Senba Sensing-Focus on Pyroelectric Infred Sensor
Senba sensor Stock Code : 300701

Fresnel Lens

Fresnel Lens

Home > Products > Fresnel Lens > 7709-1


PROD Model:7709-1
Material : HDPE
Overall Size:φ20.7*16.9mm
Focal Length:7.6mm
Detectable Distance:≥ 8m
Viewing Angle:120°
Color : primary color 、black 、 milky (Color customization is acceptable)


Widely used in human body sensor switch, alarm, infrared thermometer and infrared imaging and other aspects. It can provide users with different sensing angles, sensing distances, sizes, and test ratios. Fresnel lens function: first, focusing effect; The second is to divide the detection area into several bright and dark areas, so that the moving objects entering the detection area can produce a change pyroelectric infrared signal on the PIR (passive infrared detector) in the form of temperature changes.


★ Inductive switch

★ Inductor


PROD Model 7709-1
Material HDPE
Overall sizeφ20.7*16.9mm
Focal length7.6mm
Detectable distance ≥ 8m
Viewing angle 120°
Color primary color 、black 、 milky (Color customization is acceptable)

Dimension (Unit=mm)


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SENBA Sensing Technology Co.,Ltd.(stock code:300701), was founded in 2005, with the focus on producing the top quality photoelectric components, such as PIR sensors, Photoresistors,Light Sensors, Flame detectors etc. Our strategic goal is to master the core technology.