Abstract: A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein the zoom lens system, in order from the object side to the image side, comprises: a first lens unit having positive optical power and comprising four lens elements; a second lens unit having negative optical power; and a third lens unit having positive optical power; wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit is moved along an optical axis direction so as to achieve variable magnification, and wherein the conditions are satisfied: 0.30<f1/fT<0.70 and Z=fT/fW>20.5 (f1 is a composite focal length of the first lens unit, fW is a focal length of the entire system at a wide-angle limit, and fT is a focal length of the entire system at a telephoto limit), an imaging device and a camera are provided.

Abstract: A zoom lens includes, in order from the object side thereof, a first lens unit having a positive refracting power, which is movable during zooming, a second lens unit having a negative refracting power, which is movable during zooming, a third lens unit having a positive refracting power, which is movable during zooming, a fourth lens unit having a positive refracting power, which is movable during zooming, a fifth lens unit having a positive refracting power, which is movable or stationary during zooming. The zoom lens further includes an aperture stop that moves integrally with the third lens unit during zooming. The first lens unit is located closer to the object side at the telephoto end than at the wide angle end, and the third lens unit is located closer to the object side at the telephoto end than at the telephoto end.

Abstract: A zoom lens system of the present invention has a plurality of lens units each composed of at least one lens element and, in order from the object side to the image side, comprises: a first lens unit having negative optical power and composed of two lens elements; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein in zooming, at least the first lens unit and the second lens unit move along an optical axis, on the image side relative to the second lens unit, an aperture diaphragm is arranged that moves along the optical axis integrally with the second lens unit during zooming, the second lens unit moves in a direction perpendicular to the optical axis, and the condition is satisfied: 1.00<(1?m2W)×m3W<1.50 where, Z=fT/fW>4.

Abstract: An image pickup apparatus includes an image pickup unit which forms a subject image on an image pickup device through an optical system to generate an image pickup signal; an adjustment unit which changes an optical zoom magnification with respect to the subject image; and a control unit which records image data as a moving image in a memory in response to a moving image recording command, the image data being obtained based on the image pickup signal, and stops recording the moving image for a time period during which the zoom magnification is changed.

Abstract: An imaging unit sequentially outputs original image data into which a light flux incident on an imaging area has been photoelectrically converted in a frame. An image processing unit generates image data of a first image size from original image data of a portion corresponding to a first area within the imaging area. A magnification generation unit generates image data of a second image size from original image data of a portion corresponding to a second area as a partial area within the first area. A transmission image generation unit extracts a part from the image data of the first image size and the image data of the second image size in the frame unit. A WLAN interface wirelessly sequentially transmits image data of the first image size and image data of the second image size extracted.

Abstract: An image forming optical system comprising, in order from the object side: a first lens group G1 that is fixed during zooming and includes a reflecting optical element for bending an optical path; a second lens group G2 having a negative refracting power and movable during zooming; a third lens group G3 having a positive refracting power; a fourth lens group G4 having a positive refracting power; and a rearmost lens group GR, wherein during zooming from the wide angle end to the telephoto end, the third lens group G3 moves on the optical axis toward the object side, characterized in that the rearmost lens group GR satisfies the following condition: 0.95<?Rw<2.5??(1-1).

Abstract: A method and apparatus for controlling zoom of a digital photographing apparatus using a touch screen. According to the method, a view angle may be modified by inputting a zooming gesture to the touch screen and zooming operation may be conveniently performed on a reproduced image.

Abstract: A zoom lens including in order from an object side to an image side: a positive first lens unit which does not move for zooming; a negative second lens unit for magnification, and a rear lens group including two or more lens units, in which: the first lens unit includes a first subunit not moving for focusing and a second subunit moving for focusing, and the first subunit includes two or more negative lenses and one or more positive lenses; and an average Abbe number and an average partial dispersion ratio of materials of the negative lenses included in the first subunit, average Abbe number and average partial dispersion ratio of materials of the one or more positive lenses included in the first lens unit, combined focal length of the negative lenses included in the first subunit, and focal length of the zoom lens at telephoto end are appropriately set.

Abstract: Disclosed herein is a zoom camera module, the zoom camera module concluding an optic zoom lens part which includes a plurality of lenses and alters the disposition of the plurality of lenses for change to the magnification, and an imaging sensor which converts light transmitted through the optic zoom lens part into an electric signal, the disclosed zoom camera module controlling the focus of a subject using an EDOF (Extended Depth of Field) technology.

