telecentric

telecentric 

Pertains to an optical system in which its aperture stop is positioned so that the entrance pupil falls in the first focal plane, the exit pupil is at infinity, and the rays through the centre of the entrance pupil from all points on the object are parallel to the axis in the image space. Similarly, if the exit pupil lies in the second focal plane the entrance pupil will be at infinity, and the rays through the centre of the exit pupil will be parallel to the axis in the object space.
References in periodicals archive ?
Opto Engineering supports engineers in low-level programming with general purpose libraries (FabImage Library Suite) and specific, application-related libraries: TCLIB Suite, dedicated to setup and optimisation of telecentric systems (alignment of lens and light, alignment of object plane, focusing and distortion removal), and 360LIB Suite, developed to suit all needs of 360[degrees] lenses for single-camera inspection of cavities and lateral surfaces.
In such an arrangement, none of the mirrors satisfies the telecentric configuration [65].
Also, the model described in this section is mainly based on the assumptions of the telecentric lens [14], which cannot be applied directly to the standard perspective lens condition.
The Quick Image CNC (QI-C) from Mitutoyo is a telecentric lens-based 2D video inspection system that features a wide field of view-32 x 24 mm-and a depth of focus up to [+ or -] 11 mm.
Merlin, the other benchtop model, offers a 5Mp camera with a telecentric lens, for inspecting parts down to 01005 and 0.3mm pitch.
The IOLMaster 700 uses a distance-independent telecentric keratometer for the keratometry measurement, as does the IOLMaster 500, and keratometry values are measured in 32 points arranged in 2 concentric rings of 1.65 mm and 2.30 mm in diameter [7].
Zhang, "Design of an optical system consisting of a special telecentric lens for side-scattering measurement on individual cells," Optical Engineering, vol.
Reference [2] theoretically describes the measurement errors caused by out-of-plane displacement and self-heating of the camera; it further establishes a high-accuracy two-dimensional digital image correlation (2D-DIC) system using a bilateral telecentric lens to minimize the errors.
Daystar Filters' Quark Ha filter fits the bill by combining an electronically controlled, temperature-regulated etalon and 4.2X telecentric Barlow into a safe, lightweight unit that's placed directly into your small refractor's focuser.
Fiber thinning during the LES-AB process was observed using a charge coupled device (TK-C1461, Victor) equipped with a two-power telecentric lens (Optart).