Canon Kabushiki Kaisha

Ohtsuka Patent Office

Canon Kabushiki Xaisha

Yoshihiro Uchino

Nobuhiro Takeda

Kenichi Kimura

Toshikazu Yanai

Shigeo Ogura

Toshiya Kurihashi

Takeshi Akiyama

Tsunefumi Tanaka

Norihiro Nanba

Makoto Sekita

Hiroshi Saruwatari

Keisuke Araki

Hitoshi Nabetani

Hiroyuki Ogino

A reflecting-type optical system according to the invention includes an optical element composed of a transparent body having an entrance surface, an exit surface and at least three curved reflecting surfaces of internal reflection. A light beam coming from an object and entering at the entrance surface is reflected from at least one of the reflecting surfaces to form a primary image within the optical element and is, then, made to exit from the exit surface through the remaining reflecting surfaces to form an object image on a predetermined plane. In the optical system, 70% or more of the length of a reference axis in the optical element lies in one plane.

Reflecting type optical system

An information processing apparatus which employs a card-shaped storage medium includes guide portions having a plurality of temporarily fastening portions for temporarily fastening the card-shaped storage medium at their respective locations, one of which is a first location at which the card-shaped storage medium is electrically connected to the apparatus and another of which is a second location at which the card-shaped storage medium is not electrically connected to the information processing apparatus.

Card-shaped storage medium and information processing apparatus having guide portion for the same

A reflecting type of zoom optical system comprises a plurality of optical elements each of which includes a transparent body and two refracting surfaces and a plurality of reflecting surfaces formed on the transparent body and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection by the plurality of reflecting surfaces, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from surface reflecting mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element. In the reflecting type of zoom optical system, an image of an object is formed via the plurality of optical elements and zooming is performed by causing at least two optical elements from among the plurality of optical elements to vary their relative positions.

Reflecting type of zoom lens

There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board ( ) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions ( ) are formed in the board ( ). The opening portion ( ) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board ( ) and a shield case ( ). The photographing optical system mounted on the board ( ) includes a stop unit ( ) for adjusting the light amount of an object image guided through the opening portion ( ), and prism-like optical members (G G G G ), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface. Light emerging from the optical member (G ) is received by a solid-state image sensing element ( ) mounted on the lower surface of the board ( ) through the opening portion ( ).

Optical apparatus and image sensing apparatus mounted on the same surface of a board

There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board ( ) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions ( ) are formed in the board ( ). The opening portion ( ) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board ( ) and a shield case ( ). The photographing optical system mounted on the board ( ) includes a stop unit ( ) for adjusting the light amount of an object image guided through the opening portion ( ), and prism-like optical members (G , G , G , G ), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface. Light emerging from the optical member (G ) is received by a solid-state image sensing element ( ) mounted on the lower surface of the board ( ) through the opening portion ( ). The board may be made up of a plurality of base members which are comprised of different materials joined together.

Optical apparatus for forming an object image on a sensing element

A zoom lens comprises a plurality of optical elements each of which includes a transparent body having two refracting surfaces and a plurality of reflecting surfaces and is arranged so that a light beam enters the transparent body from one of the two refracting surfaces, repeatedly undergoes reflection, and exits from the other of the two refracting surfaces, and/or a plurality of optical elements on each of which a plurality of reflecting surfaces made from front surface mirrors are integrally formed, and each of which is arranged so that an entering light beam repeatedly undergoes reflection by the plurality of reflecting surfaces and exits from the optical element. In the zoom lens, the optical element which the light beam from an object enters first has an entrance pupil positioned on an object side of a first reflecting surface, and an image of the object is formed via the plurality of optical elements and zooming is performed by causing at least two optical elements from among the plurality of optical elements to vary their relative positions.

A reflecting-type optical system according to the invention includes an optical element composed of a transparent body having an entrance surface, an exit surface and at least three curved reflecting surfaces of internal reflection. A light beam coming from an object and entering at the entrance surface is reflected from at least one of the reflecting surfaces to form a primary image within the optical element and is, then, made to exit from the exit surface through the remaining reflecting surfaces to form an object image on a predetermined plane, In the optical system, 70% or more of the length of a reference axis in the optical element lies in one plane.

An information processing apparatus includes a holding mechanism for detachably holding a card-shaped adapter and a receiving portion for receiving information stored in a smaller storage medium through the adapter, wherein the holding mechanism is arranged so as to expose an ejecting member when the adapter is received by the holding mechanism. The adapter includes a connecting portion in which the smaller storage medium is detachably located and has a shape similar to a larger storage medium which the holding mechanism is also able to detachably hold. The adapter further includes the ejecting member to be manually operated for releasing the smaller storage medium from the adapter.

Information processing apparatus and a card-shaped adapter for smaller

There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board (1) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions (1a, 1b, 1c) are formed in the board (1). The opening portion (1a) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board (1) and a shield case (49). The photographing optical system mounted on the board (1) includes a stop unit (30) for adjusting the light amount of an object image guided through the opening portion (1a), and prism-like optical members (G1, G2, G3, G4), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface. Light emerging from the optical member (G4) is received by a solid-state image sensing element (2) mounted on the lower surface of the board (1) through the opening portion (1c).

Growing community of inventors

Fukuoka-ken, Japan

Yoshihiro Uchino