Abstract: A zoom lens comprises first and fourth units which don't move for zooming, and second and third units moved during zooming. The first unit includes a front side partial unit which don't move for focusing, a movable partial unit moved for focusing, and a rear side partial unit which don't move for focusing, the rear side partial unit includes positive lenses and one or more negative lenses, and the following conditions are satisfied: ?1.2×10?3<(?pa??n)/(?pa??n), and ?n<30, where ?n is the smallest Abbe number of the material of the negative lenses, ?n is the partial dispersion ratio of the material of the negative lens of the smallest Abbe number, ?pa is the average of the Abbe numbers ? of the materials of positive lenses, and ?pa is the average of the partial dispersion ratio ? of the materials of the positive lenses.

Abstract: The present invention provides a camera and a camera zoom control method that can reduce power consumption at the time of zooming and shorten the time difference between the timing of a photographing instruction and the timing of actual photographing. Until a release button is operated, the optical zoom magnifying power of a lens is controlled to become a zoom magnifying power corresponding to an operation with respect to a zoom switch, and when the release button has been operated, the optical zoom magnifying power of the lens is controlled to become the zoom magnifying power corresponding to the operation with respect to the zoom switch.

Abstract: Disclosed are a zoom lens and an imaging apparatus having a high zoom ratio, a small total length, and a small overall size. A zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, and a fifth lens group having a positive refractive power which are arranged in this order from an object side. A gap between the lens groups is changed to change power. The zoom lens satisfies the following Condition expression 1: 0.05<|f4|/ft<0.25 ??[Condition expression 1] (where ft indicates the focal length of the entire system at a telephoto end and f4 indicates the focal length of the fourth lens group).

Abstract: An electronic device includes a touch sensitive display device, a camera device, and a processor that executes computer readable program code embodied in a computer readable storage medium. Some of the computer readable program code is configured to control magnification of a digital image from the camera device to generate a magnified digital image that is displayed on the display device in response to distance between at least two touch points detected relative to a surface of the display device. Some other computer readable program code is configured to initiate capture of the magnified digital image in response to cessation of detection of at least one of the two touch points.

Abstract: An illumination module and a portable electronic device using the same are provided. The illumination module comprises a shell, a light source and an optical lens. The shell has an opening, the light source is disposed within the shell to provide an illumination beam transmitted through the opening, and the optical lens is disposed within the shell and in a transmission path of the illumination beam. A power source is applied to the optical lens to adjust a reflective index of the optical lens, so as to adjust an irradiation angle of the transmitted illumination beam transmitted through the optical lens.

Abstract: According to the apparatus, the method, the program, and the recording medium of the present invention, the amount of feed of a first zoom lens and the amount of feed of a second zoom lens corresponding to a magnification of the first zoom lens and a magnification of the second zoom lens which are close to each other are associated, and the amounts of feed of the first zoom lens and the second zoom lens corresponding to an arbitrarily designated magnification are set. Accordingly, the magnifications of the first zoom lens and the second zoom lens can be accurately made almost equal over the entire zoom range. Since the magnifications of the first zoom lens and the second zoom lens are made equal on the basis of the amounts of feed, effective pixels do not decrease, unlike magnification correction using an electronic zoom.

Abstract: In an image sensing apparatus having a zoom lens, a zoom ring that designates driving of the zoom ring at the time of image sensing, a power switch, and a zoom controller of the zoom lens that is capable of changing a driving speed of the zoom lens, it is determined whether or not operation of the zoom ring is performed in combination with predetermined operation of the power switch. In a case where the operation is performed in combination, the driving direction of the zoom lens designated by the zoom ring is detected, and driving of the zoom lens is continued in the detected driving direction during performance of the predetermined operation of the power switch irrespective of continuation or discontinuation of the zoom ring operation.

Abstract: A zoom lens system of the present invention has a plurality of lens units each composed of at least one lens element and, in order from the object side to the image side, comprises: a first lens unit having negative optical power and composed of two lens elements; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein in zooming from a wide-angle limit to a telephoto limit during image taking, the individual lens units are moved along an optical axis such that an interval between the first lens unit and the second lens unit should decrease and that an interval between the second lens unit and the third lens unit should increase, so that magnification change is achieved, and wherein on the image side relative to the second lens unit, an aperture diaphragm is arranged that moves along the optical axis integrally with the second lens unit during zooming.

