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3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8040614 | Zoom lens and image pickup device Disclosed herein is a zoom lens including a first lens group, a second lens group, a third lens group, a fourth lens group, and a fifth lens group. The zoom lens satisfies following conditional expressions (1) and (2), 0.03 | 10/18/2011 |
| 7995285 | Imaging apparatus An imaging apparatus includes a first lens has a positive refractive power, a second lens has a positive refractive power, a third lens has a negative refractive power, a fourth lens has a negative refractive power, an image sensor and a driving device. The first le... | 08/09/2011 |
| 7986467 | Zoom lens and imaging apparatus This is addressed to provide a zoom lens which has a good optical performance for imaging device having a large number of pixels even with its simple construction, and which can also be small and thin in structure, and an imaging apparatus using the zoom lens. A zoo... | 07/26/2011 |
| 7982968 | Variable-power optical system, image pickup device, and digital apparatus A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power; and a third lens group with a negative optical power, where an interval between the f... | 07/19/2011 |
| 7965451 | Zoom lens and electronic imaging apparatus using the same A zoom lens includes, 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. When the magnification of the zoom lens is changed in the range from a ... | 06/21/2011 |
| 7933072 | Zoom lens and imaging apparatus A zoom lens includes a first negative lens group, a second negative lens group, a third positive lens group, an aperture diaphragm, and a fourth positive lens group arranged in this order from an object side. When power varies from a wide angle end to a telephoto en... | 04/26/2011 |
| 7898744 | Close-up lens, imaging apparatus, and method for focusing close-up lens Providing a close-up lens with superb optical performance capable of focusing from infinity to a close distance allowing a life-size magnification by an internal focusing system with small moving amounts of focusing lens groups, an imaging apparatus, and a method fo... | 03/01/2011 |
| 7880975 | Zoom lens and imaging device having same 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 or a negative refrac... | 02/01/2011 |
| 7872807 | Zoom lens, and electronics imaging system using the same A zoom lens with an easily bendable optical path has high optical specification performance such as a high zoom ratio, a wide-angle arrangement, a small F-number and reduced aberrations. It includes a first lens group G1 remaining fixed during zooming, a seco... | 01/18/2011 |
| 7869136 | Image forming optical system and electronic image pickup apparatus using the same In a zoom lens, in which the distance between the first lens group and the second lens group changes during zooming, wherein a refractive optical element A that has a positive refracting power if its object side surface and its image side surface are interfaces with... | 01/11/2011 |
| 7855841 | Reflex, magnifying optical system A first lens group in a reflex, magnifying optical system includes sequentially from the side of an object, a first lens that has a negative refractive power and is a meniscus lens having a concave aspect facing toward an image, an optical element (prism) that refra... | 12/21/2010 |
| 7791817 | Electronic image pickup apparatus An electronic image pickup apparatus comprising a zoom lens system and an image pickup device disposed on an image side of the zoom lens system and which converts an image formed by the zoom lens system into an electric signal, the zoom lens system having, in order ... | 09/07/2010 |
| 7773311 | Zoom lens and image pickup apparatus including the same A zoom lens includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a rear unit including one or more lens units, which are arranged in order from the object side to the image side. The zoom lens perf... | 08/10/2010 |
| 7724448 | Zoom lens and image pickup apparatus equipped with same A zoom lens has, in order from the object side thereof, a positive first lens unit G1, a negative second lens unit G2, a positive third lens unit G3, a fourth lens unit G4, and an aperture stop S disposed closer to the image side than the... | 05/25/2010 |
| 7656590 | Zoom lens and imaging apparatus The invention relates to a zoom lens and an imaging apparatus, and more particularly to a slimmed-down zoom lens well fit for imaging apparatus inclusive of video cameras and digital cameras. The zoom lens comprises, in order from its object side, a first lens group... | 02/02/2010 |
| 7649694 | Zoom lens A zoom lens suitable for imaging an object on a photosensitive device is provided. The zoom lens includes a first lens group, a second lens group, a third lens group and a fourth lens group, which are arranged in series. The fourth lens group is disposed near the ph... | 01/19/2010 |
| 7639430 | Zoom lens and image pickup apparatus having the same A zoom lens includes, from the object side, first and second lens units of negative and positive refractive power. The lens units move during zooming from the wide-angle end to the telephoto end. The first lens unit includes, from the object side, three negative len... | 12/29/2009 |
| 7636201 | Zoom lens and camera device including the same A zoom lens includes a first lens group having a positive focal length, a second lens group having a negative focal length, a third lens group having a positive focal length, a fourth lens group having a negative focal length which are arranged in order from an obje... | 12/22/2009 |
| 7633686 | Zoom optical system, image sensing device, and digital apparatus A zoom optical system includes first through fourth lens groups having negative-positive-negative-positive optical powers. Assuming that a curvature radius of an object-side lens surface of a negative lens element in the first lens group is r1, a curvature ra... | 12/15/2009 |
| 7630141 | Zoom lens and image pickup apparatus having the zoom lens A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power and configured to move along an optical axis during zooming, a second lens unit having a negative refractive power and configured to move with a... | 12/08/2009 |
| 7599123 | Zoom lens system, imaging apparatus and method for varying focal length Providing a zoom lens system being inexpensive, compact and lightweight with high optical performance, and an imaging apparatus, and a method for varying a focal length. The zoom lens system includes, in order from an object, a first lens group having negative refra... | 10/06/2009 |
| 7583447 | Zoom optical system and electronic system incorporating IT The invention relates to a zoom optical system that makes it possible to offer a sensible tradeoff between cost savings and size reductions and an electronic system that incorporates it. The zoom optical system comprises a lens group having negative refracting power... | 09/01/2009 |
| 7583448 | Zoom optical system and electronic system incorporating it The invention relates to a zoom optical system that makes it possible to offer a sensible tradeoff between cost savings and size reductions and an electronic system that incorporates it. The zoom optical system comprises a lens group having negative refracting power... | 09/01/2009 |
| 7558004 | Variable power optical system A variable power optical system is provided and includes a positive first lens group, a negative second lens group, a positive fifth lens group, a positive third lens group, and a negative fourth lens group containing first to third sub lens groups, in order from th... | 07/07/2009 |
| 7551365 | Zoom lens, digital camera and portable information device A zoom lens in the present invention is composed of a first lens group G1 having a fixed distance from the image plane side and negative refracting power, a second lens group G2 having positive refracting power and moving during zooming, a third lens g... | 06/23/2009 |
| 7535652 | Zoom optical system and electronic imaging apparatus using the same A zoom optical system has, in order from the object side, a first lens unit with negative refracting power, including one biconcave-shaped lens component, a second lens unit with positive refracting power, a third lens unit with negative refracting power, and a four... | 05/19/2009 |
| 7532411 | High zoom ratio zoom lens system Providing a high zoom ratio zoom lens system having a short total lens length and a small diameter of the first group despite of securing excellent optical performance, a half angle of view of 3.5° or less in the telephoto end, an f-number of 6 or less in the telep... | 05/12/2009 |
| 7529035 | Zoom lens system and image pickup device A zoom lens system includes, in order from an object side: a first lens group having negative power, a second lens group having negative power, a third lens group having positive power, and, a fourth lens group having positive power. The position of the first lens g... | 05/05/2009 |
| 7508594 | Wide-angle zoom lens system A wide-angle zoom lens system includes a negative first lens group, a positive second lens group, a negative third lens group and a positive fourth lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length... | 03/24/2009 |
| 7499225 | Compact zoom lens optical system and driving method of the same A refractive-type zoom lens optical system includes a first lens group having a negative lens power and including a reflection member, a second lens group having a negative lens power, a third lens group having a positive lens power, a fourth lens group having a neg... | 03/03/2009 |
| 7495841 | Zoom lens and projector using zoom lens To provide a high performance compact zoom lens with a small lens aperture which projects an image from a light valve such as a DMD (Digital Micromirror Device) in which an image is formed by changing reflecting directions of light on to a screen or the like in an e... | 02/24/2009 |
| 7443603 | Wide-angle zoom lens system A wide-angle zoom lens system includes a negative first lens group, a positive second lens group, a negative third lens group and a positive fourth lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal... | 10/28/2008 |
| 7443599 | Magnification varying optical system and image taking apparatus A magnification varying optical system that directs light from an object to an image sensor includes in order from the object side: a first lens unit having negative optical power and including an optical axis changing element that changes the optical axis; a second... | 10/28/2008 |
| 7443600 | Zoom lens and image pickup apparatus having the same At least one exemplary embodiment is directed to a zoom lens which includes, in order from the object side to the image side, a first lens unit having a negative refractive power, a second lens unit having a negative refractive power, a stop, a third lens unit havin... | 10/28/2008 |
| 7443604 | Zoom lens and image-pickup apparatus having the same At least one exemplary embodiment is directed to a zoom lens which includes first to fourth lens groups, each moving and having negative, positive, negative, and positive refractive power, arranged from an object to an image in that order. The second lens group incl... | 10/28/2008 |
| 7436600 | Zoom lens system A zoom lens system comprises: a first lens group with a negative refractive power, a second lens group with a negative refractive power, a third lens group with a positive refractive power and a fourth lens group with a positive refractive power. When zooming betwee... | 10/14/2008 |
| 7433131 | Zoom lens and imaging apparatus Provided is a zoom lens allows size reduction in the depth direction and compactness. The zoom lens includes a plurality of lens groups (GR1 to GR5) and performs zooming by changing an inter-group distance. Of the plurality of lens groups (GR1 t... | 10/07/2008 |
| 7432974 | Image pickup device and image pickup optical system An optical system enables images of a wide range of natural subjects to be well reproduced with their colors, and provides an image pickup system including, at least, an image pickup optical system, an electronic image pickup device having three or more different sp... | 10/07/2008 |
| 7433132 | Zoom lens system and electronic image pickup apparatus using the same A four-unit zoom lens system includes in order from an object side, a first lens unit having a positive refracting power, a second lens unit having a negative refracting power, a third lens unit having a positive refracting power, and a fourth lens unit having a pos... | 10/07/2008 |
| 7428107 | Zoom lens and image pickup apparatus having the same A zoom lens includes first to fifth lens units arranged in sequence from an object side to an image side, and having positive, negative, positive, negative, and positive refractive powers in that order. The zoom lens performs zooming by moving the first to fifth len... | 09/23/2008 |
