Stand that enables a mobile device to read barcodes in presentation mode
摘要
說(shuō)明書(shū)
The lens assembly 528 may receive light reflected from objects within the camera field of view 540. The camera field of view 540 may have an angular size, which may be defined as the angle at which the camera field of view 540 spreads with respect to distance from the lens assembly 528. The lens assembly 528 may have a camera aperture size measured as an f-number. This is the ratio of the focal length of the lens assembly 528 to the diameter of the entrance pupil, which in this context refers to the lens aperture (an aperture stop or an inherent aperture of the lens component defining the aperture) as viewed through the front of the lens assembly 528.
The image sensor 530 may be coupled to system-on-chip circuits 592 which include an output module 594 and an auto-white balance module 596. In one embodiment, the output module 594 controls the operation of the image sensor 530 (e.g., exposure, gain, and coupling of pixels to analog-to-digital (A/D) converters for image read out), formats the digital intensity values of each pixel of the image sensor 530 for color image output, and makes the color image output available for writing to the image data buffer 582.
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