Abstract: An optical image anti-shake device, defined with an X-axis, a Y-axis and a Z-axis, includes a casing, a movable member and a base. A suspension mechanism furnished inside the optical image anti-shake device includes a movable-member support and a suspension module. A first surface of the movable-member support is connected to the movable member. The suspension module suspends the movable-member support together with the movable member inside an inner compartment formed between the casing and the base.

Abstract: An inflatable light concentrating mirror (10) comprising a first transparent sheet (1) and a second reflective sheet (2), wherein the first sheet and second sheet are connected or sealed to each other, whereby a void is provided there-between, the void being adapted to receive a gas so as to inflate the light concentrating mirror, characterized in that the mirror further comprises tensioning means (14) adapted to produce a defined longitudinal tension (11) in at least the second sheet (2) such that wrinkles or creases therein are significantly reduced. The tensioning means comprises one or more tensioning devices (14) adapted to be attached to at least one mirror end or one free end of the second sheet, the tensioning device is configured to provide a pulling force (11) on the second sheet so as to provide the longitudinal tension.

Abstract: In some aspects, an afocal adaptor for an optical device comprises a housing. The housing includes a first and a second optical channel. A divider is configured between the first optical channel and the second optical channel to prevent transmission of electromagnetic radiation between the first optical channel and the second optical channel. At least one lens is associated with each of the first optical channel and the second optical channel. A particular at least one lens is configured to provide a focal point for each of the first optical channel and the second optical channel and to guide a particular type of electromagnetic radiation through each of the first optical channel and the second optical channel. The electromagnetic radiation is guided into a corresponding first receiving optical channel and a second receiving optical channel associated with the optical device. A coupling mechanism is attached to the housing and configured to permit attachment of the housing to the optical device.

Abstract: Provided is a zoom lens, including, in order from an object side to an image side: a first lens unit to a fourth lens unit having negative, positive, negative, and negative refractive powers; and a rear lens group. In the zoom lens, an interval between each pair of adjacent lens units is changed during zooming, the rear lens group has a positive refractive power over an entire zoom range, the third lens unit is configured to move in an optical axis direction during focusing, and each of a focal length of the zoom lens at a wide angle end (fw), and a focal length of the third lens unit (f3) is appropriately set.

Abstract: A device for tunable optical filter includes a substrate, one or more piezos, a bottom mirror, and a top mirror. The one or more piezos are placed on the substrate. The one or more piezos have a piezo thickness. The bottom mirror is placed on the substrate. The bottom mirror has a bottom mirror thickness greater than the piezo thickness. The top mirror is placed on the bottom mirror. The top mirror is attached to the one or more piezos.

Abstract: A dielectric mirror includes a coating having alternating high and low index layers. The mirror coating has no metallic reflective layer of Al or Ag in certain example embodiments, and may have film side and/or glass side visible reflection of from about 50-90% (more preferably from about 60-80% and most preferably from about 65-75%) and visible transmission of from about 10-50% (more preferably from about 10-40% or 20-40%) in certain example embodiments.

Abstract: A hologram generation apparatus includes an LCOS, an LCOS display control unit configured to form a partial hologram generation display area and positioning hologram generation display areas on a display surface of the LCOS, an object light optical system configured to apply object light onto a recording medium and generate a partial hologram and positioning holograms, the object light being generated by the partial hologram generation display area and the positioning hologram generation display areas, and a position control unit configured to determine a position of an partial hologram to be generated next based on positions of the generated positioning holograms.

Abstract: A method of automatically detecting a retinal feature using an ophthalmic imaging system can include: acquiring an optical coherence tomography (OCT) image of a retina; segmenting the OCT image; generating a metric based on the segmented OCT image; detecting the retinal feature based on the metric; and providing an indication of the detected retinal feature to a user. An ophthalmic imaging system can include: an OCT system configured to acquire an image of a retina; a computing device coupled to the OCT system and configured to segment the image, generate a metric based on the segmented image, and detect a retinal feature based on the metric; and an audio/visual/tactile device in communication with the computing device and configured to provide at least one of an audio, visual, and tactile indication of the detected retinal feature to a user.

Abstract: The present disclosure provides a display panel and a display device. The display panel includes a curved substrate having a first curvature and a curved grating layer corresponding to the curved substrate and having a second curvature, wherein, light that is emitted into the display panel is converged by means of the curved substrate having the first curvature and the curved grating layer corresponding to the substrate and having the second curvature, so as to reduce crosstalk between view images. Further, focusing effect of the view images viewed can be improved such that stereoscopic effect of the view image viewed is much more excellent as the distance between each point of the curved substrate and each point of the curved grating layer along the viewing direction is equal to the focal length for the grating structure.

Abstract: An optical system having two or more different optical elements with a corresponding interface between the optical elements. At least one of the optical elements has an anti-reflective structure that is transferred to the interface between two optical elements, typically by embossing. Also disclosed is the related method for making the optical system.

