Invisible IR Camera Tested (Vivotek)

Avatar
Ethan Ace
•Published Jan 30, 2017 13:58 PM

********** ** ** ********** ** ************, from ****-*** **** ***** ******* ** even *** ****** **** ******. *** this ** ******* ***** **** * distinct *** **** **** *** ***** illuminators, ****** **** *** ******'* ******** at *****.

***, ******* *** ******** ********* *********, * ******* ****** **** ********* 940nm ** ************ *** ******** ************.

** ****** *** ****** **** *** model ** *** *** ** ****** up ******* **** *** ********* ********* *** whether **** *** ******** ** ********* hype ** ****** ** **** ***** scenarios.

*******

*** ******* ******'* *** ** ********* 940nm ** ** * ******** *******, and ******** **** *** ****, ***** the ****** **** ********* ** **** than ***** ** ***** ** *** light ******.

***** ********* **** ********** *** ******** ************ may **** ***** ******** **********, ********** at * ********** *** *****.

*******, *** ****** ** ************ *** positioning *********** *** ** ***********. 

*******

*** *******-* ***** *** ***** $*** USD ******. **** ** ********** ** other ***** *********, **** ***********'* **-**********-*, *** ******** **** ********* **** others, **** ******' *****-* (~$*** ******).

**** **** *** ******* ****** ** one ** *** ********* ** *** ***** IR, ******* ** *** **** ******* 850nm ****.******'* ** **** ******* **** **** ********* *****, *** this ********** ** ********* ***** **** in **** *** ******* ***/** ******** illuminators.

Size **********

*** ******* ****** ** ***** *** same **** ** ***** ******* *****, shown ****:

 

*** ******'* ************ ** ******* ********* from **** ******* *****, ** *** gimbal ** **** ******* (******, *********, screw ******) *** ** **** *** placed ** *** **** ** *** camera, ******* ** *********** *** ****, both ******** *****.

IR *** *********

*** ****** ****** *** ** **** in *** **** ** *** ****** instead ** *********** *** **** ** is ******* ** ** *****. **** means **** *** **** ** *** follow ****** ** *** ******.

** *** *****, *** **** ******** pattern *** ************ **** ****** ** illuminate ******** **** ** *** ******** of **/**** ****, ******* *** ********* the ******'* *****. 

Invisible **

*** ***** **** **** ** *** Vivotek ****** *** ********* ** *** human *** *** **** ******* ******* (such ** *** ****** **** ** take *** ***** *****). ** * dark **** (~*.***), *** ****** ** barely *******, ****** ** **** **** difficult ** ****, ***** *** ********* IR ****'* **** *** ** **** from ****** *** ****.

Bright *** ****** *****

**** **** ****** *** ******'* ** LEDs *** ********* ** *** ***** eye, ** ***** **** * **** bright ****** *** *******, ***** ** visible ******* *** ******'* ***** **** and **** ******* *** ******* **** housing, ****** **** *** ********. **** *** may ** ****** *** *** *** web *********, *** **** ********** *** not **** ******* **** ******* ** installs *** ********* **** ****** **.

One-Axis ******

*** ****** ** *********** ********** **** on *** ****: **/**** ****. ***** is ** *** ** ****** *** camera ****** ** ***** *** ******, which *** ** * ******* ** sloped ********. 

******** ** ******** ** * ***** next ** *** ******, ***** *****:

*** ****** *** ** ******* ***** 70-80° by ********* ******** ****** *** ******** the ****** **** ***** ******* ******** holes, *** ***** ** ** ***** rotation.

 

Low ***** ***********

******* ********* **** *** ***** ** LEDs **** * **** ***** ** 6M (~**'), ** *** ***** *** FD8166 *********** * ***** **** ******, but ******. ************ *** ****** ****** to ****** ****** ******** ********** *** room.

************ *** ******* ** *** ********* 2522 ** ****, ***** ***** *** comparison.

****** ********* *** *****, ******* ** ~55 *** / **' ***** **** weak, **** **** ***** **** ****** legible, *** ** ****** ******* *********. However, ***** ******* ****** *** *** perform **** ******, **** *** ********* 2522 ******* *** ***** **** ***** line *******, *** ** ****** *******, and *** ***-** **** *****-* ********** details ** ******* ***** *** *******.

Full ***** ***********

** **** *****, *** ******* *** performed *********, **** **** ******* ** ~3/4 ** *** *******, *** ****** details *******.

 

Versions ****** 

*** ********* ******** ******** **** **** in **** ****:

  • ******* *******-*: *****
  • **** *****-*: *.**.*
  • ********* **-*******: *.*.*
Comments (4)
IK
Itamar Kerbel
•Jan 31, 2017

I get a lot of requests for 940nm IR but when customers realize that they lose a lot of IR distance they usually go for regular IR.

(1)
Avatar
Scott Bradford
•Jan 31, 2017
IPVMU Certified

I've done a fair amount of work with 940nm for Police work. You lose IR range, but if you're doing work in the woods, it's pretty important.  For building/indoor/resi work, I don't really see the point

(1)
(1)
(2)
Avatar
Ethan Ace
•Jan 31, 2017
In reply to Scott Bradford

If I were a comedian, I'd make a joke about not really seeing the point. Invisible IR humor!

But that is actually the point. If you want to better mask where your cameras are located/aimed in the dark, 940nm helps. I think that applies to most any application.

(3)
Avatar
Brian Rhodes
•Jan 31, 2017
IPVMU Certified
In reply to Ethan Ace

If I were a comedian, I'd make a joke about not really seeing the point. Invisible IR humor!

pun score: 2/10

(2)