62 results about "Binary optics" patented technology

A diffractive micro-structure color wavelength division device makes use of diffraction theory, binary optics theory, and operation of phase iteration algorithm to its complex two-dimensional surface phase micro-structure. The color wavelength division device has a multi-wavelength modulation function and is capable of wavelength division and focus, thereby resulting in structural simplification and enhancement of light utilized efficiency of a color image system.

The present invention relates to a strap down SAL seeker that includes an optical system having an engineered diffuser for transforming a laser spot into a uniform distribution of optical energy with a predetermined shape. The predetermined shape is preferably a square “top hat” or uniform scatter pattern. The SAL seeker further includes a silicon quad detector, having a focal plane defined by at least two axes. The detector is operatively associated with the engineered diffuser, and it generates signals indicative of the position of the optical energy with respect to the focal plane of the detector.

The invention relates to a method for generating a Bessel beam array based on a Huygens' meta-surface, belonging to the technical fields of micro nano optics and binary optics applications. The methodcomprises the following steps: the phase of a Daman grating unit is optimized through a genetic algorithm to realize a uniform-power beam splitting function; the phases of Bessel beams are superimposed to obtain a total phase; a meta-surface is encoded according to the optimized total phase; the phases and amplitudes of outgoing beams are adjusted arbitrarily through the meta-surface by changingthe radius of a disk nanopillar unit; and the phase change of the transmitted light can cover the range from 0 to 2*Pi and the transmittance can be kept over 70% by changing the radius of the nanopillar unit, and a processing file of a corresponding medium meta-surface is generated. A Bessel beam array will be generated in the transmission direction when a sample is irradiated by laser, and the generation result is independent of the incident polarization. The method has the characteristics of long propagation distance and high efficiency.

The present invention relates to a generation method of a super-resolution optics pipeline. The generation method of the super-resolution optics pipeline comprises: a laser emits a laser beam of linear polarization, and the laser beam is vertically irradiated to a polarization converter or a vortex phase plate along a direction of an optical axis after collimation and beam expanding through a collimation and beam expander so as to convert to an angular polarized light or a vortex light; a binary optics device is designed, five annular grooves with 0 / [Pi] alternation are engraved on a glass substrate, so that the phase of a light beam having a sizing ring belt which is zero is invariant and the phase delay of a light beam having a sizing ring belt which is a [Pi] is [Pi] after the angular polarized light or the vortex light vertically irradiate into the binary optics device; the angular polarized light or the vortex light are focused by passing through a microobjective with high numerical aperture after the modulation of the binary optics device, the destructive interference of the modulated light beams is performed at the focus, and a super-resolution optics pipeline is obtained. On the basis of the phase adjustment of the binary optics device provided by the invention, and a super-resolution optics pipeline with dark focused faculas at the focus of the microobjective and is taken as a de-excitation light source, so that the three-dimensional super-resolution imaging is realized.

The invention provides an integrated micro-optics backlight module, which comprises an integrated micro-optics light-guiding plate and at least one light source. The light-guiding plate comprises a light incidence surface, a light emitting surface, a bottom surface opposite to the light emitting surface and three side faces, wherein the three side faces are connected with the light emitting surface and the bottom surface, a micro-optics light condensing structure designed by utilizing micro-optics and binary optic iterative algorithm is arranged on the light emitting surface, and a micro-optics reflection structure matched with the micro-optics light condensing structure on the light emitting surface is arranged on the bottom surface. The micro-optics reflection structure on the bottom surface can reflect and diffract light beams, and the micro-optics light condensing structure on the light emitting surface is matched with the micro-optics reflection structure on the bottom surface so that the light beams can be concentrated in an ideal view field to be emitted, and radiance and uniformity of emitted light are improved. The integrated micro-optics backlight module does not use a flat surface reflective sheet, a diffusing sheet and a double-layer crossed-prism lens in a typical backlight module but exceeds a typical multiple-layer structure in effect, the backlight module is highly integrated, utility rate of luminous energy is improved, and cost is reduced.

