Sentence examples for Field lens from inspiring English sources

The power of the field lens is chosen so that it will form an image of the objective lens aperture on the relay lens aperture.

An alternative form is the reflecting viewfinder in which the photographer looks down into a field lens on top of the camera.

With fine steps a few thousandths of an inch wide, molded plastic Fresnel lenses are often used as condensers in overhead projectors and in cameras as a field lens in contact with a ground-glass viewing screen.

In each channel, two lenses are designed to control the angular magnification and a field lens is added to improve the image quality and extend the field of view.

Since, it is impractical to realize such a large core diameter fiber of 21 mm, we propose a field lens to converge the blur disk to 3 mm spot size.

Of the 200 or so plants that Les Mehrhoff plucked, sniffed, pinched, tasted or peered at through a field lens during a three-hour hike along the shore of Long Island Sound late Friday afternoon, probably three-quarters were not from around here.

The main difference between these designs is the usage of relay and field lenses.

The ion-optical models utilised include a commercial mass spectrometer and two novel high-resolution energy spectrometers (TESI and TESII), incorporating quadrupole and hexapole field lenses to focus the beam and reduce image aberrations.

A wide variety of thin Fresnel lenses are molded in plastic, the width of the rings being only a few thousandths of an inch, for use as field lenses with ground-glass screens in cameras and small projectors to increase the brightness of the outer parts of the screen.

She also applies a more wide-field lens to the known ensemble of exoplanets, particularly those orbiting stars smaller than half our Sun's mass.

In mice, we used instrumentation as previously described, with a modified cSLO (Heidelberg Retina Angiograph 2, Heidelberg Engineering, Dossenheim, Germany) and a wide-field lens (55°).