Described examples include an optical apparatus having a first lens, a first optical element having a first aperture, a second lens, and a second optical element having a second aperture. The optical apparatus includes a third lens having a first portion to receive projected light from the first lens through the first aperture and to project the projected light onto a target. Also, the third lens has a second portion to receive reflected light reflected from the target and to provide the reflected light to the second lens through the second aperture.

Gestures may be performed to control a visual projector. When a device or human hand is placed into a projection field of the visual projector, the visual projector responds to gestures. The human hand, for example, may gesture to rotate a projected image or to correct the projected image. The visual projector may thus manipulate and/or correct the projected image in response to the gesture.

An image capture apparatus includes an image capture element and a spatial filter. The spatial filter is disposed on the image capture element. The spatial filter includes a plurality of translucent substrates and a plurality of light shielding structures. The plurality of light shielding structures and the plurality of translucent substrates are alternately arranged along a first direction. Each of the light shielding structures at least includes a light absorbing layer, and the light absorbing layer has a plurality of first openings respectively corresponding to the pixel regions. At least one of the plurality of light shielding structures includes a reflective layer and a light absorbing layer stacked to each other. The reflective layer has a plurality of second openings respectively overlapped with the plurality of first openings of the light absorbing layer of the at least one of the plurality of light shielding structures.

An apparatus and method for insuring the proper alignment of a detected vein pattern and a projected vein pattern are disclosed. The apparatus enhances the visual appearance of veins so that an error that can lead to improper patient care or injury can be avoided.

The embodiments of present disclosure involve an image capturing method and device. The image capturing method includes: performing image capturing to generate first images corresponding to preset regions when a capturing apparatus is moved to preset capturing angles; splicing the first images corresponding to the preset regions to generate a spherical image; and projecting the spherical image onto a preset reference plane to generate a second image.

Gestures may be performed to control a visual projector. When a device or human hand is placed into a projection field of the visual projector, the visual projector responds to gestures. The human hand, for example, may gesture to rotate a projected image or to correct the projected image. The visual projector may thus manipulate and/or correct the projected image in response to the gesture.

In one or more embodiments disclosed herein, an electronic device may include a display device operable to project an image, a front cover substrate positioned over the display device and including a transparent material, and a protective coating disposed on at least a portion of the non-display area of the front cover substrate. The front cover substrate may include a display area over the display device and a non-display area around at least the perimeter of the front cover substrate. The protective coating may include an inorganic material. The protective coating may not be positioned over the display area.

A signal detection device of the present invention includes a first control unit configured to determine whether there are inputs of a plurality of external signals connected thereto, a second control unit configured to be activated after the first control unit is activated, a first input unit connected directly to the first control unit and configured to input a first external signal, which is one type of the plurality of external signals, and a second input unit connected to the first control unit via the second control unit and configured to input a second external signal, which is another type of the plurality of external signals, and the first control unit determines whether there is an input of the first external signal before the second control unit is activated and determines whether there is an input of the second external signal after the second control unit is activated.

An apparatus and method for insuring the proper alignment of a detected vein pattern and a projected vein pattern are disclosed. The apparatus enhances the visual appearance of veins so that an error that can lead to improper patient care or injury can be avoided.

An ambulatory system to communicate visual projections. An embodiment of an apparatus for ambulatory communication includes: a propulsion system to enable the apparatus to fly, including to hover in place and to follow a user; a stereo camera to record an image of a user of the apparatus or a scene nearby the user of the apparatus; a transmitter to transmit video data generated by the stereo camera to a second apparatus via network for a communication with a remote user; a receiver to receive video data via the network from the remote user; and a video projection mechanism to project an image including the received video to the user.