Light measuring system, applicable light measuring method thereof and smart phone

Abstract

The invention discloses a light measuring system which is arranged in a smart phone. The light measuring system comprises an ambient light sensor and a processing module. The ambient light sensor which comprises a lens and a photoelectric sensor acquires ambient light and outputs ambient light information, wherein the lens is a spheroid scatterer. The input end of the processing module is in circuit connection with the ambient light sensor, and the processing module receives acquired light information output by the ambient light sensor and obtains corresponding photographic parameters according to the acquired light information and outputs photographic parameters. The light measuring system is arranged in the smart phone, the light intensity of the ambient can be measured at any time. Photographic parameters such as apertures, shutters and photo-sensibility are obtained through calculation and can be transmitted to the other mobile terminal through the wireless technology, the photographic parameters are displayed to a photographer through a mobile terminal, and the photographer sets corresponding parameters of a camera according to the transmitted information and obtains accurate exposure of pictures.

Description

technical field [0001] The invention relates to a smart phone, in particular to a light metering system, an applicable light metering method and the smart phone. Background technique [0002] A light meter is an instrument that measures the surface brightness of an object or the luminous intensity of a luminous body. During the shooting process, the light meter can accurately provide the illuminance or brightness of the subject through various known conditions and the objective conditions that change instantaneously, and provide the photographer with the combined parameters of the aperture and shutter used when shooting. A light meter is an essential tool in professional photography. [0003] The light meter uses the photosensitive element as the main component, and obtains different electrical signals from different light intensities, and finally obtains the objective light intensity value through calculation. [0004] As for cameras, cameras with a medium format or above...

AI Technical Summary

Problems solved by technology

[0008] The biggest disadvantage of this solution: the existing light meter must use related special sensors, which is costly, and the general light meter is relatively large in size and inconvenient to carry

[0009] 2) In-camera light metering system is relatively widely used: Compared with the light meter, the internal light metering system has the following disadvantages: the sensitivity and more accurate light metering performance are not high enough

The internal light metering system can only measure reflected light, not incident light

In addition, in still life photography, the camera is generally fixed on a tripod, and it will be very inconvenient to move the camera to measure light in this situation

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