Image pickup auxiliary light source device and digital camera provided with same

摘要

An illumination device has LEDs, EDLCs for LED use, and a non-volatile memory for recording the difference between the color temperature and/or the illumination spectrum of LEDs and Xe gas. The unused charge in an EDLC is recovered by a power cell. Illumination strength is changed in accordance with the image pickup distance of a DSC. Illumination strength is changed in accordance with exposure time so that a fill-in ratio is maintained. The illumination strength of LEDs is gradually increased and then at the peak strength is suddenly reduced. The mixture ratio of light from LEDs having different light distributions is changed due to focal distance, and then an incidence angle is changed. A group of LEDs is disposed in a ring shape on the front of a lens. During continuous capture, LEDs are caused to illuminate continuously or synchronously.

主权项

1. An image pickup auxiliary light source device comprising:
a light emitting diode; an electric double-layer capacitor that supplies electric power to the light emitting diode; and a non-volatile memory that stores illumination color information of the light emitting diode for color correction in processing an image picked up under illumination by the light emitting diode, wherein the electric double-layer capacitor is supplied with electric power from a rechargeable power source battery, and wherein the image pickup auxiliary light source device further comprises a switchover control portion that performs a switchover between power supply from the electric double-layer capacitor to the light emitting diode and power supply directly from the rechargeable power source battery to the light emitting diode without passing through the electric double-layer capacitor.