refractors

the ophthalmologist examined the patient's eyes using refractors.

astronomers use refractors to observe distant stars and galaxies.

the lab needed new refractors for their optical experiments.

refractors bend light to focus images in telescopes.

we compared the performance of different types of refractors.

the quality of the refractors significantly impacted image clarity.

the technician calibrated the refractors before the observation.

refractors are a crucial component in many optical systems.

the manufacturer specialized in producing high-precision refractors.

we ordered several refractors for the new research project.

the refractors were carefully cleaned and maintained.