← Back to Patent Explorer
US5315334A Expired / Lapsed US ⏱️ 0.0 years remaining

Liquid crystal finder/projector for video camera

Assignee: Fujifilm Holdings Corp
•
Filing: 1992-03-13
•
Granted: 1994-05-24
•
Expires: 2012-03-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A liquid crystal finder attached video camera whose liquid crystal finder is usable as a liquid crystal projector. This liquid crystal finder attached video camera is composed of a video camera body, a liquid crystal view finder unit having a transmission-type liquid crystal display portion fixed thereto and an eyepiece portion turnable between a picture-taking position behind the transmission-type liquid crystal display portion and a projector position ahead of the transmission-type liquid crystal display portion, the front face of the liquid crystal view finder unit being detachably mounted on a battery attachment face at the back of the video camera body, and the back face of the liquid crystal view finder unit being formed with a battery attachment face, and a light unit having a light facing ahead at the upper portion thereof, the front face of the light unit being detachably mounted on the battery attachment face at the back of the video camera body, and the back face of the light unit being formed with a battery attachment face.

Inventors

  • 👤 Katsuya Inana

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 11:35
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/02; H; H04; H04N; H04N23/00; H04N23/50; H04N23/53; H04N23/531; H04N23/60; H04N23/66; H04N23/661; H04N5/00; H04N5/74; H04N5/7416; H04N5/7441; H04N9/00; H04N9/12; H04N9/31; H04N9/3141; H04N9/3173; H04N9/3176

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 306 words
A liquid crystal finder attached video camera, comprising: a video camera body having a first battery attachment face formed at the back thereof and a video output terminal for outputting a video signal, wherein on said first battery attachment face a battery may be detachably mounted; a liquid crystal view finder unit having a front face which may be detachably mounted on said first battery attachment face and a back face formed with a second battery attachment face on which said battery may be detachably mounted, said liquid crystal view finder unit comprising a video input terminal for inputting the video signal from said video output terminal, transmission-type liquid crystal display means for displaying an image based on the video signal input through said video input terminal, an eyepiece for magnifying the image displayed by said transmission-type liquid crystal display means, and a turning mechanism for turning said eyepiece between a finder position behind said transmission-type liquid crystal display means and a projector position ahead of said transmission-type liquid crystal display means; and a light unit having a front face which may be detachably mounted on said first or second battery attachment face, a back face formed with a third battery attachment face on which said front face of said liquid crystal view finder unit may detachably be mounted, and a light facing ahead in the upper portion thereof, wherein said eyepiece is turned to said finder position and said light unit is mounted between said video camera body and said liquid crystal view finder unit so as to use said light unit as a video light, and said eyepiece is turned to said projector position and said liquid crystal view finder unit is mounted between said video camera body and said light unit so as to use said light unit as a projector light source.
Claim 2
Dependent Claim 306 words
A liquid crystal finder attached video camera, comprising: a video camera body having a first battery attachment face formed at the back thereof and a video output terminal for outputting a video signal, wherein on said first battery attachment face a battery may be detachably mounted; a liquid crystal view finder unit having a front face which may be detachably mounted on said first battery attachment face and a back face formed with a second battery attachment face on which said battery may be detachably mounted, said liquid crystal view finder unit comprising a video input terminal for inputting the video signal from said video output terminal, transmission-type liquid crystal display means for displaying an image based on the video signal input through said video input terminal, an eyepiece for magnifying the image displayed by said transmission-type liquid crystal display means, and a turning mechanism for turning said eyepiece between a finder position behind said transmission-type liquid crystal display means and a projector position ahead of said transmission-type liquid crystal display means; and a light unit having a front face which may be detachably mounted on said first or second battery attachment face, a back face formed with a third battery attachment face on which said front face of said liquid crystal view finder unit may detachably be mounted, and a light facing ahead in the upper portion thereof, wherein said eyepiece is turned to said finder position and said light unit is mounted between said video camera body and said liquid crystal view finder unit so as to use said light unit as a video light, and said eyepiece is turned to said projector position and said liquid crystal view finder unit is mounted between said video camera body and said light unit so as to use said light unit as a projector light source.
Claim 3
Dependent Claim 89 words
A liquid crystal finder attached video camera according to claim 1, wherein said liquid crystal view finder unit comprises a magic mirror disposed with an inclination of approximately 45° in a position facing said eyepiece through said transmission-type liquid crystal display means, a back light for illuminating said transmission-type liquid crystal display means with light reflected by said magic mirror, and a window portion for passing illumination light from said light unit through said magic mirror and making the illumination light incident on said transmission-type liquid crystal display means.
Claim 4
Dependent Claim 51 words
A liquid crystal finder attached video camera according to claim 1, wherein said liquid crystal view finder unit is used as a small TV by attaching a TV tuner to said liquid crystal view finder unit and inputting a video signal from said TV tuner to said liquid crystal view finder.
Claim 5
Dependent Claim 64 words
A liquid crystal finder attached video camera according to claim 1, wherein said video camera body is remotely controlled by attaching a remote control unit to said liquid crystal view finder unit, separating said liquid crystal view finder unit from said first battery attachment face of said video camera body, and connecting said video output terminal and said video input terminal through a cord.

References Cited (Backward Citations)

US4816860A Cited
US4873576A Cited
JPH01115371A Cited
US4959729A Cited
US4969046A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-05-23 1997-11-22 1998-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-05-23 2001-11-22 2002-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-05-23 2005-11-22 2006-05-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag