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Home
 
I-Cube advantage
  
Machine Vision
 
 
Products
 
Aggregate ID using Image Analysis by I-Cube
 
Fisher Automotive product measurement 
Image Analysis/Processing Workstations
Sugar Imaging
 
Stockpile Volume Calculation

Hardware Vendors

Counting & Sizing
 
Smoke Monitoring
 
Software
 
Vision gauge
Camera Vendors
SDK: IQ STUDIO
 
Workstations
 
Viewing Station
 
Digital Camera Selector Chart
 
Lens 
Lenses
 
BROCHURES
Software Vendors
 media Cybernetics IPP

IQ studio

 
Applications:
 
Sugar Industry INTRODUCTION
 
Chicken Counting

Introduction

Chicken presentation 

SUGAR IMAGING SOLUTIONS
 
Fisher Automotive measurements
 
Art ID / Verification  
 
Car Wash

ILLOVO - Smoke Stack monitoring

SMOKE STACK MONITORING Cost

Product Measurement and Determination using Image Analysis by I-Cube
 
Where to Buy
 
Directions
 
Support
 

Request More Information





I-CUBE Quick Search

 
USER MANUALS
 
CV

DEMOS

Contact Us
 
REQUEST IA CD
\Feed Back
 
News 
 
I-Cube Intro Brochure

 

Lens selection is very critical for megapixel cameras. This month our tech bit of the month feature frequently asked questions regarding lens selection.

What size lens do I use?
The megapixel cameras have a ½ inch sensor, therefore use at least ½ inch or 2/3 inch lens as a minimum(CCD cameras typically use ½ inch or 1/3 inch).

What type of lens?
"Megapixel" lenses should be used. Yes, there is a class of lenses called Megapixel.
We only suggest using lenses from well known companies, such as, Computar, Fujinon, Tamron or Pentax lens. These are all high quality and great performance lenses.

Varifocal verses Fixed focal length
The varifocal lens is typically preferred over fixed focal length lens. We have only seen a few varifocal megapixel lenses, but the fixed focal length lens always outperforms the varifocal.

Do the cameras accept C or CS mount lens?
The cameras will accept either C or CS mount lens. Many CS mount lens will require a 5mm spacer.

Auto-iris verses non Auto-Iris
Our most popular cameras are manual Iris cameras. All Arecont cameras feature a CMOS sensor rather than a CCD sensor that is used in most Analog cameras. These CMOS sensors do not exhibit the bright light blooming problem that is seen in CCD sensors. CCD sensors require auto-iris for minimizing the blooming.
 
Auto-iris is typically used for applications where depth of field is very important. For example, if the camera is used for viewing a parking lot, and the camera is positioned near eye level, then auto Iris is important, since during the bright sunny day, the camera iris is closed down, therefore producing a deep depth of field. Then as the sun sets, the iris opens up to allow more light to hit the sensor. If the camera is mounted on a high pole over looking a parking lot, then the auto-iris feature is not necessary, since the depth of field is not a major issue. Auto-iris is not available on the AV3130 since both day and night lighting conditions are split between the two sensors and lens.

In General, the non auto-iris lens are far superior lens in quality to auto-iris lens.

What type of lens should be used for the AV3130?
You may have noticed that he AV3130 lenses mounting holes are very close to each other. Therefore only fixed focal length lenses from Fujinon, Computar, Tamron or Pentax will work on the AV3130. These fixed focal length lenses range from 3.6mm to 50mm. The higher quality varifocal lenses diameter is too large to fit. The Outside Diameter of the lens must be no larger than 1.5 inch. All fixed focal length lenses(except Computar 5mm) from our price guide will fit the AV3130.

What is the proper aperture setting for a megapixel cameras?
The optimal position for megapixel lens is f2.8 to f4.0

Product Information
 


Compare!

View the Lens Selector Chart.


I-CUBE carries a wide variety of lenses.  Due to the number of lenses available, we can only list some of the most common. Please contact I-CUBE if you have a specific lens requirement or question.


CCTV Lenses
  • Fujinon
  • Navitar
  • Tamron
 
General lens selector criteria

NOTE: these are basic guidelines and are not appropriate for exact lens selection. For a specific lens recommendation, contact I-CUBE

Needed measurements:

  • Camera-to-object distance (OD): distance from face of camera to object

Do not confuse working distance with Camera-to-object distance. Working distance is measured from the front of the lens to the object being viewed

  • Object size

If you are measuring the width of your object, then use the horizontal CCD specifications

  • CCD size (HxV):

  • 1/3" CCD = 4.8mm x 3.6mm

  • 1/2" CCD = 6.4mm x 4.8mm

  • 2/3" CCD = 8.8mm x 6.6mm

  • 1" CCD = 12.8mm x 9.6mm

  • 1" = 25.4mm

Formulas:

  • Magnification (M) = Object size / CCD size

  • Focal length (FL) = OD / (M + 2 + 1/M)

Example:

