Patents Issued in June 12, 2003
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Publication number: 20030107776Abstract: Disclosed is an Internet FAX apparatus which, after receiving an Internet address from a certain destination, can communicate with the same destination in later transmission or during communication by connecting to a LAN and switching to an Internet FAX mode requiring no communication charge. An Internet facsimile apparatus on the receiving side transmits its Internet facsimile function and Internet address on an NSF signal in a standard protocol of G3 facsimile transmission and/or transmits its telephone number, Internet facsimile function, and Internet address on TSI and NSS signals in the standard protocol of G3 facsimile communication. The Internet facsimile apparatus registers an Internet facsimile function and Internet address of a partner apparatus as destination data.Type: ApplicationFiled: February 26, 1999Publication date: June 12, 2003Inventor: TORU MAEDA
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Publication number: 20030107777Abstract: An image processing system comprises a photocopier and an information processor. The photocopier scans and images each page of a document, creates a thumbnail image from each scanned image, and sends the thumbnail images to the information processor. Using the information processor, a user then specifies an image output sequence by rearranging the thumbnail images with a pointing device. The photocopier receives this output sequence information from the information processor, and using the printer section of the photocopier prints the scanned images according to the specified output sequence contained in the received sequence information.Type: ApplicationFiled: February 26, 1999Publication date: June 12, 2003Inventors: YASUSHI YAMADE, TAKENORI IDEHARA
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Publication number: 20030107778Abstract: A method of compensating a zipper image by a K-value, and a method of calculating the K-value. Whether the nth primitive pixel of the mth line is obtained by primary line scan is determined. If the nth primitive pixel of the mth line is obtained by primary line scan. the nth primitive pixel of the mth line is compensated as the nth primitive pixel of the mth line minus a sum of the (n−1)th primitive pixel of the (m−k)th line and the (n+1 )th primitive pixel of the (m−k)th line multiplied by the K-value. If the nth primitive pixel of the mth line is obtained by secondary line scan, the nth primitive pixel of the mth line is compensated as the nth primitive pixel of the mth line minus a multiplication of the K-value and a sum of the (n−1)th primitive pixel of the (m+k)th line and the (n+1)th primitive pixel of the (m+k)th line.Type: ApplicationFiled: December 10, 2001Publication date: June 12, 2003Inventor: Chen-Hsiang Shih
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Publication number: 20030107779Abstract: In accordance with the present invention, a method and a system for promoting scanning speed are provided. The method comprises steps of determining a transmission rate of a transit interface, adjusting system clock responsive to the transmission rate of the transit interface to change a data generated rate, and scanning an original to generate data at the rate controlled by the system clock. The key aspect of the present invention is by adjusting system clock to change the data generated rate corresponding to the transmission rate of the transit interface. Therefore, in response to the transmission rate of the transit interface, the system clock is adjusted to produce the data at a rate that can reduce the possibility of memory buffer full leading to the reduction in the time wasting on start-stop processes and therefore promote the scanning speed without requiring the increase in size of a memory buffer.Type: ApplicationFiled: December 11, 2001Publication date: June 12, 2003Applicant: UMAX DATA SYSTEMS INCInventors: Chun-Jen Chen, Kuo-Jeng Wang
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Publication number: 20030107780Abstract: A paper cartridge of a printer including a cartridge body to load papers to be picked up, and a friction plate to provide a predetermined friction force to a front end of the papers picked up at the cartridge body. The friction plate is sloped at a predetermined angle in the body so that the friction plate can be moved by being pushed by the front end of the paper.Type: ApplicationFiled: November 19, 2002Publication date: June 12, 2003Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Sung-Wook Kang, Yeong-Eek Yoo
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Publication number: 20030107781Abstract: An improved image processing technology capable of obtaining a synthesized image file having high reproducibility without causing missing image parts due to partial or complete overlap among extracted areas when a document image file is created via synthesis of character, graphic and photograph areas that have been extracted from image data obtained via reading of an original document and that have been subjected to image processing. According to this image processing technology, circumscribed rectangular areas for each effective image area of image data is extracted while complementing pixels other than pixels comprising the effective image area using prescribed complementary pixels, and the complementary pixels for the extracted areas are rendered transparent.Type: ApplicationFiled: December 10, 2002Publication date: June 12, 2003Inventor: Masahiro Ozawa
