Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7729610 | Imaging apparatus and light shielding member There is provided an imaging apparatus having (a) an eyepiece type viewfinder formed on a predetermined plane of the imaging apparatus; (b) an operation member for diopter adjustment of said viewfinder; and (c) a light shielding member for suppressing entrance of ex... | 06/01/2010 |
| 7706682 | Wide-angle slip-on viewfinder on rangefinder cameras for photographic recordings with different focal lengths Described is a wide-angle slip-on viewfinder (1) on rangefinder cameras for analog and digital wide-angle recordings of different image recording formats with lenses of different focal lengths, comprising three lens groups (LG1, LG2, LG3)... | 04/27/2010 |
| 7414669 | Image capturing apparatus with a laser-framing viewfinder An image capturing apparatus with a laser-framing viewfinder includes a housing, a laser source installed inside the housing for generating a laser beam, a first lens installed inside the housing for diverging the laser beam, a framing mask for masking the laser bea... | 08/19/2008 |
| 7391968 | Finder optical system for a single-lens reflex camera An eyepiece includes, in order from the object side, a first lens with positive power, a second lens with positive power, and a third lens with negative power. The first lens is a positive meniscus lens with a convex surface facing the object side, and the eyepiece ... | 06/24/2008 |
| 7355795 | Head-up display device with curved optical surface having total reflection A display device for displaying information is provided with an optical system for guiding the light of the display device to the eye, the optical system having, in the order in the proceeding direction of the light, an entrance face for receiving the light, a curve... | 04/08/2008 |
| 7262919 | Head-up display device with curved optical surface having total reflection A display device for displaying information is provided with an optical system for guiding the light of the display device to the eye, the optical system having, in the order in the proceeding direction of the light, an entrance face for receiving the light, a curve... | 08/28/2007 |
| 7253960 | Head-up display device with rotationally asymmetric curved surface A display device for displaying information is provided with an optical system for guiding the light of the display device to the eye, the optical system having, in the order in the proceeding direction of the light, an entrance face for receiving the light, a curve... | 08/07/2007 |
| 7236698 | Imaging system The invention relates to an imaging system equipped with an electronic viewfinder suitable for compactness and having a sufficient angle of viewing field and satisfactory optical performance, especially the ability to prevent harmful light. The imaging system compri... | 06/26/2007 |
| 7184208 | Variable power finder and imaging apparatus A variable power finder is proposed, which comprises: an objective system; an inverting system; and an ocular system, in order from object side. The third lens group of the objective system is constituted by one lens prism having at least one reflection surface, and... | 02/27/2007 |
| 7142242 | Prismatic image forming optical device adapted for miniaturization An image forming optical device to form an image of optical light having prism shaped first and second optical devices. The first optical device has a first interface to pass the optical light into the first optical device, a first reflect interface to reflect the o... | 11/28/2006 |
| 7133210 | Eyepiece lens An eyepiece lens includes first lens group G1 having a negative refracting power including a negative meniscus lens with a concave surface facing eyepoint E.P side, second lens group G2 having a positive refracting power including a lens with both conv... | 11/07/2006 |
| 7102827 | Eyepiece lens The object of the present invention is to provide an eyepiece lens having a large pupil diameter of 10 mm or more, securing higher magnification, equipped with a high quality diopter adjustment function at low cost. The eyepiece lens includes, in order from an eye p... | 09/05/2006 |
| 7085048 | Real image type variable magnification finder and imaging apparatus using the same A real image type variable magnification finder comprises, an object optical system having positive refracting power which forms an objective image as a middle image, a view frame arranged near a position of the middle image, and an eyepiece optical system having po... | 08/01/2006 |
| 7076161 | Lens-fitted photo film unit and printing method A lens-fitted photo film unit comprises a main body, a bottom lid, and a photo film. The main body has an exposure chamber with a taking lens. The exposure chamber is provided with a plane mirror disposed in such a manner as to be inclined 45 degrees with respect to... | 07/11/2006 |
| 7019909 | Optical system, image display apparatus, and image taking apparatus A small optical system that is capable of widening an angle of view is provided. This optical system is provided with a first surface having a reflecting action and a second surface that reflects a light beam reflected on this first surface toward the first surface ... | 03/28/2006 |
| 7020392 | Finder housing An objective that is a concave lens and an ocular that is a convex lens are arranged in a finder housing with a predetermined space between them. The finder housing is molded of a black plastic material. A diaphragm portion is integrally formed inside an inner perip... | 03/28/2006 |
| 7012756 | Display optical system, image display apparatus, image taking optical system, and image taking apparatus A display optical system for guiding light from an image to an observer or a surface projecting an image thereon with a first optical system and second optical system. The first optical system having a first surface formed on a transparent body with a reflecting act... | 03/14/2006 |
| 6992821 | Variable power finder and imaging apparatus A variable power finder is proposed, which comprises: an objective system; an inverting system; and an ocular system, in order from object side. The third lens group of the objective system is constituted by one lens prism having at least one reflection surface, and... | 01/31/2006 |
| 6973266 | Finder optical system A finder optical system includes an eyepiece optical system with a positive refracting power. The eyepiece optical system includes an optical unit with a positive refracting power and a lens unit with a positive refracting power, In the eyepiece optical system, a re... | 12/06/2005 |
| 6962447 | Camera provided with eyepiece A camera includes a screen on which an image of an object is projected, a plurality of reflection surfaces for erecting the image on the screen, and an eyepiece system with positive refracting power for observing the image. In this case, the eyepiece system includes... | 11/08/2005 |
| 6930719 | Lens unit structure for SLR digital camera A lens unit structure for an SLR digital camera is provided with a photographing lens block and a finder block. The photographing lens block includes a lens barrel having a pair of guide shafts extending in parallel with an optical axis. Ends of the guide shafts are... | 08/16/2005 |
| 6927907 | Viewing device A reference plate is situated on an optical axis of an eyepiece. The reference plate includes a first glass plate and a second glass plate. One surface of the first glass plate and one surface of the second glass plate are bonded. Cross hairs are formed on the bonde... | 08/09/2005 |
| 6903774 | Viewfinder device including first and second prisms to reflect light from outside the viewing area A thin viewfinder device includes, in order an object side to a viewing eye side, a first prism, and a second prism disposed separately from the first prim across an air gap. The first prism, the air gap and the second prism are arranged in such a manner that an obj... | 06/07/2005 |
| 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 |
| 6856465 | Optical viewfinder A optical viewfinder has a single viewfinder element formed from a homogenous material such as glass or plastic. The viewfinder element has an object surface and an image surface. The object and image surfaces are centered on a common optical axis. The object surfac... | 02/15/2005 |
| 6847482 | Image-erecting viewing optical system An image-erecting viewing optical system includes a first prism having an incident surface and at least two reflection surfaces, a front lens group of an objective optical system, a second prism having an incident surface and at least two reflection surfaces, a rear... | 01/25/2005 |
| 6836619 | Microlens array, optical apparatus, single lens reflex camera and optical finder In the microlens array, a plurality of microlenses are formed with an irregularity or probability-distributed regularity so as to differ from a hypothetical base pattern, the hypothetical base pattern having apexes of hypothetical microlenses each spaced apart from ... | 12/28/2004 |
| 6804462 | Camera provided with eyepiece A camera includes a screen on which an image of an object is projected, a plurality of reflection surfaces for erecting the image on the screen, and an eyepiece system with positive refracting power for observing the image. In this case, the eyepiece system includes... | 10/12/2004 |
| 6724991 | Binocularly viewable holographic viewfinder and camera A camera has a body and a taking lens mounted to the body. The taking lens defines a subject field. A viewing window is joined to the body. The viewing window is transmissive of a light image of the subject field. The viewing window bears a holographic image of a re... | 04/20/2004 |
| 6724992 | Finder and camera using such finder A compact finder with excellent optical performance, and a camera including the finder are disclosed. The finder of the present invention includes an objective optical system, and an eyepiece optical system. The objective optical system includes, from an object side... | 04/20/2004 |
| 6711356 | Real-image variable-magnification viewfinder A real-image variable-magnification viewfinder includes objective optical system having positive optical power, eyepiece optical system having positive optical power, and erecting optical system. The objective optical system has first lens unit having positive optic... | 03/23/2004 |
| 6701082 | Camera having diopter adjustment mechanism A camera has a rangefinder device having an optical system constituted by a plurality of optical elements and a diopter adjustment mechanism capable of adjusting the observation diopter of the rangefinder device by operation by the user from outside the c... | 03/02/2004 |
| 6692163 | Single-lens reflex camera provided with eyepiece A single-lens reflex camera provided with an eyepiece includes a screen on which an image of an object is projected, a plurality of reflecting surfaces for erecting the image projected on the screen, and an eyepiece with positive refracting power for obse... | 02/17/2004 |
| 6671461 | 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... | 12/30/2003 |
| 6597872 | Inverted Galilean finder and camera An inverted Galilean finder is composed of an objective lens of a negative power and an eyepiece of a positive power, which are formed from a polystyrene resin by injection molding. The objective lens has a concave surface oriented to the eyepiece, and th... | 07/22/2003 |
| 6587644 | Finder unit A finder unit includes an objective optical system for forming a viewing image, an inverting optical system for making the viewing image formed by the objective optical system an erecting normal image, an eyepiece optical system for viewing the viewing im... | 07/01/2003 |
| 6571068 | View finder having an object lens system and an eye-piece lens system arranged on a common shaft The invention relates to a view finder with improved structure for providing accurate posisioning and alignment of optical elements of its optical system. The view finder comprises an object lens system at least one lens of which is movable along an optic... | 05/27/2003 |
| 6556782 | Camera having viewfinder box extending from cover to cover and assembly method A camera has a capture unit and a body holding the capture unit. The body has a front cover, a rear cover, and an internal cavity disposed between the covers. The body has a viewfinder box extending from an outer surface of one of the covers to an outer s... | 04/29/2003 |
| 6515797 | Viewfinder apparatus and optical apparatus having the same A viewfinder apparatus includes an objective lens unit, an eyepiece unit, an image display element for displaying an image formed by an image pick-up element, an illuminating device for illuminating the image display element, an optical system for introdu... | 02/04/2003 |
| 6510010 | Real image mode finder optical system and lens A real image mode finder optical system includes an objective optical system with a positive refracting power, an image erecting optical system having a plurality of reflecting sections for erecting an image formed by the objective optical system, and an ... | 01/21/2003 |
