A lighting control circuit (1) controls lighting and extinguishing a plurality of light-emitting elements (D11 to D19, D21 to D29, and D31 to D39). The lighting control circuit (1) has: a first scanning circuit (10) that sequentially scans the light-emitting elements by a predetermined first unit number at a time; a second scanning circuit (20) that sequentially scans the light-emitting elements being scanned by the first scanning circuit (10) by a second unit number at a time, which is lower than the first unit number; and a control circuit (30) that controls lighting and extinguishing the individual light-emitting elements being scanned by the first and second scanning circuits (10, 20).

A scanner that reads optical luminance at a field of view (FoV) includes an illuminator that provides light beams to a surface that may be located from a near field to a far field of the FoV. The illuminator can provide optical luminance that has an irradiance, which is uniform or within a certain range from the near field FoV to the far field FoV. The irradiance is achieved by adjusting the location of light emitting components and adjusting the power.

An array of pixels of a solid-state imaging sensor having a rolling shutter is sequentially exposed to capture images from an illuminated target over successive frames for image capture by an imaging reader. The target is illuminated at a peak output power level for a fractional time period of a frame, and is not illuminated for at least a portion of a remaining time period of the frame for increased energy efficiency. Only a sub-array of the pixels is exposed during the fractional time period in which the target is being illuminated at the first output power level.

An array of pixels of a solid-state imaging sensor having a rolling shutter is sequentially exposed to capture images from an illuminated target over successive frames for image capture by an imaging reader. The target is illuminated at a peak output power level for a fractional time period of a frame, and is not illuminated for at least a portion of a remaining time period of the frame for increased energy efficiency. Only a sub-array of the pixels is exposed during the fractional time period in which the target is being illuminated at the first output power level.

A compact and lighter image capturing device of increased spatial resolution (relative to the heads up scanners) and having a higher speed operates as a contact type document scanner. This scanner includes a static 2D array of lenses optically coupled to a static 2D array of color digital image sensors. A static light source dimensioned to match the surface of the document ensures a uniform illumination of the entire document. The entire document or any desired portions of the document can be scanned and saved without any mechanical movements. This scanner also works in a video-camera mode and a dedicated display is used to pre-proof and visualize live any image portions or the entire document before the image of the document is saved in a dedicated memory. The color balance and the position of the document and can be thus adjusted prior to scanning it by using its live image. An image segmentation mode is also available, where the display has a touch screen function coupled to the scanner that is used to select and or mask only some areas of the document that need to be scanned individually. This requires customized changes in the illumination and or image capturing. In one mode of operation, the scanner can be also fully used independently from a computer.

A scanner that reads optical luminance at a field of view (FoV) includes an illuminator that provides light beams to a surface that may be located from a near field to a far field of the FoV. The illuminator can provide optical luminance that has an irradiance, which is uniform or within a certain range from the near field FoV to the far field FoV. The irradiance is achieved by adjusting the location of light emitting components and adjusting the power.

An illumination device includes a first light source and a second light source. The first light source irradiates an irradiation region with a first light in a first direction. The second light source is disposed opposite to the first light source to irradiate the irradiation region with a second light in a second direction. The first light is overlapped with the second light in the irradiation region. The first light has a wavelength different from the second light.