Light emitting device and optical device

The light emitting device according to claim 15, wherein the lid portion is composed of sapphire.

• 17. An optical apparatus comprising:
• the light emitting device according to claim 7;
• a collective lens configured and arranged to collect lights passed though the collimate lens;
• and
• a light pipe through which the light passed through the collective lens passes, wherein
• a light incident surface of the light pipe has a shape that is elongated in one direction,
• each of a direction in which an absolute value of spread angle of the first light is maximized, a direction in which an absolute value of spread angle of the second light is maximized and a direction in which an absolute value of spread angle of the third light is maximized is parallel to a first direction when the first light, the second light and the third light enter the light pipe, and
• the light pipe is arranged so that the first direction and a shorter side direction of the light incident surface of the light pipe intersect with each other.
• 18. The optical apparatus according to claim 17, wherein
• a light exiting surface of the light pipe is rectangular.

An optical apparatus comprising:

• a light emitting device including a first semiconductor laser element configured and arranged to irradiate a first light having a first peak wavelength in a visible range, a second semiconductor laser element configured and arranged to irradiate a second light having a second peak wavelength in the visible range, and a third semiconductor laser element configured and arranged to irradiate a third light having a third peak wavelength in the visible range, the first peak wavelength, the second peak wavelength and the third peak wavelength being different from each other;
• and
• a light pipe through which the first light, the second light and the third light pass, wherein
• the light pipe has a light incident surface having a shape that is elongated in one direction,
• each of a direction in which an absolute value of spread angle of the first light is maximized, a direction in which an absolute value of spread angle of the second light is maximized and a direction in which an absolute value of spread angle of the third light is maximized is parallel to a first direction when the first light, the second light and the third light enter the light pipe, and
• the light pipe is arranged so that the first direction and a shorter side direction of the light incident surface of the light pipe intersect with each other.

The optical apparatus according to claim 20, further comprising:

• a collimate lens arranged on paths of the first light, the second light and the third light;
• and
• a collective lens configured and arranged to collect the first light, the second light and the third light passed through the collimate lens between the light emitting device and the light pipe.
• 22. The optical apparatus according to claim 21, wherein
• a light exiting surface of the light pipe is rectangular.