點修正鏡面--修正記錄
please help me
please check, I have pm youmy mobile number
Hay,Hay 寫:Kelvin,
恭喜!恭喜!
想請教你用1/2W 拋光幾耐就修正了鏡面及達到拋物線化? 我昨天晚上終於修正了山丘及扁球面而達到球面了,但當我用1/2W 長磨程拋光了一小時,只是見到鏡中光柵線中間開始向外彎曲,但外圍依然是垂直的,不知是否手法有誤還是拋光的時間未夠?
Hay
修正山丘偏球面用中間長1/2W手法,
拋物線化要用整體左中右都是均勻的長1/2W手法,
即正常的1/2W手法,並不是局部地區打光法.
請翻閱筆記有關拋物線化手法圖示.
記得拋物線化15分鐘試鏡一次,差多夠深(彎曲--->光柵)時,
要5或10分鐘試鏡一次,試鏡時玻璃要冷卻至室温,若果太熱可以
先用水冲冲.
祝順利.
Wongsir
Thank you, kevin ?
Dear All,
Why I have this question, because my mirror R=940mm
I have polish about 6hrs, but the Ronchi pattern was same as 1st, we take at the classroom.
Why should I do, (e.g. polish method) ?
Eric Mok
make a telescope 06 classmate
Dear All,
Why I have this question, because my mirror R=940mm
I have polish about 6hrs, but the Ronchi pattern was same as 1st, we take at the classroom.
Why should I do, (e.g. polish method) ?
Eric Mok
make a telescope 06 classmate
- 附加檔案
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- R=940mm, near focus picture
- 29-1.jpg (10.89 KiB) 已瀏覽 20508 次
Re: 回覆nosneb
呵~~ 記錯呢, 應該係鐘同學 my car is peugeot not benz le... benz would much more $$$pkchung 寫:Nosneb,
I am the one what you want who have taken your car (Benz) back to home ...... , are you looking for me
我諗大家都好期待塊鏡電鍍後會點呢..
最後由 Nosneb 於 週二 04 7月, 2006 00:53 編輯,總共編輯了 4 次。
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