Olympus Corporation

Fujitsu Corporation

Sony Corporation

Nec Corporation

Renesas Electronics Corporation

Olmypus Corporation

Kenichiro Abe

Yoshihiro Uchida

Keisuke Ichikawa

Kenji Iida

Takashi Shuto

Kenji Takano

Takahiro Amanai

Kiyotaka Seyama

Keiji Arai

Takuya Otsu

Hitoshi Suzuki

Nobuyuki Hayashi

Tomoyuki Abe

Motoaki Tani

Takashi Kasahara

Shuichi Oka

Hirokazu Konishi

Takashi Fujikura

Atsushi Yonetani

Shinji Rokuhara

Hiromitsu Yokoyama

Yorinobu Kunimune

Nozomi Ito

Kei Fukui

Akiyoshi Saitou

Kazuhiko Iijima

Kazuya Arai

Koji Komemura

Yasuo Yonemaru

Nobuhide Okada

Nobuhito Shiraishi

Chikayuki Kumagai

Yuso Fujita

Kenji Ilda

Takefumi Kashiwa

Kouzi Soekawa

Yoshinobu Maeno

Syouichi Hattori

Koji Soekawa

Katsuto Takeuchi

Takeshi Midorikawa

Masahiro Sakakura

Toru Kuraishi

Masashi Fujimoto

A resistor material including a plurality of crystalline phases having a positive temperature coefficient of resistance, and an amorphous phase having a negative temperature coefficient of resistance and having a resistivity higher than the crystalline phase, in a mixed state, is provided. Moreover, a resistor element having a resistor film configured by the resistor material described above, and a method of manufacturing a resistor element by forming a film of an amorphous material having a negative temperature coefficient of resistance and subjecting this film to an annealing treatment to obtain the resistor element described above, are provided.

Resistor material, resistor element and method of manufacturing the resistor element

A microscope objective includes: a first lens group that has a positive refractive power and includes a first cemented lens; and a second lens group, the first lens group and the second lens group having concave surfaces adjacent to and facing each other. The second lens group includes: at least one lens component that has a negative refractive power overall; a second cemented lens; and a single lens having a positive refractive power. An axial marginal light ray height is maximized at the lens surface of the microscope objective that is the closest to an image. The microscope objective satisfies the following conditional expression:&#x2212;0.38&#x2264;&#x2264;0.38&#x2003;&#x2003;(1)

Microscope objective

An imaging optical system includes an objective, an image-formation optical system, and an image sensor, wherein an object, the objective, the image-formation optical system, and the image sensor are arranged in this order, the objective includes: a first lens group that includes a meniscus lens component that is the closest to an image among the first lens group, the meniscus lens component having a convex surface facing the object; and a second lens group that is closer to the image than the first lens group is, and the imaging optical system satisfies the following conditional expression:4&#xd7;10&#x2264;1&#xd7;10&#x2003;&#x2003;(1)

Imaging optical system and microscope system

An objective includes: a first lens group that includes a meniscus lens component that is the closest to an image among lens components of the first lens group, the meniscus lens component having a convex surface facing an object; and a second lens group that is closer to the image than the first lens group is, and the objective satisfies the following conditional expressions:0&#x2264;|&#x394;|/DOF&#x2264;1.5&#x2003;&#x2003;(1)0&#x2264;|&#x394;|/DOF&#x2264;2&#x2003;&#x2003;(2)

Objective for a confocal microscope

A dry objective including the first lens group having a positive refractive power that converts a divergent pencil of light from an object point into a convergent pencil of light and the second lens group having a negative refractive power. The objective includes a moving lens component that moves along an optical axis and satisfies the following conditional expressions of:0.85&#x2264;NA&#x3c;1.0&#x2003;&#x2003;(1); and9 mm&#x2264;&#xd7;|&#x3b2;|&#x2264;20 mm&#x2003;&#x2003;(3),where NAis a numerical aperture, Yis a maximum object height in a region in which a value obtained by dividing RMS wavefront aberration at the e-line by a wavelength of the e-line is 0.2 or smaller, the region being on a plane that is orthogonal to the optical axis and intersects with an on-axis position at which the RMS wavefront aberration at the e-line is minimized, and &#x3b2; is a magnification of the objective.

Dry objective

An objective includes a first lens group that has a positive refractive power and a second lens group that has a negative refractive power. The objective includes a first negative lens and satisfies0.005&#x2264;&#x2264;0.1&#x2003;&#x2003;(1)0.005&#x2264;&#x2264;0.72&#x2003;&#x2003;(2)10 mm&#x2264;&#x2264;100 mm&#x2003;&#x2003;(3)0.1&#x2264;&#x2264;31&#x2003;&#x2003;(4)when dis a thickness of the first negative lens, his an axial marginal ray height on a lens surface on the object side of the first negative lens, his a minimum value of an axial marginal ray height in the second lens group, his a height of an axial marginal ray on a lens surface of the objective that is situated closest to the image side, L is a length of the objective, and f is a focal length of the objective.

Objective

An immersion objective includes a first lens group, with a positive refractive power, that converts divergent light from an object point into convergent light and a second lens group, with a negative refractive power, that is arranged closer to the image than is the first lens group. The immersion objective satisfies the conditional expression below where WD is a working distance of the immersion objective and D is a distance on an optical axis of the immersion objective from the observation target plane to the lens surface closest to the image in the immersion objective.0.11&#x2264;WD/&#x2264;0.7

Immersion objective

A variable magnification optical system is an optical system in which, a magnification ratio varies from a lower magnification end to a high magnification end, and includes at least a first lens unit having a positive refractive power, which is disposed nearest to an object, and a second lens unit having a positive refractive power, which is disposed on an image side of the first lens unit. At the time of varying magnification, a distance between the first lens unit and the second lens unit changes, and the following conditional expression (1) is satisfied:0&#x3c;1/&#x3b2;&#x3c;1&#x2003;&#x2003;(1),

Variable magnification optical system, and image pickup apparatus and image pickup optical system using the same

An image pickup apparatus includes an image pickup element and an optical system. The image pickup element includes a plurality of pixels, and the plurality of pixels is arranged in rows two-dimensionally. The optical system includes in order from an object side, a first lens unit which includes a plurality of lenses, a stop, and a second lens unit which includes a plurality of lenses. The first lens unit includes a first object-side lens which is disposed nearest to an object, and the second lens unit includes a second image-side lens which is disposed nearest to an image. The following conditional expressions (1), (2), (3), (4), and (5) are satisfied:3250&#x3c;2&#x2003;&#x2003;(1),&#x2212;1.0&#x3c;&#x3b2;&#x2003;&#x2003;(2),&#x3c;10 deg&#x2003;&#x2003;(3),2.0&#x3c;/&#x221a;()&#x3c;15.0&#x2003;&#x2003;(4), and0.5&#x3c;&#x3c;0.95&#x2003;&#x2003;(5).

Image pickup apparatus and image pickup system

A wiring substrate includes a laminated sheet including a first conductor pattern, an inorganic dielectric layer, and a second conductor pattern. The first conductor pattern, the inorganic dielectric layer, and the second conductor pattern are laminated in this order. Also, the first conductor pattern is divided into a plurality of regions.

Wiring substrate and manufacturing method of wiring substrate

An optical system which forms an optical image on an image pickup element, comprising in order from an object side,

Optical system and optical instrument, image pickup apparatus, and image pickup system using the same

A microscope optical system includes a first lens group having a positive power, a second lens group, and a third lens group including a positive lens. The first lens group includes: a first lens component arranged closest to an object, the first lens component including a first meniscus lens that has a meniscus shape with a concave surface facing the object side; a second lens component having a positive power that has a meniscus lens shape with the concave surface facing the object side; and a cemented lens including a positive lens and a negative lens that is made of a higher-dispersion material than a material of the positive lens. When NA, &#x3b2;, D, Drepresent a numerical aperture of the microscope optical system, a lateral magnification of the third lens group, a spacing between the third lens group and an image plane, a spacing between the second lens group and the third lens group, the microscope optical system satisfies the following conditional expressions:0.25&#x3c;NA&#x2264;1.51 &#x2003;&#x2003;(1);0.2&#x3c;&#x3b2;&#x3c;3 &#x2003;&#x2003;(2);0.1&#x3c;&#x3c;2.5 &#x2003;&#x2003;(3).

Microscope optical system

An objective for a microscope includes, in order from an object side, a first lens group with positive refractive power, a second lens group with positive refractive power, and a third lens group with negative refractive power. When NA represents a numerical aperture of the objective, FN represents a field number of the objective, &#x3b2; represents a magnification of the objective, &#x3b5; represents an Airy disk diameter on an axis to a d-line of the objective, &#x3c6;represents a maximum value of an effective diameter of a lens included in the objective, and hrepresents a radius of an exit pupil of the objective, the objective satisfies the following conditional expressions:0.8&#x2266;NA&#x2266;1.5&#x2003;&#x2003;(1)1000&#x2266;FN/|&#x3b2;|/&#x3b5;&#x2266;10000&#x2003;&#x2003;(2)1.7&#x2266;&#x3c6;/2//NA&#x2266;4&#x2003;&#x2003;(3).

Objective for microscope

A zoom lens includes in order from an object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, a third lens group having a negative refractive power, and a fourth lens group having a positive refractive power, and at the time of zooming, the first lens group is fixed, the second lens group moves, the third lens group moves, and the fourth lens group is fixed. The first lens group includes in order from the object side, a negative lens, a reflecting optical element, and a positive lens. The second lens group includes in order from the object side, an aperture stop, a positive lens, a cemented lens having a negative refractive power, and a positive lens. The cemented lens includes a positive lens and a negative lens.

Zoom lens, image pickup apparatus using the same, and information processing apparatus

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Tokyo, Japan

Kenichiro Abe