Significats de object glass en anglès

Then he began to examine the telescope, the object glass was gone!

B. Astigmatism is detected by rotating the object glass or object glass cell.

He unscrewed the object glass from Voules's telescope, but in vain tried to obtain a light.

An achromatic refracting telescope, of three and a half feet, and triple object glass, made by Mr Dollond.

The total movement of the half- object glass is double the distance between the star images in the focal plane.

You may be the man to tell him how to do it without adding to the diameter of his object glass.

No doubt if this had been the case, a perfect telescope could have been produced by properly shaping the object glass.

The power which I usually employ magnifies but one hundred and fifty diameters; and I use the entire aperture of my object glass.

In such a case, no tube could be used, and the object glass was merely fixed at the top of a high pole.

I have also used a divided lens, like two stereoscopic lenses brought close together, in front of the object glass of a telescope.

It was speedily determined that the object glass should be shaped by the Clarks, who should also be responsible for getting the rough disks.

Any errors left over are to be attributed to other causes than the want of collinearity of the axes of object glass and eyepiece.

The adjusting screws of the cell mounting the object glass may be worked until the best result is attained; this requires great care and patience.

On Nov. 24th, 'On Computing the Diffraction of an Object Glass,' to the Cambridge Society.

"No, no, the object glass; the object glass out of my telescope."

To these achromatic object glasses, as they are called, the great development of astronomical knowledge, since Newton's time, is due.