超高反射率的電介質鍍膜，鏡面反射率高達99%。

超高精度、超高反射率鏡面，不像傳統稜鏡成像時需經過數次透射、反射易有像品質不良情形出現

假如您正在尋找一個高明亮度、對比鮮明及影像銳利，能搭配望遠鏡器並能於極端條件下觀測的配件，那麼景德光學出品的九十度角「2吋『電介質鍍膜』石英天頂鏡」，正是您最佳的選擇。

頂級的性能與明亮度

      電介質鍍膜，鏡面反射率高達99%。
      10mm的基底板，提供最佳的成像穩定度。
      鏡面精度高達1／10λ。
      精確的九十度角目視角度設計，可以確保影像對位精準，省去再藉用任何對位工具的不便。

一絲不茍的工藝設計

      附2"∼1.25"轉接環。
      附目鏡／轉接環的固定螺絲。
      大且有凸邊設計的「指旋螺釘」，即使您戴著手套，也可以輕易調整鬆緊。
　

外觀造型流線優雅

      專利、優雅的設計。
      高品質鋁合金加工設計。
      內部有防反射螺紋設計，能有效提高影像的對比。

構造極優

      內含轉接保護銅片（天頂鏡與轉接環都有）設計，避免與週邊配件的接頭連接時所可能造成的損壞。
      內部安全墊圈設計，避免週邊配件的兩吋接頭與鏡片表面的撞擊。

If what you are looking for is the highest achievable brightness, contrast and sharpness during critical observations with high-end instruments, WO 90° 2" mirror Quartz Dielectric star Diagonal is your choice. We recommend this product for everyone who only wants the best.

Top-Notch Performance and Brightness
• Dielectric coating allows 99% reflectivity.
• 10mm thick substrate flat for optimal image stability.
• Quartz being a harder material, it can be polished to a higher accuracy. Quartz also boasts one of the lowest expansion rate compared to other materials.
• Accurate design guarantees constant alignment. No further alignment needed.

Meticulous Craftsmanship
• 2” to 1.25” eyepiece adapter included.
• Lock screw for eyepiece/adapter.
• Big, knurled thumbscrews easy to turn even with gloves on.

Strikingly Beautiful
• Patented, elegant designPatented*.
• High-quality machining out of the best aluminum.
• Internally antireflection threaded for highest contrast.

Superbly Constructed
• Compression rings (both on diagonal and adapter) to prevent barrels’ marring.
• Internal safety stop prevents 2” barrels from hitting the mirror.

Why W.O. diagonals do not feature an Adjustable alignment system?
•Having an adjustable alignment system is an admission that the diagonal can go out of collimation due to poor mechanical construction. Thanks to the patented design of WO diagonals, you will always have a diagonal that performs perfectly like the first day you got one!

產品規格：

超高反射率的電介質鍍膜，鏡面反射率高達99%。
10mm厚的鏡片，鏡片表面精度為1／10λ。
附2"∼1.25"轉接環。
內徑（48mm）：內有螺牙可轉接各種濾鏡。
總重量：470 g。

Ultra High Dielectric 99% reflectivity.
Highest precision surface with 10mm-thick high-quality Quartz mirror.
2"- 1.25" adapter with brass clamping ring.
Inside diameter (48mm): threaded to fit a variety of filters.
Weight : 470g

請確認您的週邊配件的接頭長度是否小於64mm， 否則將可能導致天頂鏡鏡面的損壞。

鏡片報告

專利證明