Definition of lens in English:

lens

noun lɛnzlɛnz

1A piece of glass or other transparent material with curved sides for concentrating or dispersing light rays, used singly (as in a magnifying glass) or with other lenses (as in a telescope).
透镜，镜片
Example sentencesExamples
- The lens that picks up the light from the focal point is called the eyepiece lens.
- I have two pairs of glasses with different coloured lenses for different light conditions.
- His novel idea was to use both mirrors and lenses in his telescope.
- But what appeared to be a minute particle of dirt on a telescope lens was in fact a rare daylight view of the planet Mercury crossing in front of the Sun.
- His first telescope was made from available lenses and gave a magnification of about four times.
- Some of the other options include glass lenses and plastic lenses.
- Light flashed across the round lenses of his glasses.
- If you wear glasses have your reading lens fitted to your polarized ones.
- It could have been a bit of dirt on the lens of the telescope but it was really clear through the viewer.
- Galileo's telescope was similar to a pair of opera glasses in that it used an arrangement of glass lenses to magnify objects.
- Galileo's telescope had a convex object lens but a concave eye-piece.
- An air bubble in water that is shaped like a normal glass lens would have roughly the opposite effect of the glass lens.
- Isaac Newton proposed using a curved mirror, rather than a lens, to magnify the heavens, and reflecting telescopes are nowadays the norm.
- He was particularly interested in the ideas of improving telescope design by using lenses made up of two different types of glass.
- Most conventional lenses are made of glass, polymer, or other transparent solid materials.
- Because of the extreme curve of the glasses, the lenses are hard to fit to a frame - and that makes them costly.
- These foreground clusters act as lenses that magnify the light of the protogalaxies and allow us to detect and study them.
- In 1935, Zeiss found a coating of magnesium fluoride on glass lenses dramatically improved image quality.
- Using his experimental abilities, he ground lenses and assembled a telescope.
- Each cluster acts as a magnifying lens, greatly brightening a quasar's light.
1. 1.1 The light-gathering device of a camera, typically containing a group of compound lenses.
  （照相机的）镜头
  Example sentencesExamples
  With that he tosses the paper across, and goes back to his camera lenses and his camera lens cloth.
  Camera lenses, no matter how expensive, are nowhere near as acutely sensitive as the human eye, nor does the camera see colour in exactly the same way.
  The lens of the eye works much like the lens of a camera.
  Of course the best cameras and lenses can produce images of superior technical quality to gear that is less capable.
  If possible, bring a camera with interchangeable lenses.
  All mating trials were video-recorded by using cameras with macrozoom lenses to allow detailed analysis of the mating sequence.
  Controlled by software, tiny motors on the lens assembly and spherical camera casing allow the lens to pan and track objects.
  Photography is now about computers as much as it is about cameras and lenses.
  The solution to this is to get right next to the glass, so that your camera lens is flush with the glass surface.
  Some of these were made not simply without lenses but without a camera at all - rather by the direct manipulation of photographic plates.
  Scott also plays with lenses, camera speed and some excellent special effects to heighten the impact of the harrowing fight scenes.
  Stuff like this makes me want to get a fish-eye lens for my digital camera.
  We were looking through our camera lenses, and we could see them waving to us and they kept shooting at us.
  They proceeded to display cases located at the store's front and stole 18 digital and film cameras along with eight camera lenses.
  The Standard lens is actually one of the most neglected lenses in your camera bag.
  Zooming the camera lens even further, she saw figures off to the right, walking in front of one of the gray tents.
  But once the officers checked out the tape over the camera lenses, they decided to rewind and review the videos anyway.
  Being able to move the camera lens for focusing and zooming would allow picture phones to take clear telephoto shots and focus on objects close-up.
  Store cameras and lenses in padded cases and, in very damp environments, in locking plastic bags or even underwater housings.
  If your subject is nearby, you can often isolate details with a normal lens or moderate telephoto.
2. 1.2Anatomy
  short for crystalline lens
  Example sentencesExamples
  The posterior chamber is found behind the iris and in front of the lens and ciliary bodies.
  The eye fluid nourishes the bloodless lens and cornea.
  The dioptric system includes the cornea, the lens, the aqueous humor within the anterior eye chamber, and the vitreous body.
  With age, your eyes are less able to produce tears, your retinas thin and your lenses gradually turn yellow and become less clear.
  The vitreous humor is between the back of the lens and the retina.
3. 1.3
  short for contact lens
4. 1.4Physics An object or device which focuses or otherwise modifies the direction of movement of light, sound, electrons, etc.
  〔物理〕（聚集光、声、电子等或改变其方向的）透镜
  Example sentencesExamples
  Designed much like a compound microscope, the electron microscope uses a beam of electrons focused through magnetic lenses.
  Negative refraction implies that a converging lens made from negative-index material should have a concave surface rather than a convex one.
  Polycarbonate is a tough, transparent thermoplastic that's used to make thin, light lenses.
  The first and second lenses operate jointly to concentrate and collimate the incident light beam.
  In order to concentrate more light at the aperture, they placed a glass ball lens on the upper side of the tip prior to the assembly step.

