Konica Minolta Opto, Inc.

Koninklijke Philips Corporation N.v.

Corning Incorporated

Konica Minolta, Inc.

Konica-minolta Holdings, Inc.

Katsuya Yagi

Yuichi Atarashi

Hideyuki Fujii

Tatsuji Kurogama

Katsumi Fujiwara

Nobuyoshi Mori

Jacques Gollier

Bernardus Hendrikus Wilhelmus Hendriks

Tohru Kimura

Kenji Konno

Motohiro Asano

Jun Takayama

Takuji Hatano

Kiyono Ikenaka

Johannes Joseph Hubertina Barbara Schleipen

Yuichiro Ori

Fumio Nagai

Hiroshi Hatano

Shoji Kogo

Makoto Jin

Marco Andreas Jacobus Van As

David A Loeber

E Alan Dowdell

A compound eye optical system forms a plurality of images with different fields of view for connecting the plurality of images with the different fields of view and outputting one composite image. The system includes: a plurality of individual eye optical systems forming the plurality of images with different fields of view on an imaging surface; and an overall optical system forming an image with a field of view incorporating the entire fields of view obtained by the plurality of individual eye optical systems on the imaging surface, wherein the individual eye optical systems and the overall optical system are configured by a lens array plate having a plurality of lenses integrally formed.

Compound eye optical system and imaging device using the same

A method for assembling an optical pickup apparatus for recording/reproducing a high density DVD, DVD and CD including two objective lens and three laser light sources, the objective lenses being provided on the lens holder having an actuator base for supporting the actuator, the method for assembling the optical pickup apparatus comprises the steps of adjusting a first tilt angle of the actuator base so that a coma aberration of a spot formed by the first light beams decreases when the first light beams are converged onto the first recording medium via the first objective lens, and adjusting a second tilt angle formed between the second objective lens and the lens holder so that a coma aberration of a beam spot formed by the second light beams decreases when the second light beams are converged onto the second recording medium via the second objective lens.

Assembly method of optical pickup and optical pickup apparatus

An optical pickup apparatus for recording and/or reproducing information onto/or from information recording surface, the optical pickup apparatus comprises a laser light source, an objective lens for converging light beams from the laser light source onto the information recording surface through a protective layer of an optical information recording medium, an optical device for changing a divergence angle of incident light beams by moving in an optical axis direction, the optical device being arranged between the laser light source and the objective lens, a light receiving device for receiving light beams reflected by the information recording surface and passed through the objective lens, and a driving device capable of moving the optical device in a direction crossing the optical axis.

Optical pickup apparatus

An optical pickup apparatus has a semiconductor laser source which emits a laser beam in a wavelength band of 405 nm having an elliptic light intensity distribution; a beam shaping element which shapes the light intensity distribution of the laser beam; a polarizing beam splitter having a polarized light separation film in contact with the air and reflecting the laser beam shaped by the beam shaping element on the polarized light separation film; and an objective lens which focuses the laser beam reflected on the polarized light separation film onto an optical information recording medium.

The present invention provides a semiconductor light source module including: a semiconductor light source for emitting a light flux with a predefined wavelength; a SHG element for converting an incident light flux entering onto an incident end surface of the SHG element into an outgoing light flux having a different wavelength from the incident light flux; a light converging optical system for converging a light flux emitted from the semiconductor light source onto the incident end surface of the SHG element; a light receiving element for receiving a part of a light flux emitted from the SHG element; and a drive device for driving an optical element in the light converging optical system based on a light flux received by the light receiving element.

Semiconductor light source module

An optical scanning device () for scanning an information layer () of an optical record carrier (), the device () comprising a radiation source () for generating a radiation beam () and an objective system () for converging the radiation beam on the information layer, the information layer being covered by a transparent layer () of thickness td and refractive index nd. The objective system comprises a lens having a protection device projecting away from the lens towards the optical record carrier such that the distance between the protection device and the optical record carrier is less than the free working distance. The lens satisfies the condition: where D is the entrance pupil diameter, FWD is the free working distance, and D, FWD, t and td are all expressed in millimeters and where FWD+td/nd&#x3c;0.51.

Scanning device including an objective system with a lens protection device

An optical pickup apparatus includes first, second and third light sources; a light converging optical system including a first objective optical element and a second objective optical element, wherein the first objective optical element converges the light flux emitted from the first light source on a first information recording surface, the second objective optical element converges the light flux emitted from the third light source on a third information recording surface, and the first objective optical element or the second objective optical element converges the light flux emitted from the second light source on a second information recording surface; a lens holder holding the first objective optical element and the second objective element therein; and a chromatic aberration correcting element which corrects a chromatic aberration caused by a wavelength variation in a light flux emitted by the first light source.

Optical pickup device and objective lens for the optical pickup device

Growing community of inventors

Hino, Japan

Katsuya Yagi