Vari-focal lens system
Vari-focal lens system
Vari-focal lens system
Vari-focal lens system having graded refractive index lens
Vari-focal optical system
Vari-focal polar alignment scope
Vari-focal system having short total length
Vari-focal viewfinder optical system
Variable acousto-optic spectrum projector and method of...
Variable acuity non-linear projection system
Variable aperture
Variable aperture transmissive substage microscope illuminator
Variable attenuated transmittance device control system
Variable attenuator for a lithographic apparatus
Variable beam shaping element
Variable beam splitter having opposed alternating convex and con
Variable blazed grating
Variable blazed grating
Variable blazed grating
Variable blazed grating