BE353731A - - Google Patents
Info
- Publication number
- BE353731A BE353731A BE353731DA BE353731A BE 353731 A BE353731 A BE 353731A BE 353731D A BE353731D A BE 353731DA BE 353731 A BE353731 A BE 353731A
- Authority
- BE
- Belgium
- Prior art keywords
- lens
- mirror
- source
- optical system
- projection window
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 11
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 210000001747 pupil Anatomy 0.000 description 6
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 239000007787 solid 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
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Projection Apparatus (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE353731A true BE353731A (enFirst) |
Family
ID=28280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE353731D BE353731A (enFirst) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE353731A (enFirst) |
-
0
- BE BE353731D patent/BE353731A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6425677B1 (en) | Illuminating apparatus using multiple light sources | |
| EP0030875A1 (fr) | Dispositif d'éclairage pour grand écran | |
| US20090257230A1 (en) | Cassegrain optical configuration to expand high intensity led flashlight to larger diameter lower intensity beam | |
| FR2443642A1 (fr) | Dispositif d'eclairement de grande puissance | |
| EP0767925B1 (fr) | Jumelle compacte de vision nocturne | |
| BE353731A (enFirst) | ||
| EP0740169B1 (fr) | Dispositif d'éclairement | |
| FR2863718A1 (fr) | Dispositifs de visualisation modulaires | |
| CH135238A (fr) | Dispositif d'éclairage pour projecteur cinématographique. | |
| EP0892940B1 (fr) | Dispositif de repartition de lumiere sur un support d'image | |
| FR2718825A1 (fr) | Générateur de lumière à haut rendement pour fibres optiques. | |
| FR2753519A1 (fr) | Projecteur de lumiere avec concentrateur | |
| JP2000292836A5 (enFirst) | ||
| SU165075A1 (ru) | СИСТЕМА АВТОКОЛЛИМАЦМОННОГО ОСВЕЩЕНИЯ и ФОТОГРАФИРОВАНИЯ ПУЗЫРЬКОВЫХ КАМЕР | |
| BE366007A (enFirst) | ||
| FR2666421A1 (fr) | Projecteur a arc au xenon de forte puissance. | |
| BE372389A (enFirst) | ||
| BE519358A (enFirst) | ||
| FR2938667A1 (fr) | Dispositif de projection d'image de type diapositive adaptable sur spot led | |
| KR980007610A (ko) | 평행빔 조명장치 및 이 조명장치가 채용된 액정프로젝트 | |
| CH259139A (fr) | Viseur pour appareils photographiques reflex. | |
| BE432836A (enFirst) | ||
| Cheng | Doubling energy feed efficiency with a new reflector system | |
| FR2690999A1 (fr) | Optique de source pour projecteur à lampe à arc à haut rendement. | |
| JP2004523007A (ja) | オーバーヘッドプロジェクタ |