iris

复数：irises

iris diaphragm彩虹光圈；[摄]可变光圈（等于iris）

1. The opening of the iris is called the pupil.
   虹膜的开口处叫做瞳孔。
2. The iris is fixed to the ciliary body.
   虹膜固定在睫状体上。
3. The iris of the eye is photographed from up to one meter away.
   眼睛的虹膜最远可在一公尺外的距离接受摄影。
4. Could you teach me how to adjust the iris of the camera?
   你能教我怎么调照相机的光圈吗？
5. Iris is the French national flower.
   鸢尾是法国国花。

How iris recognition works
How iris recognition works
10.7–How Iris Recognition Works
How iris recognition works
Chapter 25 - How Iris Recognition Works
Iris recognition: an emerging biometric technology
Chapter 25 – How Iris Recognition Works
Inhibition of vascular endothelial growth factor prevents retinal ischemia-associated iris neovascularization in a nonhuman primate.
Vascular endothelial growth factor is sufficient to produce iris neovascularization and neovascular glaucoma in a nonhuman primate
A human identification technique using images of the iris and wavelet transform