BE432912A - - Google Patents
Info
- Publication number
- BE432912A BE432912A BE432912DA BE432912A BE 432912 A BE432912 A BE 432912A BE 432912D A BE432912D A BE 432912DA BE 432912 A BE432912 A BE 432912A
- Authority
- BE
- Belgium
- Prior art keywords
- plate
- plane
- focusing
- planes
- zones
- Prior art date
Links
- 230000003287 optical Effects 0.000 claims description 17
- 239000011521 glass Substances 0.000 claims description 4
- 238000007788 roughening Methods 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000839 emulsion Substances 0.000 description 3
- 230000033458 reproduction Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000003595 spectral Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/40—Optical focusing aids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Focus Adjustment (AREA)
- Projection Apparatus (AREA)
- Focusing (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE432912A true BE432912A (it) |
Family
ID=92381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE432912D BE432912A (it) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE432912A (it) |
-
0
- BE BE432912D patent/BE432912A/fr unknown
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