Focusing Lenses

Achromatic Focusing Lenses Combination of CaF2 lens with superior transmission characteristics in the ultraviolet region and synthetic fused silica lens for correction of chromatic and spherical aberrations.

Ultra-Violet Focusing Lenses Lenses of synthetic fused silica for correction of spherical and coma aberrations at 248 nm.

Visible Spectrum Achromats Combination of two or three lenses designed to correct chromatic, spherical, and coma aberrations.

YAG Laser Focusing Lenses Combination of two or three lenses designed to correct spherical and coma aberrations for light at the 1,064 nm wavelength and convergence of light at the maximum diffraction limit.

Infrared Achromats Lenses of CaF 2 and CORNING 9754, with superior transmission characteristics in the range from the visible region to a wavelength of about 4 μm.

SIGMA KOKI CO.,LTD.
Tokyo Head office
5F, SIGMA KOKI Tokyo Head office 1-19-9, Midori, Sumida-ku, Tokyo, 130-0021, JAPAN
TEL.+81-3-5638-8228 FAX.+81-3-5638-6550 international@sigma-koki.com
Osaka Branch
4-9-28 Nishi-Nakajima, Yodogawa-ku, Osaka 532-0011, JAPAN
TEL.+81-6-6307-4835 FAX.+81-6-6307-4834
Kyushu Sales Office
3-17 Hie-machi, Hakata-ku, Fukuoka 812-0014, JAPAN
TEL. +81-92-481-4300 FAX. +81-92-481-4310