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42results about How to "Good viewing angle" patented technology

A projection display system and method based on human eye tracking

The invention discloses a projection display system and method based on human eye tracking, which relates to the technical field of projection display, and aims to adjust projection image output on ascreen in real time by tracking eye point positions of audiences so as to enable the audiences to be always in an optimal viewing angle. The system comprises a projection unit, a screen, a position tracking unit, an induction glasses, a matching processing unit and a control unit, the induction glasses is connected with the position tracking unit, the position tracking unit and the matching processing unit are respectively connected with the control unit, and the control unit is connected with the projection unit; the position tracking unit is used for sensing the positions of eye points of audiences wearing the sensing glasses in real time; the matching processing unit is used for collecting optimal projection angle data of the projection units corresponding to the multiple eye point positions, and generating and storing matching data; and the control unit is used for correspondingly calling the corresponding optimal projection angle data from the matching data according to the received audience eye point position data so as to adjust the projection output angle of the projection unit.
Owner:BEIJING DANG HONG QI TIAN INT CULTURE DEV GRP CO LTD

Tiltable bed desk

The invention discloses a tiltable bed desk. The tiltable bed desk comprises a desktop, arc-shaped plates, L-shaped supporting rods, a heat dissipation box, arc-shaped holes, five-star handles, a plurality of heat dissipation holes, a fan blade installation shaft, fan blades, a wire and a USB interface. Two sides of the desktop are connected with the L-shaped supporting rods through screws. One end of each arc-shaped plate is hinged to one side of the desktop. The positions where one ends of the arc-shaped plates are hinged to one side of the desktop are located in front of the positions where the desktop is connected with the L-shaped supporting rods. A threaded hole is formed in one side of each L-shaped supporting rod. The five-star handles are installed in the threaded holes. The arc-shaped holes are formed in the arc-shaped plates. The five-star handles penetrate through the arc-shaped holes to connect the arc-shaped plates with the L-shaped supporting rods. The heat dissipation box is installed below the desktop. The fan blade installation shaft is installed in the heat dissipation box. The fan blades are installed on the fan blade installation shaft. A plurality of ventilation holes are formed in the lower side of the heat dissipation box. The round heat dissipation holes are formed in the desktop. According to the tiltable bed desk, the desktop can rotate by a certain angle, and in this way, distortion of a screen is avoided when a user lies; the tiltable bed desk is simple in structure, convenient to use and capable of being widely used and popularized.
Owner:潘秀娟

Lamp box mounting structure for exhibition hall design

The invention discloses a lamp box mounting structure for exhibition hall design. The lamp box mounting structure comprises a lamp box, a case body and a fixing block. The case body is slidably connected to one side of the lamp box. A box body is welded to the top of the case body. A lifting mechanism used for lifting the lamp box is arranged in the box body. The two ends of the side, away from the lamp box, of the case body are slidably connected with a first L-shaped rod and a second L-shaped rod correspondingly. The fixing block is located between the two opposite ends of the transverse edge of the first L-shaped rod and the transverse edge of the second L-shaped rod. A square through hole is formed in the side, close to the first L-shaped rod, of the fixing block. The transverse edgesof the first L-shaped rod and the second L-shaped rod are both connected into the square through hole in a sliding mode. A strip-shaped groove is formed in the side, away from the lamp box, of the case body. The vertical edges of the first L-shaped rod and the second L-shaped rod penetrate through the strip-shaped groove and are slidably connected into the case body. A moving mechanism used for moving the first L-shaped rod and the second L-shaped rod is arranged in the case body. The practicability of the lamp box is improved.
Owner:上海逊达建筑设计工程有限公司

Dual-purpose plant nameplate capable of being set up and suspended

The invention discloses a dual-purpose plant nameplate capable of being set up and suspended. The dual-purpose plant nameplate comprises a nameplate body and a supporting rod, the nameplate body is of a face structure and comprises a front face and a back face, a plurality of protrusions are arranged on the back face of the nameplate body to form a strip-shaped protrusion, and grooves are formed between the protrusions. A plurality of protrusions are arranged on the supporting rod, grooves are formed between the protrusions, and the supporting rod can be movably arranged on the back face of the nameplate body. When the supporting rod is moved, the protrusions on the supporting rod are in corresponding contact with the protrusions on the back face of the nameplate body, and the grooves in the supporting rod correspond to the grooves in the nameplate body to form closed through holes. The dual-purpose plant nameplate has the function of an existing suspended nameplate and the function of a ground inserting stick, and compared with the existing suspended nameplate, the fixing effect is better, damage to plants is smaller, and the observation and recording angle is better. The through holes are different in size, different calibers can be selected according to the size of the diameter of stems of the plants, and therefore straightening injuries of the nameplate to the stems of the plants are avoided.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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