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US 2016/0259096 A1Published application
Optical absorber which absorbs light beam
AssigneeFanuc Corporation
InventorsTakafumi Murakami, Michinori Maeda
Life of this patent
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Abstract
An optical absorber includes a first light-absorbing body which receives light incident from an entrance aperture and partially absorbs and reflects the incident light, and a second light-absorbing body which partially absorbs the incident light reflected by the first light-absorbing body and partially reflects the incident light toward the first light-absorbing body. The reflectance and light resistance of the first light-absorbing body are set higher than the reflectance and light resistance, respectively, of the second light-absorbing body.
Claims7
An optical absorber comprising:
- a first light-absorbing body which receives light incident from an entrance aperture and partially absorbs and reflects the incident light;
- and
- a second light-absorbing body which partially absorbs the incident light reflected by the first light-absorbing body and partially reflects the incident light toward the first light-absorbing body,
- wherein a reflectance and a light resistance of the first light-absorbing body are set higher than a reflectance and a light resistance, respectively, of the second light-absorbing body.
1 more element
Dependencies are inferred from the claim text.