OPTICAL ELEMENT AND LIGHT SOURCE UNIT

Title:

OPTICAL ELEMENT AND LIGHT SOURCE UNIT

Document Type and Number:

Japanese Patent JP2009175239

Kind Code:

A

Abstract:

To provide an optical element and a light source unit, having favorable color reproducibility and preventing the occurrence of color irregularity.

Columnar projections 4 are arranged in a first direction (X-axis direction) and in a second direction (Y-axis direction) intersecting each other like a square grid on a substrate 2, the columnar projections 4 are arranged at spaces d1 corresponding to the wavelength of a first light beam Lr entering in the first direction in the first direction, the columnar projections 4 are arranged at spaces d2 corresponding to the wavelength of a second light beam Lg entering from the second direction in the second direction, and the space d3 of columns L3 of the columnar projections 4 arranged in the third direction intersecting both the first direction and the second direction corresponds to the wavelength of a third light beam Lb entering from the direction orthogonal to the third direction.

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Inventors:

KOMIYAMA SHINGO

Application Number:

JP2008011465A

Publication Date:

August 06, 2009

Filing Date:

January 22, 2008

Export Citation:

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Assignee:

SEIKO EPSON CORP

International Classes:

G02B1/02; G02B6/00; G02B27/10; G02F1/1335; G02F1/13357

Attorney, Agent or Firm:

Kazuya Nishi
Masatake Shiga
Kazunori Onami

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