CN111265006B - Backlight desk for designing hand painting and hand making - Google Patents

Backlight desk for designing hand painting and hand making Download PDF

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Publication number
CN111265006B
CN111265006B CN202010103829.XA CN202010103829A CN111265006B CN 111265006 B CN111265006 B CN 111265006B CN 202010103829 A CN202010103829 A CN 202010103829A CN 111265006 B CN111265006 B CN 111265006B
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China
Prior art keywords
light
plate
cover plate
hand
backlight
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CN202010103829.XA
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Chinese (zh)
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CN111265006A (en
Inventor
景芳芳
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Zhengzhou Business University
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Zhengzhou Business University
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Priority to CN202010103829.XA priority Critical patent/CN111265006B/en
Publication of CN111265006A publication Critical patent/CN111265006A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00—Details of tables or desks
    • A47B13/08—Table tops; Rims therefor
    • A47B13/12—Transparent tops, e.g. with lighting means under the table top
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00—Details of tables or desks
    • A47B13/08—Table tops; Rims therefor
    • A47B13/081—Movable, extending, sliding table tops
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B27/00—Drawing desks or tables; Carriers for drawing-boards
    • A47B27/02—Adjustable drawing tables without balancing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0012—Furniture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/08—Refractors for light sources producing an asymmetric light distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/301—Lighting for domestic or personal use for furniture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The scheme adopts the light equalizing plate to realize light redistribution by utilizing the principle of light diffraction, further strengthens the light dispersion through the light diffusion layer, realizes softer light, and can avoid the problems that eyes which lay down the table for drawing and tracing for a long time under a direct light source are easy to fatigue and dizziness; in addition, the light ray in the scheme avoids the shadow problem in the tracing from bottom to top, and the adjustable angle of the desktop is more convenient for the drawing work; the technical scheme can be used for a platform for handheld production, a large amount of details are required in the handheld production process, the vivid lines need to be drawn carefully for a long time, the cover plate can be opened and fixed at an inclined angle during handheld production, the reflector can be arranged at the back of the cover plate, the structure that light rays at the light-transmitting plate are projected to the side face of the handheld production is realized, observation on the side face of the handheld production is facilitated, and the cover plate is used as a background to realize lighting operation of the handheld production.

Description

Backlight desk for designing hand painting and hand making
Technical Field
The invention relates to a tool for assisting drawing or design, in particular to a backlight table for designing hand drawing and hand making.
Background
In the drawing work, when tracing practice, white tracing and pattern duplication are needed, the existing picture scroll and the existing pattern are required to be covered for tracing operation, the position between the upper layer paper and the lower layer original picture must be relatively fixed in the tracing operation process, and otherwise, the problem of inaccurate pattern misplacement tracing can occur. The traditional method is that upper and lower papers are fixed by fixing tools such as drawing pins, but the time for tracing complex patterns is usually long, and the time is usually days or even months, the paper at the position of the drawing pin is easy to tear during long-term tracing, and then the paper position falls off, and the surface abrasion of the lower pattern is also easy to cause due to frequent friction between the upper layer paper and the lower pattern. The traditional method is to press the pattern by using transparent glass, the method greatly reduces the abrasion probability of the pattern and is relatively easy to fix, but the method still has a great disadvantage in the actual operation, the pattern content can be clearly shown only by using thin paper in the process of tracing, but the upper body is required to lie on the table surface in the process of actually tracing the pattern, and the pattern display is influenced by the shadow formed by the upper body, so the method still has great limitation in the actual operation.
There is also a method of providing an auxiliary light at the desk top, but there is no effective solution to the shadow at the arm in the actual operation.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention firstly provides a backlight table for designing hand-drawing, which solves the problems that the tracing location is inaccurate and is easy to shift, and the light shadow is easy to cause to influence the clear display of the pattern in the existing drawing process.
