Patent ID: 8217973
Filing Date: 2012-07-10
Classification: G03G,G06K,H04N

Abstract:
1. An exposure device comprising: a plurality of light-emitting elements; a light amount detection unit that detects light amounts of the light-emitting elements; a controller that sequentially determines control values of the respective light-emitting elements based on comparison between the light amounts detected by the light amount detection unit and a predetermined reference value, wherein the control values of the respective light-emitting elements are used to cause the respective light-emitting elements to emit light and carry out exposure; a plurality of holding units that are provided for the light-emitting elements, respectively, wherein each holding unit holds a control voltage of the controller that is used to determine a respective one of the control values; and a connection unit, wherein when the controller is to sequentially determine control values of a part of the plurality of light-emitting elements, the connection units connects the controller and the holding units corresponding to one or more light-emitting elements for which control values are determined first in the sequential determination among the part of the plurality of light-emitting elements, before the controller begins the sequential determination the control values of the one or more light-emitting elements following a prior sequential determination.