1. A light guide member comprising:
a plurality of light guide sheets, each light guide sheet comprising:
a body having a curved shape;
a plurality of scattering particulates dispersed in the body;
a light exiting layer positioned on an outer surface of the body; and
a light reflecting layer positioned on an inner surface of the body,
wherein each light guide sheet further comprises two end surfaces and two side surfaces, and at least one of the end surfaces is used to guide light into the light guide sheet; and
wherein the light guide member is formed by the plurality of light guide sheets connected side by side through the side surfaces.
2. The light guide member according to claim 1, further comprises a plurality of adhesive layers, each of the adhesive layers being disposed between the side surfaces of adjacent light guide sheets respectively.
3. The light guide member according to claim 2, wherein the material of the adhesive layer comprises an optical adhesive.
4. The light guide member according to claim 1, wherein the body of each light guide sheet is of an arc shape or a free-curved shape.
5. The light guide member according to claim 4, wherein the scattering particulates are dispersed in the body in a manner that the distribution density gradually increases from an edge to a centre area of the body of light guide sheet when the body of the light guide sheet is of an arc shape.
6. The light guide member according to claim 1, wherein the scattering particulates comprise SiO2 particulates.
7. The light guide member according to claim 1, wherein the material of the body of the light guide sheet comprises any one of polymethyl methacrylate, polycarbonate and polyethylene terephthalate.
8. The light guide member according to claim 1, wherein the light reflecting layer comprises a silver coating or an aluminum coating.
9. The light guide member according to claim 1, wherein the light exiting layer comprises transparent optical coating or a frosted finish layer formed on the outer surface of the body of the light guide sheet.
10. A display device comprises:
a plurality of display panels that are connected together,
a frame to connect the plurality of display panels, and
at least one light guide member disposed above the frame between adjacent display panels, the light guide member comprising a plurality of light guide sheets, each light guide sheet comprising:
a body having a curved shape;
a plurality of scattering particulates dispersed in the body;
a light exiting layer positioned on an outer surface of the body; and
a light reflecting layer positioned on an inner surface of the body,
wherein each light guide sheet further comprises two end surfaces and two side surfaces, and at least one of the two end surfaces is used to guide light into the light guide sheets;
wherein the light guide member is formed by the plurality of light guide sheet connected side by side through the side surfaces, and
wherein the two end surfaces of each light guide sheet are positioned at two sides of the frame and contact display areas of adjacent display panels, respectively.
11. The display device according to claim 10, wherein the light guide member further comprises a plurality adhesive layers, each of the adhesive layers being disposed between the side surfaces of adjacent light guide sheets respectively.
12. The display device according to claim 11, wherein the material of the adhesive layer comprises an optical adhesive.
13. The display device according to claim 10, wherein the body of each light guide sheet is of an are shape or a free-curved shape.
14. The display device according to claim 13, wherein the scattering particulates are dispersed in the body in a manner that the distribution density gradually increases from an edge to a centre area of the body of light guide sheet when the body of the light guide sheet is of an arc shape.
15. The display device according to claim 10, wherein the scattering particulates comprise SiO2 particulates.
16. The display device according to claim 10, wherein the material of the body of the light guide sheet comprises any one of polymethyl methacrylate, polycarbonate and polyethylene terephthalate.
17. The display device according to claim 10, wherein the light reflecting layer comprises a silver coating or an aluminum coating.
18. The light guide member according to claim 10, wherein the light exiting layer comprises transparent optical coating or a frosted finish layer formed on the outer surface of the body of the light guide sheet.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A door control apparatus in electrical communication with an electromechanical door holder for operative connection to a hinged door, the electromechanical door holder including a door closer for applying a closing action to the hinged door and a solenoid disposed in the door closer operable to close a valve to prevent the flow of hydraulic fluid in the door closer to cause the hinged door to stay open, the hinged door being above a floor and pivotally movable over a range of open positions between a closed position and a fully open position and being releasable by a person manually opening the door at a release position anywhere in the range of open positions, and the door being mounted to a structure surrounding the door in the closed position, the structure including a door frame and a wall, the door control apparatus comprising:
control circuitry; and
a sensor adapted to detect a person, object, or both in a first designated area proximate to the door, the sensor connected to the control circuitry, wherein the sensor is operable to signal the control circuitry upon a detection event,
wherein upon a detection event the control circuitry is operable to signal the solenoid to close the valve and cause the electromechanical door holder to hold the door open at a release position that is variable and is not preset, such that the release position may automatically, without manually actuating a switch, be located at any position within the range of open positions of the door.
