BE553822A - - Google Patents
Info
- Publication number
- BE553822A BE553822A BE553822DA BE553822A BE 553822 A BE553822 A BE 553822A BE 553822D A BE553822D A BE 553822DA BE 553822 A BE553822 A BE 553822A
- Authority
- BE
- Belgium
- Prior art keywords
- optical
- objective
- lens
- holes
- elements
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 98
- 238000000034 method Methods 0.000 claims description 7
- 238000002955 isolation Methods 0.000 claims 1
- 238000009877 rendering Methods 0.000 claims 1
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
- B41B21/00—Common details of photographic composing machines of the kinds covered in groups B41B17/00 and B41B19/00
- B41B21/16—Optical systems
Landscapes
- Lenses (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE553822A true BE553822A (enrdf_load_stackoverflow) |
Family
ID=178480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE553822D BE553822A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE553822A (enrdf_load_stackoverflow) |
-
0
- BE BE553822D patent/BE553822A/fr unknown
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