SU410357A1 - - Google Patents
Info
- Publication number
- SU410357A1 SU410357A1 SU1768939A SU1768939A SU410357A1 SU 410357 A1 SU410357 A1 SU 410357A1 SU 1768939 A SU1768939 A SU 1768939A SU 1768939 A SU1768939 A SU 1768939A SU 410357 A1 SU410357 A1 SU 410357A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- billet
- oxygen
- lithium fluoride
- annealing
- transmission characteristic
- Prior art date
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- Crystals, And After-Treatments Of Crystals (AREA)
Description
1one
Известен способ изготовлени светофильтра путем изготовлени заготовки из кристаллического фтористого лити и последующей шлифовки ее.A known method of manufacturing a light filter is by making a billet of crystalline lithium fluoride and then grinding it.
Предлагаемый способ отличаетс тем, что перед шлифовкой производ т диффузионный отжиг заготовки в присутствии паров кислородсодержащих соединений при 750-830°С. Это позвол ет сместить границу спектральной характеристики пропускани светофильтра до 130 им.The proposed method is characterized in that before grinding, diffusion annealing of the preform is carried out in the presence of oxygen-containing vapors at 750-830 ° C. This allows the spectral transmittance characteristic of the filter to be shifted to 130.
На чертеже показана спектральна характеристика пропускани пластинки из кристаллического фтористого лити до отжига (а) i после отжига (б) при 830°С в течение 40 час. The drawing shows the spectral transmission characteristic of a lithium fluoride plate before annealing (a) i after annealing (b) at 830 ° C for 40 hours.
При диффузионном отжиге заготовки кристаллического фтористого лити при 750- 830°С в атмосфере кислородсодержащих паров добавка кислорода входит в виде центров, поглощающих только коротковолновое излучение , что увеличивает крутизпу спектральной характеристики пропускани в области 130- 150 нм и повышает прозрачность дл волн, больших 140 нм.During diffusion annealing of a billet of crystalline lithium fluoride at 750-830 ° C in an atmosphere of oxygen-containing vapors, the addition of oxygen enters as centers that absorb only short-wave radiation, which increases the steepness of the spectral transmission characteristic in the region of 130-150 nm and increases transparency for waves larger than 140 nm .
Предмет изобретени Subject invention
Способ изготовлени светофильтра путем обработки заготовки из кристаллического фтористого лити , отличающийс тем, что, с целью смещени границы спектральной характеристики пропускани до 130 нм, перед шлифовкой производ т диффузионный отжиг заготовки в присутствии паров кислородсодержащих соединений нри 750-830°С.A method of manufacturing a light filter by treating a crystalline lithium fluoride billet, characterized in that, in order to displace the spectral transmission characteristic boundary to 130 nm, a diffusion annealing of the billet in the presence of oxygen-containing compounds at 750-830 ° C is performed before grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1768939A SU410357A1 (en) | 1972-04-07 | 1972-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1768939A SU410357A1 (en) | 1972-04-07 | 1972-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU410357A1 true SU410357A1 (en) | 1974-01-05 |
Family
ID=20509479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1768939A SU410357A1 (en) | 1972-04-07 | 1972-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU410357A1 (en) |
-
1972
- 1972-04-07 SU SU1768939A patent/SU410357A1/ru active
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