61 results about "Optical lens design" patented technology

The invention relates to a reflector having reflection surface with facets for reflecting light beams and for generating a light field with a hollow basic element which presents a first end for accommodating an illuminant (mounting end), as well as a second end which represents a light outlet aperture, whereby for generating a specific light field contour with a given form of illuminant the forms of individual facets and their position relative to the optical axis of the reflector are selected specifically.

The 3D optical lens design method comprises: based on law of conservation of energy, dividing out some sub-areas as the light source energy equal to illuminant plane energy; selecting one point any of the point in one emergence line and corresponding equal-energy illuminant plane points as the initial point for target lens; iterative solving coordinate and normal vector for every discrete point to determine the lens surface. Compared with prior art, this invention is convenient and high efficient, and can save energy for wide application.

The invention discloses a lens module of a high-power LED streetlamp, which comprises a projected spherical surface similar to a semielliptical surface. The bottom of the projected spherical surface is connected with a planar bottom plate, a hollow spherical surface groove similar to a semielliptical surface is arranged at the center of the bottom of the projected spherical surface, the projected spherical surface is divided into a left semi-spherical surface and a right semi-spherical surface by centering the long axis, and a smooth-transition groove is arranged at the center of the left spherical surface. The long axis of the projected spherical surface is parallel to the short axis of the hollow spherical surface groove, and the distance delta d between projections on the horizontal plane of the two axes is larger than zero. All 180-degree light emitted from LED chips can be collected by a lampshade designed by fully-refractive secondary optical lens and can be redistributed to the assigned areas. Far-field angular distribution of light intensity of the LED streetlamp can be in bat wing distribution and light spot can be rectangular by the aid of light distribution of free curved surfaces, and further, the middle and the edges of the rectangular light spot can be more uniform, light cutting design of the lens can be realized and flare can be eliminated by means of the principle of marginal light rays.

An optical lens set includes a first lens element of an object-side surface with a convex portion in a vicinity of an optical axis, a second lens element of an image-side surface with a concave portion in a vicinity of its periphery and a sixth lens element of an image-side surface with a convex portion in a vicinity of its periphery. T₅min is the minimal distance from the object-side surface of the fifth lens element to the image-side surface of the fifth lens element and the fifth lens element has a fifth lens element thickness T₅ along the optical axis to satisfy T₅min/T₅≦0.6.

The invention is applicable to the technical field of endoscopes, and provides an endoscope binocular optical system with double objective lens and a single image sensor. The endoscope binocular optical system comprises a first optical lens set and a second optical lens set which are arranged in parallel, as well as the image sensor, wherein each of the first optical lens set and the second optical lens set comprises a first lens, a second lens, a diaphragm and a third lens which are arranged in sequence in the light incidence direction; a prism is arranged in the emergent direction of each third lens; the incidence surface and emergent surface of each prism are parallel; the image sensor is arranged in the emergent directions of the two prisms; the emergent surfaces of the two prisms are coplanar, and correspond to different areas of target surfaces of the image sensor. The invention provides an image sensor target surface partition technology, only the single image sensor is needed to be adopted, so that the working diameter of an endoscope can be effectively reduced, wider space is provided for the selection of the image sensor, the diameters of the two objective lenses are not needed to be greatly reduced, and further, the cost is greatly reduced; the system is a superfine endoscope optical system with relatively high cost performance, and can be applied to the fields of industrial inspection, medical treatment and the like.

The invention provides a high-strength antireflection film system structure which comprises a base material S-FPL51 and an antireflection (AR) film. The AR film comprises nine film structure layers from inside to outside, namely a first low-refractive-index film (L1), a middle-refractive-index film (M), a second low-refractive-index film (L2), a first high-refractive-index film (H3), a third low-refractive-index film (L3), a second high-refractive-index film (H2), a fourth low-refractive-index film (L4), a third high-refractive-index film (H3) and a fifth low-refractive-index film (L5). The high-strength antireflection film system structure is high-temperature-resisting and can be used for a long time, survival possibility is provided for stable performance of an optical instrument under the extreme environment requirements, and convenience is provided for design and manufacture of optical lenses.

The invention relates to a method for machining and estimating an optical lens which is designed as a semi-finished product, with a pre-finished form of a first side and a second side to be machined, in which a pre-specified form of a surface of the second side to be machined is estimated, wherein prior to estimating the pre-specified form of the surface of the second side, an actual form of the surface of the first side is measured using measuring means and is incorporated into the estimation of the pre-specified form of the surface of the second side.

