Projection television set
AssigneePioneer Electronic Corporation
InventorsTakashi Furuno, Toshiya Wakasa, Jun Iizuka, Kanehiro Hagiwara, Mitsuyoshi Mitake
Life of this patent
Estimating the term…
Abstract
A projection television set in which a seamless image may be obtained on a screen. A screen plate of a screen assembly is held under a suspended state by a frame in a state wherein the left and right parts are centered in the frame. A cruciform light-shielding frame is mounted on the frame. A light-shielding plate is swingably mounted on a horizontal light-shielding frame of the frame. The position of the light shielding plate is adjusted in response to the vertical movement of a horizontal joint. Also, the horizontal joint line adjusting mechanism is provided independently of a centering mechanism for a vertical joint line.
Claims15
A projection television set comprising:
- a body casing having a front face;
- and
- a screen assembly provided at the front face of said body casing, said screen assembly including a screen composed of at least two right-and-left divided Fresnel lenses joined together and a lenticular sheet, a frame for defining a periphery of said screen, a screen support member mounted along an upper edge of said screen, and a screen suspension member engaged with said screen support member for supporting said screen to said frame,
- wherein a first center engagement section is formed at a position of the screen support member corresponding to a joint line for right and left parts of the screen;
- a second center engagement section of said screen suspension member is engaged with said first center engagement section of said screen support member;
- and a first centering section of the screen support member formed corresponding to said second center engagement section of said screen suspension member is in alignment with a second centering section formed in an upper central side of said frame.
A projection television set comprising:
- a body casing having a front face;
- and
- a screen assembly provided at the front face of said body casing, said screen assembly including a joint screen having at least a vertical joint line, a frame for defining a periphery of said joint screen, a cruciform light-shielding frame mounted on the screen, said light-shielding frame having a horizontal light-shielding frame member having a light-shielding plate, and a light-shielding plate adjusting means for adjusting a position of said light-shielding plate;
- wherein said joint screen of the screen assembly is supported under a suspended condition to said frame of the screen assembly while centering the vertical joint line with a center of said frame;
- and said light-shielding plate is adjustably mounted on at least the horizontal light-shielding frame of the light-shielding frame so that the light-shielding plate is in alignment with the joint line of the screen.
A projection television set comprising:
- a body casing having a front face;
- and
- a screen assembly provided at the front face of said body casing, said screen assembly including a screen composed of at least two right-and-left divided Fresnel lenses joined together and a lenticular sheet, a frame for defining a periphery of said screen, a screen support member mounted along an upper edge of said screen, a screen suspension member engaged with said screen support member for supporting said screen to said frame, a cruciform light-shielding frame mounted on the screen, said light-shielding frame having a horizontal light-shielding frame member having a light-shielding plate, and a light-shielding plate adjusting means for adjusting a vertical position of said light-shielding plate independently of its horizontal position;
- wherein a first center engagement section is formed at a position of the screen support member corresponding to a vertical joint line for right and left parts of the screen;
- a second center engagement section of said screen suspension member is engaged with said first center engagement section of said screen support member;
- a first centering section of the screen support member formed corresponding to said second center engagement section of said screen suspension member is in alignment with a second centering section formed in an upper central side of said frame;
- and said light-shielding plate is adjustably mounted on at least the horizontal light-shielding frame of the light-shielding frame so that the light-shielding plate is in alignment with the horizontal joint line of the screen.
Dependencies are inferred from the claim text.