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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 6909846 | Zoom lens systems A zoom lens system having an exit pupil far away from the image plane, zoom ratio of about three, and in particular having compactness and high optical performance includes, in order from an object, a first lens group having negative refractive power, an aperture st... | 06/21/2005 |
| 6906868 | Zoom lens system A zoom lens system includes a negative first lens group, a positive second lens group, and a positive third lens group. The negative first lens group includes a negative meniscus lens element having the convex surface facing toward the object, and the positive third... | 06/14/2005 |
| 6906867 | Zoom optical system and imaging apparatus using the same A zoom optical system includes at least two optical-element groups and a variable optical-property optical element. The two optical-element groups are movable in a magnification change and have a magnification varying function or a compensating function for compensa... | 06/14/2005 |
| 6903878 | Zoom lens and image pickup apparatus A zoom lens which suppresses variations of an exit pupil and is telecentric on the image side in the whole range of zooming comprises, from the object side toward the image side: a first negative in optical power, an aperture stop, a second lens unit positive in opt... | 06/07/2005 |
| 6900947 | Imaging lens device An imging lens device has a zoom lens system and an imaging sensor. The zoom lens system has a plurality of lens units and changes gaps between the lens units to thereby generate an optical image of an object which can be optically and successively zoomed in and out... | 05/31/2005 |
| 6898023 | Zoom lens The present invention provides a small, thin, light and low cost zoom lens suitable for cellular telephones, portable information terminals, etc. In particular, it can provide a small and thin, high performance zoom lens having a zoom ratio of approximately 2, a dep... | 05/24/2005 |
| 6888685 | Retracting mechanism of a zoom lens barrel A retracting mechanism of a zoom lens barrel includes first, second and third lens groups, wherein the first and third lens groups are integrally moved along an optical axis during variation of a focal length, and wherein at least one of the first and third lens gro... | 05/03/2005 |
| 6888682 | Projector lens system A projector lens system includes a negative first lens group and a positive second lens group. The first lens group comprises a first lens element that is formed as a negative meniscus lens element, a positive or negative second lens element, a negative third lens e... | 05/03/2005 |
| 6885507 | Zoom lens system which covers a wide angle range A zoom lens system, covering a wide-angle range, includes a negative first lens group, a positive second lens group, and a negative third lens group. Zooming is performed by varying the distances between the first to third lens groups, and the zoom lens system satis... | 04/26/2005 |
| 6871017 | Lens drive control apparatus for zoom lens system having a switching lens group A lens drive control apparatus for a camera having a zoom lens provided with variable lens groups, at least one of the variable lens groups including a switching lens group having two sub lens groups, wherein one of the two sub lens groups serves as a movable sub le... | 03/22/2005 |
| 6870688 | Zoom lens system According to one aspect of the present invention, a zoom lens system includes, in order from an object along an optical axis, a first lens group having negative refractive power, and a second lens group having positive refractive power. A distance between the first ... | 03/22/2005 |
| 6865026 | Zoom lens, and electronic imaging system using the same The invention relates to a zoom lens with an easily bendable optical path, which comprises a reduced number of lens element while having high optical specification. The zoom lens comprises a moving lens group B (G2) that has positive refracting power and move... | 03/08/2005 |
| 6862142 | Multi-detector microscopic inspection system Techniques for utilizing a microscope inspection system capable of inspecting specimens at high throughput rates are described. The inspection system achieves the higher throughput rates by utilizing more than one detector array and a large field of view to scan the... | 03/01/2005 |
| 6862411 | Real image mode finder optical system A real image mode finder optical system is constructed to be independent of a photographing optical system and includes, in order from the object side, an objective optical system with a positive refracting power, a field frame located in the proximity of the imagin... | 03/01/2005 |
| 6862408 | Image pickup system The object of the invention is to enhance the performance of an image pickup system comprising a zoom lens by developing an unheard-of design of the configuration of lens surfaces used in the zoom lens, thereby achieving wide-angle arrangements and reductions in the... | 03/01/2005 |
| 6862143 | Zoom lens and optical apparatus having the same A zoom lens is constructed with, in order from an object side to an image side, a first lens unit of negative optical power, the first lens unit including a negative meniscus lens having a concave surface facing the image side and a positive meniscus lens having a c... | 03/01/2005 |
| 6853498 | Zoom lens The zoom lens comprises, in order from an object side: a first lens group having a negative refractive power, the first lens group including a first lens having a negative refractive power, and a second lens having a positive refractive power; a second lens group ha... | 02/08/2005 |
| 6853497 | Wide-angle zoom lens system A wide-angle zoom lens system includes a negative first lens group, a positive second lens group, and a positive third lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length extremity, the distance betw... | 02/08/2005 |
| 6853495 | Wide-angle lens system A wide-angle lens system having a long back focal length, disposed in front of a ⅓″ CCD camera and the focal length (f) for all lens groups is 3.0 mm, the F-number is 3.0 and the half-field angle is 46°. The following conditions are met by the first lens group:... | 02/08/2005 |
| 6853807 | Imaging device and digital camera using the imaging device An imaging device has a zoom lens system having a plurality of lens units and forming an optical image of an object so as to continuously optically zoom by varying distances between the lens unit; and an image sensor converting the optical image formed by the zoom l... | 02/08/2005 |
