Special lens and glare-free blackboard lamp lighting system

A lighting system and blackboard lamp technology, which is applied to lighting devices, fixed lighting devices, lighting auxiliary devices, etc., can solve the problems of difficulty in improving the illumination at four corners of the blackboard, poor lighting uniformity, and easy occurrence of macular, so as to achieve good lighting. The effect of uniformity, homogenization of light spot, and improvement of illumination uniformity

Pending Publication Date: 2019-09-17
成都瀚德胜邦光学有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is: in order to solve the problem that the existing blackboard lamp adopts the structure of elongated lens, elongated reflector or a combination of multiple lenses, macular spots are easy to appear, causing

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Special lens and glare-free blackboard lamp lighting system
  • Special lens and glare-free blackboard lamp lighting system
  • Special lens and glare-free blackboard lamp lighting system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] Such as Figures 1 to 7 As shown, this embodiment provides a special lens, including a lens body 1, a reflective concave surface 2 is provided in the lens body 1, the outer edge of the reflective concave surface 2 is in the shape of a water drop, and the arc and the tip of the reflective concave surface 2 are respectively Upper and lower ends.

[0043] Furthermore, the concave reflective surface 2 is a smooth free-form surface, and the curvature of the concave reflective surface 2 gradually increases from top to bottom, from both sides to the middle, and the bottom curvature of the concave reflective surface 2 is the largest.

[0044] Further, the reflective concave surface 2 is formed by splicing a plurality of block-shaped or strip-shaped free-form surfaces, and each block-shaped or strip-shaped free-form surface is concave or convex.

[0045] In this embodiment, the concave reflective surface 2 of the lens body 1 is in the shape of a droplet as a whole, an...

Example Embodiment

[0046] Example 2

[0047] Such as Figure 1 to 13 As shown, the present embodiment provides a glare-free blackboard lamp lighting system, which includes a plurality of strip-shaped reflective bowls 4 located obliquely above the blackboard 3, and the side of the strip-shaped reflective bowl 4 close to the blackboard 3 is provided with a plurality of the above-mentioned embodiment 1 The special-shaped lens also includes a PCB board 5 parallel to the blackboard 3 arranged near the special-shaped lens, and a number of LED light sources corresponding to the reflective concave surface 2 of the special-shaped lens are arranged on the PCB board 5 one-to-one.

[0048] Further, the PCB board 5 and the strip-shaped reflective bowl 4 have an included angle θ, θ=10°-30°, so that the light is reflected by the reflective concave surface 2 and crosses out to illuminate the blackboard 3, and will not be blocked by the PCB board 5, and does not affect The light utilization rate ensures the lighting...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a special lens and a glare-free blackboard lamp lighting system, and relates to the technical field of classroom lighting devices. The special lens comprises a lens body, and a reflecting concave surface is arranged in the lens body; the outline of the outer edge of the reflecting concave surface is in a water drop shape. An arc part and a sharp part of the reflecting concave surface are respectively arranged at an upper end and a lower end of the reflecting concave surface. The glare-free blackboard lamp lighting system comprises a plurality of strip-shaped reflecting bowls which are positioned obliquely above a blackboard, one surface, close to the blackboard, of each strip-shaped reflecting bowl is provided with a plurality of the special-shaped lenses, and the glare-free blackboard lamp lighting system also comprises a PCB which is arranged close to the special-shaped lenses and is parallel to the blackboard, and a plurality of LED light sources which are in one-to-one correspondence with the reflecting concave surfaces of the special-shaped lenses are arranged on the PCB. The invention has the advantages of simple structure, no glare pollution and good illumination uniformity.

Description

technical field [0001] The invention relates to the technical field of classroom lighting devices, in particular to a special-shaped lens and a glare-free blackboard lamp lighting system. Background technique [0002] For classrooms, lighting is the key and difficult point. Teenagers are growing up. If the lighting effect is not up to standard, it is very likely to cause myopia. Nowadays, the myopia rate of teenagers in our country is increasing year by year, and bad lighting is "hard to blame". If the educational lighting is not reformed, the vision problems of young people will continue to plague everyone. Considering the single lighting fixtures in classrooms on campus, as well as the problems of light source aging, lamp pollution, and room pollution in commonly used lighting fixtures, we should make certain changes to the existing lighting pattern. As an emerging lighting appliance, LED light source has a series of advantages such as high light efficiency, long life, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F21S8/00F21V7/00F21V7/04F21V21/14F21Y115/10
CPCF21S8/00F21V7/0008F21V7/04F21V21/14F21Y2115/10
Inventor 黄金苹郑鹏飞柯真伟杨伟
Owner 成都瀚德胜邦光学有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap