How to Design a Dual Pulse LED Flasher Circuit Using NE555 or Similar Timer ICs?

hi
I want to design a circuit with timer ic something like ne555 that making 2 different pulse in one period like the image that i upload in this comment can anybody offer me any ic that make this pulse or help me in designing .

I am going to make a leap in judgement and assume that you are working in multiples of your basic single waveform of a 1:1 square wave and the off period is an integer multiple of that. My second guess is that you want to avoid programmable logic or micros.I am not sure how versatile you want to make this- will you want to adjust the 8xmS off period or the number of switching cycles from the 4 that you show?
You should look up different techniques of "pulse swallowing" for perhaps the most versatile approach.You could possibly get a rate multiplier to work- take a look at the CD4089 which does seem allow for 4 pulses in 7, but I am not sure of what the actual output looks like. No doubt someone will correct my suggestion shortly.I have some other suggestions, but a) they will depend on the parameters that you provide and b) they will certainly require more than 1 chip.POST SCRIPTNow that I look in more detail, I see the 800mS is  not a multiple of the 200mS cycle, since there is 100mS "0" period missing. so much of what I suggest may not be applicable. SO more definition, please. 

You just put "one period" for your overall cycle time, with the timings you give this totals 1500 ms, is that what you wanted? You say you want "2 different pulse in one period " but your diagram shows 4 pulses.  As Aubrey says, more definition please!Bit more complex, but you could get a 1-16 line decoder like a 74HC154.  Feed it from a binary 4-bit counter with a 100 ms clock and you will get 16 outputs going low in succession.This will give you a 1600 ms cycle, you only want 1500 ms.  So you take output 16 (actually called /Y15 as they start from 0) and use that to reset your counter back to 0.You then arrange selected outputs to drive your LED, in this case you'd use outputs /Y0. /Y2, /Y4 and /Y8.  Use diodes to connect them to your LED and it will flash as you wish.I'm a bit pushed for time but if you like this idea let me know and I'll post a bit more detail and maybe a diagram.The other way of doing it is to use a small microcontroller chip (Microchip make many ATtiny and PIC12xxx chips like this) and program it to flash your LED.  Very cheap and easy, if you can program. You'd literally need the chip, a resistor and a LED.You could also get 2 555s, one with a 1500 ms period with variable duty cycle, gating the other (which drives the LED) with a 200 ms period, but you'd have to try and synchronise them to get exactly the timings you need.  That is also do-able I think. Again I'll post more detail if you like this.

let me tell you something about the this subject.it was started when i had a hardware that flash led 4 times like thatwave i attached.when i opened that i saw a hardware with one 8pin ic in a circuit something like 555 ic so i was wonderhow they can make this wave by one ic.let me tell you this is not a programmable ic.i found the circuit of that design andi will attach the file.it is not important to know which ic that they used in the circuit but it is intersting to makethat wave without any programmable ic.about the file that i attach, the led connect to the transistor collector and GND

How do you know that this is not a programmable IC?  It is certainly not a common Atmel or PIC uC as the pinouts don't match.  However it might be something else....It's also possible that it is a custom IC - was this a commercial device?What markings were on the IC?

fruitful suggestions

the part number of this ic was cleared.i think because of these resistor it may not be programmable ic.may be its an irregular chinese ic but i am almost sure that its not a programmable ic.do you have any idea about making this pulse by any ic

Linear Technology (now Analog Devices) do a range of "Timerblox" which are programmed by resistor values and not any capacitor. As far as I know none have the functionality that you describe, but you may want to investigate further.

I've come across this scurrilous practice before (sandpapering off the IC markings) but that would indicate it's a standard IC.  There are no standard ICs I know of that would do this, though.