2. The door control apparatus of claim 1, further comprising a light emitter connected to the control circuitry, wherein upon a detection event the control circuitry is operable to signal the light emitter to produce light.
3. The door control apparatus of claim 2, wherein the light emitter is adapted to direct light to form an image on the floor in a second designated area, wherein when the second designated area is illuminated, the door is not in the process of closing.
4. The door control apparatus of claim 3, wherein the control circuitry is operable to signal the light emitter to change the light status a first predetermined time after the sensor detects nothing in the first designated area and is adapted to signal the electromechanical door holder to initiate door closing after a second predetermined time, with the first and second predetermined times being measured by a timer in the control circuitry.
5. The door control apparatus of claim 4, wherein the light status includes on, off, or flashing.
6. The door control apparatus of claim 2, wherein the light emitter includes a laser generator and the light is laser light.
7. The door control apparatus of claim 6, wherein the laser light image to be formed on the floor includes words, other indicia, or a combination thereof.
8. The door control apparatus of claim 2, wherein the light emitter includes a light emitting diode lamp.
9. The door control apparatus of claim 2, further comprising a housing in which the control circuitry, light emitter, and sensor are disposed, wherein the housing is adapted to be mounted to the structure adjacent to the door.
10. The door control apparatus of claim 9, further comprising a mounting member disposed in the housing, wherein the control circuitry, light emitter, and sensor are mounted to the mounting member.
11. The door control apparatus of claim 10, wherein the mounting member comprises a printed circuit board.
12. The door control apparatus of claim 10, wherein the mounting member is mounted to the housing with adjustable fastener components at a plurality of locations that allow varying the angle of the mounting member relative to the housing.
13. The door control apparatus of claim 12, wherein the mounting member is substantially a rectangle and the plurality of locations comprises four locations with each location substantially in a corner of the substantially rectangular mounting member.
14. The door control apparatus of claim 1, further comprising a sound emitter connected to the control circuitry, wherein the control circuitry is selectively operable to signal the sound emitter to produce sound.
15. The door apparatus of claim 1, further comprising a timer and wherein the control circuitry is operable to signal the timer to start upon a detection event and after a predetermined time after the sensor detects nothing to signal the solenoid to open the valve and cause the electromechanical door holder to initiate door closing.
16. The door control apparatus of claim 1, wherein after a predetermined time following a detection event during which there is no further detection event, the control circuitry is operable to signal the solenoid to open the valve and allow the electromechanical door holder to close the door from the variable release position.
17. The door control apparatus of claim 1, wherein the detection event is a first detection event and upon a subsequent second detection event the control circuitry is operable to signal the solenoid to close the valve and cause the electromechanical door holder to hold the door open at a second release position that is variable, is not preset, and may automatically be located at any position within the range of open positions at the release position.
18. A door motion controller for applying force to a hinged door, the hinged door being above a floor and pivotally movable over a range of open positions between a closed position and a fully open position, being released by a person manually opening the door to a release position anywhere in an open position, and being mounted to a structure surrounding the door in the closed position, the structure including a door frame and a wall, comprising:
an electromechanical door holder adapted to operatively connect to the hinged door, the electromechanical door holder including a door closer for applying a closing action to the hinged door and a solenoid disposed in the door closer and operable to close a valve to prevent the flow of hydraulic fluid in the door closer to cause the hinged door to stay open; and
a door control apparatus adapted to be in electrical communication with the electromechanical door holder, the door control apparatus comprising:
control circuitry; and
a sensor adapted to detect a person, object, or both in a first designated area proximate to the door, the sensor connected to the control circuitry, wherein the sensor is operable to signal the control circuitry upon a detection event,
wherein upon a detection event the control circuitry is operable to signal the solenoid to close the valve and cause the electromechanical door holder to hold the door open at a release position that is variable and is not preset, such that the release position may automatically, without manually actuating a switch, be located at any position within the range of open positions of the door.
