Search found 59 matches
- Fri Feb 11, 2011 9:22 am
- Forum: Российский Форум
- Topic: Интересная ссылка
- Replies: 28
- Views: 22707
Интересная ссылка
Независимо от толщины эмульсии, "большое смещение" фотопластинки относительно предмета за время экспозиции недопустимо. Вернее допустимо - однократно, при условии того, что до и после смещения никаких других вибраций не было. Так что объяснение с "большой толщиной эмульсии" и бол...
- Mon Jan 17, 2011 8:36 am
- Forum: Российский Форум
- Topic: Не могу купить Славич!
- Replies: 6
- Views: 6645
Не могу купить Славич!
English: Discussing problems purchasing PFG plates in Russia directly from manufacturer and suggested alternatives. Probably this does matter only for people living on territory of the Ex-USSR.
- Mon Dec 06, 2010 8:20 am
- Forum: Beginning Holography
- Topic: Home Optical Table
- Replies: 30
- Views: 15416
Home Optical Table
I personally found a solution I like: a heavy board of any kind lying on bag(s) with sand. If this is not enough, partially inflated tubes under bags work fine. I also made a portable version of this one: a wooden suitcase filled with a single big bag of sand. If open, a heavy wooden board covered w...
- Thu Nov 18, 2010 8:41 am
- Forum: Российский Форум
- Topic: Интересная ссылка
- Replies: 28
- Views: 22707
Интересная ссылка
У меня вообще создалось впечатление, что это развод. Очень уж странные заявления, которые непонятно как согласуются с законами оптики. Насчет когерентности лазера, например - "отбор не требуется"??? Голограммы на фотографиях подозрительно яркие, похоже на БХЖ. Но если это БХЖ, то каким лаз...
- Sun Nov 14, 2010 6:23 am
- Forum: Off Topic
- Topic: 442nm HeCd Replacement
- Replies: 3
- Views: 2926
442nm HeCd Replacement
I'd like to try blue diodes as well. But now I'm too busy making a unidirectional ring MOPA laser from an SSY-1 for pulsed holography
- Thu Nov 11, 2010 4:20 am
- Forum: Off Topic
- Topic: 442nm HeCd Replacement
- Replies: 3
- Views: 2926
442nm HeCd Replacement
Somebody reported that Nichia blue diodes from Casio projectors that are solt onn eBay here and there have good coherence at certain current if thermally stabilized. Let's try?
- Mon Nov 08, 2010 3:05 pm
- Forum: AgX
- Topic: Sergey Vorobyov's developer - OD-1
- Replies: 1
- Views: 2609
Sergey Vorobyov's developer - OD-1
Some time ago Mr. Vorobyov invented a developer for silver-halide holograms that does not contain any rhodanides. It is ideal for both beginning and advanced holography. The original Russian article is here: http://www.holography.ru/tech8rus.htm Original formula: Metol = 2 g Sodium Sulphite (anhydro...
- Mon Nov 08, 2010 1:49 pm
- Forum: Российский Форум
- Topic: Магазин
- Replies: 3
- Views: 5578
Магазин
[English summary] A new hologram shop is now open in Moscow instead of the one that was closed this summer.
- Mon Nov 01, 2010 3:36 am
- Forum: about holographyforum.org
- Topic: Russian Forum?
- Replies: 4
- Views: 13548
Russian Forum?
Colin, I've sent an email to you about the Russian part. I would like to make the archives available somewhere. I can clean them up and fill an empty forum with them. If there is some problem having a Russian part on the English forum, I can make a separate Russian forum as well. But it is not so co...