Abstract:
An imaging device can include an image sensor, a control unit coupled to the image sensor, and a light blocking element coupled to the control unit. The control unit can be configured to adjust the light blocking element in response to image information received from the image sensor. The light blocking element can be configured to regulate light received at the image sensor.
Abstract:
The invention relates in general to the field of digital cameras, especially small digital cameras. In particularly the invention relates for adjusting an aperture for mobile cameras. The adjustable aperture construction of the invention comprises two electrodes, and an electrical circuit for applying a voltage to the electrodes in order to create an electric field between the electrodes. In addition the construction comprises between the electrodes a center unit with a hole in the middle of it, the center unit being made of an electroactive material, such as dielectric material or electrostrictive polymer. The aperture can be adjusted by deforming the shape of the center unit. The shape of the center unit is advantageously deformed by the electric field created between said electrodes by said electrical circuit.
Abstract:
Device (16) for controlling and regulating the illumination and feed speed of a motion picture film in a motion picture camera whose film feed motor (26) is connected to a rotational speed controller (23) and has a rotary shutter which is connected to a position indicator in form of a potentiometer (6) and which can be adjusted by means of an adjusting motor (3). A reference value of the diaphragm aperture (light sector) of the adjustable rotary shutter which depends on the instantaneous film feed speed is transmitted by the controlling and regulating device (16) via a transducer (14) to a position controller (13). The product of the film feed speed and the diaphragm aperture is a constant. Different film feed speeds, diaphragm apertures and transit times can be input into the camera in a programming device (19) or in a remote control device (181, 182) and released sequentially by means of a program key (183).