Patent US745972A successfully refreshed from Google Patents.
Patent US5300976A successfully refreshed from Google Patents.
US5300976A
Expired / Lapsed
US
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Movie camera system having view finding and projecting operations
Assignee: LG Electronics Inc
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Filing: 1993-04-16
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Granted: 1994-04-05
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Expires: 2013-04-16
Abstract
Abstract An electronic movie camera system having a projecting function as well as a view finding function. The system includes a system body, a housing mounted on the system body, an LCD panel disposed within the housing to display an image corresponding to an image signal received from the system body, a focusing lens unit mounted to one end of the housing disposed rearwardly of the LCD panel and adapted to project the displayed image on an external screen, a back light disposed rearwardly of the LCD panel to emit a view finding light, a polarizing plate disposed forwardly of the LCD panel, a view finder coupling unit selectively attached to the other end of the housing disposed forwardly of the LCD panel, the view finder coupling unit having an eye lens, and a projector coupling unit selectively attached to the other end of the housing, the projector coupling unit having a light source for emitting a projecting light and a condensing lens for the projecting light, whereby the movie camera system is capable of both a view finding operation and a projecting operation.
Inventors
- 👤 Jae C. Lim
- 👤 Myung K. Yeo
- 👤 Yong T. Lim
- 👤 Nam S. Lee
- 👤 Jin W. Seo
- 👤 Dae S. Shim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:51
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; H; H04; H04N; H04N23/00; H04N23/50; H04N23/53; H04N23/531; H04N23/60; H04N23/63; H04N5/00; H04N5/74; H04N5/7416; H04N5/7441; H04N9/00; H04N9/12; H04N9/31; H04N9/3141; H04N9/3173; H04N9/3176
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
185 words
A movie camera system comprising: a system body having an image signal; a housing mounted on said system body; a display element disposed within said housing and adapted to display an image corresponding to the image signal received from the system body; a focusing lens unit mounted to one end of the housing disposed on one side of said display element and adapted to project the displayed image on an external screen; a back light disposed on the one side of the display element to emit a view finding light; a polarizing plate disposed on another side of the display element; a view finder coupling unit selectively attached to the other end of the housing disposed on the another side of the display element, said view finder coupling unit having an eye lens; and a projector coupling unit selectively attached to the other end of the housing, said projector coupling unit having a light source for emitting a projecting light and a condensing lens for said projecting light, whereby said movie camera system is capable of both a view finding operation and a projecting operation.
Claim 2
Dependent Claim
185 words
A movie camera system comprising: a system body having an image signal; a housing mounted on said system body; a display element disposed within said housing and adapted to display an image corresponding to the image signal received from the system body; a focusing lens unit mounted to one end of the housing disposed on one side of said display element and adapted to project the displayed image on an external screen; a back light disposed on the one side of the display element to emit a view finding light; a polarizing plate disposed on another side of the display element; a view finder coupling unit selectively attached to the other end of the housing disposed on the another side of the display element, said view finder coupling unit having an eye lens; and a projector coupling unit selectively attached to the other end of the housing, said projector coupling unit having a light source for emitting a projecting light and a condensing lens for said projecting light, whereby said movie camera system is capable of both a view finding operation and a projecting operation.
Claim 3
Dependent Claim
37 words
A movie camera system in accordance with claim 1, wherein said back light is engaged with a guide groove disposed in the housing, the back light being capable of rotating while being guided along the guide groove
Claim 4
Dependent Claim
38 words
A movie camera system in accordance with claim 1, further comprising a fan disposed near the one end of said housing on a portion of the system body and adapted to discharge heat generated from said light source.
Claim 5
Dependent Claim
30 words
A movie camera system in accordance with claim 1, wherein said projector coupling unit comprises a housing member and a plurality of heat discharge ports disposed at said housing member.
Claim 6
Dependent Claim
22 words
A movie camera system in accordance with claim 1, wherein said light source of the projector coupling unit is a halogen lamp.
Claim 7
Dependent Claim
24 words
A movie camera system in accordance with claim 1, further comprising a polarizing plate disposed between said focusing lens unit and said back light.