19. The door motion controller of claim 18, further comprising a light emitter connected to the control circuitry, wherein upon a detection event the control circuitry is operable to signal the light emitter to produce light.
20. The door motion controller of claim 19, wherein the light emitter is adapted to direct light to form an image on the floor in a second designated area wherein when the second designated area is illuminated, the door is not in the process of closing.
21. The door motion controller of claim 20, wherein the control circuitry is operable to signal the light emitter to change the light status a first predetermined time after the sensor detects nothing in the first designated area and operable to signal the electromechanical door holder to initiate door closing after a second predetermined time, with the first and second predetermined times being measured by a timer in the control circuitry.
22. The door motion controller of claim 21, wherein the light status includes on, off, or flashing.
23. The door motion controller of claim 20, wherein the light emitter includes a laser generator and the light is laser light.
24. The door motion controller of claim 23, wherein the laser light image to be formed on the floor includes words, other indicia, or a combination thereof.
25. The door motion controller of claim 20, wherein the light emitter includes a light emitting diode lamp.
26. The door motion controller of claim 20, further comprising a housing in which the control circuitry, light emitter, and sensor are disposed, wherein the housing is adapted to be mounted to the structure adjacent to the door.
27. The door motion controller of claim 26, further comprising a mounting member disposed in the housing, wherein the control circuitry, light emitter, and sensor are mounted to the mounting member.
28. The door motion controller of claim 27, wherein the mounting member comprises a printed circuit board.
29. The door motion controller of claim 27, wherein the mounting member is mounted to the housing with adjustable fastener components at a plurality of locations that allow varying the angle of the mounting member relative to the housing.
30. The door motion controller of claim 29, wherein the mounting member is substantially a rectangle and the plurality of locations comprises four locations with each location substantially in a corner of the substantially rectangular mounting member.
31. The door motion controller of claim 18, further comprising a sound emitter connected to the control circuitry, wherein the control circuitry is selectively operable to signal the sound emitter to produce sound.
32. The door motion controller of claim 18, wherein the door control apparatus further comprises a timer and wherein the control circuitry is operable to signal the timer to start upon a detection event and after a predetermined time after the sensor detects nothing to signal the solenoid to open the valve and cause the electromechanical door holder to initiate door closing.
33. The door motion controller of claim 18, wherein after a predetermined time following a detection event during which there is no further detection event, the control circuitry is operable to signal the solenoid to open the valve and allow the electromechanical door holder to close the door from the variable release position.
34. A method of operating a hinged door using an electromechanical door holder, the electromechanical door holder including a door closer for applying a closing action to the hinged door and a solenoid disposed in the door closer and-operable to close a valve to prevent the flow of hydraulic fluid in the door closer to cause the hinged door to stay open, the hinged door being above a floor and pivotally movable over a range of open positions between a closed position and a fully open position, being released by a person manually opening the door to a release position anywhere in an open position, and being mounted to a structure surrounding the door in the closed position, the structure including a door frame and a wall, the method comprising:
a sensor detecting a person, object, the door moving to an open position, or any combination thereof in a first designated area, the sensor signaling the control circuitry;
a timer in the control circuitry starting;
the control circuitry signaling the solenoid to close the valve and cause the electromechanical door holder to hold the door open; and
the electromechanical door holder maintaining the door in an open position at least for a set period at a release position that is variable and is not preset, such that the release position may automatically, without manually actuating a switch, be located at any position within the range of open positions of the door.
35. The method of claim 34, further comprising the control circuitry signaling a light emitter to produce light and the light emitter directing light to form an image on a second designated area on the floor.
36. The method of claim 35, wherein the electromechanical door holder with the door closer includes at least one spring, the control circuitry signaling the electromechanical door holder to hold the door open comprises the control circuitry signaling the electromechanical door holder to energize the solenoid to actuate a valve in the door closer, and the electromechanical door holder holding the door open comprises the electromechanical door holder holding the door open proximate to the position at which the door was released, and further comprising:
energizing the solenoid after the electromechanical door holder receives a signal from the control circuitry;
the sensor continuing to detect a person or object in the first designated area and signaling the control circuitry to keep the solenoid energized;
when the sensor detects nothing in the first designated area, ceasing signaling the control circuitry;
if the sensor again detects a person or object in the first designated area, the sensor signaling the control circuitry, and the control circuitry signaling the electromechanical door holder to keep the solenoid energized; and
if the sensor detects nothing in the first designated area by the end of the set period, the control circuitry signaling the electromechanical door holder to initiate closing of the door.