The invention relates to an optimal design method of a multilayer diffraction optical element, which belongs to the technical field of optical design. The optimal design is not realized in the prior art. The method comprises the following steps of: (1) optimally selecting an optical material of the multilayer diffraction optical element according to a surface microstructure height formula of the multilayer diffraction optical element; (2) determining the bandwidth integration average diffraction efficiency distribution by using different design wavelength combinations in the entire working waveband; (3) determining the greatest bandwidth integration average diffraction efficiency and the relative design wavelength in the entire working waveband; and (4) substituting the design wavelength corresponding to the greatest bandwidth integration average diffraction efficiency into the surface microstructure height formula of the multilayer diffraction optical element, and calculating out the optimal surface microstructure height and the optimal design wavelength of the multilayer diffraction optical element. The method is used for designing the multilayer diffraction optical element used for a wide-waveband imaging optical system, and maximizes the bandwidth integration average diffraction efficiency of the multilayer diffraction optical element.

The invention relates to a design method of a honeycomb type lens array capable of improving stereo image display resolution, and belongs to the technical field of stereo video display. The design method mainly comprises the following steps of comparing imaging efficiency, and setting a design object; performing optical design and imaging property analysis of a honeycomb type lens array formwork; matching the parameters of a display plane and the honeycomb type lens array. Compared with the traditional rectangular lens array, the method has the advantages that by adopting the honeycomb type lens array, the effective area of an optical device is sufficiently utilized, the imaging area is increased, the resolution of a stereo image is obviously improved, a high-quality three-dimensional reproductive image is obtained, and the realistic and stereo feel of watching can be improved.

The invention discloses a millimeter wave high-resolution imaging medium lens antenna design method. The method is a design method combining optical lens design technology and millimeter wave antenna design theory, relating to the technical field of a millimeter wave antenna. By using an optical lens curved surface, the wave aberration and the geometrical aberration of a system are optimized by an optical design method, so that -3dB light spot diameter of feed source antenna units on an object plane is the smallest, and the gain inequality value of each feed source antenna unit is smaller than 1dB. The design method has the characteristics of simpleness and easy use, and the resolution ratio of the millimeter wave lens antenna is innovatively defined. The design method provided can be applied to a millimeter wave imaging system.

The invention discloses wireless video glasses. The wireless video glasses comprise an upper glasses body shell (1) and a lower glasses body shell (7), a display glasses frame part (4), a power supply input board (3), a receiving board (10), an LCD drive board (11), a focusing lens (9) and a sliding handle device (6) are mounted between the upper glasses body shell (1) and the lower glasses body shell (7), and the sliding handle device is connected with the focusing lens (9). The wireless video glasses are suitable for different people, and the interpupillary distance between the left and right eyes is adjustable. A blinder part is made of soft silica gel, when the blinder part is in contact with the face, people feels more comfortable. By means of the humanized optical lens, the user is avoided from eye fatigue when observing a wide-angle high-resolution image. A head band is elastic, the size is adjustable, so that the head band is suitable for everyone.

The invention provides an optical lens device. The optical lens device comprises a main lens and at least one secondary lens, wherein the main lens is provided with a first symmetric axis and a first optical axis, and the first symmetric axis is superposed with the first optical axis; and the at least one secondary lens is provided with a second symmetric axis and a second optical axis, the at least one secondary lens is arranged on four sides of the main lens, and the second symmetric axis is superposed with the second optical axis, wherein the main lens and the at least one secondary lens produce a uniform luminous field.

The invention provides a dental lamp and operation illuminating lamp dual-purpose device capable of realizing optical mode switching. The device comprises an illuminating lamp body, optical lenses andan LED light source module, wherein the LED light source module is fixed on the illuminating lamp body, the optical lenses comprise a first optical lens and second optical lenses, the first optical lens is arranged under the LED light source module, the second optical lenses are arranged on a secondary optical lens cover and located below the first optical lens, hollowed empty slots and the second optical lenses are arranged on the secondary optical lens cover at intervals, and the secondary optical lens cover rotates relative to the illuminating lamp body. The optical lenses are designed into two separate types, and the first optical lens is arranged in the position opposite to the LED light source module and can realize light gathering through the module during light emitting; and the second optical lenses can rotate relative to the first optical lens, so that the two kinds of the lenses are separated or matched for switching of a tooth diagnosis mode and a dental lamp mode.

