| 词汇 | light-meter |
| 释义 | light meter noun[ C ] uk /ˈlaɪt ˌmiː.tər/ us /ˈlaɪt ˌmiː.t̬ɚ/ a device for measuring how much light there is, especially when taking a photograph曝光表，测光仪 ThomasVogel/E+/GettyImages Measuring, weighing, & counting devices -scopic adding machine detector dipstick dosimeter fitness tracker gage gamma counter gauge gradation indicator manometer micrometer probe scope smart meter spirit level straight edge theodolite tracker Examples of light meterlight meter The umpires determine whether play is possible by carrying a photographer's lightmeter. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There are two general types of light meters: reflected-light and incident-light. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Dreyer disliked light meters and preferred to deduce the correct exposure at each location by eye. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As the rule is based on incident light, rather than reflected light as with most camera light meters, very bright or very dark subjects are compensated for. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The intensity of the in-cage illumination was 11-28 lux, depending on orientation of the lightmeter. Relative transmittance of the goggles was determined by placing the goggles in front of a light source and measuring the intensity of the transmitted light with a photographic lightmeter. There are problems with measurement by means of a lightmeter. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Where will a lightmeter be placed? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Manually setting a camera to expose the film properly takes two steps, even after taking a lightmeter reading. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. On the x-axis of the graph is the distance the lightmeter moved. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some of the higher-end cameras used this notch to determine the correct exposure, or to set the lightmeter, if so equipped. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A lightmeter can automatically calculate the ratio of key plus fill to fill alone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Like several of the earlier versions it did feature a built in lightmeter. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It had a built-in microprocessor computer programmed to automatically analyze different segments of the lightmeter field of view and select a corrected exposure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The lightmeter uses a dual concentric segmented silicon photodiode to provide spot or centerweighted readings. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of light meter These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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