| 1 | Microscopes and telescopes are optical instruments. | |
| 2 | We have booked your order No 267 for optical instruments. | |
| 3 | Densitometer: An optical instrument used to measure the intensity of transmitted or reflected light. | |
| 4 | With this Optical Equipment, we are able to distinguish 0.025 micron microwave. | |
| 5 | Spectrometer is an important optical instrument. It is widely used in various areas of science and technology. |