Abstract: An imaging lens includes an imaging lens system and an image sensor. The imaging lens system includes a first lens, a second lens, a third lens, and a fourth lens. The imaging module satisfies the formulas (1) D/T?1.1, (2) ?3.5<R2/F1<?1.5, (3) ?2.5<R3/F2<?0.5, and (4) 1.5<|R7/F4|<3.5, wherein D is the diagonal length of the sensing area of the image sensor, T is the length from the object surface of the first lens to the sensing surface of the image sensor, R2 is the radius of curvature of the image side surface of the first lens, R3 is the radius of curvature of the object side surface of the second lens, R7 is the radius of curvature of the object side surface of the fourth lens, F1, F2, F4 are the corresponding focal length of the first lens, the second lens, and the third lens.

Abstract: Disclosed is a portable video magnifying apparatus. The video magnifying apparatus of the present invention comprises a main frame; a short distance image detecting part which is pivotably disposed at the main frame so as to allow proximity photographing with respect to a subject on a right under surface of the short distance image detecting part or therearound; a long distance image detecting part which is provided with a long distance photographing lens for photographing a long distance subject and which is disposed at the main frame; and a display part which outputs one out of the short distance image, the long distance image and an image input through an external portion, which is selected by a user. Therefore, it is possible to help the weak-sighted or aged person.

Abstract: A position sensing device is provided which can include a first sensing unit for outputting a detection signal periodically changing in accordance with the movement of an object, a second sensing unit for sensing a reference position of the object, and an arithmetic unit for determining position data corresponding to the position of the object based on the detection signals, where the position sensing device can determine the relative position of a lens unit.

Abstract: A zoom lens includes a focus cam for converting a first rotation amount given upon a focus operation into a movement of the focus lens group and further converting a second rotation amount given upon a zoom operation into the movement of the focus lens group, and a focus cam follower engaged with the focus cam and operable to move in the focus cam. The focus cum follower rotates in the focus cum according to the rotation amount of the zoom driving unit to move the focus lens group. A lift amount of the focus cam is defined so that a rotation amount of the focus driving unit from a far end position to an infinite position when the rotation position of the zoom driving unit is at a wide-angle end becomes larger than the rotation amount when the rotating position of the zoom driving unit is at a telephoto end.

Abstract: A zoom lens system of the present invention has a plurality of lens units each composed of at least one lens element and, in order from the object side to the image side, comprises: a first lens unit having negative optical power and composed of two lens elements; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein in zooming, the lens units are moved such that an interval between the first lens unit and the second lens unit should decrease and that an interval between the second lens unit and the third lens unit should increase, so that magnification change is achieved, and wherein the condition is satisfied: 1.5<LT/(Ir×Z)<2.6 where, Z=fT/fW>4.

Abstract: A zoom lens system of the present invention has a plurality of lens units each composed of at least one lens element and, in order from the object side to the image side, comprises: a first lens unit having negative optical power and composed of two lens elements; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein in zooming, at least the first lens unit and the second lens unit move along an optical axis, on the image side relative to the second lens unit, an aperture diaphragm is arranged that moves along the optical axis integrally with the second lens unit during zooming, the second lens unit is, in order from the object side to the image side, composed of a first cemented lens element by cementing two lens elements and a second cemented lens element by cementing two lens elements, and the condition is satisfied: 2.00<fG2a/fG2b<3.00 where, fG2a, fG2b: focal lengths of the first and second cemented lens elements.

Abstract: A zoom lens system of the present invention has a plurality of lens units each composed of at least one lens element and, in order from the object side to the image side, comprises: a first lens unit having negative optical power and composed of two lens elements; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein in zooming, the lens units are moved such that an interval between the first lens unit and the second lens unit should decrease and that an interval between the second lens unit and the third lens unit should increase, so that magnification change is achieved, wherein the first lens unit is, in order from the object side to the image side, composed of a first lens element having negative optical power and a second lens element having positive optical power, and wherein the condition is satisfied: 0.50<fL2/fT<1.00 where, Z=fT/fW>4.

Abstract: A zoom lens system of the present invention has a plurality of lens units each composed of at least one lens element and, in order from the object side to the image side, comprises: a first lens unit having negative optical power and composed of two lens elements; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein in zooming, the lens units are moved such that an interval between the first lens unit and the second lens unit should decrease and that an interval between the second lens unit and the third lens unit should increase, so that magnification change is achieved, and wherein the condition is satisfied: 2.50<tan (?W)×Z<6.00 where, Z=fT/fW>4.0, ?W>35, fT, fW: focal lengths of the entire system at a telephoto limit, a wide-angle limit, ?W: a half value of maximum view angle at a wide-angle limit.