Derivatives

lensed

adjective

From this, they can then make predictions about the relative brightness of the various lensed images.
Example sentencesExamples
- A US and Netherlands-led team of astronomers using the Hubble Space Telescope have identified 19 new examples of gravitationally lensed galaxies.
- The group is currently developing a hybrid lensed fiber bundle and apertured cantilever array.
- Views into the three numbered motel rooms through lensed eyeholes presented a similar mix of persistence and decay, presence and abandonment.
- Many applications use only the forward output of a lensed LED.

lensless

adjective

Hudec uses a lensless camera called a zone plate pinhole, which allows her to render life the way she sees it - fleeting, sensual and fragile.
Example sentencesExamples
- In order to avoid the distortions of reality that lenses produce, Strindberg often used a lensless pinhole camera of his own construction.
- My experience with lensless imaging as my primary creative medium has shown me the pinhole camera's tremendous versatility and essential mystery.
- Using a lensless x-ray microscope, researchers at the University of Illinois at Urbana-Champaign imaged the interior of crystals in 3-D, ranging from 0.1 m to a few microns.
- But ‘partial’ eyes turn out to be common in nature, and biologists can trace eye evolution from the lensless flatworm eyespot to the complex geometry of vertebrate eyes.

Origin

Late 17th century: from Latin, 'lentil' (because of the similarity in shape).

Lens means ‘lentil’ (ME, from the same word) in Latin. The word was used for a lens because it is the same shape.

Rhymes

Benz, cleanse, Fens, gens

Definition of lens in US English:

