Canon Kabushiki Kaisha

Other

Yoichi Osato

Junichiro Kanbe

Keishi Saitoh

Shigeru Shirai

Kyosuke Ogawa

Teruo Misumi

Eiichi Fujii

Ichiro Saito

Hisaaki Kawade

Tadashi Kobayashi

Nobuhiro Kasama

Yoshio Takasu

Kozo Arao

Hiroyuki Kitayama

Kazunori Ueno

Toshinori Hasegawa

Shinichi Tachibana

Katsumi Miyata

Akihito Saitoh

Akihiro Senoo

Yuichi Hashimoto

Hiroshi Takagi

Hiroshi Tanabe

Takao Kusaka

Jian Chen

Seiji Mashimo

Katsuhiko Takano

Noriaki Ohguri

Yoshimasa Okamura

Kazuo Kuroda

Hiroshi Omata

Shigeharu Iijima

Shinichi Urakawa

Eizou Sasamori

An object of the present invention is to maintain sufficient light extraction from an organic light emitting device and reduce reflection of external light. There are arranged a polarizing member, a prism member, a phase member, and an organic light emitting element which has an organic light emitting layer arranged between a pair of electrodes, in mentioned order from the side of a light extraction surface. When the prism member includes two sheets, the vertex angle of the prism member sheet arranged on the side of the organic light emitting element is preferably a vertex or less of the prism member arranged on the side of the light extraction surface. Furthermore, the prism members are preferably arranged so that pitch directions thereof are orthogonal to each other.

Organic light emitting device with prism

There is provided an organic light-emitting apparatus in which the luminance can be improved, and, at the same time, the reflection of ambient light can be reduced by adding a prism member and a light-absorbing member to a spontaneous light-emitting device such as an organic light-emitting device, and which includes: a plurality of organic light-emitting devices each having a pair of electrodes and an organic compound layer formed between the pair of electrodes; a prism member disposed on a light extraction side of the organic light-emitting device, an interface on the light extraction side of the prism member being an interface with air; and a light-absorbing member formed between the plurality of organic light-emitting devices, around the prism member, and on a side portion of a protrusion of the prism member.

Organic light-emitting apparatus

An organic EL light-emitting apparatus includes a base, an organic EL device, a prism member, a polarizing member, and a phase member. The prism member, the polarizing member, and the phase member are adjacent to a light extraction side of the organic EL device. The prism member includes a plurality of unit prisms each having a triangular-column shape. The unit prisms are arranged such that their longitudinal directions are parallel to one another. The polarizing member is disposed further from the base than the prism member. The prism member has an apex angle between 90&#xb0; to 140&#xb0;.

Organic electroluminescent device provided with a polarizing plate, a prism member and a phase member in a stacked arrangement

The present invention provides an light-emitting element in which an organic compound layer containing a carbonate, for example CsCOand LiCO, as a dopant is in substantially electrical contact with a cathode by providing an organic compound layer having a dopant easy in handling so as to bring the organic compound layer into contact with the cathode. The light-emitting element includes a pair of electrodes sandwiching the organic compound layer, which is a co-evaporation layer of an organic compound and the carbonate.

Light-emitting element, production method thereof, and light-emitting apparatus

In an organic luminescence device formed of one or plural layers of organic films between an anode and a cathode, at least one layer is any one of a luminescence layer, an electron injection layer and an electron-transporting layer and is formed of at least a phenolic derivative of any one of formulas (1-a), (1-b), (2-a) and (2-b) characterized by having at least two phenoxide portions connected to each other via a specific divalent bond in its molecular structure. By the use of the phenolic derivative, the resultant organic luminescence device produces a high-luminance fluorescent luminescence at a low voltage for a long period of time.

Organic luminescence device

An organic luminescent element includes a substrate, an anode, a cathode, at least one organic material layer interposed between the anode and the cathode, and a sealing film containing a ferroelectric material provided on the anode or the cathode on the organic material layer. Preferably, the organic luminescent element further includes a counter electrode provided on the sealing film. Preferably, the substrate is transparent, and the anode is composed of indium tin oxide.

Organic luminescent element

A charge-reducing film is used for coating a surface within a vacuum container containing electron-emitting devices to prevent deviations of electron beams caused by electric charges of the furface. The charge-reducing film comprises a nitrogen compound containing one or more than one transition metals and at least one element selected from aluminum, silicon and boron. An oxide layer may be arranged on the charge-reducing layer.

