Optical illumination device
AssigneeOlympus Optical Co., Ltd.
InventorsTakayuki Suzuki, Yumi Ikeda, Akira Hasegawa, Makoto Tomioka
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Abstract
An optical illumination device includes a light emitting section of discharge type and a condenser mirror placed behind the light emitting section to introduce illumination light into a light transmitting fiber. The light emitting section is placed so that its vertical component is larger than its axial component. In this way, rays from the light emitting section can be efficiently introduced into the light transmitting fiber of small diameter without loss.
Claims2
An optical illumination device for introducing illumination light into a light transmitting fiber, said optical illumination device comprising:
- a light emitting section of discharge type;
- and
- a condenser mirror placed behind said light emitting section,
- wherein said light emitting section is aligned lengthwise in a direction orthogonal to an optical axis of said optical illumination device, and
- wherein said condenser mirror is constructed and arranged to project an image of said light emitting section on an entrance end of said light transmitting fiber so that the projected image of said light emitting section is aligned substantially lengthwise in a direction orthogonal to the optical axis.
Dependencies are inferred from the claim text.