Board Lenses | M12 Mount Fixed Focal Lens for 1/4'' Sensor
- Model
- CV Series
Item specifics
- Sensor
- 1/4''
- Resolution
- 1.3-5MP
- Focal Length
- 1.4-2mm
- Thread
- M12X0.5P
- Iris
- Fixed
- Focus
- Fixed
Review
Description
Introduction
Fixed focal Lens For 1/4" Sensor
High performace for 1.3-5 mega pixel camera
High performace for 1.3-5 mega piexl camera
IP67 waterproof
FOV from 50°to 160°
Minimum distortion less than 1%
Specifications
|
Model No. |
Sensor |
Resolution |
Element |
FNo. |
EFL |
FOV |
TV Distortion |
TTL |
Thread |
|
CV0105A |
1/4" |
1.3M |
4G+IR |
2 |
3 |
68°/50°/89° |
<12.5% |
18.5 |
M12X0.5P |
|
CV0122A |
1/4" |
1M |
4G+1M |
1.4 |
2.2 |
120°/70°/160° |
<81% |
16 |
M12X0.5P |
|
CV0125A |
1/4" |
1M |
6G |
1.8 |
1.6 |
130°/96°/160° |
<28% |
16 |
M12X0.5P |
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FAQ
What is the resolution(μm) of the lens?
Resolution is a measured by how closely 2 points can be before they cannot be distinguished. For example, 1μm resolution means that 2 points that are 1μm away from each other can be distinguished. Resolution values in this catalog are theoretical resolutions for the lenses. The following is a formula to calculate theoretical resolution based on a lens's ray diffraction with no aberration.
Resolution=0.61×λ/NA λ : Wavelength 0.61: Fixed Number
Distortion
(%)
Distortion is the aberration of a lens where a straight object outside of the optical axis appears curved. Distortion of a straight line towards the center is called pincushion distortion, while distortion expanding outwards is called barrel distortion
WD
(Working Distance)
Distance from the front end of a lens system to the object under inspection.
F Number
The value indicates lens brightness. It is calculated by dividing the focal distance of the lens by its effective diameter (entrance pupil diameter D mm) looking from its object side. It can also be calculated by NA and the lens' optical magnifi cation ( ). The smaller the number the brighter the lens is.
F No=f/D
Field of View
Field of view is the size of an object that can be shot when the lens is attached to a camera.
The size of fi eld of view is (sensor size) ÷ (optical magnification ).
(Calculation Example) Optical Magnification =0.2x, camera Size 1/2" (4.8mm Long, 6.4mm Wide) :
Size of Field of View Length =4.8/0.2=24 (mm)
Width =6.4/0.2=32 (mm)
