Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Keiki Yoshitsugu

Takakazu Bito

Katsu Yamada

Yoshito Miyatake

Kazuhiko Ishimaru

Kyoichi Miyazaki

Yoshiaki Kurioka

Shinji Yamaguchi

Shunichiro Yoshinaga

Michihiro Yamagata

Yoshiharu Yamamoto

Tomoko Iiyama

Hiroaki Okayama

Motonobu Yoshikawa

Kenichi Hayashi

Kazutake Boku

Akira Koga

An imaging device in the present disclosure includes: an imaging unit including an imaging optical system configured to form an image of an object and an imaging element configured to convert an optical image formed by the imaging optical system into an image signal and output the image signal; a distance-measuring section configured to obtain distance information of the object; an image display section configured to display an image of the image signal; an object recording section configured to previously register and record an object to be shot; and a distance designation section configured to designate a distance at which the object is to be shot. The imaging optical system performs a focusing operation for the distance designated by the distance designation section. The imaging unit performs shooting exposure when the object recorded previously by the object recording section is located at the distance designated by the distance designation section.

Imaging device enabling automatic taking of photo when pre-registered object moves into photographer's intended shooting distance

An electronic device presents, to the user, a realistic control feel in response to a complicated operation such as an operation using multiple fingers. An electronic deviceincludes a touch panelto be touched by the user, a vibrating sectionfor vibrating the touch panel, and a vibration control sectionfor controlling the vibration of the vibrating section. The vibration control sectionchanges the vibration of the vibrating sectionwhen, after the user touches the touch panelwith multiple fingers, the user lifts at least one of the multiple fingers off the touch panelwith at least one other of the multiple fingers remaining on the touch panel

Electronic device having a vibrating section for multiple touches

A stereoscopic imaging optical system having a function to adjust a stereo base, an imaging device that includes the stereoscopic imaging optical system, and a camera that includes the imaging device, are provided. The stereoscopic imaging optical system includes two imaging lens systems arranged in parallel, and two diaphragms arranged in the imaging lens systems, respectively. At least one of the diaphragms is decentered with respect to an optical axis to adjust the stereo base. Further, a condition (1.8&#x2266;SB/(fT&#xd7;tan(&#x3c9;T))&#x2266;45, where SBis a maximum value of the stereo base, fT is a focal length of the optical system at a telephoto limit, and &#x3c9;T is a half view angle (&#xb0;) at the telephoto limit) is satisfied.

Stereoscopic imaging optical system, imaging device, and camera

A zoom lens system comprises: a negative first lens unit being composed of two lens elements; a positive second lens unit; and a positive third lens unit, wherein the lens units are moved such that an interval between the first lens unit and the second lens unit decreases and an interval between the second lens unit and the third lens unit increases in zooming, so that magnification change is achieved, wherein the first lens unit is composed of a negative first lens element and a positive second lens element, and wherein the condition is satisfied: 0.50&#x3c;f/f&#x3c;1.00 where, Z=f/f&#x3e;4.0, &#x3c9;&#x3e;35, f: a focal length of the second lens element, f, f: focal lengths of the entire system at a telephoto limit, a wide-angle limit, &#x3c9;: a half view angle at a wide-angle limit.

Zoom lens system, imaging device and camera

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&#x3c;tan(&#x3c9;)&#xd7;Z&#x3c;6.00 where, Z=f/f&#x3e;4.0, &#x3c9;&#x3e;35, f, f: focal lengths of the entire system at a telephoto limit, a wide-angle limit, &#x3c9;: a half value of maximum view angle at a wide-angle limit.

A zoom lens system, in order from an object side to an image side, comprising a first lens unit having negative optical power, a second lens unit having positive optical power, a third lens unit having positive optical power, and a fourth lens unit having positive optical power, wherein in zooming, the intervals between the respective lens units vary, the third lens unit comprises a plurality of lens elements, and the condition (I-1): 0.47&#x3c;|f/f|&#x3c;1.00 (f/f&#x3e;2.0, f: a focal length of a most object side lens element in the third lens unit, f: a focal length of the third lens unit, f: a focal length of the entire system at a telephoto limit, f: a focal length of the entire system at a wide-angle limit) is satisfied, having a high resolution and a short overall optical length (overall length of lens system), and still having a view angle of 70&#xb0; or greater at a wide-angle limit, which is satisfactorily adaptable for wide-angle image taking, and yet having a large aperture with an F-number of about 2.0 at a wide-angle limit; an imaging device; and a camera.

