# Optics

In this section, we describe the optical components required for this project. You have two options for sourcing these parts: purchasing them individually through **Edmund Optics, Shelyak and SVBony** or acquiring a complete optical kit from **Shelyak**. Below are the details of each option to help you decide the best approach for your needs.

<figure><img src="https://3365769115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fj8VBNLZ1OZic6lJdEMn0%2Fuploads%2FnIzgh9PC2G8k0KJyTGbY%2Foptics.jpg?alt=media&#x26;token=fed78abc-e5d0-47ed-b1c1-a4312304f9f1" alt=""><figcaption></figcaption></figure>

<table data-view="cards"><thead><tr><th></th></tr></thead><tbody><tr><td><img src="https://3365769115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fj8VBNLZ1OZic6lJdEMn0%2Fuploads%2Fs9sVQhNYVIWEeDgQRVEC%2Fedmund-optics-vector-logo.png?alt=media&#x26;token=5b4d9330-2e74-4d18-aa7c-d3d8de361b0e" alt="" data-size="original"></td></tr><tr><td><img src="https://3365769115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fj8VBNLZ1OZic6lJdEMn0%2Fuploads%2F56mwpTbmc29Ow1OqTfui%2Fsvbony-logo-002.jpg.pagespeed.ce.603HstyGRA.jpg?alt=media&#x26;token=c5788a98-c7c0-42d1-9e2f-aed1ab023074" alt="" data-size="original"></td></tr><tr><td><img src="https://3365769115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fj8VBNLZ1OZic6lJdEMn0%2Fuploads%2FccxTHUKEHSQRlA7cOKxo%2FSans%20titre-1.png?alt=media&#x26;token=d9e59d1e-4dc0-4395-99eb-0b3978b4ccb9" alt="" data-size="original"></td></tr></tbody></table>

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### **Purchase Individual Components**&#x20;

<table><thead><tr><th>Name</th><th width="273">Ref</th><th>Link</th></tr></thead><tbody><tr><td>Main refractor lense</td><td>Edmund #32-917 - D=25 F=200 </td><td><a href="https://www.edmundoptics.fr/p/25mm-dia-x-200mm-fl-mgfsub2sub-coated-achromatic-doublet-lens/2697/">https://www.edmundoptics.fr/p/25mm-dia-x-200mm-fl-mgfsub2sub-coated-achromatic-doublet-lens/2697/</a></td></tr><tr><td>Camera lense</td><td>Edmund #32-327 - D=25 F=100</td><td><a href="https://www.edmundoptics.fr/p/25mm-dia-x-100mm-fl-mgfsub2sub-coated-achromatic-doublet-lens/2288/">https://www.edmundoptics.fr/p/25mm-dia-x-100mm-fl-mgfsub2sub-coated-achromatic-doublet-lens/2288/</a></td></tr><tr><td>Collimator lense</td><td>Edmund #32-325 - D=25 F=75</td><td><a href="https://www.edmundoptics.fr/p/25mm-dia-x-75mm-fl-mgfsub2sub-coated-achromatic-doublet-lens/2287/">https://www.edmundoptics.fr/p/25mm-dia-x-75mm-fl-mgfsub2sub-coated-achromatic-doublet-lens/2287/</a></td></tr><tr><td>Mirror</td><td>Edmund #46-716 - 23x16x5mm</td><td><a href="https://www.edmundoptics.fr/p/16-x-23mm-uv-enhanced-aluminum-lambda4-mirror/7050/">https://www.edmundoptics.fr/p/16-x-23mm-uv-enhanced-aluminum-lambda4-mirror/7050/</a></td></tr><tr><td>Plane holographic reflection grating</td><td>Edmund #15-755 - 2400 l/mm - 25x25mm</td><td><a href="https://www.edmundoptics.fr/p/2400-grooves-25x25mm-200-800nm-holographic-high-performance-reflection-grating/43683/">https://www.edmundoptics.fr/p/2400-grooves-25x25mm-200-800nm-holographic-high-performance-reflection-grating/43683/</a></td></tr><tr><td>Neutral density 1.25" filter</td><td>SV139 - 1.25inch - ND 0.9</td><td><a href="https://www.svbony.com/sv139-nd-filter/#W9108B">https://www.svbony.com/sv139-nd-filter/#W9108B</a></td></tr><tr><td>Slit</td><td>Sol’Ex / SUNSCAN 2 positions 7 – 10 µm (GEN2)</td><td><a href="https://www.shelyak.com/produit/fente-solex-sunscan-2-positions-7-10-%C2%B5m-gen2/">https://www.shelyak.com/produit/fente-solex-sunscan-2-positions-7-10-%c2%b5m-gen2/</a></td></tr></tbody></table>

### **Optical Kit - Shelyak**

Alternatively, Shelyak offers a convenient kit that includes all the required optics pre-selected and ready to assemble. This option is ideal for those who want to minimize the risk of error and ensure all components are compatible with each other.

<https://www.shelyak.com/produit/optical-kit-for-sunscan-spectroheliograph/?lang=en>

**What’s Included in the Shelyak Kit:**

* All necessary lenses, mirror.
* Holographic reflection grating for light dispersion.
* Slit.

<figure><img src="https://3365769115-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fj8VBNLZ1OZic6lJdEMn0%2Fuploads%2FUZi7N5rPJrnerBTZucAE%2FKitOptiqueSUNSCAN.png?alt=media&#x26;token=e9110958-ad60-4038-91ad-e4956d5d84f5" alt="" width="374"><figcaption></figcaption></figure>

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