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Publication number: 20030107782Abstract: An image reading apparatus includes a CCD sensor which reads an image of an original document and converts the image into an electrical signal, in which an optical axis of light reflected by the original document is adjusted and allowed to project to the CCD sensor, the CCD sensor reads the image of the original document and converts the image into an electrical signal and to output the electrical signal. The image reading apparatus comprises a processing circuit which detects a CCD output value of the CCD sensor which is varied in accordance with a deviation of the optical axis, and an optical axis adjusting mechanism (first mirror and first carriages) which adjusts the optical axis such that an output value detected by the processing circuit becomes an appropriate value.Type: ApplicationFiled: December 10, 2001Publication date: June 12, 2003Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventor: Hidetoshi Aoki
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Publication number: 20030107783Abstract: An image forming apparatus reads the amount of use of each unit from a first storage section which stores the amount of use of each unit. The image forming apparatus reads a condition, set to enable each unit to execute an optimal operation, from a second storage section which stores the condition, on the basis of the read amount of use of each unit, thereby operating each unit under the read condition and executing an image forming operation.Type: ApplicationFiled: December 11, 2001Publication date: June 12, 2003Applicant: Toshiba Tec Kabushiki KaishaInventor: Hiromichi Mitamura
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Publication number: 20030107784Abstract: An image reading apparatus includes a sensor including a plurality of photoelectric converters for reading information on a document, a detecting circuit for detecting movement of a document cover, a drive circuit for supplying driving pulses for driving the sensor, and a control circuit for controlling the drive circuit so that the driving pulses are changed according to a detection result generated by the detecting circuit.Type: ApplicationFiled: December 5, 2002Publication date: June 12, 2003Applicant: Canon Kabushiki KaishaInventor: Kazunori Togashi
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Publication number: 20030107785Abstract: 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 system comprises a first prism 3, a second prism 4 and a volume hologram element 6 disposed between them and cemented to them. The hologram element 6 comprises a first grating vector corresponding to at least a first wavelength and a second grating vector corresponding to a second wavelength shorter than the first wavelength.Type: ApplicationFiled: July 2, 2002Publication date: June 12, 2003Applicant: OLYMPUS OPTICAL CO., LTD.Inventors: Tetsuhide Takeyama, Yasuyuki Ohyagi, Daijiro Kodama
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Publication number: 20030107786Abstract: A planar and fiber optical grating structure fabrication apparatus uses non-precision substrate material while providing high optical precision phase mask and grating capability with dramatically reduced cost of material and production. The phase mask is a volume hologram resulting from refractive index change in the media. When apodized, the volume hologram phase mask incorporates a change in diffraction efficiency along its length, without a reduction in the average transmittance through the mask, thus providing a uniform average refractive index of the resultant grating structure along its full length. The phase mask intrinsically produces exactly two diffraction orders, is functional over a wide wavelength range without substantive interference from undesired diffraction orders while still maintaining adequate quality of the structure being inscribed.Type: ApplicationFiled: September 19, 2002Publication date: June 12, 2003Inventor: Arkady Bablumyan
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Publication number: 20030107787Abstract: A planar and fiber optical grating structure fabrication apparatus uses a phase mask that intrinsically contains apodization. The phase mask is a volume hologram resulting from refractive index change in the media. The apodized volume hologram phase mask incorporates a change in diffraction efficiency along its length, without a reduction in the average transmittance through the mask, thus providing a uniform average refractive index of the resultant grating structure along its full length. The phase mask intrinsically produces exactly two diffraction orders, the zero order and the first order, and is functional over a wide wavelength range without substantive interference from undesired diffraction orders while still maintaining adequate quality of the structure being inscribed.Type: ApplicationFiled: September 25, 2002Publication date: June 12, 2003Inventor: Arkady Bablumyan
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Publication number: 20030107788Abstract: An optical system includes three optical systems. The first has a coupling lens. The second includes a lens having a positive power in a vertical scanning direction and forms the light flux into a line image extending in the horizontal scanning direction on a deflector. The third includes a first lens having a positive power in the horizontal scanning direction, and a second lens having a positive power in the vertical scanning direction. Lateral magnification in the horizontal scanning direction is set larger than that in the vertical scanning direction. Temperature near the first lens is maintained higher than that near the second lens.Type: ApplicationFiled: September 20, 2002Publication date: June 12, 2003Inventors: Yoshinori Hayashi, Seizo Suzuki, Atsushi Kawamura, Hiromichi Atsuumi, Kohji Sakai, Akihisa Itabashi
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Publication number: 20030107789Abstract: An optical system having a deformable mirror is such that, in order to minimize variation of an image position on an imaging plane, or of a ray position, in at least two states where shapes of the deformable mirror are different, first- and lower-order terms of an equation expressing a surface of the deformable mirror are changed in the two states. As a result, an optical system including variable optical-property elements such as a variable focal-length lens, a deformable mirror, and a variable prism, and an optical apparatus having the optical system can be provided which is small in power consumption, noiseless, short in response time, simple in mechanical structure, and low in cost, minimize variation of the image position on the imaging plane, and permits sufficient correction for aberration caused by a shape error or the like.Type: ApplicationFiled: July 12, 2002Publication date: June 12, 2003Inventor: Kimihiko Hishioka
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Publication number: 20030107790Abstract: An optical wavelength conversion device comprising: a modulating signal generating unit for generating a modulating signal; an optical modulating unit for modulating input light by the modulating signal; and wavelength select means for extracting only a necessary component from an optical signal generated by the optical modulating unit. In the optical wavelength conversion device, the optical modulating unit may be an amplitude modulator or a phase modulator. The modulating signal may be an electrical signal or an optical signal. When the modulating signal is an optical signal, the optical signal consists preferably of light of a plurality of wavelength components.Type: ApplicationFiled: November 12, 2002Publication date: June 12, 2003Inventor: Shoichi Kishimoto
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Publication number: 20030107791Abstract: A control device for controlling an electro-optic modulator which receives an optical input signal, modulates the optical input signal with an electrical input signal and a bias voltage signal, and outputs the modulated optical signal is provided. The control device includes: a light source for providing the optical input signal used for the optical modulation to the electro-optic modulator; an optical input measuring unit for measuring the intensity of the optical input signal outputted by the light source; an optical output measuring unit for measuring the intensity of the optical output signal outputted by the electro-optic modulator; and a controller for adjusting the bias voltage signal and the gain of the electrical input signal depending on the intensity of the optical input signal and the optical output signal measured respectively by the optical input measuring unit and the optical output measuring unit.Type: ApplicationFiled: March 1, 2002Publication date: June 12, 2003Inventors: Myong Seung I1, Kim Bong Kyu, Lee Jyung Chan, Hyun Jae Lee
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Publication number: 20030107792Abstract: In order for binary optical pulse sequences to be able to be added and/or subtracted in the context of an electro-optical device and a method for the secure transmission of information using optical signals, an interferometer is used, which has at least one electro-optical switch or modulator positioned in one of its branch sections.Type: ApplicationFiled: November 21, 2002Publication date: June 12, 2003Inventors: Wolfgang Dultz, Heidrun Schmitzer, Leonid Beresnev, Gisela Dultz
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Publication number: 20030107793Abstract: In one aspect the system serves as a transmitter and comprises an optics system; a plurality of source elements positioned on the focal plane; and, a small angle beam steerer. The plurality of source elements are each capable of providing a point source of radiation to the optics system. The optics system provides a collimated output. The small angle beam steerer receives the collimated output and redirects the collimated output through a small angular deviation. The redirected output is thus transmitted in a desired direction without a need for mechanical gimbals and is capable of covering a large angular range with respect to the optical axis of the optics system. The system can also be implemented as a receiver.Type: ApplicationFiled: December 7, 2001Publication date: June 12, 2003Inventor: C. David Capps
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Publication number: 20030107794Abstract: A micro mirror array including an upper wafer having a plurality of movable reflective surfaces located thereon and a lower wafer located below and coupled to the upper wafer. The lower wafer has an upper surface including a plurality of electrodes located thereon for controlling the movement of the movable reflective surfaces when a voltage is applied thereto. The lower wafer further includes control electronics generally spaced away from the upper surface and coupled to the electrodes for controlling the voltages applied to the electrodes.Type: ApplicationFiled: December 11, 2001Publication date: June 12, 2003Inventors: James W. Siekkinen, Xiaofeng Yang
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Publication number: 20030107795Abstract: A special record format used for commanding light pattern shapes and addressable light pattern shape generator. The command format includes a first part which commands a specified gobo and second parts which command the characteristics of that gobo. The gobo is formed by making a default gobo based on the type and modifying that default gobo to fit the characteristics.Type: ApplicationFiled: October 15, 2002Publication date: June 12, 2003Applicant: Light and Sound Design, Ltd., a British corporationInventor: Mark Hunt
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Publication number: 20030107796Abstract: A deformable mirror (10) with an at least quasi-continuously deformable optically effective surface (12) has a floatingly supported mirror plate (11) which is positioned along its edge by a portion of the adjusting members (14.1), whereas the other portion of the adjusting members (14.2) locally individually deforms the mirror plate (11) for the purposes of wave front correction. In that respect all adjusting members (14.1, 14.2) are fixed to the rear side (13) of the mirror plate (11), with a coupling portion (11) which is provided with a desired-flexion location (constriction (25)).Type: ApplicationFiled: December 10, 2002Publication date: June 12, 2003Applicant: Diehl Munitonssysteme GmbH & Co. KGInventors: Klaus Bar, Berndt Warm
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Publication number: 20030107797Abstract: The invention contemplates anisometrically shaped carbon-containing particles for use as the particles of a liquid light valve suspension, films and light valves. The anisometric carbon-containing particles are crystalline or amorphous particles and can have various geometrical shapes including, for example, flakes. The above object is achieved by carefully controlling the size and shape of such particles.Type: ApplicationFiled: December 27, 2002Publication date: June 12, 2003Applicant: Research Frontiers IncorporatedInventor: Robert L. Saxe
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Publication number: 20030107798Abstract: A wavelength converter is disclosed. The converter comprises a broadband light source producing light having a plurality of wavelengths. Further, a semiconductor optical amplifier is provided that receives the light from the light source. The semiconductor optical amplifier amplifies the light under the control of a control signal related to an optical signal of a first wavelength. Next, a demultiplexer receives the output of the semiconductor optical amplifier and extracts from the amplified optical signal at least one of the plurality of wavelengths.Type: ApplicationFiled: September 26, 2002Publication date: June 12, 2003Inventors: Jianjun Zhang, Peiching Ling, Jinliang Chen, Ming Xu
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Publication number: 20030107799Abstract: A frequency shifting device. The present invention provides a device and method for shifting a frequency of an optical signal comprising the steps of providing a layer of optically refractive material having a moving refractive boundary responsive to an application of an electrical signal. The inventive device includes a layer of optically refractive material having a refractive boundary responsive to an application of an electrical signal and an arrangement for providing an electrical signal to the layer to effect a predetermined frequency shift of an optical signal passing therethrough. In an illustrative embodiment, the device includes an active polymer layer, an optically conductive first cladding disposed beneath the active polymer layer, and a second cladding layer disposed above the active polymer layer, a microstrip line disposed over the second cladding layer and a ground plane beneath the first cladding layer.Type: ApplicationFiled: December 5, 2001Publication date: June 12, 2003Inventors: Ilya Y. Poberezhskiy, Harold R. Fetterman, Joseph Michael
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Publication number: 20030107800Abstract: Arrangement for controlling and/or displaying microscope functions, preferably in an inverted microscope, wherein a display is provided at or near the eye level of a user, and the display can be removed. The adjustment and/or storage of microscope functions is carried out via the display. In a method for controlling microscope functions, an automatic switching of the light source and/or illumination optics is carried out to pre-stored values and/or positions when a reflector turret is switched.Type: ApplicationFiled: October 15, 2002Publication date: June 12, 2003Inventors: Gerhard Doering, Horst Bruch, Matthias Gonschor, Ralf Boecker, Carsten Hoyer, Michael Wagener, Leander Dietzsch
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Publication number: 20030107801Abstract: 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 lens group of the objective optical system, a field stop, and an eyepiece optical system, in this order from the object. One reflection surface of the first or second prism includes a roof-mirror surface.Type: ApplicationFiled: December 2, 2002Publication date: June 12, 2003Applicant: PENTAX CorporationInventors: Shinichiro Ishii, Satoru Nemoto
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Publication number: 20030107802Abstract: A screen assembly that combines an angle re-distributing prescreen with a conventional diffusion screen is disclosed. The prescreen minimizes or eliminates the sensitivity of the screen assembly to projector location. The diffusion screen provides other desirable screen characteristics. Compatible screen structures are also disclosed. along with methods for fabricating high resolution prescreens. Finally, means for maintaining the desired relationship between the prescreen and the diffusion screen are disclosed.Type: ApplicationFiled: October 4, 2002Publication date: June 12, 2003Inventors: Matthew B. Dubin, Brent D. Larson
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Publication number: 20030107803Abstract: A rear-projection screen is formed by adhesively bonding a front transparent sheet (2f) to the front surface of a transparent plate (3) on a viewing side (A), and adhesively bonding a wide-angle diffusing sheet (2r) to the rear surface of the transparent plate (3) on an image-projecting side. The front transparent sheet (2f) is provided in its front surface with a plurality of horizontal, parallel, minute ridges (4) having a triangular cross section. A side surface facing up or down of the two side surfaces of each minute ridge (4) is coated with a shading film (5), and the other side surface is transparent. The surface on the viewing side of the rear-projection screen does not reflect images even in a bright environment and are capable of displaying high-definition images having a high black level. The rear-projection screen can be used for forming a large screen.Type: ApplicationFiled: September 11, 2002Publication date: June 12, 2003Inventors: Koji Tanaka, Kazumi Kuroda, Yoshio Wakabayashi, Tatsufumi Fukuda
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Publication number: 20030107804Abstract: A large-area display is composed of two or more adjacent panels, in which the overall display provides a consistent perception of depth (and/or other characteristics of the images) in all panels from each viewing position. This is accomplished by generating a first panel having a first repeating pattern in an arrangement of successive segments of the images, and generating a second panel to be displayed adjacent to the first panel, the second panel having a second repeating pattern in an arrangement of successive segments of the images that are in the same order as the first repeating pattern but starting at a different element of the repeating pattern from the first element of the first repeating pattern, and assembling the panels adjacent to each other, thereby allowing corresponding images to be displayed on the adjacent panels when viewed from a range of various view points.Type: ApplicationFiled: November 8, 2002Publication date: June 12, 2003Inventor: Eugene Dolgoff
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Publication number: 20030107805Abstract: Apparatus and method for the display of autostereoscopic images, in which two or more perspective views are generated by a single transmissive display screen, such as an active matrix LCD, is provided. A structured light source behind the screen directs light through different sets of display elements to correspondingly different viewing zones. The structured source comprises, in addition to two crossed arrays of cylindrical convergent optical elements, two linear arrays of polarisation altering elements which, in conjunction with the convergent arrays and the first polariser of the LCD, prevent light from passing through a particular set of display elements and reaching the wrong viewing zone. In some embodiments one or both of the polarisation altering arrays may be programmed. Observer co-ordinate data permits the correct viewing zone to be co-located with each of the observer's corresponding eyes, including means for accommodating changes in the observer's distance from the display.Type: ApplicationFiled: January 10, 2003Publication date: June 12, 2003Inventor: Graham Stewart Brandon Street
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Publication number: 20030107806Abstract: Magnification viewer includes a conventional glasses and a pair of magnifying lens units. The magnifying lens units are fixed to respective eyeglasses of the conventional glasses so that a wearer of the glasses can observe a magnified image of an object through the magnifying lens units. The magnifying lens unit includes an ocular and an objective lens that constitute a Galilean telescope. A prism is disposed between the ocular and the objective lens for deflecting the optical axis of the magnifying lens unit towards an object placed below the head of a wearer.Type: ApplicationFiled: October 11, 2002Publication date: June 12, 2003Applicants: PENTAX Corporation, Rhyo KIMInventors: Masao Jojiki, Rhyo Kim
