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F15-300mm Visible Zoom Lens
  • F15-300mm Visible Zoom Lens
  • F15-300mm Visible Zoom Lens
  • F15-300mm Visible Zoom Lens

F15-300mm Visible Zoom Lens

parameter:

The F15-300mm zoom lens is mainly used in visible light band to detect specific targets or regions and transmit TV images and focal length information in real time.

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The f15-300mm zoom lens is mainly used in visible light band to detect specific targets or regions and transmit TV images and focal length information in real time.

1. Applied environment 

     


Teperature

(℃)

Visibility

(Km)

Relative humidity

(%)

Visible light imaging251580

Enhance to penetrate the fog


251-880%

2. Main performace

2.1 Sensor:  Digital 1/1.8 "color CCD.

2.2 Illumination adjustment range: 10~1×104(lx).

2.3 The smallest view: ≥2.1°×1.7°.

2.4 Optical magnification ratio: ≥ 20X, consecutive magnification.

2.5 Imaging range: 20m~∞.

2.6 Frame frequency: ≥50Hz.


The F15-300mm zoom system is composed of visible light zoom lens, control circuit board and power supply circuit board. The visible light zoom lens includes CCD, optical lens, diaphragm, potentiometer, micro-dc motor, CAM and other structural parts.

F15-300mm Visible Zoom Lens
















3 Optical lens design

3.1 Zoom lens system is an optical system in which the focal length changes within a certain range and the image plane remains fixed. In general, the relative aperture is constant during zoom.For imaging system, continuous zoom optical system is the best way to solve the problem of large field search and small field resolution. The ratio of the two ultimate focal lengths in the zoom range, namely the ratio of the long focal length to the short focal length, is called magnification ratio, also known as multiplier. In consideration of the secondary spectrum requirements, the plan of the small relative aperture of the long focal length is adopted (that is, the relative aperture also changes during the zoom process).

3.2 The optical system USES a continuous zoom lens with a focal length of 15mm~300mm.

No.Parameters ItemDesign Result
1Zoom ratio20x
2Focal lengthf′=15mm~300mm
4Horizontal field
1.27°~24.9°
5


Visual discrimination(Design value)

Short focus(Wide field of view)≥200lp/mm
Long focus(Wide field of view)≥180lp/mm
6


OTF(Characteristic frequency:145lp/mm)

MTF≥0.2
0.8MTF≥0.1







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  • Add: No.399 Bo Cai Road, High-Tech Industrial Development Area, Changchun, Jilin, China, Zip code 130012
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