BE471001A - - Google Patents
Info
- Publication number
- BE471001A BE471001A BE471001DA BE471001A BE 471001 A BE471001 A BE 471001A BE 471001D A BE471001D A BE 471001DA BE 471001 A BE471001 A BE 471001A
- Authority
- BE
- Belgium
- Prior art keywords
- parallelogram
- cam
- projection
- axis
- lever
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 239000005557 antagonist Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/34—Means for automatic focusing therefor
- G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/326—Enlargers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE471001A true BE471001A (forum.php) |
Family
ID=121000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471001D BE471001A (forum.php) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE471001A (forum.php) |
-
0
- BE BE471001D patent/BE471001A/fr unknown
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