正立ミラーシステム(EMS)を開発した松本龍郎のサイト。 たった2回の反射で天体望遠鏡の像を正立像にします。
Tatsuro Matsumoto; Inventor of the EMS, Erecting Mirror System. EMS offers non reversed upright image with no additional undesirable abberations.
カテゴリー: Diary
I think my web-diary is a bottle-mail to be thrown into the cyber ocean.
I believe there must be someone in the world who shares my feelings with. I do not intend to debate on anything with anyone.
I welcome the favorable e-mails only. e-mail FACEBOOK
You can see the older posts at the Internet Archives,too
Webの大海に流す瓶入りの手紙、そんな感じでWEB日記を書いています。共感いただけたらメールをください。
Debate をする気はないので、反論のメールは要りません。^^;
よろしければ、FACEBOOKもご覧ください。
古い投稿は、ネット・アーカイブでもみられます。
This “ORIGAMI” was the reward of the petit Star Party I held for the kindergarten boy and his mother on August 5th. He and his mother enjoyed thrilling time with Jupiter, Saturn and the Moon. He had amazing knowledge of astronomy as quoting the mechanism of Supernova explosion. And he brought this Origami to me as a token of his gratitude the next morning.
You should learn it to understand that the surface accuracy of EMS should not be more than enough. When you notice your eye-glasses has no surface accuracy of 1/20 lambda or 1/10 lambda, but there is no bad effect on the image of the telescopes; you will understand the excessive accuracy is not necessary on the EMS. The reason is, the total optical system of eye-ball and a lens before it is not “D”, but “d”. So the surface accuracy measured by the D should be multiplied by the ratio of D/d. Quite the same thing can be quoted on the case of the material mirror of the EMS.
Many of you have resumed muscle training in the period of “Stay-Home-Period” by the COVID-19. I am also one of the guys, but I might be very few of them who decided to regain the ability of my youth again at the age of 68. Which may sound unrealistic, but I am serious.
Today, I am going to show you the perfect adjusting model of the binocular viewing and the cross-eyed adjustment which many of the novice would often be trapped in.
If you can adjust EMS correctly, the target will appear in the same positon in both of the left and right field. Try the two images merging into one by the parallel watching. You will find one merged target and also one merged field.
If you are trapped into the cross-eye viewing, you will adjust the images as the photo above. Try the two imaged merging into one by the parallel watching. You will also find one merged target and also one merged field. In the actual binocular viewing the left and right field will not perfectly merge as the photo below. However in the experiment of this way, the field appear a bit behind from the target. Anyway remember that you should always aim at the position of the top example.
This is the typical image of the binocope cross-eye adjusted. I could not show you by the parallel watching of the above images.