AU634053B2 - Projector - Google Patents
ProjectorInfo
- Publication number
- AU634053B2 AU634053B2 AU75368/91A AU7536891A AU634053B2 AU 634053 B2 AU634053 B2 AU 634053B2 AU 75368/91 A AU75368/91 A AU 75368/91A AU 7536891 A AU7536891 A AU 7536891A AU 634053 B2 AU634053 B2 AU 634053B2
- Authority
- AU
- Australia
- Prior art keywords
- projector
- 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.)
- Ceased
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
- G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection
-
- 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
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
-
- 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
-
- 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
- G03B21/28—Reflectors in projection beam
-
- 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
- G03B21/30—Details adapted to collapse or fold, e.g. for portability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU75368/91A AU634053B2 (en) | 1990-05-10 | 1991-04-23 | Projector |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPK006290 | 1990-05-10 | ||
AUPK0062 | 1990-05-10 | ||
AU75368/91A AU634053B2 (en) | 1990-05-10 | 1991-04-23 | Projector |
Publications (2)
Publication Number | Publication Date |
---|---|
AU7536891A AU7536891A (en) | 1991-11-14 |
AU634053B2 true AU634053B2 (en) | 1993-02-11 |
Family
ID=25637903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU75368/91A Ceased AU634053B2 (en) | 1990-05-10 | 1991-04-23 | Projector |
Country Status (1)
Country | Link |
---|---|
AU (1) | AU634053B2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468105A (en) * | 1982-04-07 | 1984-08-28 | Constantin Systems, Inc. | Opaque projector |
US4565430A (en) * | 1982-09-02 | 1986-01-21 | Grunwald Peter H | Overhead projector |
US4824239A (en) * | 1985-12-25 | 1989-04-25 | Fuji Photo Film Co., Ltd. | Reflection-type overhead projector |
-
1991
- 1991-04-23 AU AU75368/91A patent/AU634053B2/en not_active Ceased
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468105A (en) * | 1982-04-07 | 1984-08-28 | Constantin Systems, Inc. | Opaque projector |
US4565430A (en) * | 1982-09-02 | 1986-01-21 | Grunwald Peter H | Overhead projector |
US4824239A (en) * | 1985-12-25 | 1989-04-25 | Fuji Photo Film Co., Ltd. | Reflection-type overhead projector |
Also Published As
Publication number | Publication date |
---|---|
AU7536891A (en) | 1991-11-14 |
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