The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2000
Filed:
Jun. 04, 1998
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A light separation apparatus using a flat plate including a wide band anti-reflection coating film, first and second dichroic mirrors, a wide band high-reflection coating film, an anti-reflection coating film, and a material forming the flat plate. The wide band anti-reflection coating film allows an incident light beam generated by a light source to penetrate into the material at a first angle without reflection. The first dichroic mirror allows only a light beam with a first wavelength to penetrate at the first angle and reflects light beams with other wavelengths at the second angle. The high-reflection coating film reflects at a second angle the light beam reflected by the first dichroic mirror. The second dichroic mirror allows only a light beam with a second wavelength to penetrate outside the material at the first angle so that it is parallel to the light beam with the first wavelength penetrated through the first dichroic mirror. The second dichroic mirror also reflects the light beam with a third wavelength at a second angle. The high-reflection coating film reflects the light beam reflected from the second dichroic mirror at the second angle. The anti-reflection coating film allows the light beam with the third wavelength to penetrate outside the material at the first angle without reflection so that it is parallel to the light beam with the second wavelength penetrated through the second dichroic mirror. The light beam penetrated through the wide band anti-reflection coating film and the light beams reflected from the first dichroic mirror, the second dichroic mirror, and the wide band high-reflection coating film pass through the material.