CN110715237A - Portable eye-protecting desk lamp with foldable light-emitting surface - Google Patents
Portable eye-protecting desk lamp with foldable light-emitting surface Download PDFInfo
- Publication number
- CN110715237A CN110715237A CN201810767805.7A CN201810767805A CN110715237A CN 110715237 A CN110715237 A CN 110715237A CN 201810767805 A CN201810767805 A CN 201810767805A CN 110715237 A CN110715237 A CN 110715237A
- Authority
- CN
- China
- Prior art keywords
- shell
- fixed
- source module
- diffusion film
- emitting surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
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- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
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- 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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a portable eye-protecting desk lamp with a foldable light-emitting surface, which comprises a shell, a shell separation part, a lithium battery, a roller device, an LED light source module, a light guide rod, a diffusion film and a foldable device, wherein the shell separation part is arranged on the shell; the lithium battery is fixed at the bottom of the shell, the LED light source module is fixed at the center of the roller device, the light guide rod is fixed on the LED light source module, the diffusion film is wound outside the roller device, one side of the diffusion film is fixed on the roller, the other side of the diffusion film is fixed on the shell separation part, one end of the folding and unfolding device is fixed on the shell, and the other end of the folding and unfolding device is fixed on the. When not in use, the desk lamp is small and convenient to carry. When the portable eye protection device is used, the shell separation part is lifted upwards until the folding and unfolding device is straightened, and a large light emitting surface is matched with the LED light source module with certain power and low blue light and the light guide rod to ensure a large irradiation range and luminous flux, and simultaneously, lower glare is ensured, and the portable eye protection purpose is achieved.
Description
Technical Field
The invention belongs to the technical field of lamps, and particularly relates to a portable eye protection desk lamp with a foldable light emitting surface.
Background
The development of non-imaging optics has led to collimating lens efficiencies above 90% and exit angles approaching the theoretical minimum. This makes it possible to use a smaller diameter light-guiding rod and diffuser film to achieve uniform light extraction.
The glare refers to a visual phenomenon that uncomfortable brightness distribution or strong brightness contrast exists in a visual range of human eyes, so that human eyes are physiologically uncomfortable and visual resolution is reduced, and the glare of table lamp illumination can be represented by a glare evaluation function UGR, wherein the expression of the glare is as follows:
。
wherein the content of the first and second substances,
representing ambient background brightness; l represents the brightness of each luminaire in the viewing direction; w represents the solid angle formed by each luminaire light emitting portion to the observer's eye; p denotes the position index of the individual luminaire.
In order to reduce glare and achieve the purpose of protecting eyes, the light emitting area must be enlarged or the brightness of the lamp must be reduced, and the enlargement of the light emitting area and the portability are often contradictory.
Disclosure of Invention
In order to solve the problems, the invention provides a portable eye protection desk lamp with a retractable light emitting surface, which effectively solves the problem of large contradiction between portability and a light emitting surface, so that the desk lamp can provide a large illumination range while meeting the portability.
In order to solve the technical problem, the invention adopts the following technical scheme.
The light-emitting surface consists of two bendable diffusion films, and when the desk lamp is turned off, the light-emitting surface can be wound in the lamp body like a scroll; when the desk lamp is turned on, the light-emitting surface is pulled out to form a light-emitting surface of 20cm by 20 cm.
The light guide rod made of PMMA material is arranged in the lamp body, and secondary light distribution is carried out on light emitted by the 4014 light bar, so that the uniformity of a light emitting surface with 20cm by 20cm is met.
The base is equipped with the large capacity lithium cell, satisfies long-time continuation of the journey.
Drawings
The invention is further described with reference to the drawings and the detailed description.
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, 1 is a shell, 2 is a shell separation part, 3 is a lithium battery, 4 roller devices, 5 is an LED light source module, 6 is a light guide rod, 7 is a diffusion film, and 8 is a folding and unfolding device.
Detailed Description
A portable eye-protecting desk lamp with a stretchable light-emitting surface comprises a shell 1, a shell separation part 2, a lithium battery 3, a roller device 4, an LED light source module 5, a light guide rod 6, a diffusion film 7 and a stretching device 8; casing 1 and casing separation part 2 constitute a complete shell, lithium cell 3 installs in casing 1 bottom, roller bearing device 4 both ends are fixed on 1 both sides terminal surface of casing, LED light source module 5 is fixed at the central non-rotating part of roller bearing device 4, leaded light stick 6 is fixed on LED light source module 5, diffusion barrier 7 rolls up in the roller bearing device 4 outside, one side is fixed at the roller bearing device 4 outside rotatable part, the opposite side is fixed at casing separation part 2, 8 one ends of device of taking up and paying off are fixed on casing 1, the other end is fixed on casing separation part 2. A lithium battery 3, a control circuit and a switch are arranged in the shell 1, and a USB interface is reserved on the outer side of the shell 1 for charging and can be used while punching; the shell separating part 2 is a part separated from the upper part of the shell 1 and is combined with the shell 1 to form a complete shell; the roller device 4 consists of an outer rotatable part and an inner fixed hollow cylinder, wherein the outer rotatable part consists of two parts, spring pieces are arranged at two ends of the outer rotatable part, the diffusion film 7 can be retracted like a tape measure, and the inner hollow part is used for installing the LED light source module 5, the light guide rod 6 and a wire; the two diffusion membranes 7 are fixed on two sides of the rotatable part outside the roller device 4, the other side is fixed on the shell separating part 2, and the bottom is wide and the top is narrow in the stretching state. One end of the folding and unfolding device 8 is fixed on the shell separating part 2, the other end is fixed on the shell 1, and a buckle is arranged on the folding and unfolding device and is firmly clamped in an unfolding state.
