| 词汇 | example_english_light-meter |
| 释义 | Examples of light meterThese 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. 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. The lightmeter used a dual concentric segmented silicon photo diode to provide spot or centerweighted readings. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The camera itself needed no batteries, though the prism lightmeter did (and of course the motor drive if added). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Apart from the obvious advantage of independence from a lightmeter, the sunny 16 rule can also aid in achieving correct exposure of difficult subjects. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Intensity (or quality) of light is difficult to measure without a lightmeter. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This allows a lightmeter to be used to estimate an exposure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. On the y-axis of the graph is the luminance obtained by moving a lightmeter over the grating perpendicular to the orientation of the grating. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These settings are coupled with the lightmeter, but the exposure time must be manually implemented using a cable release. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A selenium-cell powered lightmeter was cheaper in production and did not need a battery. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The release button activated the lightmeter, when slightly depressed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The visual system is not very good at being a physical lightmeter, but that is not its purpose. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In photography, a lightmeter is often used to determine the proper exposure for a photograph. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It offered three shutter speeds and aperture values had to be set by a separate lightmeter, by guesswork or by following the coarse exposure guide on the film package. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The camera had no lightmeter. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The game displays a lightmeter that reflects how visible the player character is to enemies, and night vision and thermal vision goggles to help the player navigate in darkness. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Two light meters were used in each plot, one placed at ground level between the cassava and pepper rows and one at the top of both crops. Other general purpose light power measuring devices are usually called radiometers, photometers, laser power meters, light meters or lux meters. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are other types of specialized photographic light meters. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Light meters are also used in the fields of cinematography and scenic design, in order to determine the optimum light level for a scene. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Batteries that only have to power light meters are often very small and can last a long time. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Selenium and silicon light meters use sensors that are photovoltaic: they "generate" a voltage proportional to light exposure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The most common use of such light meters is measuring the exposure value for photography. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This phenomenon was used in the design of light meters and similar devices. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. By the 1960s, however, low-cost electronic components were commonplace and cameras equipped with light meters and automatic exposure systems became increasingly widespread. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Built-in light meters and electronic shutters combined with microelectronics to make exposure control simpler and faster. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Its constant voltage output and long shelf life gave it a niche use for camera light meters and hearing aids. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To calibrate light meters, whether in a camera or hand held, the 18% gray card was conceived. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It had already begun during the 1960s with built-in light meters, but accelerated dramatically in the 1970s. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Originally, its main business was to provide technical equipment for cinemas: loudspeakers, film projectors and light meters. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some photodetector applications in which photoresistors are often used include camera light meters, street lights, clock radios, and infrared detectors. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are, however, significant obstacles to overcome in order to achieve a successful implementation of light meters in lighting systems, of which user acceptance is by far the most formidable. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is therefore recommended to use light meters in lighting systems, especially in rooms where one can not expect users to pay attention to manually switching off the lights. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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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