Abstract: An optical system includes: a first lens having refractive power; a second lens having refractive power; a third lens having refractive power and comprising an image-side surface which is convex in a paraxial region; a fourth lens having refractive power; a fifth lens having refractive power and comprising an image-side surface which is concave in the paraxial region; a sixth lens having refractive power; and a stop disposed in front of an object-side surface of the first lens. The first to sixth lenses are sequentially disposed from an object side. A radius of the stop SD and an overall focal length of the optical system f satisfy: 0.2<SD/f<0.6. An aberration improvement effect and high degrees of resolution and brightness may be obtained.

Abstract: The present invention relates to a high resolution optical system. The optical system of the present invention includes, sequentially from an object side, a first lens having a positive refractive power and an object-side surface convex toward the object side; a second lens having a negative refractive power and an upwardly concave upper surface; a third lens having a positive refractive power; a fourth lens having a negative refractive power; a fifth lens having a positive refractive power and an upwardly convex upper surface; and a six lens having a negative refractive power and an upwardly concave upper surface.

Abstract: An image capturing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The first lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second and third lens elements have refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The sixth lens element with refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The image capturing lens assembly has a total of six lens elements with refractive power.

Abstract: An optical imaging lens assembly includes six lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The fifth lens element has negative refractive power. The sixth lens element has positive refractive power.

Abstract: In accordance with an embodiment, an optical lens includes a plurality of lenses that are sequentially arranged from an object side of the optical lens to an image side of the optical lens. A first lens of the plurality of lenses is a lens bent towards the image side and has a negative focal power; and an object-side surface of at least one of the lenses comprises at least one inflection point.

Abstract: A zoom lens comprises a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a rear lens group including one or more lens units. The first lens unit, the second lens unit, the rear lens group are arranged in order from an object side to an image side. Intervals between adjacent lens units change during zooming. The first lens unit is configured to move toward the object side during zooming from a wide angle end to a telephoto end. The second lens unit includes three or more lenses. The zoom lens satisfies predetermined inequalities.

Abstract: An optical path folding element includes a main body, a light absorption film layer and a matte structure. The main body has optical surface including an incident surface, a reflective surface and an emitting surface. A light enters into the optical folding element through the incident surface. The reflective surface reflects the light so as to change a traveling direction thereof. The light exits the optical folding element through the emitting surface. The light absorbing film layer is configured to reduce reflectance and provided adjacent to at least part of the optical surface, and the light absorbing film layer is in physical contact with the main body. The matte structure is disposed adjacent to at least part of the optical surface. The matte structure provides an undulating profile on a surface of the optical path folding element, and the matte structure is formed in one-piece with the main body.

Abstract: An imaging lens assembly includes a first lens group for shooting at a short focal length, a second lens group for shooting at a long focal length, a third lens group for shooting at the short focal length and the long focal length, a first minor positioned between the first lens group and the third lens group; and a second mirror positioned between the second lens group and the third lens group. The first lens group and second lens group change its position in an optical axis direction between a shooting state and a lens storage state. The first minor or second mirror forms an optical path optically connecting a corresponding lens group and the third lens group. The first minor or second minor secure a storage space for the corresponding lens group.

Abstract: This application discloses a long-focus lens, a camera module, and an electronic device. The long-focus lens includes a first lens assembly, a second lens assembly, and a third lens assembly that are arranged from an object side to an image side. The first lens assembly and the third lens assembly are fixed lens assemblies, and the second lens assembly is a focusing lens assembly. In a focusing process in which the long-focus lens is switched from a long shot to a close-up, the second lens assembly moves toward the object side along an optical axis, a combined focal length of the first lens assembly and the second lens assembly decreases, and a combined focal length of the second lens assembly and the third lens assembly decreases. The foregoing long-focus lens has a strong focusing capability and high imaging quality.

Abstract: An ultra-short focus projection lens is configured to receive an image beam from an image source side and project the image beam toward a projection surface. The ultra-short focus projection lens has an optical axis. The ultra-short focus projection lens includes a reflective optical element, a first lens group, a stop, and a second lens group arranged in sequence along the optical axis. The image beam from the image source side passes through the second lens group, the stop, and the first lens group in sequence, and is reflected by the reflective optical element and projected to the projection surface. The first lens group includes a plurality of lenses having diopters. The second lens group 10 includes a plurality of lenses having diopters. The first lens group and the second lens group include ten lenses having diopters in total. A projection device is also provided.