| 6850373 | Zoom lens, and electronic imaging system using the same The invention relates to a zoom lens that enables an optical path to be easily bent and has high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and limited aberrations. The zoom lens comprises, in order from i... | 02/01/2005 |
| 6844989 | Lens system installed in mobile communication terminal Disclosed is a lens system installed in a mobile communication terminal, comprising: a first lens including at least one aspherical plane and having a positive refractivity; a perforated iris separated from the first lens by a designated distance for preventing unne... | 01/18/2005 |
| 6844986 | Zoom lens and image taking apparatus using the same In order to provide a zoom lens which has excellent optical performance with a compact configuration using a small number of constituent lenses, a zoom lens according to the present invention comprises a first lens unit having a negative optical power, a second lens... | 01/18/2005 |
| 6844984 | Projection objective A projection objective having a variable focal length, preferably serving to image tilting mirror matrices or reflecting and/or transmitting LCDs, said projection objective comprising three groups of lenses (G1, G1, G3) arranged on a common optical axis, wherein, st... | 01/18/2005 |
| 6839185 | Compact zoom lens system and digital camera using the compact zoom lens system A zoom lens apparatus includes a first optical lens group having a negative focal length, a second optical lens group having a positive focal length, and a third optical lens group having a negative focal length, arranged in this order from a subject. The lens group... | 01/04/2005 |
| 6839184 | Zoom lens assembly A lens assembly includes a first group of lens having negative power, a second group of lens having positive power, and a third group of lens having positive power arranged in sequence from an object side. A gap between the first group of lens and the second group o... | 01/04/2005 |
| 6839183 | Zoom lens, camera, and portable information terminal device A zoom lens includes a negative first group optical system, and a positive second group optical system, which are sequentially arranged from an object side, and an aperture stop disposed on the object side of the second group optical system moving integrally therewi... | 01/04/2005 |
| 6836375 | Zoom lens system and image pickup apparatus having the same A zoom lens system according to the invention includes, in order from the front to the rear, a first lens unit having negative optical power, an aperture stop, a second lens unit having positive optical power, and a third lens unit having positive optical power, and... | 12/28/2004 |
| 6833964 | Zoom lens system The present invention provides a zoom lens system suitable for an image gathering system using a solid-state imaging device, having a zoom ratio of about three, a small total lens length, and superb optical performance. According to one aspect, in order from the obj... | 12/21/2004 |
| 6829102 | Zoom lens, and camera and portable information terminal for utilizing zoom lens A zoom lens comprising a first group of lenses (1) having negative focal length, a second group of lenses (2) having positive focal length, and a third group of lenses (3 having the positive focal length in order from an object side, in which the second group of len... | 12/07/2004 |
| 6829101 | Zoom lens, and image pickup apparatus The present invention relates to a digital still camera that is compatible with an increasing number of pixels and uses a zoom lens having a high zoom ratio yet compact, simple construction, wherein chromatic aberration of the zoom lens are reduced and the zoom lens... | 12/07/2004 |
| 6822808 | Zoom lens and optical apparatus having the same A zoom lens is constructed with, in order from an object side to an image side, a first lens unit of negative optical power, the first lens unit including a negative meniscus lens having a concave surface facing the image side and a positive meniscus lens having a c... | 11/23/2004 |
| 6819499 | Zoom lens system, and image pickup system using the same The invention provides a zoom lens system which has a zoom ratio of about 3, a wide field angle on the wide-angle end and a small F-number and enables satisfactory image-formation capability to be obtained. The zoom lens system comprises a first lens group G1 | 11/16/2004 |
| 6813091 | Zoom lens system and photographing apparatus having the same This invention provides a zoom lens system with, in succession from the front to rear, a first lens unit of negative optical power, a second lens unit of positive optical power and a third lens unit of positive optical power. When zooming from a short focal length e... | 11/02/2004 |
| 6813090 | Zoom lens system A zoom lens system includes a positive first lens group, a positive second lens group, and a negative third lens group. Zooming is performed by moving the first, second and third lens groups in the optical axis direction. The positive first lens group is constituted... | 11/02/2004 |
| 6809882 | Wide-angle zoom lens A wide-angle zoom lens is disclosed having only two lens groups, of negative and positive refractive power in order from the object side, respectively, and which provides an image angle at the wide-angle end of at least 100°. Zooming is performed by moving the firs... | 10/26/2004 |
| 6809881 | Zoom optical system A zoom optical system suited for use in an electronic image pickup apparatus comprising a first negative lens unit, a second positive lens unit and a third positive lens unit, in which a magnification is changed from a wide position to a tele position by moving at l... | 10/26/2004 |
| 6809878 | Zoom lens The present invention provides a compact, thin zoom lens. The zoom lens according to the present invention includes, from an object side to an image plane side, a first lens group having an overall negative overall refractive power, a second lens group having an ove... | 10/26/2004 |
| 6804067 | Single focus lens A single focus lens is disclosed that is formed of only three lens components. In order from the object side, these are: a first lens component that has positive refractive power and includes a first lens element; an aperture diaphragm; a second lens component that ... | 10/12/2004 |
| 6804064 | Zoom lens, camera, and portable information terminal apparatus A lens (1), a lens (2) and a lens (3) constitute a first group of lenses, a lens (4), a lens (5), a lens (6) and a lens (7) constitute a second group of lenses, and a lens (8) constitutes a third group of lense... | 10/12/2004 |
