Magnification endoscopy usually involves the use of a movable lenses that allows the endoscopist to zoom in on a small area of mucosa and magnify it up to 150 times [ 9].
One simple design consists of two fixed convex (converging) lenses of unequal power with a movable concave (diverging) lens between them.
Even when she changed cameras and switched to a lens with a movable aperture, she chose to keep it at its widest, which meant a shallow depth of field — one thin plane of focus, with everything in front of it and behind it slipping into a haze.
"Just a movable line," according to White.
Finally, many digital single-lens reflex cameras have movable focus points, meaning the camera can be focused automatically on a point that is not in the center.
Therefore, this actuator has been successfully integrated in an optical bench and allows the displacement of a micro-lens supported by a movable silicon-frame.
Based on a planetary contour scanning laser machining method along with a shading metal mask and sample movable stage, an array of micro-lenses with precisely controlled surface profiles can be fabricated.
Secaucus, NJ (March 7, 2010) – Panasonic today announces the LUMIX DMC-G2, the world's first* digital interchangeable lens system camera with a movable LCD that allows for touch-control, and the successor to the award-winning and revolutionary LUMIX G1, which was the world's first Micro Four Thirds digital camera.
The development was focused on two main groups of rasters – active rasters with linear Fresnel lenses in fixed installation and with movable photo-thermal and/or photo-thermal/photo-voltaic absorbers.
Apple's design uses a movable adapter between the actual image sensor and the external lens element, which could enable it to switch between two different modes – one for high-resolution standard photos, like the iPhone takes now, and one for lower-resolution refocusable pics, like the Lytro captures.
