| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a highly reliable light absorber at low cost without using an additional member.SOLUTION: A light absorber (10) includes: a first light absorbent (11) that receives incident light entering from an incident port to partially absorb and reflect the incident light; and a second light absorbent (12) that partially absorbs a part of reflected light reflected by the first light absorbent and reflects the reflected light to the first light absorbent. The reflectivity and the light resistance intensity of the first light absorbent are respectively higher than the reflectivity and the light resistance intensity of the second light absorbent.SELECTED DRAWING: Figure 1 |
