Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Yukio Hibino

Kazuo Momoo

Kyoichi Miyazaki

Kenji Nakayama

Yuichi Takahashi

Koichi Muramatsu

Akito Sawada

Fumitake Sakai

The combiner has a reflecting surface that reflects incident light. When the incident light has an incident angle in a range from 0&#xb0; to 25&#xb0;, inclusive, defined as a first value, in a wavelength range from 400 nm to 700 nm, inclusive, the upper limit wavelength of a wavelength range having a reflectance of 90% or more of the reflectance peak of the incident light is shorter than 700 nm. When the incident angle takes a second value in a range from 60&#xb0; to 85&#xb0;, inclusive, in the wavelength range from 400 nm to 700 nm, inclusive, the reflectance peak of an S-wave component contained in the incident light has a wavelength shorter than 570 nm.

Combiner and head-up display device using same

A reflective display device includes a substrate that has a side surface and that is formed by injection-molding, and a vapor-deposited film formed on a first surface of the substrate. Two corner portions on one side of the substrate each have a curved portion, and two corner portions on another side opposite to the one side of the substrate each have a bent edge portion. The substrate includes a level difference portion where a second surface side portion is formed recessed with respect to a first surface side portion with a parting line as a boundary, where the parting line is positioned in such a proportion that the first surface side portion becomes greater than the second surface side portion on an opposite side of the first surface side portion with respect to a width dimension of the side surface of the substrate.

Reflective display device, injection mold, and method for manufacturing reflective display device

A plastic lens, comprising: a first edge section having a first outer circumferential edge surface formed substantially parallel to an optical axis of the plastic lens; and a second edge section having a second outer circumferential edge surface formed so as to have a step with respect to the first outer circumferential edge surface, wherein the first outer circumferential edge surface is not coated with a black coating material that suppresses internal reflection of light, and at least a portion of the second outer circumferential edge surface is coated with the black coating material that suppresses internal reflection of light.

Plastic lens and lens barrel

An optical pickup device according to the present invention comprises: a first mirror for reflecting a first light beam outputted from a first light source and letting a second light beam outputted from a second light source pass therethrough; a first object lens for converging the first light beam reflected by the first mirror on an information recording surface of a recording medium; a second mirror for reflecting the second light beam passing through the first mirror; a second object lens for converging the second light beam reflected by the second mirror on the information recording surface of the recording medium; and an achromatic lens for correcting an axial chromatic aberration of the second object lens generated by wavelength variation of the second light beam, wherein the achromatic lens is provided in an optical path between the first mirror and the second mirror.

Growing community of inventors

Osaka, Japan

Yukio Hibino