lens

nounlenzlɛnz

1A piece of glass or other transparent substance with curved sides for concentrating or dispersing light rays, used singly (as in a magnifying glass) or with other lenses (as in a telescope).
透镜，镜片
Example sentencesExamples
- An air bubble in water that is shaped like a normal glass lens would have roughly the opposite effect of the glass lens.
- Light flashed across the round lenses of his glasses.
- He was particularly interested in the ideas of improving telescope design by using lenses made up of two different types of glass.
- Galileo's telescope was similar to a pair of opera glasses in that it used an arrangement of glass lenses to magnify objects.
- In 1935, Zeiss found a coating of magnesium fluoride on glass lenses dramatically improved image quality.
- Because of the extreme curve of the glasses, the lenses are hard to fit to a frame - and that makes them costly.
- But what appeared to be a minute particle of dirt on a telescope lens was in fact a rare daylight view of the planet Mercury crossing in front of the Sun.
- His novel idea was to use both mirrors and lenses in his telescope.
- His first telescope was made from available lenses and gave a magnification of about four times.
- The lens that picks up the light from the focal point is called the eyepiece lens.
- Galileo's telescope had a convex object lens but a concave eye-piece.
- It could have been a bit of dirt on the lens of the telescope but it was really clear through the viewer.
- Most conventional lenses are made of glass, polymer, or other transparent solid materials.
- Each cluster acts as a magnifying lens, greatly brightening a quasar's light.
- Some of the other options include glass lenses and plastic lenses.
- Using his experimental abilities, he ground lenses and assembled a telescope.
- I have two pairs of glasses with different coloured lenses for different light conditions.
- Isaac Newton proposed using a curved mirror, rather than a lens, to magnify the heavens, and reflecting telescopes are nowadays the norm.
- These foreground clusters act as lenses that magnify the light of the protogalaxies and allow us to detect and study them.
- If you wear glasses have your reading lens fitted to your polarized ones.
1. 1.1 The light-gathering device of a camera, typically containing a group of compound lenses.
  （照相机的）镜头
  Example sentencesExamples
  Scott also plays with lenses, camera speed and some excellent special effects to heighten the impact of the harrowing fight scenes.
  All mating trials were video-recorded by using cameras with macrozoom lenses to allow detailed analysis of the mating sequence.
  Camera lenses, no matter how expensive, are nowhere near as acutely sensitive as the human eye, nor does the camera see colour in exactly the same way.
  They proceeded to display cases located at the store's front and stole 18 digital and film cameras along with eight camera lenses.
  If possible, bring a camera with interchangeable lenses.
  With that he tosses the paper across, and goes back to his camera lenses and his camera lens cloth.
  Of course the best cameras and lenses can produce images of superior technical quality to gear that is less capable.
  Store cameras and lenses in padded cases and, in very damp environments, in locking plastic bags or even underwater housings.
  If your subject is nearby, you can often isolate details with a normal lens or moderate telephoto.
  Some of these were made not simply without lenses but without a camera at all - rather by the direct manipulation of photographic plates.
  Zooming the camera lens even further, she saw figures off to the right, walking in front of one of the gray tents.
  Being able to move the camera lens for focusing and zooming would allow picture phones to take clear telephoto shots and focus on objects close-up.
  Stuff like this makes me want to get a fish-eye lens for my digital camera.
  The lens of the eye works much like the lens of a camera.
  But once the officers checked out the tape over the camera lenses, they decided to rewind and review the videos anyway.
  The solution to this is to get right next to the glass, so that your camera lens is flush with the glass surface.
  Controlled by software, tiny motors on the lens assembly and spherical camera casing allow the lens to pan and track objects.
  Photography is now about computers as much as it is about cameras and lenses.
  The Standard lens is actually one of the most neglected lenses in your camera bag.
  We were looking through our camera lenses, and we could see them waving to us and they kept shooting at us.
2. 1.2Anatomy
  short for crystalline lens
  Example sentencesExamples
  With age, your eyes are less able to produce tears, your retinas thin and your lenses gradually turn yellow and become less clear.
  The vitreous humor is between the back of the lens and the retina.
  The dioptric system includes the cornea, the lens, the aqueous humor within the anterior eye chamber, and the vitreous body.
  The posterior chamber is found behind the iris and in front of the lens and ciliary bodies.
  The eye fluid nourishes the bloodless lens and cornea.
3. 1.3
  short for contact lens
4. 1.4Physics An object or device which focuses or otherwise modifies the direction of movement of light, sound, electrons, etc.
  〔物理〕（聚集光、声、电子等或改变其方向的）透镜
  Example sentencesExamples
  In order to concentrate more light at the aperture, they placed a glass ball lens on the upper side of the tip prior to the assembly step.
  Negative refraction implies that a converging lens made from negative-index material should have a concave surface rather than a convex one.
  The first and second lenses operate jointly to concentrate and collimate the incident light beam.
  Polycarbonate is a tough, transparent thermoplastic that's used to make thin, light lenses.
  Designed much like a compound microscope, the electron microscope uses a beam of electrons focused through magnetic lenses.

Origin

Late 17th century: from Latin, ‘lentil’ (because of the similarity in shape).

