Figure 4
From: Experimental imaging properties of immersion microscale spherical lenses
Optical images of a semi-immersed microscale lens on a small object at different distance d.
(a) d = 0. (b) d = 3.1 μm. (c) d = 4.1 μm. A virtual image is formed at each of the three distances studied here. The small object is fabricated from the 280 nm PS microspheres. The lens is semi-immersed in the SU-8 resist. The scale bar is 2 μm.