Abstract: An imaging apparatus has the function of an optical zoom which optically converts the magnification of an image and the function of an electronic zoom which changes the size of an image by electrical signal processing. The function of the electronic zoom at least operates when the optical zoom is not set at the telephoto end. A total magnification is determined by changing magnification by the optical zoom and changing magnification by the electronic zoom. A pixel count s1 of an electronic imaging device, a pixel count s2 of a rectangle including the pixels on an imaging device which are used by the electronic zoom, and a pixel count s3 of an output satisfy s1?s2>s3 or s1>s2?s3.

Abstract: An imaging unit outputs a video signal at a frame rate higher than a standard frame rate. During a zoom operation period or a period including the zoom operation period and periods before and after the zoom operation, a video signal from the imaging unit is recorded in a recording medium at a high recording frame rate. Other than this period, a video signal is recorded in the recording medium at the standard frame rate. The recording frame rate and zoom operation information is recorded as metadata in the recording medium. During reproduction, based on a set reproduction mode, thinning processing is carried out on a video signal recorded during a zoom operation, and the processed signal is output at the standard frame rate. In this way, it is possible to change a frame rate in view of a photographer's intention and assure compatibility with existing viewing and reproduction environments.

Abstract: A zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, which are arranged in this order from an object side. The gap between the lens groups is changed to change power. The third lens group includes at least two partial lens groups. One of the partial lens groups is a camera shake correction group and is moved in a direction vertical to an optical axis to correct a camera shake. The camera shake correction group includes two single lenses, and at least one of the single lenses is a plastic lens.

Abstract: The first lens group comprises a positive lens and a negative lens, and the total number of lenses in the first lens group is 2. The second lens group consists of, in order from the object side, a front unit of negative refracting power and a rear unit of positive refracting power. The third lens group consists of, in order from the object side, a front unit of positive refracting power and a rear unit of negative refracting power. The fourth lens group comprises a positive lens component, and the total number of lens components in the fourth lens group is 1. The front unit of the second lens group comprises a negative lens component, and the total number of lens components in the front unit of the second lens group is 1. The rear unit of the second lens group comprises, in order from the object side to the image side, a negative lens and a positive lens, and the total number of lenses in the rear unit of the second lens group is 2.

Abstract: Disclosed herein is a method of compensating an imager-created image for a distortion.

Abstract: A zoom optical system comprising, in order from the object side, a first lens unit with negative power, a second lens unit with positive power, a third lens unit with positive power, and a fourth lens unit, wherein spacing between the first lens unit and the fourth lens unit is fixed to an image surface, and the second lens unit and the third lens unit are moved on an optical axis so as to change spacings between the respective lens units when the magnification of the zoom optical system is changed. The third lens unit comprises lens elements more than three, including an aperture stop, at least a lens element with positive power and at least a lens element with negative power, and the most image-side lens element of the third lens unit is a meniscus lens element with a concave surface facing the image side.

Abstract: The present invention relates to a zoom (magnification variable) lens optical system that is used for a mobile phone camera or a digital camera. The zoom lens optical system includes, along a light axis in order of arrangement from an object side, a first lens group having a negative refractive power and comprising a prism provided with a reflective surface for bending a light path by reflecting light passed through the first lens at an angle of 90°, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and a stop, wherein the variation of magnification is performed by moving at least two of the second to fourth lens groups.

Abstract: A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit.

Abstract: A hands-free wireless wearable GPS enabled video camera and audio-video communications headset, mobile phone and personal media player, capable of real-time two-way and multi-feed wireless voice, data and audio-video streaming, telecommunications, and teleconferencing, coordinated applications, and shared functionality between one or more wirelessly networked headsets or other paired or networked wired or wireless devices and optimized device and data management over multiple wired and wireless network connections. The headset can operate in concert with one or more wired or wireless devices as a paired accessory, as an autonomous hands-free wide area, metro or local area and personal area wireless audio-video communications and multimedia device and/or as a wearable docking station, hot spot and wireless router supporting direct connect multi-device ad-hoc virtual private networking (VPN).

Abstract: A zoom system (10) for an optical stereo device is provided. The zoom system (10) comprises a front plate (30) and a lens plate (60) disposed in a fixed spatial relationship and defining two optical paths within the zoom system (10). The zoom system further comprises a zoom plate (40) having two lens assemblies (45a, 45b), wherein the zoom plate (40) is disposed between the front plate (30) and the lens plate (60), and a compensation plate (50), wherein the compensation plate (50) is disposed between the zoom plate (40) and the lens plate (60).