37. The method of claim 34, further comprising:
the sensor continuing to detect a person or object in the first designated area and signaling the control circuitry to keep the door open;
when the sensor detects nothing in the first designated area, ceasing signaling the control circuitry;
if the sensor detects a second person in the first designated area with the door being released by the second person to a second release position anywhere in an open position, the sensor signaling the control circuitry, and the control circuitry signaling the electromechanical door holder to keep the door open at the second release position;
if the sensor detects nothing in the first designated area by the end of the set period, the control circuitry signaling the electromechanical door holder to initiate closing of the door from the second release position.
38. The method of claim 34, further comprising:
the sensor continuing to detect a person or object in the first designated area and signaling the control circuitry to keep the door open;
when the sensor detects nothing in the first designated area, ceasing signaling the control circuitry;
if the sensor again detects a person or object in the first designated area, the sensor signaling the control circuitry, and the control circuitry signaling the electromechanical door holder to keep the door open;
if the sensor detects nothing in the first designated area by the end of the set period, the control circuitry signaling the electromechanical door holder to initiate closing of the door from the variable release position.
39. A door assembly, the assembly being positioned above a floor proximate to a structure including a door frame and wall, comprising:
a hinged door pivotally movable over a range of open positions between a closed position and a fully open position, being released by a person manually opening the door to a release position anywhere in an open position, and being mounted to the structure surrounding the door;
an electromechanical door holder operatively connected to the hinged door; the electromechanical door holder including a door closer for applying a closing action to the hinged door and a solenoid operable to close a valve to prevent the flow of hydraulic fluid in a reservoir to cause the hinged door to stay open, and
a door control apparatus in electrical communication with the door motion device comprising:
control circuitry; and
a sensor adapted to detect a person, object, or both in a first designated area proximate to the door, the sensor connected to the control circuitry, wherein the sensor signals the control circuitry upon a detection event,
wherein upon a detection event the control circuitry signals the solenoid to close the valve and cause the electromechanical door holder to hold the door open at a release position that is variable and is not preset, such that the release position may automatically, without manually actuating a switch, be located at any position within the range of open positions of the door.
40. The door assembly of claim 39, wherein the door control apparatus further comprises a timer and wherein the control circuitry is operable to signal the timer to start upon a detection event and after a predetermined time after the sensor detects nothing to signal the solenoid to open the valve and cause the electromechanical door holder to initiate door closing.
41. The door assembly of claim 39, wherein after a predetermined time following a detection event during which there is no further detection event, the control circuitry is operable to signal the solenoid to open the valve and allow the electromechanical door holder to close the door from the variable release position.
42. A door motion controller for applying force to a hinged door, the hinged door being above a floor and pivotally movable over a range of open positions between a closed position and a fully open position, being released by a person manually opening the door to a release position anywhere in an open position, and being mounted to a structure surrounding the door in the closed position, the structure including a door frame and a wall, comprising:
an electromechanical door holder adapted to operatively connect to the hinged door, the electromechanical door holder comprising:
a door closer for applying a closing action to the hinged door;
hydraulic fluid disposed in the door closer;
a valve disposed in the door closer to control flow of hydraulic fluid;
a solenoid disposed in the door closer and operably connected to the valve and operable to close the valve to prevent the flow of hydraulic fluid in the door closer to cause the hinged door to stay open; and
a door control apparatus adapted to be in electrical communication with the electromechanical door holder, the door control apparatus comprising:
control circuitry; and
a sensor adapted to detect a person, object, or both in a first designated area proximate to the door, the sensor connected to the control circuitry, wherein the sensor is operable to signal the control circuitry upon a detection event,
wherein upon a detection event the control circuitry is operable to signal solenoid to close the valve and cause the electromechanical door holder to hold the door open at a release position that is variable and is not preset, such that the release position may automatically, without manually actuating a switch, be located at any position within the range of open positions of the door.