| When a convex lens of the right strength is placed in front of the hypermetropic eye, the light rays are refracted to focus on the retina. |
| Output of laser was focused on the surface of graphite target using a 80 mm focal length convex lens. |
| A double convex lens with a focal length of 50 cm is fixed in a PVC pipe about 60 cm long. |
| He was the first to propose adding a convex lens to the camera obscura. |
| In the construction of reflecting telescopes, concave mirrors, or specula, are combined with a double convex lens. |
| We saw in the last section that a real image is formed by light moving through a convex lens. |
