Optical device
AssigneeNGK Insulators, Ltd.
InventorsAkiyoshi Ide, Yasunori Iwasaki, Masashi Fukuyama
Life of this patent
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Abstract
A light controlling means includes a shutter member and an actuator. The shutter member is disposed in a slit and has a function to shut off signal light propagated in the light path of an optical fiber array. The actuator is constructed to drive and move the shutter member in a vertical direction. The shutter member is fixed to one end of the actuator and positioned substantially in alignment with an inclination angle of the slit. Further, a base member of the shutter member is made from transparent quartz glass. A light reflecting film is formed on a portion of one of the plate surfaces of the shutter member, on a surface opposite the optical axis of a light exit portion.
Claims10
An optical device comprising:
- an optical fiber array having at least one optical fiber;
- a slit defined in an optical path of said optical fiber array;
- and
- light control means disposed in or near said slit for attenuating or blocking light that is propagated through the optical path of said optical fiber array.
An optical device comprising:
- an optical fiber array having at least one optical fiber;
- a monitor for detecting branched light from signal light that is propagated through an optical path of said optical fiber array and converting the detected branched light into an electric signal depending on an intensity of said branched light;
- and
- a light controller for controlling the signal light that is propagated through the optical path of said optical fiber array based on the electric signal from said monitor;
- said light controller comprising:
- light control means disposed in or near said slit for attenuating or blocking light that is propagated through the optical path of said optical fiber array.
Dependencies are inferred from the claim text.