Abstract: Various embodiments include a computer-implemented method comprising determining a height of an eye associated with a user, determining, based on the height of the eye, a target mirror position for a movable mirror to reflect an image on to a reflective surface, wherein the image reflects off of the reflective surface and towards the user at an angle of inclination to reach the user at the height of the eye, the angle of inclination being constant for different heights of the eye, and causing the movable mirror to move to the target mirror position.

Abstract: A lens hood has an antireflection film for shielding an unnecessary light entering a photographic lens of a camera. Here, (A) indicates a resin component, (B) unevenness forming particles, (B1) inorganic-type small particles having a particle diameter (d1) of 0.05 ?m to 0.4 ?m, (B2) inorganic-type large particles having a particle diameter (d2) of 2 ?m to 6 ?m, and (C) a diluent solvent. The antireflection film is a membrane formed from a liquid composition via spray coating and has a thickness of 2 to 40 ?m. The liquid composition has at least (A), (B) and (C). The (B) is contained in an amount of 20% by mass to 60% by mass in 100% by mass of a total amount of the total solid content in the composition. The (B) contains (B1) and (B2) in an amount of 90% by mass or more. A mass ratio of (B2) to (B1):1 is 1.8 to 3.3.

Abstract: A gimbal module includes a first carrier including a receiving chamber, a first bracket accommodated in the receiving chamber, a lens assembly fixed to the first bracket, and a flexible circuit board connected to the lens assembly. The flexible circuit board extends in an S-shape on a plane as viewed in a height direction of the gimbal module. An electronic device including the gimbal module is also disclosed.

Abstract: A composite substrate includes in this order: a support substrate; an intermediate layer; and a piezoelectric layer, wherein the intermediate layer contains bubbles.

Abstract: An optical lens includes a first component, a second component, a third component, and a fourth component that each include at least one lens. The second component includes a refraction member configured to change a transmission route of light transmitted from the first component, the third component and the fourth component are coaxially disposed. An included angle is formed between optical axes of the third component and the fourth component and an optical axis of the first component. A position of the second component relative to an imaging plane of the optical lens is fixed. The first component, the third component, and the fourth component can move relative to the second component.

Abstract: An optoelectronic semiconductor device may include a carrier comprising a patterned surface and a semiconductor layer sequence arranged on the carrier. The semiconductor layer sequence may include a first semiconductor layer having a first surface, a second semiconductor layer having a first surface, and a first main surface and a second main surface opposite the first main surface. The first surfaces of the first and second semiconductor layers may be at least partly arranged at the first main surface. The second main surface may face the patterned surface of the carrier, and at least one side face may connect the first and second main surfaces. The device may further include a directionally reflective layer and a planarization layer. The planarization layer may be arranged between the patterned surface and the directionally reflective layer. Moreover, a method for producing an optoelectronic semiconductor device is also disclosed.

Abstract: A large-field of view, high-resolution broadband objective lens, which comprises nineteen spherical lenses that are arranged on the same optical axis. The nineteen lenses sequentially comprise, from an object side to an image side: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens, an eleventh lens, a twelfth lens, a thirteenth lens, a fourteenth lens, a fifteenth lens, a sixteenth lens, a seventeenth lens, an eighteenth lens and a nineteenth lens. Compared with previous similar objective lenses, the objective lens has a higher resolution, a larger imaging field of view and a wider working waveband, and can meet the requirement for visible light and near-infrared two-photon, large-field of view, high-resolution imaging.

Abstract: A composite optical element includes a glass lens and a resin lens that are joined together. The resin lens has an aspheric shape. When Nd is a refractive index of the resin lens, ?d is an Abbe number of the resin lens, and ?gF is a partial dispersion ratio of the resin lens, Nd, ?d, and ?gF are appropriately set.

Abstract: A zoom optical system comprises, in order from an object: a front lens group (GFS) having a positive refractive power; an M1 lens group (GM1) having a negative refractive power; an M2 lens group (GM2) having a positive refractive power; and an RN lens group (GRN) having a negative refractive power, wherein upon zooming, distances between the front lens group and the M1 lens group, between the M1 lens group and the M2 lens group, and between the M2 lens group and the RN lens group change, upon focusing from an infinite distant object to a short distant object, the RN lens group moves, the RN lens group comprises at least one lens having a positive refractive power, and at least one lens having a negative refractive power, and following conditional expressions are satisfied, 2.70<fFP/(?fFN)<4.50, 0.25<(?fF)/f1<0.

Abstract: An acoustic wave device includes a piezoelectric substrate including a support substrate and a piezoelectric layer, and an IDT electrode. In the IDT electrode, a second gap region includes gap portions on an extension line in an electrode finger extending direction. A through-hole is provided in a portion of the piezoelectric layer overlapping a gap portion in plan view. A recessed portion is provided in a portion of the support substrate overlapping the through-hole in plan view. The recessed portion extends farther toward a center of the IDT electrode in the electrode finger extending direction than the portion including the through-hole. One or more layers in the piezoelectric substrate are constraining layers that constrain the piezoelectric layer at a portion overlapping an intersection region in plan view, and the piezoelectric layer includes a protruding portion that protrudes farther in the electrode finger extending direction than at least one constraining layer.

Abstract: An optical device and the prism module thereof are provided. The prism module includes a first prism, a second prism, a film and a light guide unit. The film is disposed between the first prism and the second prism. First visible light enters the first prism, passes through the film, enters the second prism, exits from the second prism, reaches the light guide unit, and is reflected to user's eyes by the light guide unit. Also, second visible light passes through the light guide and reaches user's eyes.

