Abstract: Provided is a method and apparatus for measuring a distance between an object and a user using a camera module. According to the method, when the camera module is driven, a zooming function is performed to examine whether an image is formed on an image device. When the zooming function is completed, a focusing function is performed to examine whether focusing is adjusted. When focusing is adjusted, a focal length “f” and a distance “b” between a lens and the image device are calculated. Thereafter, a distance “a” between an object and a user is calculated and displayed using a lens Equation. Since a distance between a desired object and a user can be measured only using a zoom function and a focusing function of an existing camera module without a separate distance measurement device, the distance between the desired object and a user can be easily measured without increase in a volume of an apparatus or manufacturing costs.

Abstract: Provided is a photographic lens which prevents lenses disposed in the front and the rear of a prism from physically interfering with each other and in which the optical axes of the prism and the lenses disposed in the front and the rear of the prism are precisely aligned with each other. A photographic lens is a zoom lens that deflects the optical path of a prism and performs zooming by moving a second lens group and a third lens group disposed in the rear of the prism. A notch having a circular shape is formed on the prism side of a negative lens adjacent to the prism along the outer periphery of the lens. During zooming, when the second lens group is moved to the position close to the prism, the edge of the second lens group is fitted into the notch.

Abstract: A camera assembly that generates a high-quality self portrait may include a plurality of reflecting surfaces, such as an array of mirrors or a multi-faceted reflecting element. Each reflecting surface may be arranged so as to assist the user align the camera by rotational movement and/or translated movement to achieve a different field of view for the camera assembly for each reflecting surface. In this manner, the user may sequentially use the various reflecting surfaces to capture an image corresponding to each reflecting surface so that each image corresponds to a different portion of a scene. These portions of the scene may have some overlap and may be stitched together to form a panoramic self portrait that includes the user and portions of the scene behind the user.

Abstract: The lens barrel includes a flexible wire, a first supporting frame and a second supporting frame. The flexible wire has a first end with at least one terminal, a second end with at least one terminal and a bent portion disposed between the first and second ends. The bent portion includes a plurality of part overlapping each other. The first supporting frame supports the first end. The second supporting frame is movably disposed in a first direction with respect to the first supporting frame and supports the bent portion.

Abstract: The lens barrel includes a first supporting frame, an optical element, a second supporting frame, and a guide shaft. The first supporting frame has a first base portion and a first seat portion that projects in a first direction from the first base portion. The second supporting frame supports the optical element and has a first bearing portion. The guide shaft is coupled to the first seat portion and inserted into the first bearing portion. The first seat portion is disposed within the circumference of the guide shaft when viewed in the first direction.

Abstract: A lens barrel that is capable of decreasing a barrel length under a retracted condition by simplifying a configuration. The lens barrel changes a focal length by moving first and second lens groups in an optical axis direction. A light-amount adjusting member is located between the first and second lens groups. First, second, third holding frames hold the first lens group, the second lens group, and the light-amount adjusting member, respectively. A cam mechanism moves the first, second, and third holding frames in the optical axis direction so that a part of the second lens group is inserted into the aperture of the light-amount adjusting member and concave and convex surfaces of the first and second lens groups are overlapped in the optical axis direction under a retracted condition. The aperture diameter of the light-amount adjusting member is enlarged when shifting to the retracted condition from a shooting condition.

Abstract: A zoom lens includes a zoom optical system including movable lens groups for zooming which are moved between a ready-to-photograph position and an accommodated position, a diaphragm mechanism, and a lens shutter. One of the movable lens groups serves as an aperture-control lens group. The diaphragm mechanism and the lens shutter are positioned in front of and behind the aperture-control lens group and are movable relative to the aperture-control lens group in the optical axis direction. The diaphragm and the lens shutter are moved to close positions to the aperture-control lens group when the movable lens groups are moved to the accommodated position. Both apertures of the diaphragm mechanism and of the lens shutter are widely opened to allow the aperture-control lens group to partly enter the apertures when the diaphragm mechanism and the lens shutter are moved to the close positions.

