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42results about How to "Achieve zoom" patented technology

Refrigeration type common-caliber medium/long-wave infrared double-waveband double-view-field dual-shift zoom optical system

ActiveCN105372796AAvoid the problem of too large radial boreAccurate removalOptical elementsOptical axisDialyte lens
The invention discloses a refrigeration type common-caliber m medium / long-wave infrared double-waveband double-view-field dual-shift zoom optical system. The system comprises a first double-crescent positive lens, a second double-crescent positive lens, a first double-crescent negative lens, a third double-crescent positive lens, a second double-crescent negative lens, and a first light splitting prism for reflecting medium-wave infrared light and transmitting long-wave infrared light which are successively arranged along an optical axis. A reflection optical path of the medium-wave infrared light passing through the first light splitting prism is successively provided with a fourth double-crescent positive lens, a dual separate lens group, a first dual convex lens, a second dual concave lens, a sixth double-crescent positive lens and a seventh double-crescent positive lens, and a transmission optical path of the long-wave infrared light passing through the first light splitting prism is successively provided with an eighth double-crescent positive lens, a second dual convex lens, a third dual concave lens, a third double-crescent negative lens and a ninth double-crescent positive lens. The dual separate lens group is composed of a first dual convex lens and a fifth double-crescent positive lens. According to the system provided by the invention, a target image can be tracked, detected and captured in a high-accuracy manner.
Owner:XIAN TECH UNIV

Intelligent glasses for myopia

The embodiment of the invention relates to intelligent glasses for myopia. The intelligent glasses for myopia comprises a glasses frame, a ranging device which is arranged on the glasses frame, a leftvariable focal lens and a right variable focal lens, wherein each variable focal lens comprises a base sheet, a secondary sheet, transparent liquid, a pressure regulator and a chip; the chips are used for receiving current range data; when the current range data is less than a preset watching range threshold value, the current range data holding time is monitored; if the holding time is greater than the time threshold value, the chips are capable of generating a focal length adjusting instruction and sending to the pressure regulators; then pressure regulators are used for receiving the focallength adjusting instruction and changing the volume of the transparent liquid in an empty cavity based on the focal length adjusting instruction in order to adjust the pressure of the transparent liquid on the base sheets and the secondary sheets, so that the whole variable focal lens can be subjected to focal length change while the secondary sheets are deformed under the change of the pressurefrom the transparent liquid, and as a result, the focus variation is realized; after focus variation, eyes adjust to adapt to the varied focus, so that the focal length of the eyes are varied, and the tense eye adjusting muscle can be properly released, and the asthenopia is relieved.
Owner:北京五环伟业科技有限公司

Total space focus adjustable super-structure lens and design method thereof

The invention discloses a total-space focus-adjustable super-structure lens and a design method thereof, the total-space focus-adjustable super-structure lens comprises a first super-structure surface, a second super-structure surface and a third super-structure surface, and emergent wave phases corresponding to nano antennas of the first super-structure surface meet a formula: P1 =-a ((x1 + d) 2 + y12), the emergent wave phase corresponding to each nano antenna on the second metasurface meets the formula: P2 = a ((x2 + d) 2 + y22) (a (x22 + y22)) phi 1, the emergent wave phase corresponding to each nano antenna on the third metasurface meets the formula: P3 =-(a (x32 + y32)) phi 2, a and d are constants, x1 and y1 are first plane coordinates corresponding to each nano antenna on the first metasurface, x2 and y 2 are second plane coordinates corresponding to the nano antennas on the second metasurface, x3 and y3 are third plane coordinates corresponding to the nano antennas on the third metasurface, phi < 1 > and phi < 2 > are angles under a cylindrical coordinate system, phi < 1 > = tan-1 (y2 / x2), and phi < 2 > = tan-1 (y3 / x3). The planar structure of the super-structure lens avoids spherical aberration and chromatic aberration, the numerical aperture is increased, the super-structure lens is small in size and beneficial to integration, and free adjustment of the full-space focus can be achieved.
Owner:THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST

All-weather telescope type laser distance measurement instrument

The invention discloses an all-weather telescope type laser distance measurement instrument which is characterized in that a power supply circuit is connected with a delay power failure circuit; the delay power failure circuit is connected with a voltage detection circuit, a main control circuit, a switching control circuit, an azimuth measurement circuit, an angle measurement circuit, a laser distance measurement module, a Beidou positioning circuit, a thermal imaging camera, a DSP (digital signal processor) image processing module, an SD (secure digital) card video recording module, a video recording and zooming control circuit, a lens zoom drive circuit, a video switching circuit and a binocular display respectively, and is used for supplying power; the voltage detection circuit, the main control circuit and the switching control circuit are connected in sequence; the azimuth measurement circuit, the angle measurement circuit, the laser distance measurement module, the Beidou positioning circuit and the DSP image processing module are connected with the switching control circuit respectively; the thermal imaging camera, the DSP image processing module and the SD card video recording module are connected in sequence; the video recording and zooming control circuit is connected with the lens zoom drive circuit and the SD card video recording module; the DSP image processing module and the SD card video recording module are connected with the video switching circuit respectively; the video switching circuit is connected with the binocular display. The laser distance measurement instrument has the characteristics of all-weather use, integration of functions of laser distance measurement, thermal imaging, Beidou positioning, video recording and the like, small size, good portability for carrying, and good simplicity for operation.
Owner:KEDUN TECH CO LTD

Lens system

InactiveCN109387952AGuaranteed optical propertiesMeet the optical characteristicsOptical partsLensOptical propertyShape change
The embodiment of the invention relates to a lens system. The lens system comprises a substrate, an attached piece, transparent fluid and a pressure adjustor; the substrate and the attached piece arelenses with focal power and of gradational non-spherical shapes; and the attached piece can produce corresponding shape change along the change of the borne pressure; the substrate and the attached piece are connected by adopting a splicing way of hot-melting or optical gluing, or integrated and connected by adopting a molding in one technology; an enclosed cavity is formed between the substrate and the attached piece so as to adjust the volume of the transparent fluid; the pressure adjustor enables the volume of the transparent fluid in the enclosed cavity to change by changing the filling pressure of the transparent fluid, thereby enabling various surfaces of the lens system to deform; the optical characteristic is presented that the entire focal length is changed, and the zooming is realized; the lens system disclosed by the embodiment of the invention can be suitable for various optical instrument equipment so as to realize the zooming, the variation and like optical functions; theinstrument is small in volume, high in performance and low in cost.
Owner:北京五环伟业科技有限公司

Large-aperture glass-plastic hybrid zoom lens

The invention provides a large-aperture glass-plastic hybrid zoom lens which comprises a compensation group and a zoom group. Total focal power of the compensation group is negative, the total focal power of the zoom group is positive, and zooming is realized by changing the interval between the compensation group and the zoom group; the compensation group comprises a first lens with convex-concave negative focal power, a second lens with biconcave negative focal power, a third lens with convex-concave negative focal power and a fourth lens with convex-concave positive focal power which are sequentially arranged along the incident direction of light; the zoom group comprises a fifth lens with double convex positive focal power, a sixth lens with double concave negative focal power, a seventh lens with convex-concave positive focal power, an eighth lens with double convex positive focal power, a ninth lens with double convex positive focal power and a tenth lens with convex-concave negative focal power which are sequentially arranged along the incident direction of light. By using a mixed structure of the glass spherical surface and the plastic aspheric surface, the focal power is reasonably distributed, the excellent performance of no defocusing under the high and low temperature environment of -40 DEG C to 85 DEG C is realized, and large aperture and low cost are both taken into consideration.
Owner:JIANGXI PHENIX OPTICS TECH CO LTD

