A screen magnifier includes a magnifier body and a mounting seat. The magnifier body includes a magnifying glass. A rotating shaft is disposed on the magnifier body. The rotating shaft is disposed perpendicular to a glass surface of the magnifying glass. Mounting holes are on the mounting seat. The rotating shaft is movably connected with the mounting holes. The mounting holes extend along a horizontal direction. The rotating shaft is disposed in the mounting holes. The magnifier body rotated around an axis of the rotating shaft, and the magnifier body is switched between a horizontal position and a vertical position by rotating.

A system that includes a wearable device, and a method of using the system, including: receiving, at a first transceiver element of a wearable device, a target beam from a ride-share vehicle, the element having a first axis of reception; and when the first axis is oriented toward the beam, providing an indication, via the device, to a user thereof.

In a display terminal device, a CPU determines an arrangement position of a virtual object in real space by software processing and outputs a first image, which is an image of the virtual object, and information indicating the arrangement position. An imaging unit captures a second image, which is an image of the real space. A synthesizer generates a synthetic image by combining the first image and the second image by hardware processing based on the arrangement position. A display is directly connected to the synthesizer and displays the synthetic image.

Technologies that stimulate the mammalian central nervous system are described. A method includes: (a) causing a pair of glasses to be worn by a user, where the pair of glasses hosts/interacts with a processor, a first light source, a second light source, a first sound source, and a second sound source; (b) causing the processor to read sets of parameters that include information regarding base frequencies, variability, frequency ranges, and time ranges, where the frequency ranges are positively and negatively off the base frequencies; and (c) causing the processor to request the light sources to (i) flash light to visual fields (left/right) of each eye according to selected frequencies for a duration of time and to (ii) pulse sound to the each ear according to selected frequencies for a duration of time such that an audio-visual entrainment (AVE) occurs that causes neuron and the glia to respond dynamically to the AVE. The frequencies are randomly selected from a frequency range and the duration of stimulation time is randomly selected from a time range.

A hands-free adjustable magnifying lens holder and workstation for use with up-close handiwork and reading made as a frame base with short and long side members pivotally supporting a frame with multiple lenses and a component to releasably hold the frame of the lenses at various angles for use. The device can magnify, can easily adjust heights and angle of lens, can be collapsed to a compact package, can use multiple lens for increased magnification, is light weight and easy to carry, requires no tools to adjust positions, and can be manufactured from available materials.

An optical mechanism comprises a fixed portion with a main axis, wherein the fixed portion has a polygonal structure when viewed along the main axis; a movable portion, moving relative to the fixed portion, connected to an optical element; a joining mechanism, wherein the movable portion is movably connected to the fixed portion via the joining mechanism. The joining mechanism comprises a resilient member, having a longitudinal structure, extending in a first direction that is parallel to the main axis; and a spring sheet, having a tabular structure, wherein the spring sheet is movably connected to the fixed portion via the resilient member. The spring sheet comprises a connecting portion, fixedly connected to the movable portion; a fixing portion, accommodating the resilient member; a first section; and a second section. The first section comprises a first part with a first width; and a second part with a second width, wherein the first part is connected to the connecting portion via the second part. The second section comprises a third part with a third width; and a fourth part with a fourth width, wherein the third part is connected to the connecting portion via the fourth part. The first part is connected to the third part via the fixing portion. The first width is smaller than the second width. The third width is smaller than the fourth width. The first part and the third part extend in different directions.

An optical mechanism comprises a fixed portion with a main axis, wherein the fixed portion has a polygonal structure when viewed along the main axis; a movable portion, moving relative to the fixed portion, connected to an optical element; a joining mechanism, wherein the movable portion is movably connected to the fixed portion via the joining mechanism. The joining mechanism comprises a resilient member, having a longitudinal structure, extending in a first direction that is parallel to the main axis; and a spring sheet, having a tabular structure, wherein the spring sheet is movably connected to the fixed portion via the resilient member. The spring sheet comprises a connecting portion, fixedly connected to the movable portion; a fixing portion, accommodating the resilient member; a first section; and a second section. The first section comprises a first part with a first width; and a second part with a second width, wherein the first part is connected to the connecting portion via the second part. The second section comprises a third part with a third width; and a fourth part with a fourth width, wherein the third part is connected to the connecting portion via the fourth part. The first part is connected to the third part via the fixing portion. The first width is smaller than the second width. The third width is smaller than the fourth width. The first part and the third part extend in different directions.

An image projection device includes: a light source emitting a light beam; an image input unit inputting image data; a control unit generating an image light beam based on the input image data, and controlling emission of the image light beam from the light source; a scan unit scanning the image light beam emitted from the light source; and a projection optical member illuminating a retina of an eyeball of a user with the image light beam scanned by the scan unit, and projecting an image onto the retina, wherein a diameter of the image light beam at a time when the image light beam enters a cornea of the eyeball is not smaller than 310 μm and not larger than 800 μm, and a user having an original visual acuity in a range of 0.04 to 1.2 has an acquired visual acuity of 0.4 or higher.

An image display device, including a light-emitting pixel array operable to emit a plurality of two-dimensional images each comprising a plurality of pixels; a light field converter comprising a coherent optical fiber plate including a plurality of optical fibers, wherein the optical fiber plate has a first surface and a second surface, and an array of lenslets arranged along the second surface, wherein the array of lenslets is configured to have a focal surface conforming to the second surface of the optical fiber plate; wherein the light field converter is operable to transform pixels from each of the plurality of two-dimensional images into corresponding diverging rays; wherein the diverging rays form virtual three-dimensional image in an image-forming region.

An optical instrument indexing device includes a riser and first and second platform. The first platform is disposed on a first side of the riser at a first position on the riser. The second platform disposed on a second side of the riser at a second position on the riser. Both the first and second platforms are indexed or indexable to align two optical instruments to a field of view.