单词	lens
释义	Definition of lens in English: lens noun lɛnzlɛnz 1A piece of glass or other transparent material with curved sides for concentrating or dispersing light rays, used singly (as in a magnifying glass) or with other lenses (as in a telescope). 透镜，镜片 Example sentencesExamples The lens that picks up the light from the focal point is called the eyepiece lens. I have two pairs of glasses with different coloured lenses for different light conditions. His novel idea was to use both mirrors and lenses in his telescope. But what appeared to be a minute particle of dirt on a telescope lens was in fact a rare daylight view of the planet Mercury crossing in front of the Sun. His first telescope was made from available lenses and gave a magnification of about four times. Some of the other options include glass lenses and plastic lenses. Light flashed across the round lenses of his glasses. If you wear glasses have your reading lens fitted to your polarized ones. It could have been a bit of dirt on the lens of the telescope but it was really clear through the viewer. Galileo's telescope was similar to a pair of opera glasses in that it used an arrangement of glass lenses to magnify objects. Galileo's telescope had a convex object lens but a concave eye-piece. An air bubble in water that is shaped like a normal glass lens would have roughly the opposite effect of the glass lens. Isaac Newton proposed using a curved mirror, rather than a lens, to magnify the heavens, and reflecting telescopes are nowadays the norm. He was particularly interested in the ideas of improving telescope design by using lenses made up of two different types of glass. Most conventional lenses are made of glass, polymer, or other transparent solid materials. Because of the extreme curve of the glasses, the lenses are hard to fit to a frame - and that makes them costly. These foreground clusters act as lenses that magnify the light of the protogalaxies and allow us to detect and study them. In 1935, Zeiss found a coating of magnesium fluoride on glass lenses dramatically improved image quality. Using his experimental abilities, he ground lenses and assembled a telescope. Each cluster acts as a magnifying lens, greatly brightening a quasar's light. 1.1 The light-gathering device of a camera, typically containing a group of compound lenses. （照相机的）镜头 Example sentencesExamples With that he tosses the paper across, and goes back to his camera lenses and his camera lens cloth. Camera lenses, no matter how expensive, are nowhere near as acutely sensitive as the human eye, nor does the camera see colour in exactly the same way. The lens of the eye works much like the lens of a camera. Of course the best cameras and lenses can produce images of superior technical quality to gear that is less capable. If possible, bring a camera with interchangeable lenses. All mating trials were video-recorded by using cameras with macrozoom lenses to allow detailed analysis of the mating sequence. Controlled by software, tiny motors on the lens assembly and spherical camera casing allow the lens to pan and track objects. Photography is now about computers as much as it is about cameras and lenses. The solution to this is to get right next to the glass, so that your camera lens is flush with the glass surface. Some of these were made not simply without lenses but without a camera at all - rather by the direct manipulation of photographic plates. Scott also plays with lenses, camera speed and some excellent special effects to heighten the impact of the harrowing fight scenes. Stuff like this makes me want to get a fish-eye lens for my digital camera. We were looking through our camera lenses, and we could see them waving to us and they kept shooting at us. They proceeded to display cases located at the store's front and stole 18 digital and film cameras along with eight camera lenses. The Standard lens is actually one of the most neglected lenses in your camera bag. Zooming the camera lens even further, she saw figures off to the right, walking in front of one of the gray tents. But once the officers checked out the tape over the camera lenses, they decided to rewind and review the videos anyway. Being able to move the camera lens for focusing and zooming would allow picture phones to take clear telephoto shots and focus on objects close-up. Store cameras and lenses in padded cases and, in very damp environments, in locking plastic bags or even underwater housings. If your subject is nearby, you can often isolate details with a normal lens or moderate telephoto. 1.2Anatomy short for crystalline lens Example sentencesExamples The posterior chamber is found behind the iris and in front of the lens and ciliary bodies. The eye fluid nourishes the bloodless lens and cornea. The dioptric system includes the cornea, the lens, the aqueous humor within the anterior eye chamber, and the vitreous body. With age, your eyes are less able to produce tears, your retinas thin and your lenses gradually turn yellow and become less clear. The vitreous humor is between the back of the lens and the retina. 1.3 short for contact lens 1.4Physics An object or device which focuses or otherwise modifies the direction of movement of light, sound, electrons, etc. 〔物理〕（聚集光、声、电子等或改变其方向的）透镜 Example sentencesExamples Designed much like a compound microscope, the electron microscope uses a beam of electrons focused through magnetic lenses. Negative refraction implies that a converging lens made from negative-index material should have a concave surface rather than a convex one. Polycarbonate is a tough, transparent thermoplastic that's used to make thin, light lenses. The first and second lenses operate jointly to concentrate and collimate the incident light beam. In order to concentrate more light at the aperture, they placed a glass ball lens on the upper side of the tip prior to the assembly step. Derivatives lensed adjective From this, they can then make predictions about the relative brightness of the various lensed images. Example sentencesExamples A US and Netherlands-led team of astronomers using the Hubble Space Telescope have identified 19 new examples of gravitationally lensed galaxies. The group is currently developing a hybrid lensed fiber bundle and apertured cantilever array. Views into the three numbered motel rooms through lensed eyeholes presented a similar mix of persistence and decay, presence and abandonment. Many applications use only the forward output of a lensed LED. lensless adjective Hudec uses a lensless camera called a zone plate pinhole, which allows her to render life the way she sees it - fleeting, sensual and fragile. Example sentencesExamples In order to avoid the distortions of reality that lenses produce, Strindberg often used a lensless pinhole camera of his own construction. My experience with lensless imaging as my primary creative medium has shown me the pinhole camera's tremendous versatility and essential mystery. Using a lensless x-ray microscope, researchers at the University of Illinois at Urbana-Champaign imaged the interior of crystals in 3-D, ranging from 0.1 m to a few microns. But ‘partial’ eyes turn out to be common in nature, and biologists can trace eye evolution from the lensless flatworm eyespot to the complex geometry of vertebrate eyes. Origin Late 17th century: from Latin, 'lentil' (because of the similarity in shape). Lens means ‘lentil’ (ME, from the same word) in Latin. The word was used for a lens because it is the same shape. Rhymes Benz, cleanse, Fens, gens Definition of lens in US English: lens nounlenzlɛnz 1A piece of glass or other transparent substance with curved sides for concentrating or dispersing light rays, used singly (as in a magnifying glass) or with other lenses (as in a telescope). 透镜，镜片 Example sentencesExamples An air bubble in water that is shaped like a normal glass lens would have roughly the opposite effect of the glass lens. Light flashed across the round lenses of his glasses. He was particularly interested in the ideas of improving telescope design by using lenses made up of two different types of glass. Galileo's telescope was similar to a pair of opera glasses in that it used an arrangement of glass lenses to magnify objects. In 1935, Zeiss found a coating of magnesium fluoride on glass lenses dramatically improved image quality. Because of the extreme curve of the glasses, the lenses are hard to fit to a frame - and that makes them costly. But what appeared to be a minute particle of dirt on a telescope lens was in fact a rare daylight view of the planet Mercury crossing in front of the Sun. His novel idea was to use both mirrors and lenses in his telescope. His first telescope was made from available lenses and gave a magnification of about four times. The lens that picks up the light from the focal point is called the eyepiece lens. Galileo's telescope had a convex object lens but a concave eye-piece. It could have been a bit of dirt on the lens of the telescope but it was really clear through the viewer. Most conventional lenses are made of glass, polymer, or other transparent solid materials. Each cluster acts as a magnifying lens, greatly brightening a quasar's light. Some of the other options include glass lenses and plastic lenses. Using his experimental abilities, he ground lenses and assembled a telescope. I have two pairs of glasses with different coloured lenses for different light conditions. Isaac Newton proposed using a curved mirror, rather than a lens, to magnify the heavens, and reflecting telescopes are nowadays the norm. These foreground clusters act as lenses that magnify the light of the protogalaxies and allow us to detect and study them. If you wear glasses have your reading lens fitted to your polarized ones. 1.1 The light-gathering device of a camera, typically containing a group of compound lenses. （照相机的）镜头 Example sentencesExamples Scott also plays with lenses, camera speed and some excellent special effects to heighten the impact of the harrowing fight scenes. All mating trials were video-recorded by using cameras with macrozoom lenses to allow detailed analysis of the mating sequence. Camera lenses, no matter how expensive, are nowhere near as acutely sensitive as the human eye, nor does the camera see colour in exactly the same way. They proceeded to display cases located at the store's front and stole 18 digital and film cameras along with eight camera lenses. If possible, bring a camera with interchangeable lenses. With that he tosses the paper across, and goes back to his camera lenses and his camera lens cloth. Of course the best cameras and lenses can produce images of superior technical quality to gear that is less capable. Store cameras and lenses in padded cases and, in very damp environments, in locking plastic bags or even underwater housings. If your subject is nearby, you can often isolate details with a normal lens or moderate telephoto. Some of these were made not simply without lenses but without a camera at all - rather by the direct manipulation of photographic plates. Zooming the camera lens even further, she saw figures off to the right, walking in front of one of the gray tents. Being able to move the camera lens for focusing and zooming would allow picture phones to take clear telephoto shots and focus on objects close-up. Stuff like this makes me want to get a fish-eye lens for my digital camera. The lens of the eye works much like the lens of a camera. But once the officers checked out the tape over the camera lenses, they decided to rewind and review the videos anyway. The solution to this is to get right next to the glass, so that your camera lens is flush with the glass surface. Controlled by software, tiny motors on the lens assembly and spherical camera casing allow the lens to pan and track objects. Photography is now about computers as much as it is about cameras and lenses. The Standard lens is actually one of the most neglected lenses in your camera bag. We were looking through our camera lenses, and we could see them waving to us and they kept shooting at us. 1.2Anatomy short for crystalline lens Example sentencesExamples With age, your eyes are less able to produce tears, your retinas thin and your lenses gradually turn yellow and become less clear. The vitreous humor is between the back of the lens and the retina. The dioptric system includes the cornea, the lens, the aqueous humor within the anterior eye chamber, and the vitreous body. The posterior chamber is found behind the iris and in front of the lens and ciliary bodies. The eye fluid nourishes the bloodless lens and cornea. 1.3 short for contact lens 1.4Physics An object or device which focuses or otherwise modifies the direction of movement of light, sound, electrons, etc. 〔物理〕（聚集光、声、电子等或改变其方向的）透镜 Example sentencesExamples In order to concentrate more light at the aperture, they placed a glass ball lens on the upper side of the tip prior to the assembly step. Negative refraction implies that a converging lens made from negative-index material should have a concave surface rather than a convex one. The first and second lenses operate jointly to concentrate and collimate the incident light beam. Polycarbonate is a tough, transparent thermoplastic that's used to make thin, light lenses. Designed much like a compound microscope, the electron microscope uses a beam of electrons focused through magnetic lenses. Origin Late 17th century: from Latin, ‘lentil’ (because of the similarity in shape).
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