174457 ⎘
Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only arranged + - + two of the components having compound lenses the middle and rear components having compound lenses
IMAGING OPTICAL SYSTEM, IMAGE CAPTURE DEVICE, AND CAMERA SYSTEM
#2Plurality of imaging optical systems and image pickup apparatus using the same
#3Imaging optical system and image pickup apparatus including the same
#4Imaging lens
#5Optical system