Optical deflection array
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device
Optical device and control method thereof
Optical device and its production method
Optical device and light waveguide integrated circuit
Optical device and method for manufacturing the same
Optical device and method of producing the same
Optical device comprising a plurality of units having at least t