Figure 3
From: Experimental imaging properties of immersion microscale spherical lenses
Optical images of a microscale lens on a large object at different distance d.
(a) d = 0, a virtual image is formed. (b) d = 3.1 μm, a real image is formed. (c) d = 4.1 μm, a real image is formed. (d) SEM image of a microscale lens that is not semi-immersed in the SU-8 resist. The large object is fabricated with the 960 nm microspheres. The lens is not semi-immersed in the SU-8 resist. The scale bar is 2 μm.
