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| Number | Title | Issue Date |
| 7761005 | Relay finder optical system of an single-lens reflex camera A relay finder optical system, of a single-lens reflex camera, includes a condenser lens group, a prism, and a relay lens group, in this order from a primary imaging plane. An image, which is formed on the primary imaging plane, and is upside down and inverted from ... | 07/20/2010 |
| 7697840 | Display screen device A display screen device includes a display panel on which a first image is displayed, and an electroluminescent display which displays a second image and is positioned to extend substantially entirely over one surface of the display panel so that the first image and... | 04/13/2010 |
| 7630627 | Viewfinder optical system and image pickup apparatus including the same At least one exemplary embodiment is directed to a viewfinder optical system which includes a first mirror having a roof shape configured to reflect light from an object image formed by a photographic lens towards the object image, a second mirror configured to refl... | 12/08/2009 |
| 7315504 | Optical pickup apparatus and manufacturing method thereof A front monitor-type optical pickup apparatus is composed of a window 10w for taking in a laser light beam, and a housing 10 for housing a front monitor detector 9 so as to face the window 10w. In the housing 10, the ... | 01/01/2008 |
| 7227706 | Image-taking lens apparatus An image-taking lens apparatus has an image sensor for converting an optical image of a subject into an electrical signal and an image-taking lens system for forming the optical image on the image sensor. The image-taking lens system includes a prism for bending the... | 06/05/2007 |
| 7224395 | Camera having a shutter to cut reverse-incident light from the eyepiece lens A camera comprises a beam splitter configured to divide an incident light from a subject through a photographing lens, an eyepiece lens configured to observe the incident light divided by the beam splitter with a viewfinder, a relay lens provided between the beam sp... | 05/29/2007 |
| 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 |
| 7180675 | Viewfinder and image pickup apparatus A viewfinder of a small size and a small thickness is implemented to achieve a miniaturization and reduction in thickness of an image pickup apparatus. The viewfinder includes an eyepiece system for expanding an image displayed on an image display element so as to b... | 02/20/2007 |
| 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 |
| 7113345 | Zoom lens, and electronic imaging system using the same A zoom lens with high optical specification performances and an incorporated electronic imaging system that is much slimmer in its depth direction, albeit having that zoom lens mounted thereon includes a lens group G1 located nearest to the object side, havin... | 09/26/2006 |
| 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 |
| 7061684 | Finder optical system and camera provided with the same An observation optical system of the present invention comprises an image erect optical system and an eyepiece optical system for observing an object image. The eyepiece optical system comprises a positive single lens having double convex surfaces and a negative men... | 06/13/2006 |
| 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 |
| 6945657 | Surveying instrument A surveying instrument includes a sighting telescope having an objective lens and an eyepiece; an erecting optical system functioning so that an image formed by said objective lens is viewed as an erect image through the eyepiece; and a light shield device, position... | 09/20/2005 |
| 6903885 | Light-projecting device A light-projecting device comprises a superimpose-plate, which is put on a focusing glass. A hollow pentagonal mirror has a roof reflecting plane, reflecting a light beam passing through the focusing glass and the superimpose-plate, a third reflecting plane, reflect... | 06/07/2005 |
| 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 |
| 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 |
| 6829113 | Image-forming optical system The present invention relates to a high-performance image-forming optical system made compact and thin by folding an optical path using reflecting surfaces arranged to minimize the number of reflections. A prism member 10 has a first entrance surface 11, | 12/07/2004 |
| 6819868 | Camera A camera is provided that includes a camera housing and a TFT panel, which permits verification of a formed image, located on the back of the camera housing. A strobe unit and an electronic viewfinder unit are located in the upper part of the camera housing. The ele... | 11/16/2004 |
| 6795650 | Camera having shared optics for optical viewfinding and for electronic capture and display An optical and electronic viewer of a camera has a body having entrance and exit openings and entrance and exit tunnels extending inward from respective openings. The body has a cross tunnel connecting the entrance and exit tunnels. An eyepiece is mounted at the exi... | 09/21/2004 |
| 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 |
| 6684029 | Finder optical system and camera having finder optical system A camera including a photographing optical system and a finder optical system, includes an objective optical system and an ocular optical system, the optical axes thereof being parallel with each other; a reflection surface which reflects a light bundle i... | 01/27/2004 |
| 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 |
| 6621606 | Optical system and device using the same The invention relates to a viewing and an image pickup optical system for display devices, which can be used with high efficiency at a plurality of wavelengths and enables bright images to be viewed with satisfactory color reproducibility. The optical sys... | 09/16/2003 |
| 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 |
| 6532343 | Camera finder device A finder device is disclosed in which a finder optical system is provided with an auto-focus function separate from that of a photographic optical system so that the subject image can be observed sharply even when the finder optical system undergoes a cha... | 03/11/2003 |
| 6532344 | Camera incorporating real-image finder The present invention concerns a camera incorporating a real-image finder, having a structure more compact than ever. The camera includes an objective optical system; an erect-image optical system, having a reflecting surface, to receive a light bundle pa... | 03/11/2003 |
| 6516156 | Camera having liquid crystal display A camera including a liquid crystal display in which an image formed by a photographing lens system of the camera is indicated; an ocular viewing optical system which includes a half-mirror surface and an eyepiece lens system, the half-mirror surface refl... | 02/04/2003 |
| 6510006 | Image-forming optical system A high-performance image-forming optical system made compact and thin by folding an optical path using reflecting surfaces arranged to minimize the number of reflections. The image-forming optical system has a single prism. When image-side three surfaces ... | 01/21/2003 |
| 6480681 | Adjustable viewfinder optical system for shoulder-supported cameras An adjustable viewfinder optical system for a shoulder-supported movie or video camera having interchangeable objective lenses. The system includes first and second lens groups aligned on an optical axis for receiving and relaying an image received from t... | 11/12/2002 |
| 6466743 | Real image type finder A real image type finder is provided with an imaging optical system, a focusing glass disposed at a focusing surface of the imaging optical system, an observing optical system for observing an image formed on the focusing glass, a case that accommodates t... | 10/15/2002 |
| 6445887 | Viewfinder for camera with adjustable diopter A viewfinder for a camera with an adjustable diopter includes an objective lens and an eyepiece lens each having an optical axis extending parallel to a longitudinal axis of the camera. Light rays from the objective lens are reflected by a mirror and dire... | 09/03/2002 |
| 6441977 | Optical apparatus with optical system having long optical path An appartus, such as a binocular telescope, with an optical system which includes a long optical path. The binocular telescope includes a first objective lens, a second objective lens, a first prism, a second prism, and a group of eye piece lenses. A body... | 08/27/2002 |
| 6442351 | View finder An inverse Galilean view finder has an object lens and an eyepiece lens. The front of the object lens is flat surface. First micro corner cube prisms are arranged in a frame of visual field around the external periphery of the flat surface. Second micro c... | 08/27/2002 |
| 6430375 | Finder optical system Disclosed is a finder optical system that is provided with a relay optical system that forms a second image by erecting an inverted first image formed on a first image plane through a taking leas of a camera, and a magnifying optical system through which ... | 08/06/2002 |
| 6377409 | Prism and viewing optical system using the prism Disclosed is a prism having a light incident surface, a light emerging surface, and at least one light reflection surface. The light incident on the light incident surface is reflected, inside the prism, by the light reflection surface, and emerged from t... | 04/23/2002 |
| 6314247 | View finder device having compact structure A view finder device has a Poro prism and a first optical system facing an emergent plane of the Poro prism. The first optical system is positioned beside the Poro prism and opposite to a recording medium passage through which an electro-developing record... | 11/06/2001 |