Abstract: A monitoring camera which can realize a tracing function that allows simple tracing of an object. An image shooting unit repeatedly executes a cycle of processing including a shooting processing, an image analyzing processing and a motor driving processing. An image analyzing unit analyzes an image. A motor control unit controls a motor. The monitoring has a first mode of causing the image analyzing unit to obtain a first motor driving target value and causing the motor to start turning during the motor driving processing, and a second mode of obtaining a second motor driving target value based on a motor driving history and causing the motor to start turning in parallel to the image analyzing processing.

Abstract: An imaging apparatus comprises an optical magnification changing mechanism which optically changes a magnification of an image, and an electronic magnification changing mechanism which reduces or expands a magnification with respect to image data by signal processing, the imaging apparatus providing a magnification-changed image according to a predetermined magnification based on the optical magnification changing mechanism and the electronic magnification changing mechanism. The optical magnification changing mechanism has at least two magnifications W and T (W<T) which are discrete each other, and has a switching mechanism which, when a predetermined magnification M (W<M<T) has been set, switches an image obtained by the magnification W and an expanding conversion using the electronic magnification changing mechanism and an image obtained by the magnification T and a reducing conversion using the electronic magnification changing mechanism.

Abstract: An image capturing apparatus is disclosed. The apparatus comprises optics for forming an image on an image plane; an image sensor arranged at the image plane and arranged to transform the image to an image signal to form an initial image; an image analyzer arranged to receive the image signal, to find at least one object in the initial image, and to determine at least one zoom area for each found object; an image cut generator arranged to define a result image to comprise at least one of the at least one determined zoom areas; and a storage memory arranged to store the defined result image. A method and computer program for the apparatus are also disclosed.

Abstract: In a digital camera 1, a storing means stores feature quantities of a subject area in an image, and a search point setting means sets a plurality of search points in the subject area. Next, an updating means updates coordinates of the set plurality of search points using random numbers. Then, a weight setting means compares feature quantities of the updated search points with the stored feature quantities, and sets a weight for each search point based on similarity. Next, a sorting means sorts the search points depend on those weight, and a variance acquiring means calculates the variance of the sorted search points. Then, an angle-of-view adjusting means determines the amount of adjustment for the angle-of-view based on the calculated variance.

Abstract: An object of the present invention is to provide an imaging apparatus capable of obtaining a sufficient resolution in a picture signal for zooming in on an output signal of an image pickup device by means of an electronic zoom process and a control method thereof. To attain this object, a timing generator generates a timing signal for controlling timing for reading charges to an image pickup device and the timing for mixing or transferring the charges. A zoom control portion determines a scaling factor for, by signal processing, expanding or reducing picture data generated based on the output signal of the image pickup device. The zoom control portion also determines the number of mixed pixels and a cutout range of the charges in the image pickup device. A vertical scaling factor control portion controls the timing generator so that mixture of the charges and charge transfer will be compliant with the number of mixed pixels and the cutout range respectively as determined by the zoom control portion.

Abstract: A zoom lens system according to the present invention, from an object side to an image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, and a fourth lens unit having positive optical power. In zooming, the first to the fourth lens units all move along the optical axis. The conditions (1): 0<?(f4·fW·tan ?)/LW<0.13 and (2): 0.05?f3/f4?0.97 are satisfied (where, 16<fT/fW, ?>35; ? is a half view angle at a wide-angle limit; LW is an overall optical axial length of the entire system at a wide-angle limit; f3 is a focal length of the third lens unit; f4 is a focal length of the fourth lens unit; fT T is a focal length of the entire system at a telephoto limit; and fW is a focal length of the entire system at a wide-angle limit).

Abstract: Provided is a zoom lens system including a compact focusing lens unit and having a suppressed change in image magnification at the time of movement of the focusing lens unit. The zoom lens system of the present invention includes, in order from an object side to an image side, a first lens unit G1 having negative optical power, a second lens unit G2 having positive optical power, a third lens unit G3 having positive optical power, and a fourth lens unit G4 having negative optical power. The fourth lens unit G4 moves to the image side along an optical axis at the time of focusing from an infinity in-focus condition to a close-point in-focus condition.

Abstract: A zooming optical system having six lens groups includes in order from an object side, a first lens group having a positive refracting power, which is fixed at the time of zooming, a second lens group having a negative refracting power, which is movable at the time of zooming, a third lens group having a positive refracting power, which is fixed at the time of zooming, a fourth lens group having a positive refracting power, which is movable at the time of zooming, a fifth lens group having a negative refracting power, which is movable at the time of zooming, and a sixth lens group having a positive refracting power, which is fixed at the time of zooming, and the first lens group includes a reflecting optical element for folding an optical path, and the third lens group includes an aperture stop, and the fifth lens group includes a single lens, and the zooming optical system satisfies the following conditional expression 0.5?f1/?(fw·ft)?2.

Abstract: An iris recognition camera is provided which includes a driving barrel configured to support a lens, a moving unit configured to reciprocatingly move the driving barrel to perform both focus and zoom operations, and a position sensor configured to detect a position of the driving barrel.

Abstract: A zoom lens system according to the present invention, from an object side to an image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, and a fourth lens unit having positive optical power. In zooming, the first to the fourth lens units all move along the optical axis. The condition (8): 0.15<dG3/dG<0.27 is satisfied (where, 16<fT/fW, ?>35; dG3 is an optical axial center thickness of the third lens unit; dG is a sum of the optical axial thicknesses of the first to the fourth lens units; ? is a half view angle at a wide-angle limit; fT is a focal length of the entire system at a telephoto limit; and fW is a focal length of the entire system at a wide-angle limit). As a result, the zoom lens system has a reduced size and still realizes a wide view angle at a wide-angle limit, as well as a remarkably high zooming ratio and high performance.

Abstract: A zoom lens system, in order from an object side to an image side, comprising a first lens unit of positive power, a second lens unit of negative power, a third lens unit of positive power, and a fourth lens unit of positive power, wherein the first lens unit is composed of three or fewer lens elements, wherein the second lens unit is composed of three lens elements, wherein in zooming, the first to the fourth lens units are moved individually along an optical axis such that air spaces should vary, so that variable magnification is achieved, and wherein the conditions are satisfied: 5.50?fG1/fW?7.92, ?W?35 and fT/fW?10 (fG1 is a composite focal length of the first lens unit, ?W is a half view angle at a wide-angle limit, and fT and fW are focal lengths of the entire system respectively at a telephoto limit and at a wide-angle limit), an imaging device and a camera are provided.

Abstract: A zoom lens system, in order from an object side to an image side, comprising a first lens unit of positive power, a second lens unit of negative power, a third lens unit of positive power, and a fourth lens unit of positive power, wherein the first lens unit is composed of three or fewer lens elements, wherein the second lens unit is composed of three lens elements, wherein in zooming, the first to the fourth lens units are moved individually along an optical axis such that air spaces should vary, so that variable magnification is achieved, and wherein the conditions are satisfied: tan 2?W×m2W??1.78, tan 2?W×|fG2|/fG1?1.24, ?W?37 and fT/fW?10 (m2W is a lateral magnification of the second lens unit at a wide-angle limit, fG1 and fG2 are composite focal lengths of the first and the second lens units, ?W is a half view angle at a wide-angle limit, and fT and fW are focal lengths of the entire system respectively at a telephoto limit and at a wide-angle limit), an imaging device and a camera are provided.

Abstract: A resolution proportional digital zoom system comprises a CCD imaging device with over a million pixels resolution. A standard fixed-1X optical lens is fitted to the imager. A communication channel with a limited bandwidth is used to transmit video. Such bandwidth is substantially less than the imager's full resolution times its frame rate. A user is provided with controls to pan and zoom within the imager's field of view. The pixel resolution is proportionally controlled such that video output data rate on the communication channel is optimal and held within maximum limits at any pan/zoom setting.

Abstract: A clipping processing portion is provided with: a main subject detection portion which detects the location of a main subject from an input image; a clip region setting portion which sets the clip region that is a region including the main subject; and a clipping portion which clips an image of the clip region from the input image to produce a clipped image. There is further provided a zoom control portion which controls the optical zoom magnification of the image sensing portion based on the clip region set by a clip region setting portion, and the optical zoom magnification is controlled such that the input image has an appropriate angle of view.

Abstract: An apparatus includes a zoom lens and an image pickup element. The zoom lens includes an optical path reflecting lens group including a reflecting member and having a positive refracting power, a movable negative lens group that is disposed in the optical path on the image side of the optical path reflecting lens group, has a negative refracting power, and moves during zooming, a movable positive lens group that is disposed in the optical path on the image side of the movable negative lens group, has a positive refracting power, and moves during zooming, and an aperture stop disposed in the optical path between the movable negative lens group and the movable positive lens group. The optical path reflecting lens group is a lens group located closest to the object side in the zoom lens.