Abstract: A camera system includes a camera apparatus for shooting an object to output an image signal and a camera control apparatus for controlling the camera apparatus such that the camera apparatus shoots a plurality of images constructing a panorama image in a predetermined order while changing zoom magnifications based on previously-determined setting and making a panorama image by joining a plurality of images with different zoom magnifications shot by the camera apparatus together.

Abstract: A drive control apparatus for a lens apparatus having a zoom lens movable between a telephoto end and a wide-angle end according to the present invention comprises a selecting member which selects a zoom position between the telephoto end and the wide-angle end, a controller which has a drive range limiting function of controlling drive of the zoom lens by using the selected zoom position as a drive end, and a drive range switch member which switches the drive range limiting function between an invalid state and a valid state. The controller drives the zoom lens to the drive end when the drive range limiting function is switched to the valid state.

Abstract: A projector device, includes: a projector unit, including a light source and a projection lens whose focal position is variable, that projects an image upon a projection surface with a light flux outputted from the light source that passes through the projection lens; an image-capturing unit, including a photographic lens whose focal position is variable, that captures an image of a subject with a light flux from the exterior that passes through the photographic lens; and a single drive source that generates drive force for changing both the focal position of the projection lens and the focal position of the photographic lens.

Abstract: A zoom lens includes a cam roll, straight-forward units, lens groups, a driving unit, a detecting unit and a micro-processing unit. The lens groups moved by the cam roll sequentially varies from a receiving status to a zeroing status, a macro shooting-distance status and a wide shooting-distance status. A datum point of the cam roll corresponds to the zeroing status of the lens groups. The detecting unit includes an impeller, a detecting portion and a photonic sensor. When the photonic sensor detects the datum point of the cam roll, the micro-processing unit determines the position of the datum point of the cam roll and to reset the rotation count of the impeller. When the photonic sensor detects a skew point of the cam roll, the micro-processing unit determines and amends the rotation count of the impeller to be equal to a predetermined value.

Abstract: A digital still camera includes an image-capturing unit capturing a subject image via an image-capturing lens to create an image, a focus detecting unit detecting focus in accordance with the image created by the image-capturing unit, an image-capturing lens driving unit driving the image-capturing lens in accordance with a result of the focus detection provided by the focus detecting unit, and a receiving unit receiving an instruction to initiate image capture by the image-capturing unit. When the receiving unit receives the instruction to initiate image capture, the image-capturing unit captures the subject image successively to create a plurality of images, while the image-capturing lens driving unit drives the image-capturing lens successively. Accordingly, it is possible to provide an image in a high in-focus state while shortening the time required until an image is actually captured after an instruction is provided to initiate the capture of the image.

Abstract: A lens barrel assembly and a camera including the lens barrel assembly are provided. The lens barrel assembly includes a barrel case accommodating at least one optical lens, and a flexible printed circuit board (FPCB) configured to transmit signals between an area inside of the barrel case and an area outside of the barrel case. The barrel case comprises an outlet slit formed in the barrel case. The outlet slip being configured for extending the flexible printed circuit board to the area outside of the barrel case. Accordingly, the lens barrel assembly has an improved extension structure for extending the flexible printed circuit board which is configured to transmit signals between the inside and the outside of the lens barrel assembly.

Abstract: A lens barrel includes a first optical element that is allowed to move along an optical axis, a first driven member connected to the first optical element, a second optical element disposed in the optical axis of the first optical element, which is allowed to move along the optical axis, a second driven member connected to the second optical element, a first drive shaft disposed substantially parallel to the optical axis to drive the first driven member along the optical axis, a second drive shaft disposed substantially parallel to the optical axis to drive the second driven member along the optical axis, a first drive unit connected to an end of the first drive shaft to drive the first drive shaft, and a second drive unit connected to an end of the second drive shaft to drive the second drive shaft and disposed at a position that partially overlaps a position of the first drive unit when viewed from the direction of the optical axis.

Abstract: A digital camera has a first optical system having a wide zoom lens and a second optical system for a telephotography zoom lens. In an initial state where power is active, a controller and timing-generator controls the wide zoom lens so as to be situated at a wide position and the telephotography zoom lens so as to be situated at a telephotograph position. When zoom-in is effected, the wide zoom lens is actuated, and the telephotography zoom lens is maintained at the telephotograph position. When a zoom position of the wide zoom lens has reached a threshold zoom position set to a wider angle of view than that achieved at the telephotograph position, the telephotography zoom lens starts being actuated toward the wide position. When the zoom lens has reached the telephotograph position, an image signal is switched from the wide zoom lens to the telephotography zoom lens, and the selected image signal is output.

Abstract: A cam pin (16) and a demating prevention pin (35) that are provided in a driving frame (15) and have an identical shape are allowed to mate with a cam groove (18) and a demating prevention groove (36) that are provided in a cam frame (17), respectively. A first protrusion (37) is provided on at least one side in an optical axis direction of a portion of the demating prevention groove (36) with which the demating prevention pin (35) mates when the driving frame (15) is advanced. When an external force is applied to the driving frame (15), a cylindrical portion (35f) of the demating prevention pin (35) and the first protrusion (37) come into contact with each other. This prevents the cam pin (16) from demating from the cam groove (18). The cam pin (16) and the demating prevention pin (35) are made of common components, making it possible to reduce the number of components.

Abstract: An object of the present invention is to provide an automatic focusing apparatus which can reduce the time required to detect focused position in accordance with the operating environment by adjusting the voltage applied to a liquid crystal lens. The apparatus includes a liquid crystal lens whose focal length varies with an applied voltage, a liquid crystal lens driving unit which applies a prescribed voltage to the lens, an optical-to-electrical converter which produces an image signal from an optical image passed through the lens, a temperature sensor which detects temperature near the lens, and a control unit which extracts a plurality of focus signals by adjusting the prescribed voltage and controlling the driving unit based on the temperature or on the image signal acquisition period of the converter, and which controls the driving unit based on the extracted plurality of focus signals so that a maximum focus signal is achieved.

Abstract: A device includes a housing capable of forming an internal space during operation of the device. The device also includes a camera having an optical zoom portion provided within the housing. The optical zoom portion is capable of expanding into the internal space when the camera is in use.

Abstract: A barrel for an electrically-controllable variable focal length lens in a button-battery type housing includes a hollow isolating cylindrical tube with an inner diameter substantially equal to that of the lens housing, with one or bumps extending radially towards the inside of the tube and forming bearing surfaces for the lens periphery in a same radial plane. First metallizations extend on at least one of the bearing surfaces and therefrom into first channels formed in the internal wall of the tube towards at least one end of the tube, and second metallizations, each of which forms a contact area on the internal surface of the tube to bear against the lateral surface of the lens and extends towards at least one end of the cylinder.

Abstract: An object of the present invention is to provide a method for arranging an FPC in a lens barrel of an imaging device which allows installation of new function to an imaging device without eliminating function installed and size up. To solve the problem, the FPC electrically connect plurality of a optical elements movable which constitute an optical unit arranged movably along the optical axis, to the control unit that controls the operation of the optical elements movable, is made to comprise an extension section extending from a connector of the control unit in a state able to be fixed to a lens barrel, a fixed section fixed to the lens barrel, and a bent turn back section extending from the fixed section and then turn back in a loop shape with a terminal provided on the edge, and the terminal is connected to the optical element movable constituting the optical unit.

Abstract: A variable-power optical system includes, in order from an object side, first to fifth lens groups. The first and third lens groups are fixed at a time of varying magnification and at a time of focusing. The second, fourth and fifth lens groups are movable at the time of varying magnification. The first, third and fourth lens groups have positive refractive powers. The second and fifth lens groups have negative refractive powers. The fourth lens group has a focusing function. The following conditional expressions are satisfied. 0.4<fw/f1<0.8 0.5<|f2/fw|<0.8 where fw denotes a focal length of the whole system at an wide end, f1 denotes a focal length of the first lens group, and f2 denotes a focal length of the second lens group.

Abstract: A light shielding device of a lens includes a movable barrel; an outer member positioned around the movable barrel; and a light shield ring for preventing ambient light entering the lens through a clearance between the movable barrel and the outer member, the light shield ring having a center opening through which the movable barrel is movably fitted and a self-centering annular portion around the center opening. The self-centering annular portion is in contact with an outer surface of the movable barrel and is bent by, and along, the outer cylindrical surface of the movable barrel. The light shield ring is biased against an annular part of the outer member by a biasing member, so that the light shielding ring is movable in a radial direction when a radial force is applied to the light shielding ring via the movable barrel and the self-centering annular portion.

Abstract: The present invention provides a discretely adjustable lens (300) that is controllable by means of electrostatic or electrowetting forces. The lens provides two accurately reproducible and freely designable lens states that are defined by interfaces between one out of two fluids (120,121) and at least one lens face (155). Changing place of the fluids by means of electrostatic or electrowetting forces provides for switching between the lens states. The lens may, for example, provide a macro lens option in a camera lens arrangement.

Abstract: A lens module includes a lens barrel, at least one fixed focus lens fixed in the lens barrel, and at least two variable focus lenses fixed in the lens barrel. Each variable focus lens includes two electrodes and an electro-optical material between the electrodes. Each electrode is electrically connected to a voltage supply so as to be able to selectively apply a voltage to the electro-optical material and to thus selectively control the refractive index of that material. By changing the refractive index, a concordant change in the focus of a given variable focus lens is possible, without modifying the position and/or shape thereof.

Abstract: In an expensive zoom lens that has a zoom ratio of as high as about 5 and high optical performance and is very thin in its depth direction, the optical path of the optical system is easily bendable by reflecting optical members. The zoom lens includes a plurality of lens groups G1 to G5, and has a lens group F (G1) located nearest to the object side thereof. The first optical path bending is carried out by the first reflecting optical member PR located in the lens group F, and the second optical path bending is carried out by the second reflecting optical member RM located on an image side of the zoom lens with respect to the lens group F in a direction different from the first optical path bending direction. The lens group F remains substantially fixed with respect to an image plane I during zooming.

Abstract: A lens barrel having an increased strength against external impact. The lens barrel is configured to move in an optical axis direction. A photographic lens unit moves in the optical axis direction. A cylindrical unit is engaged with the photographic lens unit, and has an outer periphery formed thereon with a first cam groove followed by the photographic lens unit. The cylindrical unit performs rotation to thereby move the photographic lens unit in the optical axis direction. A rectilinear motion-causing restriction member is engaged with the cylindrical unit to restrict motion of the photographic lens unit to rectilinear motion. A second cylindrical unit is disposed around the photographic lens unit and the cylindrical unit to guide the photographic lens unit for rectilinear motion. A second rectilinear motion-causing restriction member restricts motion of the rectilinear motion-causing restriction member and the second cylindrical unit in a direction of rotation.

Abstract: An optical path passing through an object-side lens group is bent at a right angle by an optical device so as to be a vertical optical path. A lens group on imaging surface side for forming an image on an imaging surface is disposed on the vertical optical path. The lens group on imaging surface side moves along the vertical optical path, and has a plurality of movable lens groups at least for zooming. The cam plate moves in a direction perpendicular to the vertical optical path within a plane perpendicular to an optical axis of the object-side lens group and not protruding toward an object side compared with the object-side lens group. A plurality of cam slots are formed on the cam plate. The cam slots are fit to a part of the plurality of movable lens groups. In accordance with the movement of the cam plate, the cam slots move the plurality of the movable lens groups such that zooming and focusing are performed.

Abstract: Providing a compact rear-focus optical system having excellent optical performance, an imaging apparatus, and a method for focusing the rear-focus optical system. The system includes, in order from an object, a first lens group G1 having positive refractive power, an aperture stop S, and a second lens group G2. At least a portion of the second lens group G2 is movable along an optical axis of the rear-focus optical system upon focusing. Given conditional expressions are satisfied.

Abstract: A zoom lens system includes, in order from an object side to an image side, a first positive lens group (G1), a second negative lens group (G2), a third positive lens group (G3), and a fourth positive lens group (G4). The second and third lens groups are movable for varying the focal length. The zoom lens system offers a four-times zoom ratio, and employs two plastic aspheric lenses (L3, L9) and a resin hybrid lens (L6). The first lens group consists of two lenses (L1, L2) arranged in an abutting relationship. The second and third lens groups each includes a pair of cemented lenses (L4, L5; L7, L8).

Abstract: A mobile communication device includes a first part and a second part. The first part has a camera module mounted therein, which includes a lens-barrel and a focusing mechanism engaged with the lens barrel. Wherein the focusing mechanism has a focusing lever. The second part is movably attached to the first part between a first position and a second position. The second part further has a first and second lever-driving portions for driving the focusing lever to rotate between a first focus position where the focusing lever is located adjacent to the first lever-driving portion and the second is moved to the first position, and a second focus position where the focusing lever is located adjacent to the second lever-driving portion and the second part is moved to the second position.

Abstract: A lens holder for supporting a lens is put so as to slide on a side surface of a lens barrel in which an image sensor having a light receiving portion is arranged at the bottom, and the lens barrel and the lens holder are connected together by a connecting material. A fluid is filled in a space formed by the container composed of the substrate and the lens barrel, and the lens holder, and then a position of the lens with respect to the light receiving portion is controlled by controlling a volume of the fluid in the space to thereby move a position of the lens holder with respect to the lens barrel. Positioning of the lens is easily performed even when it is a compact configuration.

Abstract: A reduction optical system for forming, without re-imaging, a reduced image of a subject image formed by a main lens system. The reduction optical system has on the most object side a meniscus single-lens element convex to the object side, allowing for a high-performance, and compact reduction optical system by permitting lens replacement of the main lens system.

Abstract: A camera module (100) includes a lens unit (20), an image sensor (80), an optical group (406a, 406b), and at least a first light directing unit and a second light unit directing each having two reflective surfaces. The optical group includes a first reflective surface facing the lens unit and a second reflective surface facing the image sensor. The reflective surfaces of the first and second light directing units are positioned corresponding to the first and second reflective surfaces of the optical group. A distance between the first light directing unit and the optical group is different from that between the second light directing unit and the optical group. The optical group is movable relative to the first and second light directing unit. When the optical group is moved to different positions, light from the lens unit is directed to the image sensor in different path.

Abstract: A lens barrel includes a lens mount for holding a lens in a barrel, a guide shaft extending parallel to an optical axis of the lens within the barrel and connected to the lens mount for guiding the lens mount along the optical axis, and a support operable to support opposite ends of the guide shaft in its extending direction within the barrel, the support including a support unit operable to support at least one of the opposite ends of the guide shaft, the support unit including a hole provided in the barrel, and a bearing member attached from the exterior of the barrel into the hole and being removable therefrom, the bearing member being rotatable about a center axis of the hole, wherein the bearing member includes a shaft inserted into the hole and a bearing hole provided in the shaft, with one end of the guide shaft being inserted into the bearing hole and a center axis of the bearing hole being eccentric from a center axis of the shaft.

Abstract: The present application relates to an eyepiece for use with a viewing device. The eyepiece is configured to change the distance between a first edge of the eyepiece and a lens near a second edge of the eyepiece. The eyepiece includes a first element having a pin extending therefrom and a rotational axis having a first axial direction and a second axial direction. The eyepiece further includes a second element having a groove, the second element sharing the rotational axis and configured to rotate about the rotational axis relative to the first element. The groove comprises a first pin movement section and a second pin movement section. The groove further comprises a pin stopping section, the pin stopping section located between the first pin movement section and the second pin movement section. The pin stopping section is configured to prevent the second element from rotating relative to the first element.

Abstract: The present invention is directed to improve prior art zoom lens systems that have groups of lens pieces moved within a lens barrel for the zooming and the focusing and to provide an improved zoom lens system that is simplified and robust in configuration so as to withstand malfunctions well and is capable of effectively and assuredly eliminating stray light.

Abstract: A group of optical elements of a zoom lens unit has variable-focal-length lenses whose optical properties can be adjusted. A camera having this zoom lens unit incorporated therein includes a control unit into which control information, with respect to any of a plurality of variable design parameters for the zoom lens unit, is inputted by the user. The camera also has a processing unit for obtaining an optical parameter of the zoom lens unit through a simulation operation when the variable design parameters are controlled based on the control information, a display unit which displays the results of the simulation operation that is carried out by the processing unit, and a photographing control unit for controlling the variable design parameters based on the control information, so that a desired optical property can easily be obtained.

Abstract: A group of optical elements of a zoom lens unit has variable-focal-length lenses whose optical properties can be adjusted. A camera having this zoom lens unit incorporated therein includes a program memory which stores therein a plurality of mocking design data with respect to a group of parameters having any of a plurality of variable design parameters for the zoom lens unit. The camera also has a control unit into which designation information is inputted by the user which designates any one of the plurality of mocking design data and a control unit which controls the variable design parameters based on the mocking design data designated by the designation information, so that a desired optical property can easily be obtained.

Abstract: An image sensing apparatus which has an optical system, the focal length of which is variable, and an image sensing element that converts an image formed by the optical system into an electrical signal, and can sense and record a moving image and still image, includes a focal length detection circuit for detecting the focal length of the optical system, and a control unit for inhibiting recording of the still image in accordance with the focal length detected by the focal length detection circuit.

Abstract: For performing a fingerprint security function in an electronic device having a camera unit, a focus of a lens in the camera unit is adjusted to a first focus level when a control signal set indicates a normal photograph mode. Alternatively, the focus of the lens in the camera unit is adjusted to a second focus level different from the first focus level when the control signal set indicates a fingerprint photograph mode. Thus, existing components of the built-in camera are used to minimize cost and time for production of the electronic device that performs the fingerprint security function.

Abstract: In an electronic image pickup apparatus of the present invention, a lens barrel having optical elements arranged in the optical axis direction has a CCD for photographing a luminous flux from a subject, a CCD holder formed around the CCD to hold the CCD, and a low-pass filter provided on the front side of the CCD. A low-pass filter holder as a plate-like member to hold and fix the low-pass filter is provided to contact the low-pass filter at one end through a diaphragm on the CCD side surface, and contacts the CCD holder on the side opposite to the CCD at the other end.

Abstract: An optical apparatus is disclosed which has a light amount adjusting unit, a lens to be driven by a linear actuator, and a detector for detecting the position of the lens, and which can be reduced in size. The optical apparatus includes a light amount adjusting unit which adjusts a light amount by light shield members translating in a first direction, a vibration type linear actuator which drives the lens in an optical axis direction, a guide member which guides the lens in the optical axis direction, and a detector which detects the position of the lens. When viewed from the optical axis direction of the optical apparatus, the vibration type linear actuator, the guide member, and the detector are arranged along an outer surface of the light amount adjusting unit, the outer surface being provided in a second direction orthogonal to the first direction.

Abstract: A camera module (100) includes a housing (110), a lens (120), an optical group (130), a drive mechanism (160) and two image sensors (180, 190). The optical group includes a first and a second mirror (132, 134) respectively having a reflective surface (133, 135) and a middle lens (136). The drive mechanism moves the first mirror between a first and a second position. The second reflective surface of the second mirror faces being oriented so as to be able to reflect light to the second image sensor. When the first mirror is in the first position, the first reflective surface is oriented so as to be able to reflect light to the first image sensor. When the first mirror is in the second position, the first reflective surface is oriented so as to allow the light to pass through the middle lens and reach the second mirror.

Abstract: A zoom lens having five lens groups arranged in succession. The zoom lens is configured such that when zooming from a short focal length end toward a long focal length end, the second lens group lens moves toward the third lens group and the fourth lens group moves toward a side of the third lens group, and the fifth lens group corrects the zooming and a shift in a position of an imaging plane of the zoom lens caused by movement of the third lens group and the fourth lens group.

Abstract: An automatic focusing module (100) includes a lens barrel (10), a first lens (11), a piezoelectric element (14), and a deformably adjustable lens (13). The first lens is disposed in the lens barrel. The piezoelectric element is installed in the lens barrel. The piezoelectric element is connected to a piezoelectric circuit. The deformably adjustable lens is disposed in the piezoelectric element.

Abstract: A taking lens system is provided with, from the side of the object to be photographed, a first lens unit (G1) having positive optical power, a second lens unit (G2) having negative optical power, a third lens unit (G3) having positive optical power and a fourth lens unit (G4) having positive optical power. Zooming is performed by moving the first to fourth lens units (G1) to (G4), and focusing is performed by moving the fourth lens unit (G4). When the distance from the most object-to-be-photographed side surface (r1) of the first lens unit (G1) to the imaging surface at the wide angle end is TLw, the overall focal length of the taking lens system at the telephoto end is ft, the overall focal length of the taking lens system at the wide angle end is fw, and the focal length of the first lens unit (G1) is fl, relationships 0.5?TLw/ft?1.0 and 6.0?fl/fw?20.0 are satisfied.

Abstract: A range/speed finder can be incorporated into a personal electronic device. In one example, a personal electronic device includes an automatic focus system adapted to focus an image of an object and a processor in communication with the automatic focus system adapted to detect a distance of the object using the automatic focus system. The processor can be adapted to detect a speed of the object and/or a dimension of the object using the automatic focus system. Methods and systems for determining a distance, a dimension, and/or a speed of the object relative to the personal electronic device are also provided.

Abstract: A cellular telephone handset has a built-in image pickup device. A lid shaped reception unit is slidable on a transmission unit or main body between closed and open positions, lies on a first surface of the main body when in the closed position, and uncovers at least part of the first surface when in the open position. An image sensor to pick up an image is contained in the main body. A first lens element receives object light incident thereon. Plural second lens elements in the main body have an optical axis extending in a sliding direction of the lid shaped reception unit, for introducing the object light to the image sensor. A path bending prism introduces the object light to the second lens elements by changing an optical path of the object light from the first lens element. An optical path length of the second lens elements is changeable.

Abstract: A cam pin (16) and a demating prevention pin (35) that are provided in a driving frame (15) and have an identical shape are allowed to mate with a cam groove (18) and a demating prevention groove (36) that are provided in a cam frame (17), respectively. A first protrusion (37) is provided on at least one side in an optical axis direction of a portion of the demating prevention groove (36) with which the demating prevention pin (35) mates when the driving frame (15) is advanced. When an external force is applied to the driving frame (15), a cylindrical portion (35f) of the demating prevention pin (35) and the first protrusion (37) come into contact with each other. This prevents the cam pin (16) from demating from the cam groove (18). The cam pin (16) and the demating prevention pin (35) are made of common components, making it possible to reduce the number of components.

Abstract: A collapsible-type lens barrel includes an image blurring correction unit that drives a first lens in a plane orthogonal to an optical axis so as to cancel shaking of an image sensing apparatus, and a second lens placed adjacent the image blurring correction unit. When the collapsible-type lens barrel is in the collapsed state, the image blurring correction unit causes the first lens to withdraw to a position away from the optical axis of the second lens, and causes the second lens to retract in such a manner that a portion of the second lens enters at least part of a space on the optical axis produced by the withdrawal of the first lens.