Claim 8
Dependent Claim
19 words
A movie camera system in accordance with claim 1, wherein said display element is a liquid crystal display panel.
Claim 9
Dependent Claim
20 words
A movie camera system in accordance with claim 1, wherein said focusing lens unit comprises a plurality of convex lenses.
Claim 10
Dependent Claim
170 words
A movie camera system comprising: a system body having an image signal; a housing fixedly mounted on said system body; a light source disposed within said housing and mounted to one end of the housing, said light source being adapted to provide light for one of a view finding operation and a projecting operation; a condensing lens disposed at one side of and near said light source; a polarizing plate disposed at one side of said condensing lens; a display element rotatably disposed at one side of said polarizing plate to be vertically invertible and adapted to display an image based on the image signal received from the system body; and a focusing lens unit disposed within the housing and fixedly mounted to another end of the housing, said focusing lens unit being adapted to selectively enable the displayed image to be seen therethrough and project the displayed image on an external screen, whereby said movie camera system is capable of both a view finding operation and a projecting operation.
Claim 11
Dependent Claim
170 words
A movie camera system comprising: a system body having an image signal; a housing fixedly mounted on said system body; a light source disposed within said housing and mounted to one end of the housing, said light source being adapted to provide light for one of a view finding operation and a projecting operation; a condensing lens disposed at one side of and near said light source; a polarizing plate disposed at one side of said condensing lens; a display element rotatably disposed at one side of said polarizing plate to be vertically invertible and adapted to display an image based on the image signal received from the system body; and a focusing lens unit disposed within the housing and fixedly mounted to another end of the housing, said focusing lens unit being adapted to selectively enable the displayed image to be seen therethrough and project the displayed image on an external screen, whereby said movie camera system is capable of both a view finding operation and a projecting operation.
Claim 12
Dependent Claim
19 words
A movie camera system in accordance with claim 9, wherein said display element is a liquid crystal display panel.
Claim 13
Dependent Claim
65 words
A movie camera system in accordance with claim 9, wherein said display element has a shaft rotatably mounted at both ends thereof to said housing and the movie camera system further comprises means for rotating the display element, said rotating means comprising a knob fixedly mounted to one end of said shaft protruded outwardly of the housing to allow manual rotation of the display element.
Claim 14
Dependent Claim
30 words
A movie camera system in accordance with claim 11, wherein said means for rotating said display element further includes a motor for rotating said shaft to rotate the display element.
Claim 15
Dependent Claim
41 words
A movie camera system in accordance with claim 9, wherein said light source is a halogen lamp and an amount of light from the light source is adjustable, depending on a selection between the view finding operation and the projecting operation.
Claim 16
Dependent Claim
24 words
A movie camera system in accordance with claim 9, further comprising a polarizing plate disposed between said display element and said focusing lens unit.
Claim 17
Dependent Claim
35 words
A movie camera system in accordance with claim 9, further comprising a fan disposed at a portion of the system body beneath the light source and adapted to discharge heat generated from said light source.
Claim 18
Dependent Claim
23 words
A movie camera system in accordance with claim 9, wherein said housing has a plurality of heat discharge ports near said light source.
Claim 19
Dependent Claim
20 words
A movie camera system in accordance with claim 9, wherein said focusing lens unit comprises a plurality of convex lenses.
Claim 20
Dependent Claim
27 words
A movie camera system in accordance with claim 1, further comprising a bracket fixedly mounted to the system body, said housing being rotatably mounted to the bracket.
Claim 21
Dependent Claim
43 words
A movie camera system in accordance with claim 1, wherein said back light is pivotally mounted at one end thereof to said housing, said back light being capable of rotating through an angle of approximately 90°, according to a rotation of the housing.
Claim 22
Dependent Claim
21 words
A movie camera system in accordance with claim 8, wherein said focusing lens unit further comprises at least one concave lens.
Claim 23
Dependent Claim
21 words
A movie camera system in accordance with claim 17, wherein said focusing lens unit further comprising at least one concave lens.
References Cited (Backward Citations)
JPH01115371A
Cited
US5185712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |