A three-dimension scanning apparatus and method of use is disclosed. The system includes a light intensity meter for measuring a level of light intensity at a first camera of the 3D scanning apparatus. The first camera has an adjustable aperture. A processor is provided that is configured to adjust the adjustable aperture of the first camera automatically based on the measured light level.

A three-dimension scanning apparatus and method of use is disclosed. The system includes a light intensity meter for measuring a level of light intensity at a first camera of the 3D scanning apparatus. The first camera has an adjustable aperture. A processor is provided that is configured to adjust the adjustable aperture of the first camera automatically based on the measured light level.

If vibration propagates to an operation button that is a moving member in a state where the operation button is not touched by a user, a noise is generated from near the operation button. Therefore, an electronic apparatus that reduces a noise generated from near an operation button is provided. In an electronic apparatus, a vibration device has a first vibration mode of vibrating an operation unit at a second position and a second vibration mode of vibrating an exterior member at a first position, and the operation unit is not in contact with a vibration propagation member at the first position, and the operation unit is in contact with the vibration propagation member at the second position or as the operation unit arrives at the second position.

If vibration propagates to an operation button that is a moving member in a state where the operation button is not touched by a user, a noise is generated from near the operation button. Therefore, an electronic apparatus that reduces a noise generated from near an operation button is provided. In an electronic apparatus, a vibration device has a first vibration mode of vibrating an operation unit at a second position and a second vibration mode of vibrating an exterior member at a first position, and the operation unit is not in contact with a vibration propagation member at the first position, and the operation unit is in contact with the vibration propagation member at the second position or as the operation unit arrives at the second position.

An image pickup apparatus to which an image pickup accessory having a focus lens and a diaphragm is detachably attachable includes a communication unit configured to communicate with the image pickup accessory, an image pickup unit, an exposure control unit, and a focus control unit. The communication unit transmits a request for diaphragm control to the image pickup accessory, and receives first information on a relationship between a diaphragm position and a variation in a light amount during the diaphragm control, second information corresponding to the diaphragm position, and third information corresponding to the diaphragm position and light transmittance of the image pickup accessory. The exposure control unit controls the exposure based on the first information and the second information. The focus control unit controls the driving of the focus lens based on the defocus amount calculated based on the third information.

An imaging apparatus includes a focus detector configured to perform a focus detection based on a signal output from the image sensor corresponding to the first imaging, a calculator configured to calculate a first time corresponding to the second imaging, and a focus controller configured to perform a focus control for driving the focus lens to an in-focus position predicted at the first time based on a focus detection result. The calculator calculates the first time in accordance with whether the aperture control corresponding to the attached lens apparatus is a first aperture control for driving the aperture to a target aperture value via a predetermined aperture value from the aperture value before the aperture control or a second aperture control for driving the aperture to the target aperture value directly from the aperture value before the aperture control.

An imaging apparatus includes a focus detector configured to perform a focus detection based on a signal output from the image sensor corresponding to the first imaging, a calculator configured to calculate a first time corresponding to the second imaging, and a focus controller configured to perform a focus control for driving the focus lens to an in-focus position predicted at the first time based on a focus detection result. The calculator calculates the first time in accordance with whether the aperture control corresponding to the attached lens apparatus is a first aperture control for driving the aperture to a target aperture value via a predetermined aperture value from the aperture value before the aperture control or a second aperture control for driving the aperture to the target aperture value directly from the aperture value before the aperture control.

A high-contrast liquid crystal light control device provides angle independent variable transmission of incident light for uniform gray shades. The liquid crystal light control device comprises a combination of first and second liquid crystal devices arranged in optical series and positioned between optical polarizers. The director field of the second liquid crystal device is a mirror image of the director field of the first liquid crystal device, and the first and second liquid crystal devices are placed together so that the azimuthal directions of the surface-contacting directors are in parallel alignment at the adjoining or confronting surfaces of the substrates of the first and second liquid crystal devices. The liquid crystal light control device provides, therefore, less angular variation of intermediate transmittances compared with that provided by prior art liquid crystal light control devices.

A high-contrast liquid crystal light control device provides angle independent variable transmission of incident light for uniform gray shades. The liquid crystal light control device comprises a combination of first and second liquid crystal devices arranged in optical series and positioned between optical polarizers. The director field of the second liquid crystal device is a mirror image of the director field of the first liquid crystal device, and the first and second liquid crystal devices are placed together so that the azimuthal directions of the surface-contacting directors are in parallel alignment at the adjoining or confronting surfaces of the substrates of the first and second liquid crystal devices. The liquid crystal light control device provides, therefore, less angular variation of intermediate transmittances compared with that provided by prior art liquid crystal light control devices.

A display and imaging device includes a display of a transmissive type configured to receive an image as an input and display the image, a camera configured to image a side in front of the display from behind the display, a distance detecting unit configured to detect a distance from the camera to a target object of imaging using the camera and a depth of field control unit configured to control a depth of field of imaging using the camera in accordance with the detected distance.