Abstract: An optical imaging system includes a first lens group having negative refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, wherein the second lens group and the third lens group are configured to move in an optical axis direction to adjust a focal length and magnification, and the following conditional expression is satisfied, FNOt?3.6, where FNOt is an F value at a telephoto end of the optical imaging system.

Abstract: Comprising, in order from an object side: a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having negative refractive power; upon varying a magnification, the first lens group being fixed with respect to the image plane, and each distance between the neighboring lens groups being varied; upon focusing, at least a portion of the fourth lens group being moved; and predetermined conditional expression(s) being satisfied, thereby variations in various aberrations upon varying magnification being superbly suppressed.

Abstract: A device for optically imaging at least a part of an object, the device having an optical axis and including a two-dimensional first array of first microlenses, having a first side intended to face the object, and a second side, opposite the first side, a two-dimensional second array of second microlenses, each first microlens being aligned with a second microlens on an axis parallel to the optical axis, wherein each first microlens comprises a first catoptric system, and preferably a first catadioptric system.

Abstract: An optical component including: a first block having a first refractive index and a first reflective surface; a first light absorbing member containing a first metal ion that absorbs light having a first specific wavelength and has a second refractive index different from the first refractive index; a first buffer layer between and in contact with each of the first light absorbing member and the first block, and having a third refractive index having a value between the first refractive index and the second refractive index, wherein the first light absorbing member, the first buffer layer, and the first block are arranged in this order in a first direction such that first block reflects light traveling in the first direction in a second direction different from the first direction on the first reflective surface.

Abstract: Provided is a highly reliable optical filtering device used as a spatial filter for an optical inspection apparatus and configured to prevent a shutter from sticking to a wall surface of a shutter opening. The optical filtering device includes the shutter openable and closeable by voltage control and a substrate having the shutter opening serving as a movable range of the shutter, in which the substrate includes a sticking prevention part configured to prevent the shutter from sticking to the wall surface of the shutter opening when the shutter is opened.

Abstract: The specification relates to a luminescence microscope comprising a first light source for generating an input light beam, a light modulator comprising a first active surface and a second active surface, for modulating the phase and/or amplitude of the light incident on the respective active surface, an objective lens for focusing the light into a sample so that an light intensity distribution is formed in the sample, wherein the luminescence microscope comprises a first beam displacement element for polarization-dependent generation of a first output light beam and/or a second output light beam forming an angle of less than 90°, wherein the first beam displacement element is arranged such that that the first output light beam impinges on the first active surface and the second output light beam impinges on the second active surface and a method for imaging a sample or for localizing or tracking emitters in the sample.

Abstract: A scanning microscope unit includes: a light source for outputting irradiation light; a photodetector; a MEMS mirror for scanning an irradiation light over an observation object, and for guiding an observation light toward the photodetector; a scanning lens for guiding the irradiation light scanned by the MEMS mirror, to a microscope optical system, and for guiding the observation light imaged by the microscope optical system, to the MEMS mirror; and a frame member formed in a frame shape to define an opening, and disposed on a side of the microscope optical system with respect to the scanning lens such that the irradiation light and the observation light pass through the opening. The frame member includes a calibration portion provided in a side portion defining the opening, and for generating calibration light including a sensitivity wavelength of the photodetector in response to an incidence of the irradiation light.

Abstract: A high effective refractive index structure may include one or more high effective refractive index materials disposed on a substrate. The high effective refractive index structure configured to respond to a light received at the high effective refractive index structure by at least generating one or more sub-diffraction limit illumination patterns for illuminating a specimen while one or more frames are captured of the illuminated specimen. The one or more sub-diffraction limit illumination patterns may include one or more speckle patterns. The one or more high effective refractive index materials may exhibit an effective refractive index equal to or greater than 3. Examples of high effective refractive index materials include hyperbolic metamaterial (HMM) multilayers, nanowire based hyperbolic metamaterials, and organic hyperbolic materials (OHM).

