June 16th, 2009
New Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Industrial Lab 650nm 5mW Laser Red Dot Module 5V Paypal US $1.35 23d 23h 58m
532nm 150mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 150mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $49.99 7h 4m
532nm 100mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 100mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $35.00 22d 22h 34m
10 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New 10 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Paypal US $6.98 24d 1m
5 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New 5 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Paypal US $4.49 23d 23h 59m
532nm 50mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 50mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $19.00 28d 6h 55m
Green Laser beam 532nm 200mW DOT DIY Lab Diode Module Green Laser beam 532nm 200mW DOT DIY Lab Diode Module Paypal US $79.96 9d 17h 48m
Industry/Lab 200mW 660nm Foucsable Red Dot Laser Moudle Industry/Lab 200mW 660nm Foucsable Red Dot Laser Moudle Paypal US $40.00 14d 7m
INDUSTRIAL/LAB 532nm Green Laser 100mW Diode Module DOT INDUSTRIAL/LAB 532nm Green Laser 100mW Diode Module DOT Paypal US $53.99 24d 21h 3m
1pcs red dot laser module diode 650nm 5mw DIY DC3V lab brass laser 10x22mm 1pcs red dot laser module diode 650nm 5mw DIY DC3V lab brass laser 10x22mm Paypal US $4.21 16d 6h 3m
12pcs/lot red dot laser modules diode 650nm 5mw DIY DC3V lab brass laser 10x22mm 12pcs/lot red dot laser modules diode 650nm 5mw DIY DC3V lab brass laser 10x22mm Paypal US $26.96 16d 5h 41m
Industrial Lab 650nm 5mW Laser Red Dot Module 5V Brass 9mm x 23mm Industrial Lab 650nm 5mW Laser Red Dot Module 5V Brass 9mm x 23mm Paypal US $4.96 15d 18h 37m
Red Dot Laser Module Diode 650nm 5mW DIY DC3V Lab Brass Laser 6.5 x 13mm Red Dot Laser Module Diode 650nm 5mW DIY DC3V Lab Brass Laser 6.5 x 13mm Paypal US $4.53 13d 8h 18m
12mm x 35mm 5mW 650nm Red Laser DOT Diode Module 5VDC for Industrial Lab 12mm x 35mm 5mW 650nm Red Laser DOT Diode Module 5VDC for Industrial Lab Paypal US $6.62 10d 22h 56m
Powered by phpBay Pro

No items matching your keywords were found.

Dot Laser Lab
Dot Laser Lab
Why am I seeing variations in the reflected laser light when I look at the reflection from a diffuse surface?


Here is the experiment. I reflected my tripod laser off of a CFB at my home. I noticed a strange effect and turned the light out to see it better. As I looked closely, I could see small variations in the reflected light. They looked like tiny points of light within the reflection. My first feeling is that it was an effect of the light hitting the photo receptor cells on my cornea. The problem with that was that as I move one way or another, or change the angle of view, I am moving along with the reflected dots. Has anyone seen this in a lab somewhere?
That would explain why as I got closer, I saw less "particle", and more "wave". Thanks for the answers. You college educated people are great for something, dont let anyone tell you different.
I was just reading the paper on the Holographic Universe and wondered if it was related. Turns out it is. http://en.wikipedia.org/wiki/Holographic_interferometry

I have no idea what a CFB is but I think I know the answer.

Because laser light is coherent and monochromatic when it hits any kind of diffuse object you get regions of constructive and destructive interference. These look like bright and dark spots to the eye, and create a speckle pattern.

If you point the laser at a surface whose structure is constantly changing you will see movement in the speckle pattern. Examples are a cup of tea with milk (brownian motion) and human skin (movement of blood cells). This movement in the pattern can be used to measure peripheral blood flow through the skin.



New Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Industrial Lab 650nm 5mW Laser Red Dot Module 5V Paypal US $1.35 23d 23h 58m
532nm 150mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 150mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $49.99 7h 4m
532nm 100mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 100mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $35.00 22d 22h 34m
10 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New 10 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Paypal US $6.98 24d 1m
5 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New 5 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Paypal US $4.49 23d 23h 59m
532nm 50mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 50mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $19.00 28d 6h 55m
Green Laser beam 532nm 200mW DOT DIY Lab Diode Module Green Laser beam 532nm 200mW DOT DIY Lab Diode Module Paypal US $79.96 9d 17h 48m
Industry/Lab 200mW 660nm Foucsable Red Dot Laser Moudle Industry/Lab 200mW 660nm Foucsable Red Dot Laser Moudle Paypal US $40.00 14d 7m
INDUSTRIAL/LAB 532nm Green Laser 100mW Diode Module DOT INDUSTRIAL/LAB 532nm Green Laser 100mW Diode Module DOT Paypal US $53.99 24d 21h 3m
1pcs red dot laser module diode 650nm 5mw DIY DC3V lab brass laser 10x22mm 1pcs red dot laser module diode 650nm 5mw DIY DC3V lab brass laser 10x22mm Paypal US $4.21 16d 6h 3m
12pcs/lot red dot laser modules diode 650nm 5mw DIY DC3V lab brass laser 10x22mm 12pcs/lot red dot laser modules diode 650nm 5mw DIY DC3V lab brass laser 10x22mm Paypal US $26.96 16d 5h 41m
Industrial Lab 650nm 5mW Laser Red Dot Module 5V Brass 9mm x 23mm Industrial Lab 650nm 5mW Laser Red Dot Module 5V Brass 9mm x 23mm Paypal US $4.96 15d 18h 37m
Red Dot Laser Module Diode 650nm 5mW DIY DC3V Lab Brass Laser 6.5 x 13mm Red Dot Laser Module Diode 650nm 5mW DIY DC3V Lab Brass Laser 6.5 x 13mm Paypal US $4.53 13d 8h 18m
12mm x 35mm 5mW 650nm Red Laser DOT Diode Module 5VDC for Industrial Lab 12mm x 35mm 5mW 650nm Red Laser DOT Diode Module 5VDC for Industrial Lab Paypal US $6.62 10d 22h 56m
Powered by phpBay Pro

No items matching your keywords were found.


No items matching your keywords were found.


New Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Industrial Lab 650nm 5mW Laser Red Dot Module 5V Paypal US $1.35 23d 23h 58m
532nm 150mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 150mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $49.99 7h 4m
532nm 100mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 100mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $35.00 22d 22h 34m
10 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New 10 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Paypal US $6.98 24d 1m
5 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New 5 pcs Industrial Lab 650nm 5mW Laser Red Dot Module 5V New Paypal US $4.49 23d 23h 59m
532nm 50mW  Laser Diode Module/Green Beam/Dot Test/Lab 532nm 50mW Laser Diode Module/Green Beam/Dot Test/Lab Paypal US $19.00 28d 6h 55m
Green Laser beam 532nm 200mW DOT DIY Lab Diode Module Green Laser beam 532nm 200mW DOT DIY Lab Diode Module Paypal US $79.96 9d 17h 48m
Industry/Lab 200mW 660nm Foucsable Red Dot Laser Moudle Industry/Lab 200mW 660nm Foucsable Red Dot Laser Moudle Paypal US $40.00 14d 7m
INDUSTRIAL/LAB 532nm Green Laser 100mW Diode Module DOT INDUSTRIAL/LAB 532nm Green Laser 100mW Diode Module DOT Paypal US $53.99 24d 21h 3m
1pcs red dot laser module diode 650nm 5mw DIY DC3V lab brass laser 10x22mm 1pcs red dot laser module diode 650nm 5mw DIY DC3V lab brass laser 10x22mm Paypal US $4.21 16d 6h 3m
Powered by phpBay Pro

Beamshot Triple Dot Red Laser Sight


Beamshot Triple Dot Red Laser Sight


$149


Beamshot Triple Dot Red Laser Sight

Trend Lab 24008 Max Dot - Crib Sheet


Trend Lab 24008 Max Dot - Crib Sheet


$22.6


Max Dot Crib Sheet. Blue with brown dot print. 100% cotton percale. 10" Deep pocket. 56" band of elastic around the entire sheet. Print: Max Dot. Materials: 100% cotton. Dimensions: 50" W x 27" L.

Trend Lab 24008 Max Dot  Crib Sheet


Trend Lab 24008 Max Dot Crib Sheet


$29.38


Max Dot Crib Sheet. Blue with brown dot print. 100 cotton percale. 10 Deep pocket. 56 band of elastic around the entire sheet. Print: Max Dot. Materials: 100 cotton. Dimensions: 50 W x 27 L.

Trend Lab 24009 Maya Dot - Crib Sheet


Trend Lab 24009 Maya Dot - Crib Sheet


$18.18


Pink with brown dot print. 100% cotton percale. Dimensions: 50" W X 27" L X 10" D. 56" band of elastic around the entire sheet. Print: Maya Dot. Materials: 100% cotton.

Trend Lab 24009 Maya Dot  Crib Sheet


Trend Lab 24009 Maya Dot Crib Sheet


$29.38


Pink with brown dot print. 100 cotton percale. Dimensions: 50 W X 27 L X 10 D. 56 band of elastic around the entire sheet. Print: Maya Dot. Materials: 100 cotton.

