Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Tutorials, Help & Repairs



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 09-24-2014, 07:30 AM #1
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Taras Taras is offline
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Default Will it burn aka help with component choise

Hi Dear members

I'm going to build a small device to detect the direction of small objects on a convoy/slide/chute, and then seperate them into two lanes.... based on laser light.
It will be handling an object pr. sec. and can be run for 24h non-stop (most of the time 8h daily)

I've attached a drawing of the device I'm going to build, but it raises some questions to me...

a) I've made a small hole/channel on my device that is 4x4mm to narrow the laserbeam.
Will incapsulating the laser (as I've planned), make it extreemly hot or is that not a problem?
...should I drill holes into the laser housing/channel

b) I've got a 650nm laser (like this one... 5mw red line laser), and I'm currently looking to find a corresponding phototransistor... does anyone know one, or could anyone point to a better set of matching components for this purpose?

I will be using an Arduino Uno to controll the laser, phototransistor and servo.

Thank you a lot for your time and help!

Kind regards Taras
Attached Thumbnails
Will it burn aka help with component choise-sokkelslide3.jpg  


Taras is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 09-24-2014, 09:49 PM #2
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Will it burn aka help with component choise

Any phototransistor sensitive to visible light will work, provided you know what you're doing with the rest of the circuitry.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 09-25-2014, 08:38 AM #3
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 873
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Will it burn aka help with component choise

As for your thermal question; the linked module consumes 20mA; if you run it from 5V that is 100mW of dissipation (minus ~5mW optical), which shouldn't be an issue for it.

Keep in mind that depending on how many I/O channels you are using and with what circuitry, you may not have the 20-25mA available from the Arduino. In such a case you will need a buffer/current amplifier stage (simple 2N2222A or a logic level n-ch FET would do).
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 09-25-2014, 09:03 AM #4
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Taras Taras is offline
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Default Re: Will it burn aka help with component choise

Thank you!

I've just bought the BDY62 as ir receiver.

I think i'll circuit the power supply out seperately to each component/module, so it feeds the arduino (with a motor shield), the laser, the ir receiver, the stepper motor.
Trying to gather components so that all will be running 5V.

Then it should mearly be a question of having a good enough ps...

Wouldn't that do it?

Last but not least, the arduino will be feeding a central controller with a status (thinking perhaps daisy-chaining multiple arduinos).

regards T
Taras is offline   Reply With Quote
Old 09-25-2014, 10:43 AM #5
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Taras Taras is offline
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Default Re: Will it burn aka help with component choise

sorry... not thinking... i'll be using a 12V PS for the stepper and motor driver
Taras is offline   Reply With Quote
Old 09-26-2014, 01:01 AM #6
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,141
Rep Power: 9321
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: Will it burn aka help with component choise

Quote:
Originally Posted by Taras View Post
I've just bought the BDY62 as ir receiver.
I think you missed the part where I said it needs to be sensitive to visible light. The silicon between the two styles will be similar, but IR receivers are often encased in a plastic that blocks visible light. (A red laser diode emits visible light). For example, here's one under regular light, followed by IR.





Besides, Google tells me the BDY62 is a standard NPN, not a phototransistor.
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 09-26-2014, 06:43 AM #7
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Taras Taras is offline
Junior Member
 
Join Date: Sep 2014
Posts: 4
Rep Power: 0
Taras is on a distinguished road
Default Re: Will it burn aka help with component choise

It's this one... Siemens - datasheet pdf
420nm-1130nm
Taras is offline   Reply With Quote
Old 09-26-2014, 06:36 PM #8
KrowBar's Avatar
Class 1M Laser
 
Join Date: May 2014
Location: Huntsville, Alabama
Posts: 128
Rep Power: 42
KrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond repute
KrowBar KrowBar is offline
Class 1M Laser
KrowBar's Avatar
 
Join Date: May 2014
Location: Huntsville, Alabama
Posts: 128
Rep Power: 42
KrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond reputeKrowBar has a reputation beyond repute
Default Re: Will it burn aka help with component choise

Quote:
I've just bought the BDY62 as ir receiver.
Quote:
It's this one... Siemens - datasheet pdf
Sometimes 1 letter makes a difference after all eh?

I agree that you are unlikely to have thermal issues. The physical size of the module is such that there will be plenty of surface area to dissipate the heat unless you plan to encapsulate it in something with extremely low conductivity.
KrowBar is offline   Reply With Quote
Reply

Tags
arduino, detection, laser, narrow beam, phototransistor





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 03:56 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC