CN2294377Y - Blackboard lamp for vision protection - Google Patents
Blackboard lamp for vision protection Download PDFInfo
- Publication number
- CN2294377Y CN2294377Y CN 97200178 CN97200178U CN2294377Y CN 2294377 Y CN2294377 Y CN 2294377Y CN 97200178 CN97200178 CN 97200178 CN 97200178 U CN97200178 U CN 97200178U CN 2294377 Y CN2294377 Y CN 2294377Y
- Authority
- CN
- China
- Prior art keywords
- reflection shield
- plate
- grid
- fluorescent lamp
- cover
- 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.)
- Expired - Lifetime
Links
- 230000004438 eyesight Effects 0.000 title abstract description 6
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 238000001771 vacuum deposition Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 230000004313 glare Effects 0.000 abstract description 2
- 230000036541 health Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241001633942 Dais Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to a blackboard lamp for vision protection which is composed of a fluorescent lamp, a ballast, a reflection cover, a grid, a dust-proof cover, a support rod, and a lamp base. The fluorescent lamp and the grid are arranged in the reflection cover. The both ends and the facade of the reflection cover are provided with the dust-proof cover. The upper part of the exterior of the dust-proof cover is connected with the ballast of the fluorescent lamp. The support rod, the reflection cover, and the lamp base are combined together. The utility model has the advantages of high illumination degree and good illumination uniformity. The illumination intensity can reach over 250 lux. The illumination uniformity can reach over 0.75. When use, the defect of the glare of the blackboard can be overcome in daylight, and the illumination intensity of the blackboard can be raised in cloudy day or night. Therefore, the utility model has the better health care function for the vision of students, and the effect of the classroom teaching can be raised.
Description
The utility model is a kind of special blackboard lighting that student eyesight is played a role in health care.
The utility model had " the efficient blackboard lighting device " of Qingdao Marine University's design invention to apply for and obtained utility model patent (patent No. ZL902010883) January 25 nineteen ninety to Patent Office of the People's Republic of China before making.Its structure is by ballast, fluorescent lamp, optically focused cylinder reflection shield is configured to propping up, this device is compared with the light fixture of conventional mounting double as blackboard illumination on the ceiling of front upper place, dais, increasing aspect illuminance and the illumination uniformity and improving, but because the deficiency in the design, the illumination that is produced in the blackboard center when using only is 100Lx, the uniformity is 0.5, regulation well below the GB7793-87 " middle and primary schools' classroom lighting and illumination sanitary standard " of the Ministry of Public Health 87 years issue, this standard code classroom blackboard vertical illumination should not be lower than 200Lx, and illumination uniformity is not less than 0.7.
The utility model its objective is design provide a kind of illuminance and illumination uniformity height, cost low, have a blackboard lights to the preferable health-care effect of eyesight.
The utility model and technology contents are realized by following technical scheme: its structure is to be made of electric ballast, fluorescent lamp, reflection shield, grid, dust cover, support bar and lamp socket, fluorescent lamp is the straight tube power saving fluorescent lamp, can be one or one group, be positioned at focal position, reflection shield intrados top.Reflection shield is that a bus is the high optically focused cylinder reflection shield that semicircle cambered surface and parabola cambered surface are composited, be equipped with the vertical variable-angle reflection of symmetric form grid in the cover, the two ends of reflection shield and the positive protective cover that is provided with glass or transparent plastic sealing, ballast is positioned at reflection shield extrados top, support bar one end is fixed in the outer side of reflection shield, and its camber is 30 degree, and length is 600mm, the other end connects lamp socket, and lamp socket can be installed on 400mm place, top, blackboard centre position.Its parabola of reflection shield cambered surface and semicircle camber line are respectively: parabola AB, CD, and focus is O ', focal length is 13mm, semicircle camber line BD, the center of circle is O, radius is about 48mm.Grid is to be intersected by three plates flutings of A, B and C to form, and A and B plate intersect by notch with the C plate respectively and engage, and tilt to two ends respectively, and gradient is 45 to spend and 75 spend; A and B plate are trapezoidal plate, and the upper and lower length of side of A plate and height are respectively 135mm, 175mm, 85mm, and the upper and lower length of side of B plate and height are respectively 128mm, 170mm, 75mm.The C plate is a rectangle, and its length of side is 145 * 85mm.Reflection shield and grid material therefor are mirror face stainless steel sheet metal or the plastic plate handled by vacuum coating technology.
The utility model is characterized in: 1. simple in structure, light, cost is low.2. illumination height, illumination uniformity are good, and its illumination is that illumination uniformity reaches more than 0.75 more than the 250Lx.3. power consumption is little, and the light radiation face is big, and power consumption is about 28W, is positioned at 400mm place, blackboard top, light effectively uniform irradiation to 2m
2About blackboard on.4. function admirable is used the utility model, can play the effect that suppresses the blackboard dazzle daytime, and cloudy day or night can be improved blackboard illumination greatly, and free from glare.The student can have well visual experience clearly on the seat of any position.This eyesight to the student can play splendid health-care effect, has also improved classroom teaching effect simultaneously.
