 45 degrees; wherein the scanning part is constituted of a first scanning part which scans the light radiated from the light source part in a first scanning direction and a second scanning part which scans the light radiated from the light source part in a second scanning direction which is substantially orthogonal to the first scanning direction, and the diffraction element is arranged such that the light is diffracted at approximately 45 degrees with respect to both the first scanning direction and the second scanning direction.