BE426403A - - Google Patents
Info
- Publication number
- BE426403A BE426403A BE426403DA BE426403A BE 426403 A BE426403 A BE 426403A BE 426403D A BE426403D A BE 426403DA BE 426403 A BE426403 A BE 426403A
- Authority
- BE
- Belgium
- Prior art keywords
- reflector
- projection apparatus
- light
- lamps
- image field
- Prior art date
Links
- 230000001788 irregular Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Publications (1)
Publication Number | Publication Date |
---|---|
BE426403A true BE426403A (enrdf_load_html_response) |
Family
ID=87200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE426403D BE426403A (enrdf_load_html_response) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE426403A (enrdf_load_html_response) |
-
0
- BE BE426403D patent/BE426403A/fr unknown
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