Ultrathin liquid film zoom lens based on liquid surface tension effect

ActiveCN110133769AImplement focal length changeLarge focal length change rangeLensFlat glassOptoelectronics
The invention discloses an ultrathin liquid film zoom lens based on a liquid surface tension effect, and belongs to the technical field of optical lenses. The zoom lens is mainly composed of a front lens, flat glass and a rear lens. The front lens comprises a front lens cavity, a front liquid injection controller, a front liquid channel and a front liquid. The rear lens comprises a rear lens cavity, a rear liquid injection controller, a rear liquid channel and a rear liquid. By controlling the volume of the front liquid in the front lens cavity, the front liquid surface deformation in the front lens is realized by utilizing the surface tension effect of the front liquid. By controlling the volume of the rear liquid in the rear lens cavity, the rear liquid surface deformation in the rear lens is realized by utilizing the surface tension of the rear liquid. The liquid surface deformation in the front lens and the rear lens is controlled by controlling the liquid surface deformation in the front lens cavity and the rear lens cavity, and the zoom of the liquid film lens is realized by controlling the combination of the liquid surface deformation of the front lens and the rear lens. Thezoom lens has the advantages of being small in size, light in weight, low in cost, high in zoom speed, high in zoom precision and the like.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Ultra-thin liquid film zoom lens based on liquid surface tension effect

ActiveCN110133769BImplement focal length changeLarge focal length change rangeLensFlat glassAnterior lens
The invention discloses an ultrathin liquid film zoom lens based on a liquid surface tension effect, and belongs to the technical field of optical lenses. The zoom lens is mainly composed of a front lens, flat glass and a rear lens. The front lens comprises a front lens cavity, a front liquid injection controller, a front liquid channel and a front liquid. The rear lens comprises a rear lens cavity, a rear liquid injection controller, a rear liquid channel and a rear liquid. By controlling the volume of the front liquid in the front lens cavity, the front liquid surface deformation in the front lens is realized by utilizing the surface tension effect of the front liquid. By controlling the volume of the rear liquid in the rear lens cavity, the rear liquid surface deformation in the rear lens is realized by utilizing the surface tension of the rear liquid. The liquid surface deformation in the front lens and the rear lens is controlled by controlling the liquid surface deformation in the front lens cavity and the rear lens cavity, and the zoom of the liquid film lens is realized by controlling the combination of the liquid surface deformation of the front lens and the rear lens. Thezoom lens has the advantages of being small in size, light in weight, low in cost, high in zoom speed, high in zoom precision and the like.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Refrigerated common-aperture medium/long infrared dual-band dual-field of view two-speed zoom optical system

ActiveCN105372796BAvoid the problem of too large radial boreAccurate removalOptical elementsDialyte lensOptical axis
The invention discloses a refrigeration type common-caliber m medium / long-wave infrared double-waveband double-view-field dual-shift zoom optical system. The system comprises a first double-crescent positive lens, a second double-crescent positive lens, a first double-crescent negative lens, a third double-crescent positive lens, a second double-crescent negative lens, and a first light splitting prism for reflecting medium-wave infrared light and transmitting long-wave infrared light which are successively arranged along an optical axis. A reflection optical path of the medium-wave infrared light passing through the first light splitting prism is successively provided with a fourth double-crescent positive lens, a dual separate lens group, a first dual convex lens, a second dual concave lens, a sixth double-crescent positive lens and a seventh double-crescent positive lens, and a transmission optical path of the long-wave infrared light passing through the first light splitting prism is successively provided with an eighth double-crescent positive lens, a second dual convex lens, a third dual concave lens, a third double-crescent negative lens and a ninth double-crescent positive lens. The dual separate lens group is composed of a first dual convex lens and a fifth double-crescent positive lens. According to the system provided by the invention, a target image can be tracked, detected and captured in a high-accuracy manner.
Owner:XIAN TECH UNIV

Camera module and imaging method

The invention provides a camera module and an imaging method, and the camera module comprises a first variable-focus optical lens and a second variable-focus optical lens, and the focal lengths of the first variable-focus optical lens and the second variable-focus optical lens can be adjusted. Zooming and focusing of the camera module can be realized by adjusting the focal length of the first variable-focus optical lens and the focal length of the second variable-focus optical lens. Therefore, the distance between the lenses does not need to be adjusted to realize zooming and focusing of the camera module, so that the camera module can be miniaturized.
Owner:NINGBO SEMICON INT CORP
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