ThaiExcite

ThaiExcite
88/41 Kanlapapruek Road, Bangkae, Bangkae, 10160, Bangkok, ประเทศไทย
ติดต่อสอบถาม: 081-239-3299
อีเมล์: info@thaiexcite.com


URL: http://www.thaiexcite.com/GSO-Elliptical-Secondary-Mirror-28mm.html


กระจกกล้องดูดาว GSO Elliptical Secondary Mirror 28mm


รายละเอียด


คะแนนสินค้า
ผู้ผลิต
จำนวนในสต๊อก
สินค้าหมด
น้ำหนัก
30.00 g
ราคาของเรา
฿990.00


รายละเอียด


กระจกกล้องดูดาว GSO Elliptical Secondary Mirror 28mm

 

     GSO mirrors secondary elliptic กระจกกล้องดูดาว

 

GSO offers very HIGH quality elliptical secondary mirrors for the people who want to build their own telescopes or DIY project.  For years, GSO has made dobsonian telescopes sold under various labels. Users of these scopes know the excellent quality of the optics included, and they have a well-deserved reputation for being the finest mirrors in their price range. We are now pleased to offer virtually the entire line of GSO's Newtonian optics in our market.

GSO's elliptical secondary mirrors are perfect for those who want to build their own telescopes or replace mirrors in older ones. Ranging in aperture from 28mm to 104mm, these mirrors are made from optical grade BK-7 glass. All mirrors have a reflective aluminum coating with a reflectivity of 92-93%. The aluminum coating is protected by a silicon oxide (SiO2) over-coating.

GSO uses high-volume, state-of-the-art, high quality manufacturing and test lines. GSO guarantees diffraction limited performance, but their mirrors typically have a mirror surface quality of 1/16 wave RMS at least, and often better. This very smooth mirror surface results in excellent optical performance with practically no light scatter. Although it does not provide individual test reports, GSO tests each mirror via laser interferometry before shipping.

Besides elliptical secondary mirrors, we also offer matching GSO parabolic primary mirrors.

 

GSO Secondary Mirror Specifications

Minor Axis Diameter Approx. Major Axis Diameter Approx. Thickness Mirror Weight
28mm 38mm 5mm 9g
31mm 43mm 8mm 20g
46.5mm 65mm 10mm 60g
50mm 70mm 10mm 65g
62.5mm 88mm 12mm 128g
68mm 95mm 15mm 190g
70mm 97mm 12mm 156g
74mm 104mm 16mm 232g
80mm 114mm 18mm 326g
88mm 122mm 20mm 411g
104mm 145mm 17mm 515g

 

Notes:
- Actual measurements can vary by a little bit from all values shown above due to manufacturing variations.
- Actual coated mirror diameter will be 2-3 mm less than the measurements listed above.

       GSO mirrors กระจกกล้องดูดาว