IT1130324B - COOLING OPTICAL APPARATUS - Google Patents
COOLING OPTICAL APPARATUSInfo
- Publication number
- IT1130324B IT1130324B IT20908/80A IT2090880A IT1130324B IT 1130324 B IT1130324 B IT 1130324B IT 20908/80 A IT20908/80 A IT 20908/80A IT 2090880 A IT2090880 A IT 2090880A IT 1130324 B IT1130324 B IT 1130324B
- Authority
- IT
- Italy
- Prior art keywords
- optical apparatus
- cooling optical
- cooling
- optical
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 title 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
- G03B21/16—Cooling; Preventing overheating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792912360 DE2912360A1 (en) | 1979-03-29 | 1979-03-29 | COOLED OPTICAL DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8020908A0 IT8020908A0 (en) | 1980-03-26 |
IT1130324B true IT1130324B (en) | 1986-06-11 |
Family
ID=6066732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20908/80A IT1130324B (en) | 1979-03-29 | 1980-03-26 | COOLING OPTICAL APPARATUS |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5831571B2 (en) |
DE (1) | DE2912360A1 (en) |
DK (1) | DK133880A (en) |
FR (1) | FR2452728A1 (en) |
IT (1) | IT1130324B (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3408138A (en) * | 1966-08-04 | 1968-10-29 | Inflight Motion Pictures Inc | Cooling apparatus for motion picture projector |
-
1979
- 1979-03-29 DE DE19792912360 patent/DE2912360A1/en not_active Ceased
-
1980
- 1980-03-26 IT IT20908/80A patent/IT1130324B/en active
- 1980-03-26 FR FR8006677A patent/FR2452728A1/en active Pending
- 1980-03-28 DK DK133880A patent/DK133880A/en not_active IP Right Cessation
- 1980-03-28 JP JP55040108A patent/JPS5831571B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55133026A (en) | 1980-10-16 |
DE2912360A1 (en) | 1980-10-16 |
IT8020908A0 (en) | 1980-03-26 |
DK133880A (en) | 1980-09-30 |
FR2452728A1 (en) | 1980-10-24 |
JPS5831571B2 (en) | 1983-07-07 |
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