Optical thin film light filter with high signal-to-noise ratio
The utility model belongs to the field of photoselective devices, and in particular relates to an optical thin film light filter with high signal-to-noise ratio. The thin film light filter comprises a light filter body (1) and is characterized in that an all-region membrane layer (2) is plated on a...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
25.07.2012
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Subjects | |
Online Access | Get full text |
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Abstract | The utility model belongs to the field of photoselective devices, and in particular relates to an optical thin film light filter with high signal-to-noise ratio. The thin film light filter comprises a light filter body (1) and is characterized in that an all-region membrane layer (2) is plated on a light passing surface of a substrate of the light filter body (1); an extinction dielectric layer (3) is smeared on the side wall of the light filter body (1); a dull black shell is arranged outside the light filter body (1); the dull black shell comprises a shell (4) with an L-shaped longitudinal cross section, and a packaging ring (5); the packaging ring (5) is arranged at the upper part of the shell (4); and the longitudinal cross section of the packaging ring (5) is of an L shape. The thin film light filter with high signal-to-noise ratio, provided by the utility model, has the advantages that transmissivity of a transmission band is high and optical density of a rejection zone is high. |
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AbstractList | The utility model belongs to the field of photoselective devices, and in particular relates to an optical thin film light filter with high signal-to-noise ratio. The thin film light filter comprises a light filter body (1) and is characterized in that an all-region membrane layer (2) is plated on a light passing surface of a substrate of the light filter body (1); an extinction dielectric layer (3) is smeared on the side wall of the light filter body (1); a dull black shell is arranged outside the light filter body (1); the dull black shell comprises a shell (4) with an L-shaped longitudinal cross section, and a packaging ring (5); the packaging ring (5) is arranged at the upper part of the shell (4); and the longitudinal cross section of the packaging ring (5) is of an L shape. The thin film light filter with high signal-to-noise ratio, provided by the utility model, has the advantages that transmissivity of a transmission band is high and optical density of a rejection zone is high. |
Author | CAO YI YIN XIAOJUN FEI SHUGUO WANG RUISHENG GAO PENG ZHAO SHUAIFENG |
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Snippet | The utility model belongs to the field of photoselective devices, and in particular relates to an optical thin film light filter with high signal-to-noise... |
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Title | Optical thin film light filter with high signal-to-noise ratio |
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