The technical scheme is that the table comprises a table top, wherein the table top is configured to be provided with a built-in linear light source for generating white light, the surface of the table top is configured to be matched and provided with a cover plate made of a transparent material, and a movable connecting structure is arranged between the cover plate and the table top to form a structure that the cover plate can be opened and paper can be placed between the cover plate and the table top; the device comprises a backlight device fixedly connected with a desktop, and also comprises a point light source which is positioned below the backlight device, fixedly connected and arranged along the extension direction of the desktop plane and consists of a plurality of adjacent lamp beads, wherein the adjacent point light sources are linearly arranged to form the linear light source; the backlight device comprises a light-transmitting plate made of transparent materials and a light-homogenizing device, wherein the light-homogenizing device comprises a light-homogenizing plate made of non-light-transmitting materials and arranged in parallel with the light-transmitting plate in a spaced mode, a plurality of slits arranged in an array are formed in the light-homogenizing plate, the length of each slit is matched with the arrangement of the rows or lines of point light sources, a light blocking band corresponding to the linear light sources is further arranged, the width of the light blocking band is matched with the width of the point light sources to form a structure for shielding the point light sources, the distance between the light-homogenizing plate and the light-transmitting plate is defined as L, the slits are respectively arranged between the adjacent light blocking bands and are different in width, structures with different light intensities passing through the adjacent slits are formed, the distance between the adjacent slits is the same and is defined as D, and light rays emitted by the linear light sources are diffracted through the plurality of slits and form structures with uniform light intensity distribution in the light-transmitting plate.
In the above or some embodiments, the inner side surface of the light-transmitting plate is further fixedly provided with a light diffusion layer, and the light uniformizing layer is uniformly coated and fixed on the inner side surface of the light-transmitting plate by using a light diffusing agent.
In the above or some embodiments, the conventional inorganic light diffuser, i.e., calcium carbonate micro beads, barium sulfate, silicon dioxide, etc., the organic type LED light diffuser, i.e., silicone resin light diffuser, styrene type light diffuser, acrylic type light diffuser.
In the above or some implementations, each of the point light sources is an LED lamp bead, the wavelength range of each of the LED lamp beads is the same, the lighting device further includes a lamp strip for packaging the LED light source, the plurality of lamp strips are parallelly and fixedly arranged at intervals to form the linear light source, the slit is located in a gap between adjacent lamp strips, and the light blocking strip is located at a position right corresponding to the lamp strip.
In the above or some embodiments, each of the light strips further includes a wire slot located below the light strip, heat conducting members made of a heat conducting material are respectively disposed on two sides of the wire slot, each of the heat conducting members is disposed along a length direction of the light strip and integrally disposed with the light strip, each of the heat conducting members includes a cylinder vertically extending to an upper surface of the light strip, and further includes a base located on a lower surface of the light strip, a heat dissipation plate made of a heat conducting material is fixedly disposed at a lower end of the base, the heat dissipation plate is a plate-shaped structure including a plurality of heat dissipation holes arranged in an array, and the heat dissipation plate is parallel to the light transmission plate.
In the above or some embodiments, the heat dissipation plate is fixedly connected to the base of each of the heat conducting members, and the heat dissipation holes are rectangular holes arranged in a matrix.
In the aforesaid or some embodiments, the desktop still includes fixed frame, light-passing board, even worn-out fur, the mutual parallel arrangement of heating panel, fixed frame is including being used for enclosing the side frame of establishing along light-passing board, even worn-out fur, heating panel outer peripheral face, the side frame inboard is equipped with the flange structure that is used for the location and fixes light-passing board, even worn-out fur, still includes the shirt rim structure that inwards extends that is located the heating panel below, the shirt rim structure sets up along the border department of heating panel lower surface, forms the structure of the louvre and the external intercommunication of heating panel.
In the above or some embodiments, a turning device is disposed between the cover plate and the fixed frame, the turning device includes torsion arm springs disposed at two sides of the desktop, a pivot formed by extending downward at an edge of one end of the cover plate, a blind hole for rotationally matching the pivot is disposed on the side frame, torsion spring holes are disposed at an end surface of the pivot and an end surface of the blind hole, each torsion spring hole is provided with a long hole for mounting a torsion arm, and two ends of the torsion arm spring extend into the torsion spring respectively to form a structure in which the cover plate is turned upward under the elastic force of the torsion arm spring; and a locking device matched with the side frame is arranged at the other end of the cover plate to form a structure that the cover plate covers the rear cover plate and is locked with the side frame through the locking device.
In the above or some embodiments, the pivot is a rectangular block structure with an arc end, the blind hole includes a sliding section and a rotating section connected to the sliding section, the rotating section is in arc transition with the sliding section, a torsion spring hole located at the side frame is a slotted slide hole, so as to form a structure in which a torsion arm spring slides along the sliding section along the pivot and rotates at the rotating section, the locking structure includes a lock groove located at the side frame, and a lock catch is arranged at the lower edge of the corresponding cover plate, so as to form a structure in which the lock catch and the lock groove form an insertion connection after the pivot slides into the sliding section along the sliding section.
In last or some embodiments, the below of desktop still is equipped with the table tripe, the table tripe is enclosed to establish by plate structure and forms open or half open cavity structure, the table tripe still rotates and is connected with the support frame, the support frame with the table tripe passes through adjustable resistance's damping axle fixed connection.
In the above or some embodiments, the damping shaft includes the canned paragraph with table tripe fixed connection, still include with support frame fixed connection damping section, the damping section is located and forms the canned paragraph between the canned paragraph and overcome the relative pivoted structure of resistance, be equipped with the damping structure between damping section and the canned paragraph.
In the foregoing or some embodiments, the rotating section and the fixing section are both of variable-diameter hollow cylindrical structures, the fixing section includes a countersunk screw located at the head of the fixing section and in running fit with the fixing section, and further includes an adjusting friction shaft located at the other end of the fixing section, the adjusting friction shaft is in sliding fit with the inner wall of the fixing section through a spline, one end of the adjusting friction shaft is in running fit with a screw thread to form a structure that the axial movement of the adjusting friction shaft is changed through the running of the countersunk screw thread, the other end of the adjusting friction shaft is provided with concentric annular friction teeth, the friction teeth form a wedge-shaped annular groove, a driven shaft in running fit with the friction shaft is correspondingly arranged in the rotating section, the driven shaft is provided with driven teeth engaged with the friction teeth, when the friction teeth are far away from or close to the driven shaft, a structure that the friction shaft and the driven shaft are in close contact or separate from the friction contact through the wedge-shaped annular groove is formed between the friction shaft and the driven shaft, one end of the driven shaft penetrates into the rotating section and forms a rotation stopping fit with the rotating section, the driven shaft includes a rotation stopping hole, and the rotating section is provided with an inserting shaft inserted into a rotation stopping structure that is inserted into the rotation stopping hole.
Compared with the prior art, the scheme adopts the light equalizing plate to realize the redistribution of light rays by utilizing the principle of light ray diffraction, further strengthens the dispersion of the light rays through the light diffusion layer, realizes softer light rays, and can avoid the problems that eyes which lay down a table for drawing and tracing under a direct light source for a long time are easy to fatigue and vertigo; in addition, the light ray in the scheme avoids the shadow problem in the tracing from bottom to top, and the adjustable angle of the desktop is more convenient for the drawing work; the technical scheme can be used for a platform for handheld production, a large amount of details are required in the handheld production process, the vivid lines need to be drawn carefully for a long time, the cover plate can be opened and fixed at an inclined angle during handheld production, the reflector can be arranged at the back of the cover plate, the structure that light rays at the light-transmitting plate are projected to the side face of the handheld production is realized, observation on the side face of the handheld production is facilitated, and the cover plate is used as a background to realize lighting operation of the handheld production.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic side view of a desktop according to the present invention.
Fig. 3 is a schematic view of an installation structure of the torsion arm spring according to the present invention.
Fig. 4 is a schematic structural view of a linear light source formed by the light strip of the present invention.
Fig. 5 is a schematic structural diagram of a desktop according to the present invention.
Fig. 6 is a schematic structural view of the heat dissipating plate of the present invention.
Fig. 7 is a schematic structural view of a lamp segment according to the present invention.
Fig. 8 is a schematic structural view of a damping shaft according to the present invention.
Fig. 9 is an enlarged view of a portion a of fig. 2.
Detailed Description
The following detailed description is made with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The technical scheme includes that the desktop 100 comprises the desktop 100, the desktop 100 is provided with a cover plate 101 made of a transparent material such as an acrylic or toughened glass material, a matched structure is formed between the cover plate 101 and the desktop 100, a structure that the cover plate 101 can be opened relative to the desktop 100 or turned relative to the edge of the desktop 100 is formed, a structure that a pattern can be placed between the cover plate 101 and the desktop 100 is formed, preferably, a turning device is arranged between the cover plate 101 and a fixing frame 108, the turning device comprises torsion arm springs respectively arranged at two sides of the desktop 100, a pivot 101a formed by downward extending of the edge of one end of the cover plate 101, a blind hole 101b used for rotatably matching the pivot 101a is formed in a side frame, torsion spring holes 101c are respectively arranged at the end face of the pivot 101a and the end face of the blind hole 101b, each torsion spring hole 101c is respectively provided with a long hole used for installing a torsion arm, two ends of the torsion arms respectively extend into a torsion spring, a structure that the cover plate 101 turns upwards under the elastic force of the torsion arm springs is formed, a locking device matched with the side frame is arranged at the other end of the cover plate 101, and the locking structure that the side frame are covered by the cover plate 101.
In the above or some embodiments, the pivot 101a may be configured as a rectangular block structure with an arc end, the blind hole 101b includes a sliding section 101b1 and a rotating section 101b2 connected to the sliding section 101b1, the rotating section 101b2 is in arc transition with the sliding section, the torsion spring hole 101c at the side frame is a slotted slide hole, so as to form a structure in which the torsion arm spring slides along the sliding section along the pivot 101a and rotates at the rotating section 101b2, the locking structure includes a lock slot at the side frame, and a lock catch is correspondingly arranged at the lower edge of the cover plate 101, so as to form a structure in which the lock catch and the lock slot form an insertion connection after the pivot 101a slides into the lock slot along the sliding section.
In the above or some embodiments, a table belly 109 is further arranged below the table top 100, the table belly 109 is a cavity structure surrounded by a plate-shaped structure to form an open or semi-open structure, the table belly 109 is further rotatably connected with a support frame 110, and the support frame 110 is fixedly connected with the table belly 109 through the damping shaft 200 capable of adjusting resistance.
In the above or some embodiments, the damping shaft 200 includes a fixing section 201 fixedly connected to the table top 109, and further includes a damping section 202 fixedly connected to the supporting frame 110, the damping section 202 is located between the fixing sections 201 to form a structure that the fixing sections relatively rotate against resistance, and a damping structure is arranged between the damping section 202 and the fixing ends; the rotating section and the fixing section are both of variable-diameter hollow cylindrical structures, the fixing section 201 comprises a countersunk screw 203 which is positioned at the head of the fixing section 201 and is in rotating fit with the fixing section 201, the countersunk screw comprises a threaded section and an optical axis section, the optical axis section is provided with a recessed sliding ring, the corresponding fixing section is provided with a fastening screw, the lower end of the fastening screw sinks into the sliding ring to form a structure that the countersunk screw can rotate and axially form a positioning, the fixing section further comprises an adjusting friction shaft 204 which is positioned at the other end in the fixing section 201, the adjusting friction shaft 204 is in sliding fit with the inner wall of the fixing section 201 through a spline, one end of the adjusting friction shaft 204 is in threaded fit with the screw to form a structure that the adjusting friction shaft 204 axially moves through the threaded movement of the countersunk screw 203, the other end of the adjusting friction shaft 204 is provided with concentric annular friction teeth 205, the friction teeth form a wedge-shaped annular groove, a driven shaft 206 which is in friction fit with the friction shaft is correspondingly arranged in the rotating section 101b2, the driven shaft 206 is provided with driven teeth 207 which are engaged with the friction teeth, when the friction teeth are relatively far away from or close to the driven shaft 206, the driven shaft 206 is in contact with the wedge-shaped annular groove 206, and the rotating stop shaft 206 b2 b is inserted into the rotating section, and the rotating section is inserted into the rotating section 101b2, and the rotating stop structure, and the rotating section 101b2 b is inserted into the rotating section, and the rotating section 101b2, and the rotating stop structure, and the rotating section is inserted into the rotating section 206.