A concentrator including a volume of at least partially transmissive material and a plurality of facets disposed at at least one surface thereof. Each of the facets is disposed at a position dependent angle relative to the surface effective to cause an internal reflection of energy applied to the layer whereby the density of the applied energy varies as a function of position. In the illustrative implementation, the volume is an active medium, i.e., a slab. The slab has substantially parallel, planar upper and lower surfaces and first and second edges therebetween. A plurality of cladding layers are disposed on the upper and lower surfaces of the slab. The facets are provided in the cladding layers on the upper and lower surfaces of the slab and angled as a function of distance relative to the first or the second edge. The facets provide a Fresnel reflecting surface or a binary optic surface.

The invention discloses a method for metalizing an aluminide substrate through laser light and the corresponding aluminide substrate. Phase modulation is conducted on the laser light through an optical shaping element based on binary optics, so that flat-topped light is obtained, and the flat-topped light is irradiated onto the aluminide substrate in a focused mode through a galvanometer field lens system. Metallic aluminum is separated from aluminide through ultrahigh temperature generated by the laser light, so that an aluminum wire in a specific shape and of a specific size and distribution form on the aluminide surface is obtained; and then the conductive aluminum surface is metalized through an electroplating method or a chemical plating method. The area which is not subjected to laser light treatment is not metalized, the aluminum wire is directly formed on the aluminide substrate in the way that a computer is used for controlling galvanometer scanning, and accordingly patterning of a metal electrode is achieved. Compared with a traditional aluminide substrate metalizing method, the method for metalizing the aluminide substrate through laser light and the corresponding aluminide substrate have the advantages that the technique is simpler, the cost is lower, and patterning of the metal electrode can be achieved directly; and in addition, by using the optic shaping element, distribution of laser energy is made uniform, and the obtained metal thickness is also uniform.

The invention belongs to the field of design of imaging optical systems and discloses a wide-waveband and large-field-depth microscope objective optical system used for a flow cytometry. The wide-waveband and large-field-depth microscope objective optical system used for the flow cytometry aims at solving the problems that an existing microscope objective of the flow cytometry is narrow in waveband and small in field depth in the prior art. The wide-waveband and large-field-depth microscope objective optical system used for the flow cytometry comprises a first lens assembly, a second lens assembly, a cubic phase board, a third lens assembly, an eighth lens, a fourth lens assembly and a fifth lens assembly which are sequentially arranged along the optical axis from left to right; the fifth lens assembly is a plus lens assembly and comprises a binary diffraction optical element, the flow face, close to the flow cytometry, of the binary diffraction optical element is a binary optical diffraction face, the base face is a plane, the cubic phase board is located at the exit pupil position of the microscope objective optical system, and the face, deviating from a flow cytometry flow chamber, of the binary diffraction optical element is a cubic surface. After the binary diffraction optical element is introduced, chromatic aberration is well corrected. Meanwhile, after the cubic phase board is introduced, the field depth of the microscope objective is extended by twenty times to reach + / -16.8 micrometers.

The invention relates to a bimetallic sensitive layer grayscale mask manufacturing method used for batch production of binary optical elements, which comprises the following three steps of: manufacturing a bimetallic sensitive layer, designing a grayscale mask exposure control program, and performing laser exposure, namely plating a bimetallic film on the surface of a mask substrate to form the bimetallic sensitive layer; and exposing the bimetallic sensitive layer by adopting a laser direct-writing method according to sensitive characteristic of transmissivity of the bimetallic sensitive layer relative to laser intensity so as to form a grayscale mask of which the transmissivity is matched with diffraction microstructure design information of a binary optical element, wherein the grayscale mask comprises phase information of a plurality of binary optical elements, and the needed binary optical element is obtained through primary photoetching process and etching. Because the grayscale mask can be repeatedly used, the grayscale mask can be used for batch production of the binary optical elements.

The invention provides a telescopic truss type binary optical space camera and an on-orbit work method thereof and belongs to the field of spaceflight space repeatable unfolding. The telescopic truss type binary optical space camera aims to solve the problems that an existing space foldable and spreadable framework type supporting arm is complicated in structure, heavy and difficult to repeatedly fold and unfold. A partitioned type spreadable optical main lens of the telescopic truss type binary optical space camera is installed on a supporting arm through three ball hinges. The supporting arm comprises multiple framework type foldable units. The on-orbit work method comprises the steps that during launching, the supporting arm and the partitioned type spreadable optical main lens are in a folded mode, and the optical camera is in a launch closed mode; after injection, the supporting arm is switched to a unfolding mode and is unfolded; after the supporting arm is unfolded appropriately, the space camera is switched to an on-orbit operation mode, and the partitioned type spreadable optical main lens is unfolded; when the space camera is switched to an on-orbit closed mode, the supporting arm is folded, and the partitioned type spreadable optical main lens is unfolded. The telescopic truss type binary optical space camera is a large-caliber space camera.

The invention proposes a planar two-dimensional time grating displacement sensor, which is composed of two parts, a fixed array surface and a dynamic array surface arranged in parallel and oppositely up and down. The fixed array is composed of a base of the fixed array and excitation coils arranged on the surface of the base of the fixed array; the moving array is composed of the base of the moving array and the induction coil arranged on the surface of the base of the moving array. Using a single moving array surface to obtain magnetic signals at different positions on a fixed array surface through the principle of electromagnetic induction, using the theory of space-time coordinate transformation, the magnetic signal (spatial information) is converted into an electrical signal (time information) for processing, so as to obtain a two-dimensional space displacement. The present invention does not need to vertically install two linear displacement sensors, does not need binary optical devices prepared by complicated processes, and does not need complicated optical path design, and adopts ordinary semiconductor processing technology to prepare the dynamic array surface and the fixed array surface, so it has simple structure, Low cost, strong resistance to oil dust and shock vibration.

The invention discloses a high-efficiency laser direct-writing photoetching method capable of realizing a long-focal-depth small-focal-spot structure. Phase modulation is carried out through DOE, so that the diffraction limit can be exceeded, and the resolution and the focal depth of an optical pin are improved; movement of the optical pin on a photoresist plane can be achieved through optical scanning, and the laser direct writing photoetching speed is increased. The optical scanning system utilizes a two-dimensional galvanometer system to generate small-angle deflection of -10 degrees to +10degrees in the X-axis direction and the Y-axis direction. An X-axis galvanometer vibrates along the X-axis direction, a Y-axis galvanometer vibrates along the Y-axis direction, the galvanometers arerespectively driven by two drivers, incident radial polarized light passes through the X-axis galvanometer and the Y-axis galvanometer and then obliquely enters through a scanning lens, a sleeve lens,a pure-phase binary optical element and a high-numerical-aperture microscope objective in sequence, and then an optical pin which moves along the X axis and the Y axis and has resolution, focal depthand uniformity not affected by angle deflection is generated near a focal plane. And the resolution, the focal depth and the direct writing efficiency of laser direct writing photoetching are improved.

The invention discloses a binary optical lens with high dispersion and high refractive index. The binary optical lens comprises a lens experiment bearing platform and a chromatography laying clampingstructure, binary optical lens height adjusting mechanisms are arranged on the two sides of the upper end of the lens experiment bearing platform, one side of each binary optical lens height adjustingmechanism is connected with a binary optical lens angle adjusting structure, the chromatography laying clamping structure is arranged behind the binary optical lens, angle scale marks are arranged onthe surface of the binary optical lens angle adjusting structures, and a lens angle locking structure is arranged on one side of each angle scale mark. After polychromatic light enters the binary optical lens, because the binary optical lens has different refractive indexes for light with various frequencies and the propagation directions of the polychromatic light have different degrees of deflection, the polychromatic light is respectively dispersed and forms a spectrum when leaving the binary optical lens, so that the spectrum can be compared with the arranged spectrum, and the use convenience of the binary optical lens can be improved.

The invention discloses an objective lens distortion detection method and device. The objective lens distortion detection device comprises a laser illumination assembly, a marking target, a binary optical module and a wavefront detector; the target surface of the marking target is provided with arrayed marking holes corresponding to all fields of view of a to-be-measured objective lens; and the binary optical module is provided with a plurality of compensation zones. The detection device can be used for measuring the distortion of the measured objective lens, is not limited by the size of thefields of view, and can realize the distortion detection of objective lenses of large fields of view. According to the detection device, by means of the binary optical module, light emitted by the to-be-measured objective lens can be directly compensated, and the compensated light irradiate the wavefront detector, so that distortion can be measured; a device which records angle values through a turntable so as to measure distortion in the prior art can be replaced; the angle error of the turntable is avoided; and the accuracy of measurement is improved. The detection device can be placed vertically or horizontally so as to detect an objective lens placed vertically or horizontally, and therefore, the detection device can be used for detecting an immersion objective lens and a dry objectivelens, and the detection device can be used more widely.