Stanley Electric Co., Ltd

Nalux Co., Ltd.

Hiroaki Kurosu

Hidetaka Okada

Norihisa Sakagami

Kayuri Kinoshita

Kouei Hatade

Takumi Tanokura

A lens holding structure, comprising a first holding member, a first lens disposed ahead of the first holding member, a second lens disposed ahead of the first lens, a second holding member disposed ahead of the second lens, and a fixing unit that fixes the first holding member and the second holding member in a state of holding the first lens and the second lens between the first holding member and the second holding member, wherein the first lens and the second lens are held between the first holding member and the second holding member in a state of the optical surface of the second lens being surface-contacted with the optical surface of the first lens.

Lens holding structure and vehicular lamp fitting

The projector-type headlamp comprises a projection lens unit and a light source unit. A diffraction grating designed to eliminate chromatic aberrations is provided on at least part of a lens surface of the lens unit. When an x axis in the horizontal direction and a y axis in the vertical direction are defined on a plane perpendicular to the optical axis, Ris the maximum y coordinate on the lens surface, and 0&#x2264;A&#x3c;1, an area of the lens surface in which y&#x3c;A&#xb7;Rcomprises a curved surface or a flat surface, at least partially provided with the diffraction grating, and an area of the lens surface in which y&#x2265;A&#xb7;Rcomprises a separate curved surface that has a power greater than the power of the curved surface or flat surface, and is not provided with a diffraction grating.

Projector type headlamp

Growing community of inventors

Tokyo, Japan

Hiroaki Kurosu