Projection type television having a movable reflective mirror
First Claim
Patent Images
1. A projection-type television comprising:
- a projection tube for projecting images;
a projection lens group having at least one projection lens for enlarging images;
a reflective mirror for reflecting the projected images;
a screen on which the images are displayed;
guide means for moving said reflective mirror perpendicularly with respect to the screen;
whereinsaid guide means includes guide rails, and moving plates which are moved along said guide rails and on which said reflective mirror is fixedly installed; and
whereina position-determining pin is elastically installed via a spring on either of said guide rails to stop the reflective mirror at a predetermined focus distance from the screen, and a groove is installed on either of said moving plates, by which said position-determining pin is connected.
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Abstract
A projection-type television having a movable reflective mirror provides a simple structure having a pleasing external appearance. A reflective mirror for reflecting images is movably installed on a guider so as to be moved back and forth by the guider in a perpendicular direction with respect to a screen on which the images are displayed.
22 Citations
1 Claim
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1. A projection-type television comprising:
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a projection tube for projecting images; a projection lens group having at least one projection lens for enlarging images; a reflective mirror for reflecting the projected images; a screen on which the images are displayed; guide means for moving said reflective mirror perpendicularly with respect to the screen;
whereinsaid guide means includes guide rails, and moving plates which are moved along said guide rails and on which said reflective mirror is fixedly installed; and
whereina position-determining pin is elastically installed via a spring on either of said guide rails to stop the reflective mirror at a predetermined focus distance from the screen, and a groove is installed on either of said moving plates, by which said position-determining pin is connected.
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Specification
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Current AssigneeSamsung Electronics Co. Ltd.
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Original AssigneeSamsung Electronics Co. Ltd.
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InventorsLee, Yong-hoon
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Primary Examiner(s)Cuchlinski, Jr., William A.
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Assistant Examiner(s)Dowling, William C.
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Application NumberUS08/147,281Time in Patent Office529 DaysField of Search353/74, 353/75, 353/76, 353/77, 353/78, 353/79, 353/98, 353/99, 353/119, 353/72, 353/71, 358/231, 358/237, 358/254, 358/60, 359/460, 359/456, 359/449, 348/789, 348/794, 348/836, 348/839US Class Current353/77CPC Class CodesH04N 5/7408 Direct viewing projectors, ...H04N 9/3141 Constructional details ther...