Camera-to-object distance = 12" = 304.8mm

Selected camera: 1/2" CCD

Object size: 3" = 76.2mm

Preferred orientation: horizontal

M = 76.2 / 6.4mm = 11.9

FL = 304.8 / (11.9+2+ (1 / 11.9)) = 304.8 / 13.98 = 21.8mm

Lens choice: 25mm

Video Inspection Optics

Lenses for Viewing Objects 2" or Smaller

Navitar offers the Zoom 6000, TenX Zoom and 12X Zoom video microscope systems which will outperform most CCTV lenses for close-up, high magnification applications. Typically, CCTV lenses were designed to work from 3' to infinity, but Navitar's Zoom 6000, TenX and 12X lenses are ideal for applications that require a much shorter working distance. These rugged lenses have built-in locking set screws and can handle the vibration of a typical machine application. And because they are specifically designed for high magnification, they have a higher contrast level and less edge distortion that conventional CCTV lenses.

Lenses for Viewing Objects 2" or Larger

Navitar offers the Zoom 7000 macro lenses featuring the same parfocal zoom capabilities offered by the Zoom 6000, TenX Zoom, and 12X Zoom series while allowing close-up image capture without extension tubes or close-up lenses.


 

 

 

 

 

Our Web site is packed with information on our product lines. We invite you to explore the site and download the technical documentation, news items, photos, description of sample installations, system simulations and recognition demos. 

Our product line includes   

License Plate Recognition

License Plate Recognition for a wide range of applications including Parking, Access Control, Logging all vehicles & alarm when Wanted Vehicles detected.   

SAFLAG

All About IR-CAM 55X Print E-mail
Written by Editor Choice   
Saturday, 08 September 2007

 

 IR-CAM 55X is a radiometric thermalimaging system which can be handheld and has features that are praise worthy. Superb image quality, accurate temperature measurement, digital image storage and analysis/reporting software package are some of the main features. This device is mostly used in boiling and refracting analysis. The placing of the controls is constructed so that they can be at your finger tips. It has an easy to use format that can make any user feel at home while operating the device. The controls are so well placed that your fingers will easily be able to be placed and will not have to move from one control to another.

Features:
This device has got excellent features. It is because of the features that the device stands out amongst many of its own kind. Some of them are:

• Ultra Sensitive PtSi Camera system
• Color Viewfinder
• Large Color LCD display
• Long Life Battery belt (up to 8 hours)
• 4 Intelligent Rechargeable Batteries
• 4 Bay Battery Charger
• 2 PCMCIA image storage cards (256mb total)
• Voice Annotation Headset w/ Boom Mic
• 0-1500C Temperature Measurement Range
• Hard Shell Case, Manual and Lens Kit
• EZ Report Software
• IR Resources CD ROM

It has extensive analysis capabilities such as the Built-in analysis functions, Differential temperature measurement, and Auto detection of hottest spot in area, and Easy to use PC-based analysis and report generator. It has also got Automatic calibration using built-in temperature reference, Built-in atmospheric transmission model, Auto lens calibration, Built-in high temperature filter (button switching), 12 / 14bit image storage ensures no data loss, and is Designed and produced according to ISO 9001 standards. The joy stick of the focus and zoom, one hand operation, the built in filter, voice recording, continuous digital zoom telephoto, intelligent battery system and many automated functions are the easy to use functions which make the device so comfortable with the users. It has LCD display and flash memory care image storage with USB downloadable cables and removable flash cards. There is nothing that can escape your eyes when you use this device to see the world.

The specifications of the device are that it has got a spectral range of 8-12 microns for models 570 and up (LWIR), detector range of 320x240 PtSi focal plane array (550 model) / 320x240 Micro Bolometer for models 570 and greater, Standard Field of View (FOV): 24x18, and accuracy is +/- 2% or 2 C also aligned with multiple palletes. The thermal measurement range is 1500c (*570 E cameras) Contact Us for additional info, and a four language selectable menu’s.

Author- 7bInfrared Products The company is into thermal Infrared products and night vision equipment like night vision goggle, night vision binocular.infrared camera.

 

Author- 7bInfrared Products The company is into thermal Infrared products and night vision equipment like night vision goggle, night vision binocular.infrared camera.

Article Source: http://www.a1-articledirectory.com

Facial Identification & Verification Solutions

Complete solutions, software only, SDK or rentals!

             IMAGE ANALYSIS Solutions

CALL Barry on +27 31 764 3077  or   + 27 (0) 82-562-8225  or E-Mail NOW (info at I-Cube dot co dot za)  OR Fax Number : 0866539659 OR Contact one of our DISTRIBUTORS or an independent security advisor!

I-CUBE and PlanetCCTV announce a partnership whereby the I-CUBE Facial and LPR products will now be shipped PRE-installed on all PlanIT CCTV products 

Please download (ZIP / Word) the I-Cube Company Profile and Products if you require more information

I-Cube.   All rights reserved.  Revised: February 18, 2008 .                                  BTD (QG) Quotes