In the above or some embodiments, the backlight device, which is located below the cover plate 101 and exists as a part of the desktop 100, includes a light-transmitting plate 102 made of a transparent material, where the light-transmitting plate 102 forms a planar structure of the desktop 100 through fixed cooperation with a side frame, and further includes a light-equalizing device located below the backlight device and parallel to the light-transmitting plate 102, where the light-equalizing device includes a light-equalizing plate 103 made of a non-transparent material and arranged parallel to the light-transmitting plate 102 at a distance from the light-transmitting plate 102, a distance between the light-equalizing plate 103 and the light-transmitting plate 102 is defined as L, each slit 103a is located between adjacent light-blocking bands 103b, and widths of adjacent slits 103a are different, so as to form structures with different light intensities passing through adjacent slits 103a, and a distance between adjacent slits 103a is defined as D, light emitted by the linear light source is diffracted by the plurality of slits 103a and forms a structure with uniform distribution in the light-transmitting plate 102, light emitted by the linear light-blocking bands 103b of the LED cannot be directly transmitted to a lower side of the light-transmitting plate 102, and light is diffracted by the slits 103a geometric light-diffusing layer 104, so that the light is diffracted and is scattered to form a light-scattered, and the light-scattered layer. In an embodiment, according to the theory of multi-slit interference fringes, no obvious interference fringes can occur in mixed light interference due to different light intensities and different frequencies, but the interference phenomenon is still abundant, the barrier of light rays bypassing the light blocking band 103b breaks through the shadow area of the light blocking band 103b to realize the technical effect of preventing the shadow area from appearing, and meanwhile, each adjacent light source can generate the diffraction phenomenon, so that the technical effect of dispersing the light rays of the light sources from new to make the light rays softer is realized; the desktop 100 further comprises a fixing frame 108, the light-transmitting plate 102, the light-equalizing plate 103 and the heat-dissipating plate 107 are arranged in parallel, the fixing frame 108 comprises a side frame 108a used for surrounding the outer peripheral surfaces of the light-transmitting plate 102, the light-equalizing plate 103 and the heat-dissipating plate 107, a flange structure used for positioning and fixing the light-transmitting plate 102 and the light-equalizing plate 103 is arranged on the inner side of the side frame 108a, the fixing frame further comprises an inwardly extending skirt structure 108b located below the heat-dissipating plate 107, and the skirt structure 108b is arranged along the edge of the lower surface of the heat-dissipating plate 107 to form a structure that the heat-dissipating holes of the heat-dissipating plate 107 are communicated with the outside.
In the above or some embodiments, the linear light source generating white light, the point light source arranged along the extension direction of the plane of the desktop 100 and composed of a plurality of adjacent light beads, each adjacent point light source being linearly arranged to form the linear light source, each point light source being an LED light bead 105, preferably 0603, the model of each point light source being selectable, and being converted into 1608, i.e. the length of the LED element is 1.6mm, the width of the LED element is 0.8mm, 1608 for short in the industry, and 0603 for the english nomenclature; the number of the columns of the LED light sources can be set according to the selection of light intensity, the LED light sources can be in a single-column structure or a multi-column structure arranged in close proximity, the wavelength range of each LED lamp bead 105 is the same, white light is composite light and is formed by multiple monochromatic light rechecks, so that the light generated by each light source cannot generate obvious interference fringes, the LED lamp further comprises a lamp strip 106 for packaging the LED lamp source, the lamp strips 106 are fixedly arranged in parallel at intervals to form the linear light source, a plurality of slits 103a arranged in an array are arranged on the light-equalizing plate 103, the length of each slit 103a is matched with the arrangement of the point light sources in each column or row, a light-blocking strip 103b corresponding to the linear light source is further arranged, the width of the light-blocking strip 103b is adapted to the width of the point light source to form a structure for shielding the point light source, the slits 103a are positioned at the gaps of the adjacent lamp strips 106, and the light-blocking strip 103b is positioned at the positions corresponding to the lamp strip, the light blocking band 103b is made of a flaky non-light-transmitting material, such as a metal sheet of aluminum, copper and the like, wherein the width of the slit 103a is 0.1-0.5mm, in order to further control the light scattering effect of the light homogenizing plate 103, the width of the adjacent slits 103a can be made of slits 103a with different sizes, such as 0.2mm for one slit 103a and 0.4mm for the adjacent slits 103a, the light intensity of different slits 103a is manufactured through the different widths of the slits 103a, the uniform distribution of the light intensity is realized through an array mode, meanwhile, the occurrence of interference fringes is further avoided due to different light intensities, the light is uniformly redistributed on the transparent plate only through a mode of not showing the fringes by the light of the slits 103a, the effect that the light is not soft and uniform enough for dazzling under the direct irradiation of the LED light source is avoided, in order to further realize the soft and uniform light at the position of the transparent plate, the inner side surface of the light-transmitting plate 102 is further fixedly provided with a light diffusion layer 104, the light homogenizing layer is uniformly coated and fixed on the inner side surface of the light-transmitting plate 102 by using a light diffusing agent, and the light diffusing agent comprises traditional inorganic light diffusing agents, namely calcium carbonate microbeads, barium sulfate, silicon dioxide and the like, organic LED light diffusing agents, namely organic silicon resin light diffusing agents, styrene type light diffusing agents, acrylic type light diffusing agents and the like.
In the above or some implementations, each of the light strips 106 further includes a slot 106a located below the light strip 106, two sides of the slot 106a are respectively provided with a heat conducting member 106b made of a heat conducting material, each of the heat conducting members 106b is arranged along the length direction of the light strip 106 and is integrated with the light strip 106, each of the heat conducting members 106b includes a cylinder vertically extending to the upper surface of the light strip 106, and further includes a base located at the lower surface of the light strip 106, a heat dissipation plate 107 made of a heat conducting material is fixed at the lower end of the base, the heat dissipation plate 107 is a plate-shaped structure including a plurality of heat dissipation holes arranged in an array, the heat dissipation plate 107 is parallel to the transparent plate 102, the heat dissipation plate 107 is fixedly connected to the base of each of the heat conducting members 106b, and the heat dissipation holes are rectangular holes arranged in a matrix; LED lamp pearl 105 does not generally produce the heat for cold light source, but lamp area 106 can produce certain heat because the resistance effect of electric current as LED lamp pearl 105 encapsulation and welded position department, overheated for avoiding intensive LED lamp pearl 105, include but not limited to copper by the heat conduction material and make heat conduction piece 106b through setting up in lamp area 106, through heat conduction piece 106b with heat transfer to heating panel 107, the below in zones such as on the other hand sets up sunken wire casing 106a in the top, wire casing 106 a's effect except can be as the wire arrangement department in lamp area 106, the sunken of wire casing 106a is in the heating panel 107 simultaneously and corresponds, strip wire casing 106a is in external heat exchange through louvre reinforcing etc.. In order to control the damage and replacement of the linear light source, each light strip 106 is preferably composed of a plurality of segment-shaped light sections, movable connection is formed between the light sections through magnetic adsorption or other easy connection modes, and each light section is a complete loop, that is, the LED lamp beads 105 on each light section are provided with independent power supply lines, the light sections are connected in parallel, in order to further control the connection and position fixation between adjacent light strips 106, fixing bands 111 are respectively vertically extended towards two sides at the middle position of each light section, and the fixing bands are still fixedly connected through magnetic adsorption or other easy connection modes to form the position and fixed connection between the light strips 106.
Those of ordinary skill in the art will recognize that the directional terms "upper," "lower," "outer," "inner," etc., are used in a descriptive sense with respect to the figures and are not intended to limit the scope of the claims. Although the examples are described in part of the embodiments of the present disclosure, it cannot be said that the examples not described in the present disclosure are not within the protection scope of the present disclosure, and the technical solutions obtained by simple replacement still belong to the protection scope of the present disclosure.

Claims (7)

1. The backlight desk for designing hand painting and hand making comprises a desktop (100), wherein the desktop (100) is configured to be provided with a built-in linear light source for generating white light, the surface of the desktop (100) is configured to be matched and provided with a cover plate (101) made of a transparent material, a movable connecting structure is arranged between the cover plate (101) and the desktop (100), and a structure that the cover plate (101) can be opened and paper can be placed between the cover plate (101) and the desktop (100) is formed; the table top light source is characterized by comprising a backlight device fixedly connected with the table top (100) and also comprising point light sources which are fixedly connected below the backlight device and are arranged along the plane extension direction of the table top (100) and formed by a plurality of beads which are close to each other, wherein the point light sources which are close to each other are linearly arranged to form a linear light source; the backlight device comprises a light-transmitting plate (102) made of transparent materials and a light-homogenizing device, the light-homogenizing device comprises a light-homogenizing plate (103) which is made of non-light-transmitting materials and is arranged in parallel with the light-transmitting plate (102) in a spaced mode, a plurality of slits (103 a) which are arranged in an array mode are arranged on the light-homogenizing plate (103), the length of each slit (103 a) is matched with the arrangement of each row or line of point light sources, a light blocking belt (103 b) which is right corresponding to the linear light source is further arranged, the width of each light blocking belt (103 b) is matched with the width of each point light source to form a structure for shielding the point light sources, the distance between the light-transmitting plate (102) and the light-homogenizing plate (103) is defined as L, each slit (103 a) is respectively located between the adjacent light blocking belts (103 b), the widths of the adjacent slits (103 a) are different, structures with different light intensities passing through the adjacent slits (103 a) are formed, the distance between the adjacent slits (103 a) is the same and is defined as D, light emitted by the linear light source is diffracted by the slits (103 a) and forms a structure with uniformly distributed light intensity on the light-transmitting plate (102), a light homogenizing layer (104) is fixedly arranged on the inner side surface of the light-transmitting plate (102), the light homogenizing layer is uniformly coated and fixed on the inner side surface of the light-transmitting plate (102) by a light diffusing agent, each point light source is an LED lamp bead (105), the wavelength ranges of the LED lamp beads (105) are the same, and the LED lamp strip (106) used for packaging the LED lamp source is further included, the plurality of lamp strips (106) are fixedly arranged in parallel at intervals to form the linear light source, the slit (103 a) is positioned at the gap of each adjacent lamp strip (106), and the light blocking strip (103 b) is positioned at the position right corresponding to the lamp strips.
2. The backlight table for designing hand-drawing and hand-handling production according to claim 1, wherein each light strip (106) further comprises a wire groove (106 a) located below the light strip (106), heat conducting members (106 b) made of heat conducting materials are respectively arranged on two sides of the wire groove (106 a), each heat conducting member (106 b) is arranged along the length direction of the light strip (106) and is integrally arranged with the light strip (106), each heat conducting member (106 b) comprises a column vertically extending to the upper surface of the light strip (106), the backlight table further comprises a base body located on the lower surface of the light strip (106), a heat dissipation plate (107) made of heat conducting materials is fixedly arranged at the lower end of the base body, the heat dissipation plate (107) is of a plate-shaped structure comprising a plurality of heat dissipation holes arranged in an array, and the heat dissipation plate (107) is arranged in parallel to the light transmission plate (102).
