FR507672A - Projecteur de faisceaux lumineux - Google Patents
Projecteur de faisceaux lumineuxInfo
- Publication number
- FR507672A FR507672A FR507672A FR507672DA FR507672A FR 507672 A FR507672 A FR 507672A FR 507672 A FR507672 A FR 507672A FR 507672D A FR507672D A FR 507672DA FR 507672 A FR507672 A FR 507672A
- Authority
- FR
- France
- Prior art keywords
- light beam
- beam projector
- projector
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT507672X | 1919-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR507672A true FR507672A (fr) | 1920-09-21 |
Family
ID=11273675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR507672A Expired FR507672A (fr) | 1919-02-01 | 1919-12-23 | Projecteur de faisceaux lumineux |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR507672A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1201277B (de) * | 1958-01-11 | 1965-09-23 | Akad Wissenschaften Ddr | Axialsymmetrische, meniskusformige Sammellinse |
US6854930B2 (en) | 2001-06-15 | 2005-02-15 | Saipem S.A. | Underwater pipeline connection joined to a riser |
-
1919
- 1919-12-23 FR FR507672A patent/FR507672A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1201277B (de) * | 1958-01-11 | 1965-09-23 | Akad Wissenschaften Ddr | Axialsymmetrische, meniskusformige Sammellinse |
US6854930B2 (en) | 2001-06-15 | 2005-02-15 | Saipem S.A. | Underwater pipeline connection joined to a riser |
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