|Type:||Plano||Material:||Imported JGS1 Quartz|
16*1.6mm Beam Combiner,
3X Eyepiece Beam Combiner,
Plano Beam Combiner
3X eyepiece 16*1.6mm Beam Combiner Imported JGS1 Quartz
Eyepiece: The visual optical device used to boserve the image, formed by the front optical system is an integral part of telescopes, microscopes and other visual optical instruments, In order to eliminate abeeration, eyepiece is usually composed of evveral lenses, which has a large field of view and angle magnification.
In terms of the optical characteristics of the eyepiece, it has the following characteristics:
(1) The focal length is short. The focal length of common eyepiece is about 15mm-30mm. Compared with common telescope, the focal length is short.
(2) The relative aperture is relatively small. Because the output beam of eyepiece directly enters into the pupil of human eye, the diameter of the pupil of human eye is generally about 2mm-4mm, so the exit pupil diameter of most laboratory instruments is generally about 2mm, and the common range of eyepiece focal length is 15mm-30mm, so the relative aperture of eyepiece is generally less than 1 / 5
(3) The field of view is large. It is usually about 40 degrees, and the field of view of the wide-angle eyepiece is about 60 degrees.
(4) The entrance pupil and exit pupil are far away from the lens group
16*1.6mm 3X eyepiece could use for the laser marking machine, Diameter:30mm FL=80 focus lens used at same time.