Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
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Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
Aurora Cottage-helkay
42% OFF
aliexpress

Aurora Cottage

$28.99 $49.99
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Mm size: 20x20x18mm
Inch size: 0.78*0.78*0.7in
Product application field: Camera filters, scientific experiments
Product applicable area: light refraction, decorations, gifts,
Description:
Features:Can be used as teaching tools or research and decorations, they are very beautiful.
Material: Optical Glass
Theme: Science
Features: Educational
Series: Fashion
Package Contents: 1 x Optical Glass Prism
Popular science on the prism
The name is a color combination prism. The so-called color combination means that it can separate and sum light. There are four light-transmitting surfaces. White light can be taken in any one of the light-transmitting surfaces, and red and green can be emitted from the remaining three light-transmitting surfaces. The three primary colors of blue are the so-called three primary lights. This is spectroscopy. There is also light, that is, the three light sources of red, green and blue are taken in from any three transparent surfaces, and white light is emitted from the remaining surface. This is combined light. To put it plainly, red, green and blue can be combined into white, and white can be divided into red, green and blue. This is an important accessory on the projector. The reason why the projector can project colors on the screen, you should know that the colored light on the screen is composed of three primary colors, and the color combination prism is an important prism that forms the three primary colors. For more information, please contact customer service.

The principle of color combination prism
The dichroic beam splitter is the dichroic element in the MD projector. A spectroscopic film is plated on the substrate glass, and a white light source is irradiated on the dichroic spectroscope. Part of the band of light is reflected and part of the band of light is transmitted. Because of the different bands, it presents different colors in two directions. This dichroic principle is applied in the optical engine of the projector. Two dichroic beamsplitters are respectively coated with two different beamsplitter films to decompose white light into R, G, and B primary colors. The principle of dichroic light splitting can also be used to make a color prism, which combines the three primary colors to form a color image

This is one of the most important accessories on the projector, the projector is able to cast shadows of color on the screen, you should know what color light is composed of three primary colors on the screen, color important Prism Prism is formed of three primary colors.

FREE SHIPPING on orders over $79 (or $5.99 shipping fee to worldwide)

(Since a lot of good and inexpensive goods are produced in Hong Kong, most of the items on our website are produced in and sent from Hong Kong to the whole world, and a small part is from Malaysia).

The product you purchased will be shipped out in 48~72 hours by Air Parcel Register Shipping Service.

Air Parcel Register Shipping Service: It usually take about 15-25 business days to be arrived. We will send the tracking number to you after the order was shipped out.

(Business days are Monday-Friday. Holidays, Saturday and Sunday are not included in shipping days).

*Return/Refund Policy*

7 Days NO REASON to return. You could return items to us if you do not satisfied with it. Our return policy is to contact us within 7 days after the package is delivered. If 7 days have gone by since package delivered, unfortunately we can’t offer you a refund. Please note that the cost of shipping return is paid by you.

Helkay believes in quick and easy returns, and wants to make this process as easy as possible for you.

7 Days NO REASON to return, the return policy is to contact us within 7 days after the package is delivered. If 7 days have gone by since package delivered, unfortunately we can’t offer you a refund. Plz note that the cost of shipping return is paid by you.

Please note that the tracking number of shipping return should be sent to us within 3 days after we sent you the return address, or the process of canceling the order will be cancelled.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

There are certain situations where only partial refunds are granted; Any item not in its original condition, is damaged or missing parts for reasons not due to our error.

To return your product, contact us using our contact page and we will provide you with our current return address.

 

For full details, read our full Return Policy below:

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

To complete your return, we require a receipt or proof of purchase. 

There are certain situations where only partial refunds are granted; Any item not in its original condition, is damaged or missing parts for reasons not due to our error.

 

Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. 

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment.

The refund will be given to you within 5 days after we receive the return items.

 

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted.

Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected]

 

Exchanges (if applicable)

We will replace items if they are defective or damaged.

 

Shipping

To return your product, contact us using our contact page and we will provide you with our current return address.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable.

 

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