condenser lens मीनिंग इन हिंदी

उदाहरण वाक्य

1. The focus can be adjusted by raising or lowering the condenser lenses and diaphragm.
2. Many condensers also give optimal resolution when the condenser lens is immersed in oil.
3. The stages are the condenser lenses, the objective lenses, and the projector lenses.
4. A number of aspherical condenser lenses were placed within each globe to focus the light onto the plates.
5. Modern condenser lenses incorporate optical features specifically designed to direct some light upward towards the locations of retroreflective overhead road signs.
6. For phase contrast microscopy the phase ring ( at the back focal plane of the objective ) and the annulus ( at the back focal plane of the condenser lens ) should appear in focus and in alignment.
7. Apertures are either a fixed aperture within the column, such as at the condenser lens, or are a movable aperture, which can be inserted or withdrawn from the beam path, or moved in the plane perpendicular to the beam path.
8. The condenser lenses are responsible for primary beam formation, while the objective lenses focus the beam that comes through the sample itself ( in STEM scanning mode, there are also objective lenses above the sample to make the incident electron beam convergent ).
9. As with objective lenses, a condenser lens with a maximum numerical aperture of greater than 0.95 is designed to be used under oil immersion ( or, more rarely, under water immersion ), with a layer of immersion oil placed in contact with both the slide / coverslip and the lens of the condenser.
10. However, a projector-like optical system ( i . e ., using condenser lenses for illumination, with a viewing lens in place of the projection lens ), employing daylight ( not direct sunlight ) for the light source, can produce comparably excellent visual results although for only one viewer at a time without the unacceptable hazards of actual projection.