Single Dot Laser Cat Toy


Single Dot Laser Cat Toy


$6.95


Most cats and dogs love to play, no matter what their age. Play stimulates their intellectual growth, and develops physical coordination and balance. It helps them socialize with other pets and us humans. Move the Spotbrites Pet Laser Pointer across the room, up walls or jump from one surface to another. Make it disappear and suddenly reappear. You and your pet are going to have hours and hours of fun with the Spotbrites Pet Laser Pointer. Exercise for your pet is a secondary benefit of the Spotbrites Pet Laser Pointer - fun being the first Search_Phrases: Cat,Cat Toy,Pet Toys,Ethical Cat,Single Dot Laser Cat Toy

Trend Lab 104528 Bottle Bag - Maya Dot


Trend Lab 104528 Bottle Bag - Maya Dot


$11.27


Maya Dot insulated bottle bag is the perfect on-the-go accessory. Holds 2 bottles. Length: 12.0". Width: 2.0". Height: 8.0".

Trend Lab 104528 Bottle Bag  Maya Dot


Trend Lab 104528 Bottle Bag Maya Dot


$22.88


Maya Dot insulated bottle bag is the perfect onthego accessory. Holds 2 bottles. Length: 12.0 . Width: 2.0 . Height: 8.0 .

Trend Lab 109311 Hangers- 4-Pack Maya Dot Percale- 11 Inch X 1.25 Inch X 2.75 Inch Hook


Trend Lab 109311 Hangers- 4-Pack Maya Dot Percale- 11 Inch X 1.25 Inch X 2.75 Inch Hook


$17.6


Trend Lab Home Accessories - Trend Lab Maya Dot Hangers. 4 Pack Maya Dot Percale Padded Hangers. 11" x 1.25" x 2.75". Hook.

Trend Lab 109311 Hangers 4Pack Maya Dot Percale 11 Inch X 1.25 Inch X 2.75 Inch Hook


Trend Lab 109311 Hangers 4Pack Maya Dot Percale 11 Inch X 1.25 Inch X 2.75 Inch Hook


$22.88


Trend Lab Home Accessories Trend Lab Maya Dot Hangers. 4 Pack Maya Dot Percale Padded Hangers. 11 x 1.25 x 2.75 . Hook.

Pink Polka Dot Chocolate Lab  Pets License Plate Frame by CafePress


Pink Polka Dot Chocolate Lab Pets License Plate Frame by CafePress


$18


I Love My Chocolate Lab Fun pink polka dot chocolate labrador retriever license plate frame is for true dog fans only Unique chocolate lab gifts. Pets License Plate Frame . A real roadside attraction, get your driver's attitude or cause across on this cool License Plate Frame. Constructed of sturdy, durable, shiny chrome that makes your message POP. Images are applied with a permanent adhesive weatherproof decal. UV and w

Pink Polka Dot Yellow Lab  Pets License Plate Frame by CafePress


Pink Polka Dot Yellow Lab Pets License Plate Frame by CafePress


$18


I Love My Yellow Lab Fun pink polka dot yellow labrador retriever license plate frame is for true dog lovers only Fun yellow lab gifts. Pets License Plate Frame . A real roadside attraction, get your driver's attitude or cause across on this cool License Plate Frame. Constructed of sturdy, durable, shiny chrome that makes your message POP. Images are applied with a permanent adhesive weatherproof decal. UV and w

Pink Polka Dot Black Lab  Pets License Plate Frame by CafePress


Pink Polka Dot Black Lab Pets License Plate Frame by CafePress


$18


I Love My Black Lab Fun pink polka dot black labrador retriever license plate frame is for true dog fans only Unique black lab gifts. Pets License Plate Frame . A real roadside attraction, get your driver's attitude or cause across on this cool License Plate Frame. Constructed of sturdy, durable, shiny chrome that makes your message POP. Images are applied with a permanent adhesive weatherproof decal. UV and w

Trend Lab 100056 PinkBrown Clock Pink Dot Brown Numbers  Border


Trend Lab 100056 PinkBrown Clock Pink Dot Brown Numbers Border


$30.68


Keep track of time with this colorful Wall Clock from Trend Lab. This polka dot clock will add a touch fun to the nursery decor with its bright colors. Useful and decorative. Brown frame and numbers. Pink polka dot background. AA battery not included. Polka Dots Wall Clock in Pink and Brown 11 H x 11 W.