Abstract: Technology is disclosed herein that enhances imaging, sensing, and property detection of objects. In an implementation, a wave radiation source transmits waves through a complex medium towards an object. The complex medium may be engineered or naturally occurring. Wave modulators modulate the waves transmitted through the complex medium. The wave modulators may comprise spatial or temporal modulators. Secondary waves propagate back though the complex medium in response interaction between the waves and the object. Detectors detect wave properties from the secondary waves. A digital processor reconstructs data based on the secondary wave properties.

Abstract: An optical device and the prism module thereof are provided. The prism module includes a first prism, a second prism, and a third prism. The second prism is disposed beside the first prism. The third prism is adhered to the second prism. First light enters the first prism, is reflected plural times in the first prism, enters the second prism, and is emitted from the second prism. Second light enters the second prism, is reflected plural times in the second prism, and is emitted from the second prism. Third light sequentially passes through the third prism and the second prism, enters the first prism, is reflected plural times in the first prism, and is emitted from the first prism.

Abstract: Laparoscopes and other medical borescopes. In some embodiments, a laparoscope may comprise an electrically conductive portion and a shield portion configured to provide electromagnetic interference shielding for the electrically conductive portion. A tip assembly may be positioned at a distal end of the laparoscope, which tip assembly may comprise an image sensor configured to take images through a distal end of the laparoscope.

Abstract: An optical filter apparatus including an optical divergence device, operable to receive optical pulses and spatially distribute the optical pulses over an optical plane in dependence with a pulse energy of each of the optical pulses; and a spatial filter, located at the optical plane, operable to apply spatial filtering to the optical pulses based on a location of each of the optical pulses at the optical plane resulting from the spatial distributing.

Abstract: An actuator-sensor system for controlled diverting or deflecting of electromagnetic radiation in at least one axis (9), with an actuator (5) for mechanically moving a deflecting element (10) and with a measuring element (2) for sensing the position of the deflecting element (10), where the measuring element (2) includes a flat substrate (3) having at least one sensor element (4). Furthermore, the present disclosure relates to a fast steering mirror (FSM).

Abstract: An image display system includes an optical subsystem configured to emit a modulated light beam, and a scanning mirror for generating a reflected light beam that is scanned according to randomly selected or pseudo-randomly selected scan patterns to generate multiple image fields of a multiple interlaced scan image. A plurality of different scan patterns can be cycled through, randomly or pseudo-randomly selected, for the different image fields to reduce artifacts that may be observed while viewing a projected image.

Abstract: Provided is a laser scanner. The laser scanner includes a laser transmitter configured to output a laser radiated towards an object, a laser receiver configured to receive a laser reflected from the object, and an oscillating mirror of which a mirror surface is coated with a thin metal film to reflect the received laser reflected from the object and be penetrated by an electromagnetic wave incident from an outside the laser scanner. The received laser reflected from the object is reflected by the mirror surface of the oscillating mirror coated with the thin metal film and received by a laser receiver, and the electromagnetic wave incident from the outside the laser scanner penetrates the mirror surface of the oscillating mirror and then dissipates.

Abstract: A harsh environment sensor housing and cleaning system includes sensor enclosures with a rotationally symmetrical lens that can be cleaned in a lens washing space defined by the sensor enclosure. Each sensor enclosure includes a motor coupled to the lens to rotate the lens within the sensor enclosure, allowing a dirty portion of the lens move through the lens washing space for cleaning, and a clean portion of the lens to be placed in front of a sensor or camera within the sensor enclosure. A sensor enclosure and cleaning system incorporates a control unit, fluid control valves, a manifold, and fluid conduits to deliver wash fluid to each sensor housing. The fluid control valves have a reduced part count and can be used to control flow of liquids or gasses such as air.

Abstract: A method of producing an absorbing polarizer which has a plurality of regions where directions of absorption axes are different from each other and has a curved surface portion. The method includes a step of forming a layer of a composition for forming a photo-alignment film that contains a photo-alignment agent on a surface of a resin base material, a step of forming the alignment film by irradiating the layer with ultraviolet rays of linearly polarized light via a lens, and aligning the photo-alignment agent, and a step of coating a surface of an alignment film with a composition containing a liquid crystal compound and a dichroic substance. The alignment film has a curved surface portion and a plurality of regions where directions of an alignment regulating force are different from each other.