Description of drawings
Fig. 1: the utility model planform schematic diagram,
Fig. 2: the parabola of reflection shield cambered surface and half-circle-arc shape schematic diagram,
Fig. 3: grid is positional structure shape schematic diagram in cover,
Fig. 4: grid A plate shape schematic diagram,
Be described in detail structure content of the present utility model below in conjunction with accompanying drawing by embodiment:
As shown in Figure 1, its structure is to be made of energy-saving fluorescent lamp or light tube group (1), reflection shield (2), ballast (3), grid (4), dust cover (5), support bar (6) and lamp socket parts such as (7).Reflection shield (2) is the illuminating ray reflection unit, be to be composited by mirror metal thin plate or semicircle cambered surface and the parabola cambered surface made by the sheet plastic that vacuum coating technology is handled, its arc AB, arc CD are the parabola cambered surface, focus is O ', focal length is about 13mm, arc BD is the semicircle cambered surface, and the center of circle is O, and radius is (as shown in Figure 2) about 48mm.On grid (4) is fixed in the reflection shield (2), be the illuminating ray refraction structure, can make light evenly soft, it also is by the mirror metal thin plate or adopts the plastic plate of vacuum coating technology processing to make, its structure as shown in Figure 3, be to be in the same place by three plate flutings of A, B and C combined crosswise, each screen is provided with one and two notches respectively in intersection location.A and B plate are vertically to place, and respectively to cover end position inclination 45 degree and 75 degree; The C plate is a transverse plate, in reflector (2) latus rectum inboard.Symmetry in the middle of the grid of whole lamp (4) is.The size of grid (4) and shape such as Fig. 4, Fig. 5 and shown in Figure 6.A and B plate are respectively trapezoidal plate, and the C plate is a rectangular slab, and its size is respectively, base 135mm on the A plate, and bottom 170mm, height are 85mm; Base 128mm on the B plate, bottom 170mm, height are 75mm; The C plate is 85 * 145mm.Reflection shield (2) two ends and the positive dust cover of making by glass or transparent plastic sheet (5) that is provided with, dustproof to guarantee printing opacity, keep cleaning in the lamp.Support bar (6) is camber 30 degree, and two stainless steels about long 600mm or iron pipe link together reflection shield (2) and lamp socket (7), is installed on the wall at 400mm place above the blackboard.Fluorescent lamp (1) is the straight tube power saving fluorescent lamp, can be one or one group, is positioned at focal position, reflection shield (2) intrados top, and fluorescent tube is 28W, can be at 2m
2Blackboard on produce the above illumination of 250Lx, the uniformity can reach more than 0.75.Ballast (3) is positioned at the outer top of going up cambered surface of reflection shield (2), in connect fluorescent lamp (1), be the startup electric elements of fluorescent lamp (1).
Claims (4)
1. sight protection blackboard lights, be by fluorescent lamp, ballast, the cylinder reflection shield is configured to propping up, the structure that it is characterized in that it is by energy-saving fluorescent lamp or light tube group (1), ballast (3), reflection shield (2), grid (4), dust cover (5), several parts of support bar (5) and lamp socket (6) are formed, reflection shield (2) is that a bus is the high optically focused cylinder reflection shield that semicircle cambered surface and parabola cambered surface are composited, be equipped with the vertical variable-angle reflection of symmetric form grid (4) in the cover, the two ends of cover and positive equipped glass or transparent plastic dust cover (5), fluorescent lamp (1) is the straight tube-like power saving fluorescent lamp, be positioned at focal position, reflection shield (2) intrados top, ballast (3) is positioned at the outer top of going up cambered surface of reflection shield (2), support bar (6) one ends are fixed in reflection shield (2) lateral surface, its camber 30 degree, the about 600mm of length, the other end connects lamp socket (7), and lamp socket (7) is installed in 400mm place, top, blackboard centre position.
2. sight protection blackboard lights according to claim 1, it is characterized in that the parabola and the semicircle camber line of described reflection shield (2) cambered surface is respectively: parabola AB arc and CD arc, focus are O ', focal length is about 13mm, semicircle BD arc, center of circle O, radius are about 48mm.
3. sight protection blackboard lights according to claim 1, the grid (4) that it is characterized in that setting in the described reflection shield (2), be to intersect by A, B and three plate flutings of C to form, A and B plate intersect by notch with the C plate respectively and engage, and respectively to cover end inclination 45 degree and 75 degree, the A plate is the trapezoidal plate of last base 135mm, bottom 170mm, high 85mm, and the B plate is the trapezoidal plate of last base 128mm, bottom 170mm, high 75mm, and the C plate is the rectangular slab of the length of side 145 * 85mm.
4. sight protection blackboard lights according to claim 1 is characterized in that described reflection shield (2) and grid (4), the plastic plate that its material adopts mirror face stainless steel, aluminium sheet or handled by vacuum coating technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97200178 CN2294377Y (en) | 1997-01-07 | 1997-01-07 | Blackboard lamp for vision protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97200178 CN2294377Y (en) | 1997-01-07 | 1997-01-07 | Blackboard lamp for vision protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2294377Y true CN2294377Y (en) | 1998-10-14 |
Family
ID=33921905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97200178 Expired - Lifetime CN2294377Y (en) | 1997-01-07 | 1997-01-07 | Blackboard lamp for vision protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2294377Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052635B (en) * | 2009-10-31 | 2013-08-21 | 中山兴瀚科技有限公司 | Soft light grating structure of fluorescent lamp and fluorescent lamp using same |
| CN106838700A (en) * | 2017-03-17 | 2017-06-13 | 贵州大学 | A kind of wide desk lamp of illumination range |
-
1997
- 1997-01-07 CN CN 97200178 patent/CN2294377Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052635B (en) * | 2009-10-31 | 2013-08-21 | 中山兴瀚科技有限公司 | Soft light grating structure of fluorescent lamp and fluorescent lamp using same |
| CN106838700A (en) * | 2017-03-17 | 2017-06-13 | 贵州大学 | A kind of wide desk lamp of illumination range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: LIU ZHEXUE TO: WANG CUIMIN; LIU QI |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Wang Cuimin Patentee after: Liu Qi Patentee before: Liu Zhexue |
|
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |