CN2167852Y

CN2167852Y - Vision-protecting pen with function of automatic testing of eyesight

Info

Publication number: CN2167852Y
Application number: CN 93212243
Authority: CN
Inventors: 周宏生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-06
Filing date: 1993-05-06
Publication date: 1994-06-08
Anticipated expiration: 2003-05-06

Abstract

The utility model relates to a vision-protecting pen with the function of automatic testing of eyesight. The pen is characterized in that an electronic circuit is added in the pen and has the function of testing of eyesight, automatic alarming, etc. The power supply of the electronic circuit is detached with the electronic circuit, and the switch of the power supply is automatically controlled without additional operations. The pen is used for monitoring the illumination of the learning environment to achieve the purpose of protecting vision.

Description

Vision-protecting pen with function of automatic testing of eyesight

The utility model relates to a kind of little of the miniature electric light measurer that can be installed in the pen.

For vision protection, do not make hypopsia, just must not reading under the dark environment of light, write.According to pertinent regulations, read a book, the illumination when writing must not be lower than 100 Luxs.This just needs a kind of light measurer.Common way is to be equipped with a professional photometer, and this is difficult to realize to ordinary consumer.

The purpose of this utility model be to provide a kind of itself just with the pen of photometry function, the illuminance around it can detect effectively, and reporting to the police automatically.

The purpose of this utility model is achieved in that at pen afterbody attaching one electronic metering device, at penholder afterbody attaching one power supply.When the cap of a pen put the penholder afterbody, power supply and electronic metering device were connected, and the electronic metering device is started working.During work such as ambient light illumination when being lower than 100 Luxs, the electronic metering device sends warning light.

The utility model is because just add a miniature electric light measurer, so cost is low especially on common pen; Because the power supply of device separates with the electronic metering device, only power supply is just connected the electronic metering device when writing, so special power saving simultaneously; In addition, because switch is when controlling the immediate shipment pen cap automatically and being enclosed within the penholder afterbody, the anodal conveyer line of pen cap inside and negative pole conveyer line are automatically with power connection, so simple to operate, easy to use.Describe the power unit structure in detail below in conjunction with accompanying drawing 1:

It is 3 glued together that metal cartridge 4 and plastic battery cover, they with battery box 6 between by being threaded, can adorn after battery cover 3 screwed off and change battery, the positive polar body 7 of

battery

1,2 bottoms is glued together with battery box 6, just anode can be communicated with penholder shell 5 after loading onto penholder.

Describe the electronic circuit part-structure in detail below in conjunction with accompanying drawing 4:

Have 1 fenestella on the pen cap shell 14, to appear the warning light that internal electronics is sent, pen cap hook 8 is direct with being threaded with light sensor 11, light sensor 11 adopts transparent material to make, light sensor 12, circuit printing plate 13, positive source conveyer line 15, power cathode conveyer line 10 fuse whole device, and support 9 separates this device and written chamber to prevent that ink from flowing into electronic circuit.

It just in time is 100 Luxs that resistance R among Fig. 3 makes light-operated value by adjusting.

Dash area is the copper conductor part in the circuit printing plate among Fig. 2, and dot is a diameter 0.8-1.0 aperture.

Claims

1, can automatic light measuring with the automatic light measuring vision protection pen of vision protection, this pen has a miniature electric light measurer in pen cap inside; At the penholder afterbody one power supply is arranged, it is characterized in that: there is a light sensor 12 pen cap end, and there is a circuit printing plate 13 pen cap inside, and two light emitting diodes are arranged on it, negative pole conveyer line 10 and anodal conveyer line 15 are arranged on support 9, and there are battery 1 and battery 2 in power supply inside.

2, according to the described device of claim 1, it is characterized in that: battery 1,2 should be the AG3 button cell.

3, according to the described device of claim 1, it is characterized in that: when the pen cap was enclosed within the penholder afterbody, power cathode conveyer line 10, anodal conveyer line 15 dependence self elasticity contacted reliably with penholder shell 5 and metal cartridge 4.