Features 10-megapixel resolution and a "5x zoom lens that expands…the focusing range from a maximum wide-angle equivalent of a 37mm lens to its maximum optical telephoto equivalent of a 185mm lens".
MEMS deformable mirrors have been used to change the imaging depth of optical coherence tomography (OCT) [ 26] and are expected to provide a focusing range as large as 1mm for an objective lens with NA of 0.4 [ 27].
Xie et al. [ 6] developed a probe based on gradient index lens rod for endoscopic spectral domain OCT with a capability of dynamically tracking the beam focus, for which a dynamic focusing range between 0 to 7.5 mm was demonstrated without moving the probe beam itself.
The objective (front lens) focuses the target image on the reticle (cross-hairs); the eyepiece (rear lens) focuses the eye on the reticle.
In 1931 he built the first electron lens, an electromagnet that could focus a beam of electrons just as a lens focuses a beam of light.
A scan lens and objective lens focus the raster scanning beam onto the tissue.
96.8 mm wide, 57.8 mm high, 20.5 mm deep Camera-shake reduction 20.1-million pixels Editing functions available on-screen Battery life of still shooting: Approx. 220 shots 129g Rechargeable Li-ion Battery NIKKOR lens with 7 x optical zoom Focus range: 50cm to 5cm In the age of eight megapixel cameraphone, have low-budget cameras become redundant?
The lens can focus through its entire range — imagine zooming in all the way and out all the way with a digital camera lens — up to 700,000 times per second, whereas the next fastest competitor lens can change focus only about 150 times per second.
In a first step prior to merging, the corneal images were inverted, as, for efficiency in the focus range shift, the cornea was acquired in the opposite side of the Fourier transform (in comparison with the crystalline lens acquisition).
The reflectance probe was rigidly fixed to the beamsplitter via lens tubes containing a focusing lens.
Their current product line includes a near range version designed for wearable applications that uses a lens to focus the laser on distances up to five centimeters and a far range version with a lens that focuses on distances out to one meter.
