What are the benefits of purple food?
The "anthocyanin" rich in purple fruits and vegetables is one of the natural pigment polyphenols. It not only possesses powerful antioxidant properties and prevents hypertension, but also effectively protects eyesight.
It is the fulfillment of the saying that "the material is rare and valuable." Natural purple food is rare in nature. In the past, we have only a handful of common purple foods: purple rice, purple grape, mulberry, purple cabbage, purple eggplant, and purple onions. They have not paid enough attention to their special nutritional effects. In the traditional concept of health, people often hang on their lips with the words "Five colors into five organs". The five colors here are green, white, red, black and yellow. It can be seen that in the theory of dietary health in the past, there was no place for purple food, but purple was assigned to black food.
Purple food can also protect eyesight and protect eyesight
Extraordinary research on purple food is an issue that has been studied for nearly 20 years. The Western scientific community, represented by the United States, has found that purple foods are obtained through research on purple or black-purple vegetables, fruits, potatoes, and beans. What has one thing in common is that they all contain something called anthocyanins. Anthocyanins have a strong antioxidant effect, can effectively block the "free radicals"; anthocyanins also have a magical anti-vascular sclerosis, can prevent heart attacks and stroke; a large number of cancer studies have also confirmed that flowers The pigment has excellent anti-mutation and anti-tumor preventive effects.
"Free radicals" is a by-product of the body's metabolism due to factors inside and outside the body. Most scientists believe that free radicals damage the cells' DNA or tissues and organs, resulting in excessive oxidation of the human organs, resulting in aging and apoptosis. This is the famous "free radical" theory. With the increasing interest in anthocyanins, a large number of research results have confirmed that anthocyanins are the most outstanding natural antioxidants discovered so far, and their antioxidative effects are even better than the recognized vitamin C and vitamin E. According to reports from American scholars, the antioxidant effect of anthocyanidins is 30 to 50 times that of vitamin C and vitamin E, respectively, which is the best free radical scavenger.
In the damage of free radicals to tissues and organs, the eyeball is the most vulnerable, and the anti-free radical efficacy of purple food is the best natural "eye protection food". Therefore, nutrition experts suggest that often eating purple foods can effectively maintain eye health and prevent various eye diseases.
With the superior antioxidant activity of purple foods being discovered, more and more purple foods have been gradually discovered. Now the purple foods on the market are not limited to purple eggplants, purple grapes, so many kinds of vegetables, fruits, purple tomatoes , purple bell peppers, purple carrots, purple rice, purple corn, purple lentils, purple plums, purple cherries, purple potatoes, purple yam, purple sweet potatoes, etc., the family of purple foods is growing stronger, imported from abroad, purple okra, Purple chicory, purple asparagus and other new varieties are gradually presented on the table of the Chinese people.
Standard Beamsplitter Cube
A Standard Beamsplitter Cube is independent of polarization. The incoming light should be: 45°linearly polarized, circularly polarized or natural light. The outgoing beams are two partially polarized beams of about the equal intensities.
Polarizing Beamsplitter Cube
A polarizing beamsplitter cube consists of two right angle prisms cemented together. The hypotenuse face of one prism is coated with a special multilayer dielectric coating. When circularly polarized or natural light enter the cube vertically, it separated into two linearly polarized beams. The transmitted beam is P-polarized while the reflected beam is S-polarized.
And when a linearly polarized light come in, it similarly divided into two beams. But the energy ratio of the two outgoing beams is depending on the polarization of the incident beam. Polarizing beamsplitter cubes are available for many laser wavelengths and broadband ranges.
Non-Polarizing Beamsplitter Cube
These cubes split the energy with minimal polarization sensitivity. The polarization states are about the same for the entrance and exit beams.
Broadband Non-Polarizing Beamsplitter Cube`s hybrid coating has certain absorption but minimal polarization sensitivity. Due to the metallic nature of the hybrid coating, those cubes are not intended for use with high powerlasers.
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