To correct for spherical aberration in lenses, achromatic lenses can be used. |
The objectives are adopted by poly-membrane achromatic lenses and collocated with widefield eyepieces. |
The superior achromatic lenses will show you color and details you have never seen before in both your antique and self-made stereo views. |
The 'Barlow lens', a modification of this telescope lens, is a negative achromatic combination of flint glass and crown glass. |
This stark and achromatic poem is a world away from the graceful and well-tuned lyrics with which Campbell began his career. |
The system had to be achromatic and diffraction limited for two specific wavelengths spaced about 35 nm apart. |