Abstract: The invention relates to a method for scanning field correction at least of a laser scanner device (300), wherein the method comprises the following steps: —providing a scatter pattern element (30) on a processing plane (11), wherein the scatter pattern element (30) comprises at least one scatter region (31) which is arranged in a scatter pattern (M); —passing over or scanning at least one part of the scatter pattern element (30) on the processing plane (11) by means of a laser beam (12) of the at least one laser scanner device (300) along scanner coordinates (x, y, z), wherein the laser beam passes through at least one window (20), preferably protective glass, between a deflection unit (10) and the processing plane (11); —detecting scatter radiation (13) which can be generated by scattering and/or reflection of the laser beam (12) when passing over or scanning the at least one scatter region (31); —creating a contour diagram (K) by correlating the detected scatter radiation (13) with the scanner coordinates

Abstract: An aerial image projector includes a first reflective element, a second reflective element, a first optical element, a first display device, and a second display device. The first reflective element transmits, in a second direction, a part of first image light traveling in a first direction, reflects, in a third direction, a part of second image light traveling in the second direction, and transmits, in the third direction, a part of third image light traveling in a fourth direction. The second reflective element retroreflects the first image light transmitted through the first reflective element as the second image light. The first optical element is between the first reflective element and the second reflective element and collects the first image light and the second image light. The first display device emits the first image light. The second display device emits the third image light.

Abstract: An image projection apparatus includes a first image irradiation unit, a light guide plate unit, and a diffraction grating unit. The first image irradiation unit is configured to emit first light. The light guide plate unit includes a first light incidence unit, an optical waveguide unit, and a first light emission unit. The first light incidence unit on which the first light is incident. The optical waveguide unit is configured to guide a part of the first light as guided light while totally reflecting the part of the first light. The first light emission unit is configured to emit a part of the guided light in a viewpoint direction. The diffraction grating unit is provided in the first light incidence unit. The first light emission unit includes a beam splitter provided in the optical waveguide unit and a retroreflection unit provided at an end of the optical waveguide unit.

Abstract: A wearable device includes a left optical stack having a left eyepiece configured to receive left virtual image light, a left accommodating lens, and a left compensating lens. The wearable device also includes a right optical stack having a right eyepiece configured to receive right virtual image light, a right accommodating lens, and a right compensating lens. An optical power of the left accommodating lens is equal in magnitude to an optical power of the left compensating lens, an optical power of the right accommodating lens is equal in magnitude to an optical power of the right compensating lens, and the optical power of the left accommodating lens and the optical power of the right accommodating lens differ by an offset amount.

Abstract: An image projection system in which a projection image is easier to see. An image projection system includes an image projection device which emits projection light that is linearly polarized light; a screen which is irradiated with the projection light emitted from the image projection device; and a light absorption anisotropic layer which is disposed between the image projection device and the screen and through which the projection light passes, the light absorption anisotropic layer contains a dichroic substance, and a transmittance central axis of the light absorption anisotropic layer is in a direction toward the screen.

Abstract: The present specification describes examples of position-based switching of display devices. An example augmented reality (AR) device includes an AR display device to render display data. The example AR device also includes a wireless communication device to transmit and receive wireless signals. The example AR device further includes a processor to: 1) determine a position of the AR device relative to a computing device based on wireless signals communicated with the computing device; and 2) switch an activity state of the AR display device based on the determined position of the AR device relative to the computing device.

Abstract: A near-eye display device includes a first optical cavity, a second optical cavity and a first reflector. The first optical cavity includes a first prism, a first reflective polarizing film prism, a phase delay film, a wedge-shaped lens and a second prism disposed in sequential order. The second optical cavity includes multiple array lenses disposed in sequence. The first reflector is disposed in correspondence with one end of the multiple array lenses and the first reflective polarizing film prism. The near-eye display device of the present disclosure can ensure that the near-eye display device has a small volume, a small thickness, and a large field angle.