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Publication number: 20030107807Abstract: In an optical member, a surface of an optical material is bonded to and covered with a protective film having a outer surface roughness Ra of at least 0.03 &mgr;m, or in an optical member, an adhesive layer disposed on an uttermost surface of an optical material is provisionally bonded to and covered with a separator having a outer surface roughness Ra of at least 0.03 &mgr;m, hardly generates blocking and, even if the optical members are transported or stored in a stacked state and subjected to a process of automatically assembling liquid crystal display and the like, the optical members can be smoothly separated unit by unit from the stack, thereby avoiding stoppage of the assembling line caused by catching plural units, and enabling production of liquid crystal display and the like with a good assembling efficiency.Type: ApplicationFiled: December 6, 2001Publication date: June 12, 2003Inventors: Yuuji Saiki, Masayuki Satake, Yasushi Takahashi, Takashi Shouda
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Publication number: 20030107808Abstract: Disclosed is a polarization beam splitter and a method of producing the same, in which the polarization beam splitter has superior polarization separation efficiency and has small angle dependence. A transparent base material having a polarization separation film, comprising a dielectric multilayered film, is cemented at the cemented surface of the beam splitter, to provide an array-like plane type polarization beam splitter, wherein an incidence angle &thgr;g of light upon the polarization separation film is selected to satisfy a relation &thgr;g>45 deg.Type: ApplicationFiled: June 28, 2002Publication date: June 12, 2003Inventor: Mitsuhara Sawamura
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Publication number: 20030107809Abstract: Beamsplitters are frequently used in projectors based on reflective liquid crystal displays for separating input and output light, and more recently for color management systems. Retarder stack filters are used in such systems to orthogonally polarize primary colors, converting polarizing beamsplitters to color splitters and combiners. Geometric polarization rotations induced by beamsplitters at moderate f-numbers have the effect of significantly degrading performance. Because retarder stacks in general rely on a specific input polarization to perform properly, such skew rays are responsible for color cross-talk. Retarder stacks designed according to the present invention are sensitive to the symmetries that exit between input and output polarizer configurations. These stacks provide the polarization transformations that will compensate for skew rays, such that normal incidence performance is maintained for all incident light.Type: ApplicationFiled: November 30, 2001Publication date: June 12, 2003Inventors: Jianmin Chen, Michael G. Robinson, Jonathan R. Birge, Gary D. Sharp
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Publication number: 20030107810Abstract: An apparatus comprises a structure having first and second opposite reflective sides and adapted to be removably attached to clothing. A method for signaling the presence of a user comprises providing a structure having first and second opposite reflective sides being adapted to removably attach to clothing, removably attaching the structure to clothes worn by the user and reflecting light from the structure.Type: ApplicationFiled: December 10, 2001Publication date: June 12, 2003Inventor: Kenneth J. Greves
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Publication number: 20030107811Abstract: A multi cavity comb filter for interleaving or de-interleaving WDM signals has a plurality of stacked optical cavities each having substantially the same thickness. The multiple cavity arrangement provides a comb reflection response and a comb transmission response with broad peaks, so that the filter can be used for transmitting one group of channels and reflecting another group of channels at interleaved positions. The cavities are preferably formed from silicon wafers, so that existing techniques can be employed to obtain specific cavity thicknesses with sufficient accuracy and uniformity.Type: ApplicationFiled: December 7, 2001Publication date: June 12, 2003Inventor: Adrian P. Janssen
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Publication number: 20030107812Abstract: A transmission mechanism for an optical device is provided to change an angle of an optical element. The transmission mechanism includes a first member and a second member. The first member has a slanted surface and is capable of sliding back and forth along a first direction. The second member has a first part and a second part. The first part is contacted with the slanted surface of the first member. The second part has one end connected with the first part and the other end connected to the optical element. When the first member moves, the first part contacting the slant surface moves relative to the slanted surface, thereby causing the second part to rotate so as to change the angle of the optical element.Type: ApplicationFiled: May 1, 2002Publication date: June 12, 2003Inventor: Huang-Kun Chen
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Publication number: 20030107813Abstract: A light reflecting and light diffusing sheet material useful, inter alia, as a back-reflector for liquid crystal displays (LCDs), comprises a sheet of light diffusing material having a light reflecting coating or backing. In a preferred embodiment, the reflective backing comprises a light-reflecting sheet formed separately from the light-diffusing sheet and juxtaposed with a rear surface of the sheet.Type: ApplicationFiled: October 4, 2002Publication date: June 12, 2003Inventors: Robin J T Clabburn, Alison M Fairhusrt, David R D Tinson
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Publication number: 20030107814Abstract: A Shack-Hartmann aberrometer for measuring ophthalmic wavefront aberrations having improved dynamic range is described. In one embodiment, a single lenslet only of the wavefront sensor microlens array is optically or physically altered. In another embodiment, a sub-array of immediately adjacent lenslets are altered. In an alternative embodiment, preferably only two non-adjacent lenslets are altered. The alteration provides for identification of the correspondence between spot images of the unknown wavefront formed by the microlens array and the respective lenslets forming the spot images. Once all the spot images are correctly identified, analysis of the incoming wavefront is simplified even when the magnitude of aberration is increased. Thus, the dynamic range and accuracy of the Shack-Hartmann aberrometer are no longer limited by the dimensions and optical properties of the lenslets.Type: ApplicationFiled: December 11, 2001Publication date: June 12, 2003Inventor: Griffith E. Altmann
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Publication number: 20030107815Abstract: Micro lenses are fabricated using processes which operate on multiple lenses at a time. In one embodiment, wafer-scale processing includes employing photolithography for defining gray-scale masks which permit relatively smooth or continuous curvatures of lens surfaces to be formed by, e.g., reactive ion etching. Processes and materials are used which achieve desired etching at a sufficiently rapid rate such as etching to a depth of about 200 micrometers in less than about 10 hours. Wafer-scale molding processes can also be used. Diffractive features can be formed on or adjacent lens surfaces to provide functions such as dispersion correction. Also, sub-wavelength scale features may be etched to provide quarter-wave plate functionality, birefringence, anti-reflective functions and the like. Structures such as mounting rings and/or crash stops can be formed integrally with the lens body, eliminating the need to glue or otherwise couple separate components.Type: ApplicationFiled: October 22, 2002Publication date: June 12, 2003Applicant: DataPlay, Inc.Inventor: Ian R. Redmond
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Publication number: 20030107816Abstract: A display optical system for guiding light from an original picture to an eye of an observer or a surface to have an image projected thereon is provided with a first optical system and a second optical system. The first optical system is provided with a first surface that is formed on a transparent body and has at least a reflecting action, a second surface for reflecting light reflected on the first surface toward the first surface again, and a third surface that is formed on the transparent body in the same manner as the first surface and transmits the light from the original picture. The light transmitted through the third surface travels toward the first surface and reflected for the first time on the first surface. In addition, a principal ray at central angle of view to be reflected for the last time on the first surface is reflected and travels to a side opposite to a side of the first reflection on the first surface with respect to a normal line of a surface on a hit point thereof.Type: ApplicationFiled: November 12, 2002Publication date: June 12, 2003Inventors: Akinari Takagi, Shoichi Yamazaki, Hideki Morishima, Kazutaka Inoguchi, Motomi Matsunaga
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Publication number: 20030107817Abstract: An image projection apparatus and method includes a light separating unit that separates white light into monochromatic lights of different wavelengths, and then forms a plurality of monochromatic color stripes. A galvanometer receives the separated monochromatic lights and deflects the lights by a predetermined angle. The holographic optical element such as a hologram element can be used as the light separating unit, obtaining an advantageous reduction in light loss. Further, when the separated RGB monochromatic lights are scanned on the DMD panel by the use of galvanometer, only one color stripe is projected to be incident on the DMD panel in the initial scanning, thereby increasing light utilization efficiency. As a result, the quantity of light increases, the light efficiency improves, and the brightness of the realized image is enhanced.Type: ApplicationFiled: October 30, 2002Publication date: June 12, 2003Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Sang-Whoe Dho
