converging lens; concave mirror
Tone colorsmāmámǎmàma
Meanings
2 senses · 6 examplesnoun
converging lens; convex lens that converges light rays into a beam
Commonly used in optical instruments such as microscopes, projectors, and lighthouses.
Zhè这
tái台
xiǎn显
wēi微
jìng镜
de的
jù聚
guāng光
jìng镜
xū需
yào要
qīng清
jié洁
。
The condenser of this microscope needs cleaning.
Tū凸
tòu透
jìng镜
kě可
yǐ以
zuò作
wéi为
jù聚
guāng光
jìng镜
shǐ使
yòng用
。
A convex lens can be used as a converging lens.
Show 1 more exampleShow fewer examples
Jù聚
guāng光
jìng镜
jiāng将
yáng阳
guāng光
jù聚
jiāo焦
dào到
yī一
diǎn点
shàng上
。
The condenser focuses sunlight onto a single point.
noun
concave mirror that focuses parallel light rays to a point
Often used in solar cookers, searchlights, and astronomical telescopes.
Tài太
yáng阳
zào灶
shǐ使
yòng用
āo凹
miàn面
jìng镜
zuò作
wéi为
jù聚
guāng光
jìng镜
。
Solar cookers use concave mirrors as condensers.
Zhè这
zhǒng种
jù聚
guāng光
jìng镜
kě可
yǐ以
jiāng将
píng平
xíng行
guāng光
xiàn线
jù聚
jiāo焦
dào到
jiāo焦
diǎn点
shàng上
。
This type of condenser can focus parallel light rays onto the focal point.
Show 1 more exampleShow fewer examples
Tiān天
wén文
wàng望
yuǎn远
jìng镜
zhōng中
de的
jù聚
guāng光
jìng镜
tōng通
cháng常
shì是
āo凹
miàn面
jìng镜
。
The condenser in astronomical telescopes is usually a concave mirror.