When not in use, the desk lamp is a cylinder, is convenient to carry, and when in use, the diffusion film 7 is pulled out, the buckle in the extension structure 8 is fixed, and the desk lamp can be used after the switch is turned on.
Claims (4)
1. A portable eye-protecting desk lamp with a retractable light-emitting surface is characterized in that;
the LED light source module comprises a shell (1), a shell separating part (2), a lithium battery (3), a roller device (4), an LED light source module (5), a light guide rod (6), a diffusion film (7) and a folding and unfolding device (8);
the LED light source module is characterized in that the shell (1) and the shell separating part (2) form a complete shell, the lithium battery (3) is installed at the bottom of the shell (1), two ends of the roller device (4) are fixed on two end faces of the shell (1), the LED light source module (5) is fixed on a non-rotating part in the center of the roller device (4), the light guide rod (6) is fixed on the LED light source module (5), the diffusion film (7) is wound on the outer side of the roller device (4), one side of the diffusion film is fixed on the rotatable part on the outer side of the roller device (4), the other side of the diffusion film is fixed on the shell separating part (2), one end of the folding and unfolding device (8) is fixed on the shell;
a lithium battery (3), a control circuit and a switch are arranged in the shell (1), and a USB interface is reserved on the outer side of the shell (1) for charging and can be used while punching;
the shell separation part (2) is a part separated from the upper part of the shell (1) and is combined with the shell (1) to form a complete shell;
the roller device (4) consists of an outer rotatable part and an inner fixed hollow cylinder, wherein the outer rotatable part consists of two parts, the two ends of the outer rotatable part are provided with spring pieces, the diffusion film (7) can be retracted like a tape measure, and the inner hollow part is used for installing the LED light source module (5), the light guide rod (6) and a wire;
the two diffusion films (7) are fixed on two sides of the rotatable part outside the roller device (4), the other side of the diffusion films is fixed on the shell separation part (2), and the bottom of the diffusion films is wide and the top of the diffusion films is narrow in an extending state;
one end of the folding and unfolding device (8) is fixed on the shell separation part (2), the other end of the folding and unfolding device is fixed on the shell (1), a buckle is arranged on the folding and unfolding device, and the buckle is firmly clamped in an extending state.
2. The portable eye-protecting desk lamp with a retractable light-emitting surface as claimed in claim 1, wherein: the shape of the shell (1) comprises any polygonal prism such as a quadrangular prism, a pentagonal prism, a hexagonal prism and the like and any curved cylinder such as a semi-cylinder, a semi-elliptic cylinder and the like.
3. The portable eye-protecting desk lamp with a retractable light-emitting surface as claimed in claim 1, wherein: the diffusion film (7), the roller device (4) and the folding and unfolding device (8) form a foldable light-emitting surface.
4. The portable eye-protecting desk lamp with a retractable light-emitting surface as claimed in claim 1, wherein: the LED light source module (5) and the light guide rod (6) form a high-efficiency collimation system, and the light emitting surface of the diffusion film can uniformly emit light by matching with the diffusion film with a narrow width at the bottom in a stretching state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810767805.7A CN110715237A (en) | 2018-07-13 | 2018-07-13 | Portable eye-protecting desk lamp with foldable light-emitting surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810767805.7A CN110715237A (en) | 2018-07-13 | 2018-07-13 | Portable eye-protecting desk lamp with foldable light-emitting surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110715237A true CN110715237A (en) | 2020-01-21 |
Family
ID=69208453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810767805.7A Pending CN110715237A (en) | 2018-07-13 | 2018-07-13 | Portable eye-protecting desk lamp with foldable light-emitting surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110715237A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111880334A (en) * | 2020-07-22 | 2020-11-03 | 厦门天马微电子有限公司 | Backlight module, display device and control method thereof |
-
2018
- 2018-07-13 CN CN201810767805.7A patent/CN110715237A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111880334A (en) * | 2020-07-22 | 2020-11-03 | 厦门天马微电子有限公司 | Backlight module, display device and control method thereof |
| CN111880334B (en) * | 2020-07-22 | 2022-06-07 | 厦门天马微电子有限公司 | Backlight module, display device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200121 |