negative lens वाक्य
उदाहरण वाक्य
मोबाइल
- The album is like looking at the world through negative lenses.
- Always being negative, looking at the world through a negative lens.
- Chameleon eyes feature a negative lens, meaning that the lens is concave.
- In science textbooks, positive lenses are usually diagrammed as convex on both sides; negative lenses are usually diagrammed as concave on both sides.
- When a plane wave-front illuminates a negative lens, it is expanded into a wave which appears to diverge from the focal point of the lens.
- The combination of a negative lens and a positive cornea in the chameleon eye allow for accurate focusing by corneal accommodation . makes the chameleon the only vertebrate to focus monocularly.
- With such a known positive lens, you can stack a weaker negative ( nearsighted correction ) lens next to it and from the combined focal length calculate the diopters of the negative lens.
- While the negative lens " L " 2 moves from the front to the back of the lens, the lens " L " 1 moves forward and then backward in a parabolic arc.
- When the plane wave is incident at a non-normal angle at the time of recording, the pattern formed is more complex but still acts as a negative lens provided it is illuminated at the original angle.
- In 1883 or 1884 New Zealand photographer Alexander McKay discovered he could create a much more manageable long-focus lens by combining a shorter focal length telescope objective lens with negative lenses and other optical parts from opera glasses to modify the light cone.
- An investor's lingering perceptions of a dire market environment may be causing them to view investment opportunities through an overly negative lens, making it less appealing to consider taking on investment risk, no matter how small the returns on perceived " safe " investments.
- The telephoto lens configuration combines positive and negative lens groups with the positive at the front, so as to reduce the back focal distance of the lens ( the distance between the back of the lens and the image plane ) to a figure shorter than the focal length.
- The inverted telephoto configuration does the reverse, employing one or more negative lens groups at the front to increase the back focal distance of the lens & ndash; possibly to a figure greater than the focal length & ndash; in order to allow for additional optical or mechanical parts to fit behind the lens.
- In most cases, two thin lenses are combined, one of which has just so strong a positive aberration ( " under-correction, " vide supra ) as the other a negative; the first must be a positive lens and the second a negative lens; the powers, however : may differ, so that the desired effect of the lens is maintained.
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