Abstract: A processor of a wearable device may display, based on identifying a location in a first area based on data of a sensor, a visual object. The processor may be configured to adjust, based on an input indicating selection of the visual object, the state of the camera to a first state for recording media. The processor may be configured to identify whether the location of the wearable device moves to a second area in the first area. The processor may be configured to obtain, based on identifying that the location of the wearable device moves into the second area, media based on the camera of the first state. The present disclosure relates to a metaverse service for enhancing interconnectivity between a real-world object and a virtual object, and the metaverse service may be provided over a network based on 5th generation (5G) and/or 6th generation (6G) communication systems.

Abstract: An optical display system and a head-mounted display electronics apparatus are disclosed. The optical display system comprises: an image-generating apparatus, which generates image light; and an image-viewing apparatus, which guides the image light to eyes of a viewer, wherein the image-viewing apparatus comprises an imaging optical assembly and a multifocal assembly placed, the multifocal assembly has at least two optical powers and is programmable to choose at least one of the optical powers at a given time.

Abstract: An optical system and a method of forming the same. The optical system may include a light source configured to generate a light beam, the light beam being coherent or partially coherent. The optical system may also include a spatial light modulator configured to modulate a phase of the light beam. The optical system may further include an eyepiece for directing the modulated light beam to an eye of a viewer, the eyepiece arranged such that an optical distance between the spatial light modulator and a main plane of the eyepiece is greater than a focal length of the eyepiece. The spatial light modulator may include an active display area having a dimension of less than 2 mm.

Abstract: An augmented-reality (AR) eyewear display utilizes an optical waveguide having multi-layered optical gratings in a repeating arrangement. The optical gratings include varying depths, slope angles, lengths, and/or widths in order to tune the gratings to provide an improved AR eyewear display. By using the different configurations of two-dimensional or three-dimensional gratings disclosed herein in a waveguide of an AR eyewear display, optical characteristics of the waveguide are optimized to provide, e.g., high resolution and/or contrast, high display uniformity, high input coupling efficiency, and/or high output coupling efficiency. Accordingly, in some embodiments, aspects of the present disclosure enable lower-power AR eyewear displays to produce the same quality of display of a higher-power conventional AR eyewear display waveguide.

Abstract: A virtual image display system for displaying virtual images having expanded resolution and field of view is disclosed. The virtual image display system comprises a first light emitter emitting a plurality of first light signals to be projected into a viewer's eye; a first light direction modifier varying a light direction of the plurality of first light signals emitted from the first light emitter. The light direction of first light signals is varied at a first scan rate with respect to time within a first spatial range for displaying a first image frame with a predetermined number of light signals and the first scan rate is non-constant.

Abstract: A wearable device can include an inward-facing imaging system configured to acquire images of a user's periocular region. The wearable device can determine a relative position between the wearable device and the user's face based on the images acquired by the inward-facing imaging system. The relative position may be used to determine whether the user is wearing the wearable device, whether the wearable device fits the user, or whether an adjustment to a rendering location of virtual object should be made to compensate for a deviation of the wearable device from its normal resting position.

Abstract: The present disclosure relates to systems, methods, and computer readable media for modeling thermal effects within a multi-laser device. For example, systems described herein may include a plurality of laser devices that output energy streams having corresponding operating windows. One or more systems described herein may include a set of accumulators for tracking quantities of energy samples within operating windows and populating a queue representative of the tracked quantities. One or more systems described herein may additionally include filters and a summing module for determining temperature values for operating windows and synchronizing the temperature values with one another to determine an accurate system temperature for the multi-laser device. The features described herein facilitate synchronization of data for corresponding operating windows to provide an accurate determination of system temperature based on a combination of self-heating and crosstalk effects between multiple laser devices.

Abstract: An optical system provides two-stage expansion of an input optical aperture for a display based on a light-guide optical element. A first expansion is achieved using two distinct sets of mutually-parallel partially-reflecting surfaces, each set handing a different part of an overall field-of-view presented to the eye. In some cases, a single image projector provides image illumination to two sets of facets that are integrated into the LOE. In other cases, two separate projectors deliver image illumination corresponding to two different parts of the field-of-view to their respective sets of facets.

Abstract: The disclosure provides a diffraction optical waveguide, a design method thereof and a near-eye display device. The diffraction optical waveguide includes: a waveguide substrate; a coupling-in grating configured to couple image light into the waveguide substrate through diffraction; and a coupling-out grating configured to couple at least a part of diffracted light propagating thereinto out of the waveguide substrate through diffraction, wherein the waveguide substrate includes M layers of waveguide media, a catadioptric interface is formed between adjacent waveguide media, the diffracted light passes through the M layers of waveguide media in sequence and is split by the catadioptric interface, beams after light splitting propagate towards a coupling-out zone along different transmission paths in the M layers of waveguide media, each layer of waveguide medium has a different refractive index, a refractive index of an ith layer of waveguide medium being ni, an air refractive index being n0, and |ni?ni?1|?0.

Abstract: A positioning method and device, the method including: extracting multiple light spots from a current image frame, wherein the current image frame is an image currently collected by an extended reality device; determining an interference light spot in the multiple light spots according to information about a historical interference light spot, and removing the interference light spot in the multiple light spots, recognizing whether there is a light spot of a luminous light source in remaining light spots after removing the interference light spot, wherein the luminous light source is a light source set on a human-computer interaction apparatus, and the human-computer interaction apparatus is used for a user to interact with the extended reality device; determining a current pose of the human-computer interaction apparatus according to the light spot of the luminous light source recognized in the remaining light spots.

Abstract: The application discloses an optical waveguide device for image display and a display device. The optical waveguide device comprises a coupling-in grating and a coupling-out grating provided on a waveguide substrate. The coupling-out grating is used to couple, at least a portion of light propagating into it along an input direction, out of the waveguide substrate, and has a receiving end located upstream and a coupling-out end located downstream along the input direction. The receiving end is divided into a first grating area, a second grating area and a blank area between the first and second grating areas in a width direction perpendicular to the input direction. The blank area can prevent central light from being prematurely diffracted and splited by the coupling-out grating, thereby reducing the loss of light energy while ensuring effective coupling-out into an eyebox range, maximizing coupling-out efficiency, and improving the optical effect.

Abstract: A head-mounted display system includes a frame; an adjustable strap assembly that includes a first side strap coupled to the frame; a second side strap coupled to the frame; and an adjustment mechanism configured to adjust a circumferential size defined by the first side strap, the second side strap, and the frame; a see-through display assembly pivotably coupled to the frame; a first temple housing pivotably coupled to the frame and slidably coupled to the first side strap; and a second temple housing pivotably coupled to the frame and slidably coupled to the second side strap.

Abstract: A head-mounted display device relates to the field of electronic products.

Abstract: Disclosed is a pupil shaping arrangement for obtaining a defined pupil intensity profile for a metrology illumination beam configured for use in a metrology application. The pupil shaping arrangement comprises an engineered diffuser (ED) having a defined far-field profile configured to impose said defined pupil intensity profile on said metrology illumination beam. The pupil shaping arrangement may further comprise a multimode fiber (MMF) and be configured to reduce spatial coherence of coherent radiation.

Abstract: The present invention provides a detachable three-piece eyeglass frame comprising: a left-side frame component comprising a left temple arm, a left temple tip, and a left eye glass rim having a left clasp; a right-side frame component comprising a right temple arm, a right temple tip, and a right eye glass rim having a right clasp; and a nose-bridge component comprising slits on both sides. wherein the slits and clasps are configured to allow the clasps to: mechanically or magnetically attach to the nose bridge component when clasps are pushed into the respective slits; and release from the nose bridge component when attached clasps are pressed and/or pulled outwards.

Abstract: A double-sided composite spectacle lens and an inject mold therefor are provided. One surface of the spectacle lens is an aspherical surface, and the other surface is a designed aspherical surface used to inhibit astigmatism, and a spectacle lens formed by combining the two surfaces has two areas with different functions: optimizing optical performance, and thinning for aesthetics. By controlling the reduction of diopter and optimizing astigmatism on one surface, and inversely offsetting astigmatism on the other surface, the degree of astigmatism of the spectacle lens formed by combining the two surfaces is significantly lower than a diopter variation, and the degree of oblique astigmatism is significantly reduced. The aesthetic thinning effects of reducing the edge or center thickness of the double-sided composite spectacle lens are significantly enhanced by accelerating reduction of the diopter on one surface and changing from reducing to increasing the diopter on the other surface.