Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8189276 | Photographing optical lens assembly A photographing optical lens assembly, sequentially arranged from an object side to an image side, comprising: the first lens element with negative refractive power having a convex object-side surface and a concave image-side surface, the second lens element with po... | 05/29/2012 |
| 8174777 | Zoom lens assembly This invention provides a zoom lens assembly in order from an object side toward an image side including a first lens group with negative refractive power, a second lens group with positive refractive power and a third lens group with positive refractive power. The ... | 05/08/2012 |
| 8164840 | Photographing optical lens assembly This invention provides a photographing optical lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with negative refractive power hav... | 04/24/2012 |
| 8149524 | Optical system and image pickup apparatus having the same An optical system includes, in order from an object side to an image side, a first lens having a negative refractive power and having a meniscus shape whose surface on the object side has a convex shape and whose surface on the image side has an aspheric shape, a se... | 04/03/2012 |
| 8023206 | Achromatic optical system for beam shaping An achromatic refractive beam shaping optical system that transforms the intensity distribution of a light beam, preferably provides transformation of a beam which intensity distribution described by Gaussian function to a beam of uniform intensity. The system consi... | 09/20/2011 |
| 8014083 | Imaging lens The present invention is an imaging lens of which optical performance does not deteriorate even in a high temperature environment, various aberrations are well corrected, optical length is short, and back focus is sufficiently secured, the imaging lens comprising a ... | 09/06/2011 |
| 8000037 | Imaging lens, imaging device, and mobile terminal Provided is an imaging lens, including, in order from an object side: a positive first lens; a second lens having a concave shape toward the object side; and (iā2) number of lens, wherein the i-th lens, which is the most image-side lens, includes: an i-th lens fla... | 08/16/2011 |
| 7961409 | Zoom lens system, optical apparatus, and method for zooming Providing a zoom lens system having excellent optical performance, an optical apparatus, and a method for zooming the zoom lens system. The zoom lens system includes, in order from an object, a first lens group G1 having negative refractive power, a second le... | 06/14/2011 |
| 7948692 | Photographing optical lens assembly This invention provides a photographing optical lens assembly including, in order from an object side to an image side: a first lens element with positive refractive power; a second lens element with negative refractive power having a concave object-side surface and... | 05/24/2011 |
| 7916405 | Imaging lens unit, imaging device, and portable terminal An imaging lens unit which achieves a lower profile without adversely affecting the optical performance. The imaging lens unit includes a first lens, an aperture stop, a second lens, and a third lens arranged sequentially along the optical axis from the object side ... | 03/29/2011 |
| 7889444 | Lens optical system A wide-angle lens optical system, including, in a sequence from an object side, a first lens group having a positive or negative refractive power, a stop, and a second lens group having positive refractive power, wherein the first lens group comprises, in a sequence... | 02/15/2011 |
| 7880981 | Imaging lens The present invention is an imaging lens of which optical performance does not deteriorate even in a high temperature environment, various aberrations are well corrected, optical length is short, and back focus is sufficiently secured, the imaging lens comprising a ... | 02/01/2011 |
| 7830622 | Imaging lens An imaging lens comprises, in order from an object side: an aperture stop; a first lens having a positive refractive power in a meniscus form having a convex surface facing toward the object; a second lens having a positive or negative refractive power in a meniscus... | 11/09/2010 |
| 7804653 | Imaging optical system for cameras An imaging optical system for cameras comprising a stop, a first lens, a second lens, and a third lens in order from object side to image side. The first lens is convex at the object side, and has positive refractive power and both surfaces of which are aspherical. ... | 09/28/2010 |
| 7782552 | Compact imaging lens system A compact imaging lens system includes three lenses. The first lens is a positive meniscus lens having a convex side facing toward the image side, which has a big focusing power and is provided to capture image and for balance of aberration. The first lens serves to... | 08/24/2010 |
| 7764444 | Three-unit zoom lens system and image pickup apparatus using the same A three-unit zoom lens system includes in order from an object side thereof, a first lens unit G1 having a negative refracting power, a second lens unit G2 having a positive refracting power, a third lens unit G3 having a positive refracting pow... | 07/27/2010 |
| 7733583 | Small-diameter objective optical system Reducing the outer diameter and effectively correcting various aberrations realizes a small-diameter objective optical system suitable for in vivo observation with a high numerical aperture. The invention provides a small-diameter objective optical system comprising... | 06/08/2010 |
| 7733582 | Imaging lens An imaging lens enables a large focal depth and low error sensitivity. The imaging lens satisfies ā0.016 | 06/08/2010 |
| 7715120 | Lens module and camera module Provided is a camera module. The camera module includes an aperture stop, a first lens, a second lens, a third lens, and an image sensor. The first lens has a positive refractive power to transmit light that has passes through the aperture stop, and the second lens ... | 05/11/2010 |
| 7715121 | Optical system and optical apparatus including optical system An optical system used for an image pickup apparatus including an image pickup element is provided. The optical system includes a negative lens disposed furthest away on the enlargement conjugation side and satisfies the following condition: 80 degrees | 05/11/2010 |
| 7706086 | Imaging lens An imaging lens includes: in order from an object side, an aperture diaphragm; a first lens of a positive lens having a convex surface on the object side; a second lens of a meniscus lens having a concave surface on the object side; and a third lens. The imaging len... | 04/27/2010 |
| 7684128 | Optical lens system for taking image An optical lens system for taking image consisting of three lens elements with refractive power, in order from the object side to the image side: a meniscus first lens element with positive refractive power having a convex object-side surface; an aperture stop; a me... | 03/23/2010 |
| 7656594 | Color image readout lens and color image readout apparatus A color image readout lens comprises, in order from an object side: a first group comprising a positive lens convex toward the object side and a biconcave negative lens; a stop; a second group comprising one diffractive optical element that has at least one flat sur... | 02/02/2010 |
| 7656593 | Imaging lens An imaging lens of which optical performance does not deteriorate even in a high temperature environment, various aberrations are well corrected, optical length is short, and back focus is sufficiently secured. This imaging lens comprises a first junction type compo... | 02/02/2010 |
| 7623307 | Imaging lens An imaging lens is provided and includes: in order from an object side of the imaging lens, a first lens having a positive refractive power; a second lens having one of a positive refractive power and a negative refractive power; and a third lens that corrects for a... | 11/24/2009 |
| 7599131 | Imaging lens An imaging lens is provided and includes: in order from an object side of the imaging lens, an aperture diaphragm; a first lens having a positive refractive power and having a convex surface on the object side; a second lens having a negative refractive power and ha... | 10/06/2009 |
| 7511899 | Image pickup optical system and digital apparatus using the same An image pickup optical system comprising three lenses for forming an image on a solid imaging element, wherein the comprised lenses are, from an object side, a positive first lens (FL1) whose convex surface is directed toward the object side, an aperture sto... | 03/31/2009 |
| 7466501 | Fixed-focus lens A fixed-focus lens including a first lens group, a second lens group, and a third lens group arranged from an object side to an image side in sequence is provided. The first lens group has a negative refractive power, and includes at least one aspheric lens. The sec... | 12/16/2008 |
| 7460314 | Three-piece type optical lens A three piece type optical lens includes a first lens element with positive refractive power, a second lens element with negative refractive power, a third lens element with negative refractive power, an IR cut-off filter and an image sensor arranged along an optica... | 12/02/2008 |
| 7460315 | Lens system A lens system includes a positive refractive power first lens, a negative refractive power third lens, and a negative refractive power second lens in that order from the object side of the lens system. Wherein the lens system satisfies the following conditions: (1) ... | 12/02/2008 |
| 7450323 | Imaging lens and imaging device including the imaging lens It is to provide an imaging lens and an imaging device including the imaging lens that can secure telecentricity and achieve excellent resolution through sufficient correction of various aberrations, while being compact and light. The imaging lens comprises, ... | 11/11/2008 |
| 7446956 | Zoom lens system, imaging apparatus and method for varying focal length A zoom lens system having higher optical performance, a wide angle of view, a high zoom ratio, and compactness include, in order from an object, a first group having negative power, a second group having positive power, and a third group having positive power. At le... | 11/04/2008 |
| 7443613 | Three-piece lens assembly A three-piece lens assembly comprises: a first lens group, a second lens group, a third lens group and an aperture. The first lens group is a positive meniscus lens with a convex surface facing the object side and with another surface facing an aperture. The second ... | 10/28/2008 |
| 7443614 | Compact image pickup lens A compact image pickup lens includes, in order from an object side to an image side, a first lens element G1 of positive refractive power, a second lens element G2 of positive refractive power, and a third lens element G3 of negative refractive ... | 10/28/2008 |
| 7436605 | Imaging lens and camera apparatus An imaging lens is configured sequentially from the object side by: a first lens having a meniscus shape where a convex surface is directed to the object side; a second lens; and a positive third lens in which an image-side surface is a convex surface. The first len... | 10/14/2008 |
| 7426084 | Zoom lens system, lens barrel, imaging device and camera A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein an interval between at least any two lens units is changed so that an optical image is formed with a continuously variable magnification, any one of the lens ... | 09/16/2008 |
| 7400458 | Imaging optics with wavelength dependent aperture stop An imaging system includes a wavelength dependent aperture stop, which transmits light with different ranges of wavelengths through apertures of different diameters. Thus, different colored light will have different F-stops, which can be selected based on the power ... | 07/15/2008 |
| 7397612 | Optical system for taking image An optical system for taking image comprises three lens elements with refractive power, from the object side to the image side: a first lens element with negative refractive power, a second lens element with positive refractive power, and a third lens element with p... | 07/08/2008 |
| 7394602 | Optical system for taking image An optical system for taking image comprises three lens elements with refractive power, from the object side to the image side: a first positive lens element having a convex front surface and a concave rear surface, and the front surface being aspheric; a negative p... | 07/01/2008 |
| 7385770 | Imaging lens system An object is to provide an imaging lens system which can achieve reduction of the size and weight while maintaining the high optical performance. The imaging lens system of the present invention comprises, in order form an object side to an imaging surface side: a f... | 06/10/2008 |