A high-performance zoom lens system which is compact and has a wide view angle at a wide-angle limit and a high zooming ratio in a balanced manner, in order from an object side to an image side, comprising 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, wherein the first lens unit is composed of at most two lens elements, the second lens unit is composed of two lens elements, the third lens unit is composed of three lens elements, in order from the object side to the image side, including an object side lens element having positive optical power, a lens element having negative optical power, and an image side lens element having positive optical power, and the conditions: &#x3c9;/f: a half view angle at a wide-angle limit, f: a focal length of the entire system at a telephoto limit, f: a focal length of the entire system at a wide-angle limit) are satisfied; an imaging device; and a camera are provided.

A high-performance zoom lens system which is compact and has a wide view angle at a wide-angle limit and a high zooming ratio in a balanced manner, in order from an object side to an image side, comprising 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, wherein the first lens unit is composed of at most two lens elements, the second lens unit is composed of two lens elements, the third lens unit is composed of three lens elements, and the condition: nd&#x3e;1.75 (nd: a refractive index to the d-line of each lens element constituting the zoom lens system) is satisfied; an imaging device; and a camera are provided.

A high-performance zoom lens system which is compact and has a wide view angle at a wide-angle limit and a high zooming ratio in a balanced manner, in order from an object side to an image side, comprising 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, wherein the first lens unit is composed of at most two lens elements, the second lens unit is composed of two lens elements, the third lens unit is composed of three lens elements, in order from the object side to the image side, including an object side lens element having positive optical power, a lens element having negative optical power, and an image side lens element having positive optical power, and the conditions: f/f&#x3e;6.0 and &#x3c9;&#x2267;30 (f: a focal length of the entire system at a telephoto limit, f: a focal length of the entire system at a wide-angle limit, &#x3c9;: a half view angle at a wide-angle limit) are satisfied; an imaging device; and a camera are provided.

A zoom lens system, in order from an object side to an image side, comprising a first lens unit having negative optical power, a second lens unit having positive optical power, a third lens unit having positive optical power, and a fourth lens unit having positive optical power, wherein in zooming, the intervals between the respective lens units vary, and the condition (I-1): 2&#x3c9;/F&#x2267;34 (f/f&#x3e;2.0, &#x3c9;: a half view angle (&#xb0;) at a wide-angle limit, F: an F-number at a wide-angle limit, f: a focal length of the entire system at a telephoto limit, f: a focal length of the entire system at a wide-angle limit) is satisfied, having a high resolution and a short overall optical length (overall length of lens system), and still having a view angle of 70&#xb0; or greater at a wide-angle limit, which is satisfactorily adaptable for wide-angle image taking, and yet having a large aperture with an F-number of about 2.0 at a wide-angle limit; an imaging device; and a camera.

A zoom lens system according to the present invention, from an object 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 units all move along the optical axis. The third lens unit is composed of three or more lens elements. The condition (6): nd&#x2266;1.5 and vd&#x2267;75 and the condition (7): (nd&#x2212;1)+(nd&#x2212;1)&#x2267;1.55 are satisfied (where, 16&#x3c;f/f, &#x3c9;&#x3e;35, and in the third lens unit: nd, nd, ndare refractive indices to the d-line of the lens elements located on the most object side and at the second and the third positions from the object side; vdis an Abbe number to the d-line of the lens element on the most object side; &#x3c9; is a half view angle at a wide-angle limit; fis a focal length of the entire system at a telephoto limit; and fis 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.

A zoom lens system 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 negative first lens unit being composed of two lens elements; a positive second lens unit; and a positive third lens unit, 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 decreases and that an interval between the second lens unit and the third lens unit increases, 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.

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&#x3c;f/f&#x3c;3.00 where, f, f: focal lengths of the first and second cemented lens elements.

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&#x3c;f/f&#x3c;1.00 where, Z=f/f&#x3e;4.0, &#x3c9;&#x3e;35, f: a focal length of the second lens element, f, f: focal lengths of the entire system at a telephoto limit, a wide-angle limit, &#x3c9;: a half value of the maximum view angle at a wide-angle limit.

Growing community of inventors

Hyogo, Japan

Keiki Yoshitsugu