Abstract: A compressed print having one or more compressed images of a symbol is disclosed. The compressed images are formed on an image forming surface under a lenticular sheet. The lenticular sheet has a plurality of lenticules and each of the compressed images has a plurality of image elements formed under a lenticule. Each of the image elements is corresponding to a different portion of the symbol. The lenticules are designed to be so small that the compressed image formed under each of the lenticules is not discernible when a viewer looks at the compressed print at a normal viewing distance. As such, the miniaturized compressed images of the symbol can be used as an identification tag, hidden in the compressed print.

Abstract: A viewing system has a parallax separation device placed in front of a liquid crystal display panel. The liquid display panel can be used to display a composite image that has many display segments, with each segment having two or more elongated image sections of different images. Each image section may occupy one or more columns of color pixels. The parallax separation device has a plurality of parallax separation elements, each aligned with a display segment for separating the different image sections as seen in a viewer's eyes. The parallax separation device has a barrier axis parallel to the longitudinal axis of the elongated image sections. The color sub-pixels in each pixel are arranged along a direction parallel to the barrier axis.

Abstract: A single-lens 2D/3D camera has a light valve placed in relationship to a lens module to control the light beam received by the lens module for forming an image on an image sensor. The light valve has a light valve area positioned in a path of the light beam. The light valve has two or more clearable sections such that only one section is made clear to allow part of the light beam to pass through. By separately making clear different sections on the light valve, a number of images as viewed through slightly different angles can be captured. The clearable sections include a right section and a left section so that the captured images can be used to produce 3D pictures or displays. The clearable sections also include a middle section so that the camera can be used as a 2D camera.

Abstract: The present invention discloses a laser-aiming device for a radiant thermometer, which comprises a laser adjustment seat, a laser device, and a prism having two inclined faces. The laser adjustment seat is arranged on a temperature detection device of the radiant thermometer. The laser device and the prism are arranged on the laser adjustment device. The laser device generates a laser beam. The prism is located at the illuminated side of the laser beam and coaxial with the laser device, refracting the laser beam into two laser beams that generate two laser spots designating the detectable area of the radiant thermometer.

Abstract: A 3D photographic printer uses a digital display device for displaying two or more images for composing a 3D photograph. The images are displayed at different locations so that these images can be projected onto a 3D print material through a projection lens at different projection angles. With the digital display device, it is possible to electronically locate the images at different locations and shift the images without mechanically moving the display device during the entire 3D photographic composing process. It is also possible that only the print material is mechanically shifted to different locations. The display device and the projection lens can be stationary. The display device can be an LCD, LED or plasma display panel.

Abstract: The present invention discloses a laser-aiming device for a radiant thermometer, which comprises a laser adjustment seat, a laser device, and a prism having two inclined faces. The laser adjustment seat is arranged on a temperature detection device of the radiant thermometer. The laser device and the prism are arranged on the laser adjustment device. The laser device generates a laser beam. The prism is located at the illuminated side of the laser beam and coaxial with the laser device, refracting the laser beam into two laser beams that generate two laser spots designating the detectable area of the radiant thermometer.

Abstract: A 3D display system uses a lenticular screen or a parallax barrier, along with a shutter plate, as a light directing device to allow a viewer's right eye to see a right image and the left eye to see a left image on a display panel. The right and left images are alternately displayed. The shutter plate has a plurality of right shutter segments and a plurality of left shutter segments arranged in an interleaving manner. When the right image is displayed, the right shutter segments are open and the left shutter segments are closed. When the left image is displayed, the right shutter segments are closed and the left shutter segments are open. But when the 3D display panel is used as a 2D display panel, both the right and left shutter segments are all open so that both the viewer's eyes see the image simultaneously.

Abstract: A single-lens 2D/3D camera has a light valve placed in relationship to a lens module to control the light beam received by the lens module for forming an image on an image sensor. The light valve has a light valve area positioned in a path of the light beam. The light valve has two or more clearable sections such that only one section is made clear to allow part of the light beam to pass through. By separately making clear different sections on the light valve, a number of images as viewed through slightly different angles can be captured. The clearable sections include a right section and a left section so that the captured images can be used to produce 3D pictures or displays. The clearable sections also include a middle section so that the camera can be used as a 2D camera.

Abstract: A viewing system has a parallax separation device placed in front of a liquid crystal display panel. The liquid display panel can be used to display a composite image that has many display segments, with each segment having two or more elongated image sections of different images. Each image section may occupy one or more columns of color pixels. The parallax separation device has a plurality of parallax separation elements, each aligned with a display segment for separating the different image sections as seen in a viewer's eyes. The parallax separation device has a barrier axis parallel to the longitudinal axis of the elongated image sections. The color sub-pixels in each pixel are arranged along a direction parallel to the barrier axis.

Abstract: The prevention of counterfeiting of labels for various products is addressed by introducing counterfeit proof labels having optically-concealed cross reference color codes for identification and verification. Groups of color codes are compressed and printed at the focal plane of a high definition micro-optic arrays of the label in relation to the optical centers of the micro lenses, so that each designated color codes can be read at a specific viewing angle to match with a reference color key on the label for identifying the authentication of the label. All the color codes can be printed on one single label or the cross reference color codes can be printed on the reference label of a twin label system. Both labels will be applied on the product and the color codes on the label can be read under visible light source without any viewing aid.