Optical position sensor and isolation sensor using this position sensor

An optical position sensor comprising:

• a light shading plate having two slits defined therein serving as light introduction ports, said slits being located such that said two slits intersect each other;
• and
• a light reception portion including a pair of unidimensional light reception sensors disposed so as to oppose said light shading plate with a predetermined gap therebetween, said pair of unidimensional light reception sensors being defined by a plurality of photo-electric conversion devices aligned in a manner so as to cross each of said slits at a position opposing each of said slits, wherein said two slits and said pair of photo-electric conversion devices perpendicularly cross one another, and wherein said two slits criss-cross each other, and said pair of photo-electric conversion device are arranged into an L shape.

An optical position sensor comprising:

• a light shading plate having two slits defined therein serving as light introduction ports, said slits being located such that said two slits intersect each other;
• and
• a light reception portion including a pair of unidimensional light reception sensors disposed so as to oppose said light shading plate with a predetermined gap therebetween, said pair of unidimensional light reception sensors being defined by a plurality of photo-electric conversion devices aligned in a manner so as to cross each of said slits at a position opposing each of said slits, wherein said two slits and said pair of photo-electric conversion devices perpendicularly cross one another, wherein said two slits are arranged into an L shape, and said pair of photo-electric conversion device are arranged into an L shape.

An isolation sensor comprising:

• a light shading plate having a first slit and a second slit, as light introduction ports, defined therein, said first slit and said second slit intersecting each other;
• and
• a light reception portion including a first unidimensional light reception sensor and a second unidimensional light reception sensor, said first and second unidimensional light reception sensors being disposed so as to oppose said light shading plate with a predetermined gap therebetween, said first and second unidimensional light reception sensors including a plurality of photo-electric conversion devices, said first unidimensional light reception sensor being disposed so as to cross only said first slits at a and said second unidimensional light reception sensor being disposed so as to cross only said second slit.

An insolation sensor comprising:

• a light shading plate having two slits defined therein serving as light introduction ports, said slits being located such that said two slits intersect each other;
• and
• a light reception portion including a pair of unidimensional light reception sensors disposed so as to oppose said light shading plate with a predetermined gap therebetween, said pair of unidimensional light reception sensors being defined by a plurality of photo-electric conversion devices aligned in a manner so as to cross each of said slits at a position opposing each of said slits, wherein said two slits and said pair of photo-electric conversion devices perpendicularly cross one another, and wherein said two slits criss-cross each other, and said pair of photo-electric conversion device are arranged into an L shape.

An insolation sensor comprising:

• a light shading plate having two slits defined therein serving as light introduction ports, said slits being located such that said two slits intersect each other;
• and
• a light reception portion including a pair of unidimensional light reception sensors disposed so as to oppose said light shading plate with a predetermined gap therebetween, said pair of unidimensional light reception sensors being defined by a plurality of photo-electric conversion devices aligned in a manner so as to cross each of said slits at a position opposing each of said slits, wherein said two slits and said pair of photo-electric conversion devices perpendicularly cross one another, wherein said two slits are arranged into an L shape, and said pair of photo-electric conversion device are arranged into an L shape.