Abstract: A zoom lens has, in order from an object side to an image side, a positive first lens unit, a negative second lens unit, a positive third lens unit, a positive fourth lens unit, and a fifth lens unit. In the zoom lens, the loci of the lens units moving for zooming are set appropriately, and a reflector for bending an optical path is placed at an appropriate position within the fifth lens unit.

Abstract: An optics arrangement for a solid immersion lens (SIL) is disclosed. The arrangement enables the SIL to freely tilt. The arrangement includes a SIL having an optical axis extending from an engaging surface and a rear surface of the SIL; a SIL housing having a cavity configured to accept the SIL therein while allowing the SIL to freely tilt within the cavity, wherein the cavity includes a hole positioned such that the optical axis passes there-through, to thereby allow light collected by the SIL to propagate to an objective lens; and, a SIL retainer attached to the SIL housing and configured to prevent the SIL from exiting the cavity.

Abstract: A protective material that includes a dielectric mirror having at least one layer, each layer of the dielectric mirror being configured to reflect at least a portion of incident energy of a predetermined wavelength; and a photonic, crystal array of periodic structures disposed within the dielectric mirror, the photonic crystal array of periodic structures being configured to disperse non-reflected incident energy of the predetermined wavelength transmitted through the dielectric mirror across the photonic crystal array of periodic structures in a direction parallel to a plane of the dielectric mirror.

Abstract: An optical film includes a transparent substrate, an optical material comprising quantum dots disposed over a surface of the substrate, and a light diffusion film disposed over the optical material, the light diffusion film including a transparent support and a diffusion layer formed over the transparent support, the light diffusion film being positioned such that the transparent support is between the optical material and the diffusion layer, the light diffusion film having a back to front haze value of at least 80% and a total back to front light transmission value of at least 50%. Other layers can optionally be included in the optical film. A backlight unit and display including the optical film taught herein are also disclosed.

Abstract: A display device being switchable between a normal display mode and an anti-peeping display mode and a display system comprising the display device are disclosed. The display device comprises: a housing; a display panel mounted within the housing and provided with a polarizer only on a light incidence side thereof, the polarizer being configured to polarize light to be incident into the display panel; and a polarization analyzing structure fitted onto the housing, and configured to selectively analyze light emitted out from an active display area of the display panel so as to achieve a normal display mode, in which a user is able to directly view an image displayed in the display device, and anti-peeping display mode, in which the user is able to view the image displayed in the display device only by means of an additional polarization analyzer, of the display device.

Abstract: An optical absorber includes a first light-absorbing body which receives light incident from an entrance aperture and partially absorbs and reflects the incident light, and a second light-absorbing body which partially absorbs the incident light reflected by the first light-absorbing body and partially reflects the incident light toward the first light-absorbing body. The reflectance and light resistance of the first light-absorbing body are set higher than the reflectance and light resistance, respectively, of the second light-absorbing body.

Abstract: Diffractive waveplate lenses, devices, systems and methods of fabricating and manufacturing lenses for correcting spherical and chromatic aberrations of diffractive waveplate lenses and refractive lenses, by using nonlinear patterning of anisotropy axis of birefringent layers comprising the diffractive waveplate lenses, and their combinations and for obtaining polarization-independent functionality of diffractive waveplate lenses.

Abstract: Eyewear for enhancing the contrast sensitivity of the human vision system through the use of lenses subdivided in areas of different light filtration properties arranged in specialized patterns, called multi-filters patterns, are provided. Of the multiple filtration areas, or filters, that compose each multi-filters patterns, one or more filters heavily reduces or totally block light arriving from some areas of the visual field of the eyes, while other filters lightly reduce or totally allow light from other areas of the same visual field. The resulting effect is to drive the auto-exposure function of the eye-brain vision system to adapt itself to areas of interest of the visual field thus improving contrast sensitivity and vision acuity in those areas while reducing or blocking light and glare from the rest of the visual field.

Abstract: The present invention relates to an optical multilayer coating placed on or above a substrate. The optical multilayer coating includes a high-refractive index layer with a refractive index of 1.76 to 2.7, a magnesium oxyfluoride layer, and a magnesium fluoride layer. The high-refractive index layer, the magnesium oxyfluoride layer, and the magnesium fluoride layer are stacked on or above the substrate in this order and are in contact with each other. The magnesium oxyfluoride layer has a composition represented by the following formula: MgxOyFz??(1) where z/x is not less than 0.01 nor greater than 1.45 and z/y is not less than 0.01 nor greater than 3.17.

Abstract: Provided is a camera lens, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens from an object side to an image side of the camera lens in turn. The first lens is of a positive focal power, an object side surface of the first lens is convex; an object side surface of the fourth lens is concave; the fifth lens is of a positive focal power; the seventh lens is of a negative focal power. The camera lens further includes an aperture stop arranged between a photographed object and the second lens, the camera lens meets the following formula: TTL/ImgH<2.4; 1.5<CT1/CT2<4.