References in periodicals archive ?
The research study helps in identifying developments in the Africa objective lens market, further helping the leading players strengthen their position in the overall market.
The position of the reducer along the optical axis is not of paramount importance--there is a very high flexibility in this--but another aspect of the parachromat is that we can assume that the reduction lens is an objective lens with a weak lens placed in front of it, somewhat spoiling the correction.
oil objective lens was used; and a second filter wheel equipped with band pass emission filters CFP (470/30 nm), GFP (HQ 470/40 nm), and YFP (500/20 nm) was placed at the camera port.
Such a unit has between 8x and 12x, with an objective lens no smaller than 50 millimeters.
This is due to the high NA of the objective lens and the size of the magnetic field in the flying head design.
Light transmission through a scope has absolutely nothing to do with the size of the objective lens and everything to do with the number of lenses, the composition of those lenses and the coatings placed on them.
Furthermore, the research report throws light on drivers and challenges in the objective lens market in the top five countries in the Americas.
It's actually quite simple and is calculated by dividing the objective lens diameter by the magnification.
It's basically like a Porro prism binocular with the objective lens to the left of the ocular lens.
Other key features include an adjustable ocular focus, chemical rubber armor, 25mm ocular lens, auto shut-off, 10 brightness levels, 30mm objective lens and eye relief of 3.

Full browser ?