Imagine being able to see perfectly in the dark. This dream has become a reality thanks to a newly developed technology. This technology consists of a thin film that will be placed on the lenses (镜片) of common glasses. The film is cheap to make, easy to produce, and is lightweight. It is actually 100 times thinner than a hair. Yet, despite its tiny size, its performance is impressive; this special film allows you to see in the dark.
This technology is able to transform infra-red light (红外光), normally invisible to the human eye, and turn this into images people can see. Compared to animals, humans have very impoverished night vision. Over the years, night vision devices (设备) have been developed to help the medical, industrial, and scientific worlds. Scientists are able to study night-time animals by using infrared cameras, while companies use infrared imaging for food quality control.
Traditional infrared devices work by discovering the heat of an object. They use a cooler in low temperature and can be easily influenced by the heat noise. Such shortcoming led the team into exploring an improved device.
Their new device is able to function at room temperature. The new technology is unlike the traditional devices. Once this new night vision is used to all, it could save lives. Drivers will be able to see better at night, especially when driving on unlighted roads. Police can use them when searching at night, and hikers who lose their way can feel more confident walking in the dark.
The inventors are excited to make the practical uses. “While this is the first experiment, we are actively working to further advance the technology. Of course, the many uses are exciting and seeing in the dark opens up a new world for all,” said Mohsen Rahmani, lead developer of the technology.
17. What do we know about the film according to the first paragraph?
A.It costs a lot to make. | B.It is difficult to produce. |
C.It looks like regular glasses. | D.It helps us see in the dark. |
18. What does the underlined word “impoverished” in paragraph 2 mean?
A.Clear. | B.Poor. | C.Amazing. | D.Effective. |
19. What does paragraph 4 focus on about the new technology?
A.Its likely buyers. | B.Its future improvements. |
C.Its practical applications. | D.Its working conditions. |
20. What can be inferred about the technology in Mohsen’s words?
A.It needs to be further developed. | B.It is not exciting enough to scientists. |
C.It has become a hit in the experiment. | D.It has been available to common people. |