3. The backlight table for designing hand painting and hand handling according to claim 2, wherein the table top (100) further comprises a fixing frame (108), the light-transmitting plate (102), the light-equalizing plate (103) and the heat dissipation plate (107) are arranged in parallel, the fixing frame (108) comprises a side frame (108 a) surrounding the outer peripheral surfaces of the light-transmitting plate (102), the light-equalizing plate (103) and the heat dissipation plate (107), a flange structure for positioning and fixing the light-transmitting plate (102) and the light-equalizing plate (103) is arranged on the inner side of the side frame (108 a), and an inwardly extending skirt structure (108 b) located below the heat dissipation plate (107) is further included, the skirt structure (108 b) is arranged along the edge of the lower surface of the heat dissipation plate (107) to form a structure for communicating the heat dissipation holes of the heat dissipation plate (107) with the outside.
4. The backlight table for designing hand-drawing and hand-handling production according to claim 3, wherein a turning device is arranged between the cover plate (101) and the fixing frame (108), the turning device comprises torsion arm springs respectively arranged at two sides of the table top (100), a pivot (101 a) formed by downward extending of one end edge of the cover plate (101), a blind hole (101 b) for rotatably matching the pivot (101 a) is formed in the side frame, spring holes (101 c) are respectively formed in the end surface of the pivot (101 a) and the end surface of the blind hole (101 b), a long hole for installing a torsion arm is respectively formed in each torsion spring hole (101 c), and a torsion spring is respectively inserted into each torsion arm spring at two ends to form a structure that the cover plate (101) is turned upwards under the action of the elastic force of the torsion arm springs; the other end of the cover plate (101) is provided with a locking device matched with the side frame, so that a locking structure is formed, wherein the cover plate (101) covers the rear cover plate (101) and is locked with the side frame through the locking device.
5. The backlight table for designing hand-drawing and hand-handling production as claimed in claim 4, wherein the pivot (101 a) is a rectangular block structure with an arc end, the blind hole (101 b) comprises a sliding section (101 b 1) and a rotating section (101 b 2) connected with the sliding section (101 b 1), the rotating section (101 b 2) is in arc transition with the sliding section, the torsion spring hole (101 c) located at the side frame is a slotted sliding hole, a structure that a torsion arm spring slides along the sliding section along the pivot (101 a) and rotates at the rotating section (101 b 2) is formed, the locking structure comprises a locking groove located at the side frame, a lock catch is arranged at the lower edge of the corresponding cover plate (101), and the lock catch and the locking groove form a structure that the lock catch is inserted into after the pivot (101 a) slides into the sliding section.
6. The backlight table for designing the hand painting and the hand office production according to any one of claims 2 to 5, wherein a table belly (109) is further arranged below the table top (100), the table belly (109) is formed into an open or semi-open cavity structure by enclosing a plate-shaped structure, the table belly (109) is further rotatably connected with a support frame (110), and the support frame (110) is fixedly connected with the table belly (109) through a damping shaft (200) capable of adjusting resistance.
7. The backlight table for designing hand-drawing and hand-handling production according to claim 6, wherein the damping shaft (200) comprises a fixing section (201) fixedly connected with the table belly (109), and further comprises a damping section (202) fixedly connected with the support frame (110), the damping section (202) is located between the fixing sections (201) to form a structure that the fixing section overcomes resistance to rotate relatively, and a damping structure is arranged between the damping section (202) and the fixing end.
CN202010103829.XA 2020-02-20 2020-02-20 Backlight desk for designing hand painting and hand making Active CN111265006B (en)

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