The invention belongs to the technical field of optics, and discloses optical lens sets, an optical beam scanner and an optical beam scanning method in order to solve a problem of a blind area causedby traditional optical beam deflection. The optical beam scanning method comprises the following steps that an optical beam conversion device and at least two stages of optical lens sets are deployedon an optical path; the optical beam conversion device uniformly converts optical beams emitted by a light source into left-handed or right-handed circularly polarized light to be provided for the adjacent stage of optical lens set; a rotating device drives the corresponding optical lens set to rotate in order to drive a diffraction angle of a polarized grating and a wedge prism to rotate, so thateach stage of emergent light rotates along with the corresponding optical lens set and continuous scanning is achieved, wherein various stages of the optical lens sets are arranged at the at least one group of specific relative positions, so that the optical beams which are finally emitted to a scanning object do not deflect, and thus non-blind area scanning is achieved. After the blind area is scanned, the scanning of other areas is switched through the relative displacement changes between the lens sets.

The invention belongs to the field of optical lens design and particularly relates to a total reflection variable focal length short distance projection optics system based on object space telecentricity.The system comprises a light-emitting panel, a first reflecting mirror, a diaphragm, a second reflecting mirror, a third reflecting mirror and a fourth reflecting mirror.Object space telecentricity is adopted for the system, and subsequent installation and adjustment can be conducted conveniently; the key point lies in that the total reflection type variable focal length optical imaging system design is utilized, good spectrum adaptability is achieved, in addition, the focal length is adjustable, and therefore the system can be adjusted to be adapted to more occasions; short distance projection is achieved by the system, and the system has the advantages that projector distance is short, and the project screen is large.The system meets the requirement of the actual market for commodity adaptability, and the system is small in length, compact in size, low in weight and simple in structure and can be widely applied to the fields such as teaching and culture propaganda.

The invention discloses a uniform irradiation secondary optical reflector design method based on quantum measure. The method comprises the steps of dividing a light source and an irradiated plane into grids, finding a correspondence between the light source and the irradiated plane, computing a freeform surface, filling the freeform surface to form a reflector, taking optimal simulation software to perform simulated computation, and if uniformity of photon irradiance of the irradiated plane cannot meet the requirement, repeating the above steps, and modifying grid parameters, until the photon irradiance of the irradiated plane meets the requirement. Compared with the secondary optical design based on radiation measure and optical measure, the method provided by the invention is more accurate in the field of optical design of plant illumination lights, so that more uniform photon irradiance on a using surface of the plant illumination light is achieved instead of more uniform illuminance and optical radiancy on the using surface of the same, and the method can meet the plant need for light better, and is more beneficial to growth of the plant, wide in application range, and applicable to the fields of greenhouse supplementary lights or plant factories.

The invention discloses a lighting system design method based on deep learning. The lighting system design method comprises the steps of: acquiring the design parameters of a lighting system; importing the design parameters into a deep learning network model for training and obtaining a curved surface point set of the lighting system; fitting the curved surface point set to obtain a two-dimensional surface type curve, and rotating the two-dimensional surface type curve into a curved surface; and fitting the curved surface to obtain a surface equation of the lighting system. According to the method of the invention, the automatic operation process of an optical lens for illumination from parameters to design is realized; the uncertainty of manual design is reduced; the design difficulty ofthe optical lens for illumination is reduced; and the lower limit of the design level of the optical lens for illumination is improved; and in addition, system errors caused by human factors are reduced, and the accuracy expected by customers is improved.

The invention discloses a design method of a four-component zoom telecentric optical system and relates to the technical field of optical design. The design method comprises the steps as follows: (1)determining the structure form of the four-component zoom telecentric system; (2) supposing the distance between the front focal plane of the system and the first surface of the system is SF, the distance between the back focal plane and the last surface of the system is SF', the distance between a first component and a second component is d12, the distance between the second component and a thirdcomponent is d23 and the distance between the third component and a fourth component is d34; (3) making the distance D between the front and back focuses of the four-component zoom telecentric systemsatisfy the following condition: D is the sum of SF, d12, d23, d34 and SF'. The design method solves the technical problem that existing zoom optical design methods cannot realize zoom telecentric system design due to failure of control of system focal plane position parameters by use of the theory of Gaussian optics.

The invention discloses a diffraction telescope optical system design method based on off-axis four reflecting mirrors, and belongs to the field of optical design. The diffraction telescope optical system is formed by a diffraction objective lens, a relay lens and a diffraction correcting lens, the conventional transmission type relay lens and the diffraction correcting lens are improved to reflecting mirrors for off-axis, a reflecting mirror is additionally provided based on a three-reflecting-mirror system, an off-axis four-reflecting-mirror type eyepiece is formed, and a diffraction telescope optical system design method based on the off-axis four-reflecting-mirrors is proposed. Compared with the transmission type system or the diffraction telescope optical system based on off-axis three reflecting mirrors, the design method is simple and easy to perform, the quantity of lenses of the designed optical system is small, the change parameters are many, and excellent performance is achieved in a range of large visual field and wide waveband.