Charge-reducing film, image forming apparatus including said film and method of manufacturing said image forming apparatus

A magnetooptical recording medium provided with a first magnetic layer and a second magnetic layer having a higher Curie point and a lower coercive force than the first magnetic layer and being exchange coupled with the first magnetic layer satisfies the relation: ##EQU1## wherein H.sub.H is the coercive force of the first magnetic layer; H.sub.L is the coercive force of the second magnetic layer; M.sub.s is the saturation magnetization of the second magnetic layer; h is the thickness thereof; and .sigma..sub.w is the magnetic wall energy between the first and second magnetic layers.

Magnetooptical recording medium allowing overwriting with two or more

A magnetooptical recording method for overwriting information on a magnetooptical recording medium, which has a first magnetic layer and a second magnetic layer having a larger coercive force and a lower Curie temperature than those of the first magnetic layer, comprises an initialization step of initializing magnetization of the first magnetic layer in one direction, a first recording step of radiating a light beam by repeating radiation and non-radiation states of the laser beam, while applying a bias magnetic field after the initialization step, a second recording step of continuously radiating a light beam while applying a bias magnetic field in a direction opposite to the one direction after the initialization step, and a step of selecting one of the first and second recording steps in accordance with recording information.

Magnetooptical recording method for overwriting information on a

This specification discloses a magneto-optical recording medium in which on the opposite side of a second magnetic layer having a relatively low curie temperature and a relatively great coercive force, there are laminated a first magnetic layer and a third magnetic layer each having a relatively high curie temperature and a relatively small coercive force as compared with the second magnetic layer, the second magnetic layer has its curie temperature varying in the direction of film thickness thereof and has a curie temperature T.sub.L1 near the interface thereof with the first magnetic layer and has a curie temperature T.sub.L3 near the interface thereof with the third magnetic layer, and T.sub.L1 .noteq.T.sub.L3, and the first magnetic layer, the second magnetic layer and the third magnetic layer are coupled together at room temperature by the exchange interaction therebetween and a state in which the direction of magnetization of the first magnetic layer and the direction of magnetization of the third magnetic layer are anti-parallel to each other is a stable state. The specification also discloses a magneto-optical recording method using such magneto-optical recording medium.

Magneto-optical recording medium and a method using the same

A magnetooptical recording medium has first and second magnetic layers laminated in that order on a transparent substrate on which a received laser beam is incident. The coercive force of the second magnetic layer is greater than that of the first magnetic layer and is greater than .sigma..sub.w /2M.sub.s2 h.sub.2, where .sigma..sub.w is the magnetic wall energy between the first and second magnetic layers, M.sub.s2 is the saturation magnetization of the second magnetic layer, and h.sub.2 is the film thickness of the second magnetic layer. The coercive force of the first magnetic layer is greater that .sigma..sub.w /2M.sub.s1 h.sub.1, where M.sub.s1 is the saturation magnetization of the first magnetic layer and h.sub.1 is the film thickness of the first magnetic layer. The compensation temperature of the first magnetic layer is smaller than the Curie temperature of the first magnetic layer. Recording is performed by selectively applying a laser spot, having either a high power or a low power.

Magnetooptical recording medium having magnetic layers that satisfy

A magnetic recording medium with a superior magnetic properties and a high anticorrosive resistance comprises a substrate and a magnetic recording layer formed on the substrate. The magnetic recording layer is composed of first thin films comprising a rare earth-transition metal magnetic alloy and second thin films comprising a non-magnetic material composed of either one of a metal, a semiconductive material or a dielectric material, laminated in at least two sets. Total thickness of a set of the first and second films is within a range from 15 to 100 .ANG.. A method for preparing the magnetic recording medium comprises a first step for forming a thin film from a rare earth-transition metal magnetic alloy on the substrate and a second step for forming a thin film from a non-magnetic material composed of a metal, a semiconductive material or a dielectric material on the substrate, wherein the first and second steps are alternately repeated at least two cycles while rotating the substrate.

Magnetic recording medium with a recording layer composed of laminate

A magneto-optical recording medium capable of overwriting by light modulation comprises a substrate, a first magnetic layer having a curie point T.sub.1 and a coercive force H.sub.1, a second magnetic layer having a curie point T.sub.2 and a coercive force H.sub.2, and a third magnetic layer having a curie point T.sub.3 and a coercive force H.sub.3. The first, second and third magnetic layers are successively laminated on the substrate. The first magnetic layer, the second magnetic layer and the third magnetic layer each are vertically magnetized film composed chiefly of an amorphous alloy of rare earth elements and transition metal elements, and satisfy the following conditions:

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Yokohama, Japan

Yoichi Osato