Trend Lab 106324 Jersey Receiving Blanket  Maya Dot


Trend Lab 106324 Jersey Receiving Blanket Maya Dot


$25.48


Keep your little one warm and secure with this Maya Dot Jersey Receiving Blanket by Trend Lab. Blanket is made of soft jersey that features a polka dot print in bubblegum pink and chocolate on the front solid bubblegum pink jersey on the back and a chocolate brown trim. Blanket measures 36 x 30 . Fabrics and Materials: 100 cotton. Care Instructions: Machine wash cold; Gentle cycle; Do not bleach; Tumble dry low or line dry; Do not iron. Dimensions: 10x11x2

Trend Lab 102197 Receiving Blanket  Framed Classic Dot


Trend Lab 102197 Receiving Blanket Framed Classic Dot


$33.75


Keep your little one warm and secure with this Classic Spa Dot Framed Blanket by Trend Lab. Soft caramel velour is framed by a cotton twill meadow green and brown sugar dot print on a cream background. Blanket measures 30 x 40 . Fabrics and Materials: blanket: 100 polyester. frame: 100 cotton. Care Instructions: Machine wash cold; Gentle cycle; Do not bleach; Tumble dry low or line dry; Do not dry clean. Dimensions: 10x5x5

Trend Lab 100130 WHITE/PINK STRIPED & DOT FRAME SET


Trend Lab 100130 WHITE/PINK STRIPED & DOT FRAME SET


$25.1


This lovely pair of matching picture frames from Trend Lab will hold 4" x 6" photos and help tie the room together. You will love these lovely picture frames and their simple and elegant designs. Pink and White polka dot and striped designs. Includes two picture frames. Picture frames hold pictures 4" x 6".

Trend Lab 100131 WHITE/SAGE STRIPED & DOT FRAME SET


Trend Lab 100131 WHITE/SAGE STRIPED & DOT FRAME SET


$25.1


This lovely pair of matching picture frames from Trend Lab will hold 4" x 6" photos and help tie the room together. You will love these lovely picture frames and their simple and elegant designs. Green and White polka dot and striped designs. Includes two picture frames. Picture frames hold pictures 4" x 6". Two Picture Frame Set in Sage Green and White 11.5" H x 11.5" W.

Trend Lab 100130 WHITE/PINK STRIPED  DOT FRAME SET


Trend Lab 100130 WHITE/PINK STRIPED DOT FRAME SET


$32.63


This lovely pair of matching picture frames from Trend Lab will hold 4 x 6 photos and help tie the room together. You will love these lovely picture frames and their simple and elegant designs. Pink and White polka dot and striped designs. Includes two picture frames. Picture frames hold pictures 4 x 6 .

Trend Lab 100131 WHITE/SAGE STRIPED  DOT FRAME SET


Trend Lab 100131 WHITE/SAGE STRIPED DOT FRAME SET


$32.63


This lovely pair of matching picture frames from Trend Lab will hold 4 x 6 photos and help tie the room together. You will love these lovely picture frames and their simple and elegant designs. Green and White polka dot and striped designs. Includes two picture frames. Picture frames hold pictures 4 x 6 . Two Picture Frame Set in Sage Green and White 11.5 H x 11.5 W.


HP Laserjet 122A  Black Cartridge in Retail Packaging (Q3960A) HP Laserjet 122A Black Cartridge in Retail Packaging (Q3960A)

List Price: $127.22

 

Description

Enjoy crisp, sharp output every time with this toner cartridge. Maximum Page Yield: 5,000.

Lexmark E240E34X RET PRG TONERCART ( 24015SA ) Lexmark E240E34X RET PRG TONERCART ( 24015SA )

List Price: $162.58

 

Description

Lexmark supplies are designed for the highest quality output page after page. True: Accurate technology. Genuine quality. Environmental focus. It's our nature. Image: Crisp print. Professional documents...




Tara Vs The Dot (Another Lab & Laser Pointer Video)

Black Lab Pup Chasing a Laser Pointer ?


So I have a 7 Month old black lab pup and Im a fearm beliver in a good pup is a tired pup well she seems to tired me out first and I dont want her not to get enough exercise so when Im tired and shes looking at me like come on fatty lets go I break out the laser pointer and she loves to chase it all around the yard, just wondering if this is crule as she never can get the red dot but always comes back for more even when I turn it off she looks at me like aww come on man I was having fun.
Ive owned dogs from puppy to death since I was as child and for any one who is worried I dont run her untill she going to pass out just enough for her to want to lay cuddel and watch some TV with my girlfiend and I, She has to sit in her creat for almost 8 hours a day so after our morning walk I go to work and soon after so does my girlfriend so when I get home shes fired up and ready to go (shes a Lab) and I dont shine the light in her eyes or near her face.
Thanks For all the feed back every one

Haha I do this with my dogs as well. They have an abundance of energy, and sometimes, after a long days work and their walks, I am just about done. So, I take out the laser pointer and they will play with it until I get sick of moving my arm around!!! The funniest part is that they will continue to look for the red dot for at least 10 minutes after I have stopped pointing it. Even funnier, the oldest one knows that the dot comes from "the thing in my hand", so she'll chase it and when I stop pressing the button, she will look up at my hand and try to take a swipe at it =)