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Publication number: 20030107818Abstract: In order to provide an optical element having an optical thin film free of cracking or peeling, with excellent durability, the optical thin film is constructed of a layer containing a fluoride of lanthanoid.Type: ApplicationFiled: November 1, 2002Publication date: June 12, 2003Inventors: Eri Fukumoto, Tomonori Aoki
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Publication number: 20030107819Abstract: A 3D shape-measuring apparatus using biaxial anamorphic magnification comprises a light source that projects a light onto an object surface to be sensed. Via an electrical image-grabbing device, such as CCD camera, the light reflected from the object is grabbed to determine the coordinate locations sensed on the object. Before the electrical image-grabbing device, the light reflected from the object passes respectively through a curved reflecting mirror or an assembly of telecentric cylindrical lenses to adjust an image magnification along the light projection direction, and an assembly of cylindrical lenses to adjust an image magnification along a direction perpendicular to the light projection direction. Thereby, resolution nonuniformity with respect to near and far distance is resolved while the observable range of the CCD camera can further be efficiently changed into a measurable field.Type: ApplicationFiled: April 22, 2002Publication date: June 12, 2003Applicant: Industrial Technology Research InstituteInventors: Ming-Hui Lin, Tung-Fa Liou
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Publication number: 20030107820Abstract: A zoom lens which suppresses variations of an exit pupil and is telecentric on the image side in the whole range of zooming is to be disclosed.Type: ApplicationFiled: August 1, 2002Publication date: June 12, 2003Inventor: Norihiro Nanba
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Publication number: 20030107821Abstract: A rotational state detecting device including operation rings provided so as to be rotatable about a first axis, the operation rings each being rotated by external operation; support shafts each provided so as to be rotatable about a second axis different from the first axis; disk-shaped scales each supported by a respective one of the support shafts; sensors each detecting the rotation of a respective one of the scales; and rotation transmitting mechanisms for respectively transmitting the rotation of each of the operation rings to a respective one of the support shafts.Type: ApplicationFiled: November 25, 2002Publication date: June 12, 2003Applicant: Canon Kabushiki KaishaInventor: Hidekazu Nakamura
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Publication number: 20030107822Abstract: An image pickup lens includes a lens body 1 which meets the following conditions:Type: ApplicationFiled: November 8, 2002Publication date: June 12, 2003Applicant: Enplas CorporationInventor: Tomohiro Saito
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Publication number: 20030107823Abstract: An imaging optical system includes, in order from the object side, a negative lens, a first deformable mirror, an aperture stop, a positive lens unit, and a second deformable mirror. When a horizontal half angle of view of a ray of light incident on the optical system is represented by &ohgr;, the first and second deformable mirrors satisfying a condition, 50°<2&ohgr;<175°, are used to perform focusing. Whereby, the imaging optical system which allows focusing to be performed, irrespective of its small diameter and size, can be provided.Type: ApplicationFiled: September 25, 2002Publication date: June 12, 2003Inventors: Kentaro Sekiyama, Mitsujiro Konno
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Publication number: 20030107824Abstract: A cemented objective lens includes a first lens made of photo-curing resin or thermo-curing resin, and a second lens made of resin to which the first lens is cemented. The cemented objective lens may be manufactured in accordance with the method including the following four steps, a step for forming the second lens made of resin, a step for setting the second lens in a molding device to form a cavity corresponding to the shape of the first lens, a step for charging photo-curing resin or thermo-curing resin into the cavity and a step for curing the photo-curing resin or thermo-curing resin by applying light or heat.Type: ApplicationFiled: December 3, 2002Publication date: June 12, 2003Applicant: PENTAX CorporationInventor: Shuichi Takeuchi
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Publication number: 20030107825Abstract: An image-detecting device including: a body housing a sensor; a first supporting element, rigidly coupled with the body and defining a seat; and an objective including at least one optical unit having an optical axis. The seat forms a guide portion engaging directly and slidably an alignment portion formed by said optical unit to keep the optical axis orthogonal to the sensor.Type: ApplicationFiled: June 13, 2002Publication date: June 12, 2003Applicants: STMicroelectronics S.r.I., STMicroelectronics LimitedInventors: Pierangelo Magni, Francesco Sala, Eric Christison, Andrea Giovanni Cigada