Definitions for virtual image
vir·tu·al im·age

Princeton's WordNetRate this definition:0.0 / 0 votes

1. virtual imagenoun

   a reflected optical image (as seen in a plane mirror)

WikipediaRate this definition:0.0 / 0 votes

1. Virtual image

   In optics, an image is defined as the collection of focus points of light rays coming from an object. A real image is the collection of focus points made by converging rays, while a virtual image is the collection of focus points made by extensions of diverging rays. In other words, a virtual image is found by tracing real rays that emerge from an optical device (lens, mirror, or some combination) backward to perceived or apparent origins of ray divergences. In diagrams of optical systems, virtual rays are conventionally represented by dotted lines, to contrast with the solid lines of real rays. Because the rays never really converge, a virtual image cannot be projected onto a screen. In contrast, a real image can be projected on the screen as it is formed by rays that converge on a real location. A real image can be projected onto a diffusely reflecting screen so people can see the image (the image on the screen plays as an object to be imaged by human eyes). A plane mirror forms a virtual image positioned behind the mirror. Although the rays of light seem to come from behind the mirror, light from the source only exists in front of the mirror. The image in a plane mirror is not magnified (that is, the image is the same size as the object) and appears to be as far behind the mirror as the object is in front of the mirror. A diverging lens (one that is thicker at the edges than the middle) or a convex mirror forms a virtual image. Such an image is reduced in size when compared to the original object. A converging lens (one that is thicker in the middle than at the edges) or a concave mirror is also capable of producing a virtual image if the object is within the focal length. Such an image will be magnified. In contrast, an object placed in front of a converging lens or concave mirror at a position beyond the focal length produces a real image. Such an image will be magnified if the position of the object is within twice the focal length, or else the image will be reduced if the object is further than twice the focal length. It can be obtained on screen....

ChatGPTRate this definition:0.0 / 0 votes

1. virtual image

   A virtual image is an optical image formed by the refraction or reflection of light rays, which appear to come from a certain point or location but does not actually exist. It is perceived by the eye or a sensor as being behind a reflective or refractive surface, but it cannot be projected on a screen since it does not have a physical presence. This is often seen in devices like microscopes, telescopes, and mirrors.

WikidataRate this definition:4.5 / 2 votes

1. Virtual image

   In optics, a virtual image is an image in which the outgoing rays from a point on the object always diverge. It will appear to converge in or behind the optical device. A simple example is a flat mirror where the image of oneself is perceived at twice the distance from oneself to the mirror. That is, if one is half a meter in front of the mirror, one's image will appear to be at a distance of 1 meter away. Because the rays never really converge, one cannot project a virtual image. Note that it cannot be obtained on a screen. In contrast, a real image is an image in which the outgoing rays from a point on the object pass through a single point. It is easiest to observe real images when projected on an opaque screen. ⁕When we look through a diverging lens or look into a convex mirror, what we see is a virtual image. However, if we observe a focused image on a screen inside or behind a converging lens or in front of a concave mirror what we see on the screen is a real image because the image really is at the screen's location. If we position ourselves so that the screen is directly between ourselves and the optical device, we can remove the screen and still observe the image. A converging lens and concave mirror are also capable of producing virtual images if the object is within the focal length.

Matched Categories

1. • Reflection

How to pronounce virtual image?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say virtual image in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of virtual image in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of virtual image in Pythagorean Numerology is: 3

Examples of virtual image in a Sentence

1. Achim Anscheidt:

   When you're sitting inside the car, yes it's a pure performance-driven interior, but something neat that's happening is the main display that is in front of you is a 180 degree virtual image that really is put together from the three cameras that you see put around the car. And that's the most important aspect of racing nowadays, especially when you look at a circuit like Le Mans, you need to see what's going on around the car, what's going on behind you in order to avoid over-taking accidents.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=virtual image
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Virtual_Image
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=virtual image