36results about How to "Achieve continuous zoom" patented technology

The invention discloses an electronic product and a liquid crystal varifocus lens of the electronic product. A liquid crystal layer is sealed between an upper planar substrate and a lower planar substrate of the liquid crystal varifocus lens; the upper planar substrate and the lower planar substrate are provided with plane electrodes, respectively; corresponding plane electrodes are used as the inner surfaces; at least one of the plane electrodes of the upper planar substrate and the lower planar substrate is formed as a fresnel wave band pattern electrode; in the fresnel wave band pattern electrode, a width value of an nth annular wave band electrode is distributed according to a formula shown in the description (R1 is the radius of the first ring); adjacent annular wave band electrodes are connected through equivalent resistances and are led out through a first lead electrode and a second lead electrode, wherein the two lead electrodes are not intersected. In terms of design, according to the liquid crystal varifocus lens, on the basis that the requirements on liquid crystal lens infraction rate distribution are realized by using the voltage distribution of an electrode material oneself, the structure and the machining process of the substrate electrode are simplified, and the production cost is reduced; and an optical system of the electronic product adopts the liquid crystal varifocus lens so as to have a large continuous varifocus range and good effect.

The invention provides an optical lens, a lens module and a terminal. The lens module comprises the optical lens and a photosensitive assembly, wherein the optical lens is used for imaging a scene onan object side onto the photosensitive assembly; the optical lens comprises a lens barrel and a lens set accommodated in the lens barrel; the lens set sequentially comprises a first lens group, a second lens group and a third lens group from the object side to an image side; the first lens group comprises at least one first reflecting surface, and the first reflecting surface faces the image side;the second lens group comprises at least one second reflecting surface, and the second reflecting surface faces the object side, is opposite to the first reflecting surface and is used for reflectingreceived light to the first reflecting surface; and the lens module further comprises a motor, and the motor is connected with the first lens group or the second lens group so as to drive the first lens group or the second lens group to move in an optical axis direction. According to the optical lens, the lens module and the terminal, continuous zooming can be achieved under the condition of small optical thickness, and the structure is simple.

The camera module comprises a photosensitive chip, a first support, a first lens, a lens and a module shell, the lens and the photosensitive chip are oppositely arranged in the module shell, wherein the first support is movably arranged in the module shell, and the first lens is arranged on the first support. According to the camera module, the first lens is arranged on the first support and is opposite to the lens, and the second lens is arranged on the lens, so that the distance between the first lens and the second lens can be adjusted, and the camera module can realize continuous zooming through a single camera; thus, the space utilization rate of the electronic equipment is improved and the manufacturing cost of the electronic equipment is reduced.

The invention designs a continuous zoom lens. The continuous zoom lens comprises a focusing objective lens group, a zoom group, a compensation group, a lens tube and a three-curve groove zoom tube, wherein the focusing objective lens group realizes fine focusing through forward and backward movement, a focusing linear groove, a zoom linear groove and a compensation linear groove are formed in thelens tube, stray light eliminating threads are machined on the inner wall, and when the zoom group and the compensation group smoothly move in the lens tube, the optical distances of the zoom group and the compensation group are continuously changed; a pin penetrates through the curved groove of the three-curved groove zoom tube, the zoom linear groove of the lens tube and the compensation lineargroove and then is screwed on the zoom group and the compensation group; when the zoom motor group drives the three-curve groove zoom lens tube to rotate, the three-curve groove zoom tube drives the zoom group and the compensation group through the pin to smoothly move in the lens tube according to the positions of the curve grooves to achieve continuous change of the focal length of the zoom lens. The three-curve groove is adopted to push the zoom group and the compensation group to move to realize continuous zoom, so that the optical axis consistency is improved, and stray light can be prevented from being reflected into an imaging view field to influence the imaging quality.

The invention discloses an infrared lens with high definition, long focal length and long wave. The infrared lens comprises a front fixed group, a zooming group, a compensating group, a rear fixed group and a detector which are sequentially distributed along an optical axis from the object side to the image side, wherein the front fixed group consists of positive meniscus lenses of which convex surfaces face to the object side; the zooming group consists of biconcave lenses; the compensating group consists of first double convex lenses; the rear fixed group consists of a first negative meniscus lens, a second biconvex lens and a second negative meniscus lens which are sequentially distributed along the incidence direction of light. The infrared lens disclosed by the invention has the advantages that continuous zooming of high zooming ratio (25 to 300mm) can be realized, and a target is found at short focus and is identified at long focus; in addition, the target cannot be lost in the zooming process; the infrared lens can be matched with infrared detectors with high-definition, big area array and long wave and types of 1024*768 and 1280*1280.

The invention discloses a telescopic three-group continuous zoom optical lens, an imaging assembly and a mobile phone. The telescopic three-group continuous zoom optical lens comprises a lens main body. The lens main body comprises a lens barrel, a zoom lens group and a compensation lens group; the zoom lens group comprises a first lens group with negative focal power and a second lens group with positive focal power, the compensation lens group comprises a third lens group with negative focal power, and the first lens group, the second lens group and the third lens group can move forwards and backwards; and the focal lengths of the first lens group, the second lens group and the third lens group are f1, f2 and f3, the distances between the first lens group and the second lens group at a wide-angle end and a telephoto end are dw12 and dt12, and the distances between the second lens group and the third lens group at the wide-angle end and the telephoto end are dw23 and dt23. The following relational expression is satisfied, the application of the lens main body to electronic equipment with relatively thin thickness, such as a mobile phone and the like, is facilitated.

The invention discloses a lens system with a variable focus, and belongs to the technical field of optics. The lens system with the variable focus comprises a semi-reflective lens, a first holophote, a convex lens and an open container used for containing transparent liquid, wherein the open container can rotate by using the longitudinal central axis of the open container as a rotation axis, the rotating speed of the open container is adjustable, a second holophote is arranged at the bottom of the open container, and can reflect back incident light after the incident light penetrates through the transparent liquid, the incident light is firstly reflected to the surface of the transparent liquid in the open container by the semi-reflective lens, is refracted by the transparent liquid, and then is reflected by the second holophote, the reflected light is transmitted to the first holophote through the semi-reflective lens, and the first holophote reflects the light to the convex lens. The invention further discloses a zooming method of the lens system with the variable focus. The lens system with the variable focus and the zooming method of the lens system with the variable focus have the advantages of being low in implementation cost, flexible in operation, large in zooming range, capable of achieving continuous zooming and the like.

The invention relates to a self-adaption zooming system and a self-adaption zooming method, belonging to the technical field of zooming. The self-adaption zooming system comprises a front fixing group, a first zooming group, a second zooming group, a first compensation group, a second compensation group and a rear fixing group which are sequentially and coaxially arranged, wherein a detector is arranged on an output light path of the rear fixing group and is used for imaging the light of the rear fixing group; the output end of the detector is connected with a control component; the control component is connected with the first zooming group, the second zooming group, the first compensation group and the second compensation group in a control manner and is used for controlling the first zooming group, the second zooming group, the first compensation group and the second compensation group to move in the axial direction according to the imaging situation of the detector, thereby achieving continuous zooming of the system. By adopting the zooming system provided by the invention, the imaging quality is good within the range of 10-400mm, the zooming achieving route is simple, and a small amount of lenses are used.

The invention discloses a double-telecentric optical detection device with variable multiplying power. The double-telecentric optical detection device comprises an objective lens group, a diaphragm, an eye lens group and an imaging element. The objective lens group and the eye lens group are arranged on two sides of the diaphragm, the imaging element is arranged on a side of the eye lens group andis opposite to the diaphragm, the eye lens group comprises a first optical lens group, a optical lens group with variable multiplying power, a compensating optical lens group and a second optical lens group, the first optical lens group, the optical lens group with the variable multiplying power, the compensating optical lens group and the second optical lens group are sequentially arrayed from the diaphragm to the imaging element, and the optical lens group with the variable multiplying power and the compensating optical lens group can move relative to the first optical lens group and the second optical lens group, so that the focal power of the eye lens group can be changed. The double-telecentric optical detection device has the advantages that the optical lens group with the variablemultiplying power and the compensating optical lens group of the eye lens group can be adjusted according to to-be-tested objects with different sizes, accordingly, the continuous zooming purpose canbe achieved, the to-be-tested objects with the different sizes can be quickly detected by the double-telecentric optical detection device in real time, and cross-scale measurement effects can be realized by the double-telecentric optical detection device.

The invention discloses a camera module and terminal equipment. The camera module comprises a lens assembly, a first zooming mechanism, a second zooming mechanism and an image sensor, wherein the lens assembly comprises a solid-state optical lens group and a liquid-state lens which are arranged in a matched manner; the first zooming mechanism is used for adjusting the focal length of the liquid lens; the second zoom mechanism is used for driving the lens assembly to move along the optical axis direction so as to cooperate with the first zoom mechanism to adjust the focal length of the whole lens assembly; the image sensor is arranged perpendicular to the optical axis direction of the lens assembly and is used for collecting an imaging image corresponding to the light emitted from the lens assembly. Through the camera module, continuous zooming of the lens can be effectively realized, so that the focusing scale of the lens is further refined.

The invention discloses a TV low-light night vision integrated system, which is composed of a night sighting system and a daytime sighting system. The baffle, the third night-vision objective lens, the fourth night-vision objective lens, night-time filter, image intensifier, reflector, turning mirror and dichroic prism are projected on the CCD camera; the light in the daytime sighting system passes through the first zoom in turn The front fixed group of the objective lens, the front fixed group of the second zoom objective lens, the zoom group, the compensation group, the automatic iris, the rear fixed group, the diurnal filter and the dichroic prism are projected on the CCD camera. The products produced by adopting the technology of the invention are stable and reliable, and can be mass-produced and equipped with troops.

In order to solve the problems of the prior art such as the small sizes of the images projected by the conventional on-board head-up display systems and the limited information displayed by the projected images, the invention provides an on-board head-up display system comprising a display screen assembly and a three-reflection type optical assembly. The three-reflection type optical assembly comprises a zoom lens assembly, an image quality compensation lens assembly, and a front windshield compensation lens assembly, which are sequentially arranged on an optical path. The zoom lens assembly comprises a zoom lens body and a zoom lens focusing assembly. The image quality compensation assembly comprises an image compensation lens body and an image compensation lens focusing assembly. The on-board head-up display system is advantageous in that the continuous zooming can be realized, and the projected image can be magnified by a plurality of times even dozens of times, and the position of the image surface can be remained; the image surface quality is stable, and the image surface cannot be fuzzy or deformed because of the magnification; the abundant information can be provided for the driver in the limited space, and the technical guarantee can be provided for the enriching of the use functions of the on-board head-up display system.

The invention provides a small-size long-focus large-caliber continuous zooming optical structure, which comprises an all-reflective afocal optical system, a transmission type continuous zooming optical system and a focal plane, wherein the all-reflective afocal optical system comprises a main reflecting mirror and a sub reflecting mirror; the focus of the sub reflecting mirror is overlapped with the focus point of the main reflecting mirror; the main reflecting mirror is used for receiving light energy reflected by a target object; the sub reflecting mirror is arranged on a reflecting light path of the main reflecting mirror; the transmission type continuous zooming optical system is arranged on an emitting light path of the sub reflecting mirror; the focus plane is positioned on the focus surface. The incident light beam is subjected to caliber compression by using a prepositive afocal optical system; the continuous zooming function is provided through a subsequent continuous zooming transmission system assembly; the two systems are combined, so that the prepositive afocal optical system amplifies the focal length of the subsequent continuous zooming transmission system assembly; the function requirements of long focus length and great caliber of the whole system are met.

The invention discloses a low-illumination focusable indirect ophthalmoscope, and belongs to the field of indirect ophthalmoscopes, the low-illumination focusable indirect ophthalmoscope comprises an illumination system and a microscopic system, the illumination system is located on one side of the microscopic system, the illumination system is used for projecting light spots to an observed object, the microscope system is used for observing the observed object, the illumination system is configured to be a weak light source illumination system, the microscope system comprises an objective lens, an eyepiece unit and an image intensifier, the eyepiece unit comprises a focusing eyepiece, and the image intensifier is located in front of or behind the focusing eyepiece. According to the low-illumination focus-adjustable indirect ophthalmoscope, a low-illumination weak light source illumination system can be used, the defect that an examinee feels uncomfortable due to the fact that incident light is too strong in the prior art is fundamentally overcome, digital images can be collected in real time, teaching and computer graphic analysis are facilitated, in addition, the indirect ophthalmoscope further supports continuous zooming, and adjustment of magnification times is more flexible.

The invention discloses a liquid double lens set construction method based on a micro fluidic chip, relating to the optical device technology field and solving the problem that the regulation range of the prior art is small. The liquid double lens set construction method comprises steps of choosing two fluids which have two different refractive indexes and are not dissolved with each other, enabling the two fluids to pass through one lens cavity in a laminar flow, enabling the two fluids to form a three-layer structure, in which a high refractive fluid is clamped between two low refractive fluids in the cavity of the lens and enabling the three-layer structure to commonly constitute a lens assembly. The invention can control the curvature of the interface of the high refractive fluid and the low refractive fluid through controlling the speed rate of the two fluids and enables the lens assembly to take on the working form. The method disclosed by the invention can perform convergence, collimation and divergence continuous adjustment.

The invention discloses a mirror-design double-sided zoom lens. The zoom surface of the lens is a free form surface, the free form surface comprises two optical vertexes, one vertex is the highest point of the free form surface, and the other vertex is the lowest point of the free form surface. The two zoom surfaces have the identical design, the position of the highest point of the free form surface of one surface is corresponding to that of the highest point of the free form surface of the other surface, and the position of the lowest point of the free form surface of one surface is corresponding to that of the lowest point of the free form surface of the other surface.