Abstract: An optical system and an optical camera working at a far-infrared waveband are provided, the optical system including three optical elements, the three optical elements being, along the optical axis in order from an object side to an image side: a first sulfur refractive lens, a metalens and a second sulfur refractive lens; the first sulfur refractive lens and the second sulfur refractive lens have positive refractive power; each of three optical elements including an object-side surface facing towards the object side and an image-side surface facing towards the image side; the metalens includes a substrate and a plurality of unit cells, and a plurality of nanostructures are set in the unit cells; the optical system satisfies the following condition with a unit of 1/mm: 0.25 ? n * ( ? "\[LeftBracketingBar]" C 1 ? "\[RightBracketingBar]" + ? "\[LeftBracketingBar]" C 2 ? "\[RightBracketingBar]" ) ? 2 ? .01 .

Abstract: The present invention relates to the field of diagnostic equipment in the ophthalmic field, and more precisely has as its object a multifunctional apparatus capable of performing measurements, examinations and even operations of various kinds on the eye of a patient.

Abstract: A microscope objective, including from an exit pupil plane to an object plane: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, and a fifth lens having a positive refractive power; a focal length of the microscope objective is f, a focal length of the first lens is f1, a focal length of the second lens is f2, a focal length of the third lens is f3, an on-axis distance from the object plane of the microscope objective to an object side surface of the fifth lens is WD, a numerical aperture is NA, and a total optical length is TTL, following relational expressions are satisfied: 0.68?f3/f?2.00; ?2.20?f2/f1??1.40; 0.15?WD/TTL?0.35; 6.00?f*NA?9.00. The microscope objective has the characteristics of low distortion, 1.5 times magnification and long operating distance.

Abstract: A vehicular interior rearview mirror system includes an interior rearview mirror assembly having a mirror head adjustable relative to a mounting base. The mirror head includes a variable reflectance electro-optic mirror reflective element. A glare light sensor is disposed at the mirror head and captures sensor data representative of visible light and near infrared light passing through the variable reflectance electro-optic mirror reflective element. The vehicular interior rearview mirror system determines a near infrared light component of the captured sensor data. Based on processing of the captured sensor data, the system controls dimming of the variable reflectance electro-optic mirror reflective element. The system does not rely on the determined near infrared light component of the captured sensor data when controlling dimming of the variable reflectance electro-optic mirror reflective element.

Abstract: A lens module is provided. The lens module includes a first driving unit configured to move a first lens barrel along an optical axis direction; and a second driving unit configured to move a second lens barrel along the optical axis direction, wherein the second driving unit is disposed between the first lens barrel and the second lens barrel and is configured to change a distance between the first lens barrel and the second lens barrel.

Abstract: An AI-controlled photonic system that performs therapeutic photomodulation and reflective optical diagnostics, including OCT, OCTA, near-infrared reflectance, and fundus autofluorescence, is described here. The system incorporates an AI-Predictive Gating module that identifies optimal temporal windows for energy delivery or data acquisition based on reflectance dynamics, retinal motion, physiologic parameters, mitochondrial biomarkers, and image-quality metrics. By synchronizing photonic emission and diagnostic capture to predicted physiologic states, the system improves diagnostic fidelity, enhances therapeutic precision, and enables earlier detection of degenerative, inflammatory, and pharmacologic retinal injury.

Abstract: A diffractive optical assembly includes an input coupler, an output coupler, and an image source. The output coupler is next to the input coupler. One of the input coupler and the output coupler has a most critical holographic optical element (HOE), and another one has a diffractive optical element (DOE). Bragg condition of the most critical HOE is more sensitive than Bragg condition of the DOE. The image source is configured to generate image light that is incident to the input coupler then propagates to the output coupler. The image light has incident angles to the input coupler and wavelengths corresponding to the incident angles. The wavelengths of the image light on the image source have a two-dimensional spatial distribution, such that relationships between the incident angles and the wavelengths of the image light comply with Bragg selectivity of the most critical HOE.

Abstract: An air veil system includes a housing containing a sensor, and a manifold mounted to the housing. The manifold defines an air outlet as a continuous loop surrounding the sensor. The air outlet is configured to receive a supply of pressurized air from an air source and generate an airflow that extends outward from the continuous loop in front of the housing, the airflow creating an air veil surrounding the sensor. The air veil extends outward from the continuous loop in front of the housing at an angle such that the air veil converges at a point in an axial direction of the manifold in front of the housing. The manifold includes a first surface and a second surface disposed at a predetermined gap relative the first surface. The air outlet as the continuous loop is defined by the predetermined gap.

Abstract: Disclosed are an optical system and a virtual reality device. The optical system comprises a display unit (10) and a first lens (20), the first lens (20) comprises a first surface (21) and a second surface (22), and the second surface (22) has a planar structure; an optical splitter is provided between the first surface (21) and the display unit (10); a first phase retarder (30) and a polarization reflector (40) are provided at a side of the first lens (20) away from the display unit (10), and the first phase retarder (30) is provided between the first lens (20) and the polarization reflector (40); and light emitted from the display unit (10) enters into the first lens (20) from the first surface (21), and is sequentially reflected by the second surface (22) and the first surface (21), and then exits the optical system from the second surface (22).