JMC is Leader in plastic mold industry | plastic mold | CNC Machining | Fresnel Lens
JMC is Leader in plastic mold industry | plastic mold | CNC Machining | Fresnel Lens
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Room A516, 5th Floor, Yifa Industrial Building, 35 Dayou Street, San Po Kong, Hong Kong
Fresnel Lens
Introduction of PIR(passive infrared) detector
Fresnel lens capture the IR signal from human body, gather these signal into PYRO ( pyroelectric passive infrared sensor ), PYRO transfer it to electrical signal. When a intruder made into a zone range, the intrusion was detected by detector, the detector will generate a alarm signal.
Which products have used PIR lens?
Smart Camera
Intelligent flood lighting
Smart doorbell
Intrusion Alarm detector
Energy-saving light control
Intelligent control switch
PIR lens expert
Explorer of infrared sensing technology
30+ years experience
- Members from Honeywell security, Bosch security, Resideo, iHORN
- Security, Smart home, Occupancy Detection
- Supply Top manufactures
- Advanced tech in industry
From lens to complete product
- Hardware & Software Development
- Competitive analysis to competitor product
- Suitable design for client's demand
- Customized Services
- Full service from DoC, CAE, Design, Manufacturing, Test, etc.
Automation laboratory and Advanced manufacturing tech
- Lab—Deviation from test repeatability<5%
- Lab—Six specimen testing online at same time
- Lab—Testing and report automatically
- Manufacture—Lens process analysis
- Manufacture—Advance tech
Scenario problem solution
- FOV of Wide angle in vertical&horizontal direction
- Different mounting request • Occupancy detection on PIR tech
- PIR scenario problem analysis solution
- ID design feasibility analysis
- Anti-aging & Hi-transmittance material
Passed ISO9001 quality certification
FRESNEL LENS R&D -- 30+ years profession experience
• Cover All Kinds of PIR Products (show partly)
• Optical Tooling Manufacture & Check
• Design and Simulation Platform
• Integrated Test System
Ultra precision mold processing capability
- Diamond Turning and Machining – Freeform 705G
- SD-turning Chuck Diameter 10um; （ Industry general level 20um）
- Groove Peak R<3um, Groove valley R<12um; （Industry general level: Groove Peak R>5um，Groove valley R>20um）
- Feed rate<10um; （ Industry general level >10um）
- The parallelism deviation between the turning profile shape and the ideal profile should be less than 1°.
Manufacturing capability of precision PIR inserts
- Diamond Turning and Machining – Freeform 705G
- SD-turning Chuck Diameter 10um; （ Industry general level 20um）
- Groove Peak R<3um, Groove valley R<12um; （Industry general level: Groove Peak R>5um，Groove valley R>20um）
- Feed rate<10um; （ Industry general level >10um）
- The parallelism deviation between the turning profile shape and the ideal profile should be less than 1°.
STANDARD AUTO-WALK TEST LAB
- Automatic scanning configurated parameters test system;
- Support simultaneous testing of six samples;
- Four axis automatic control and regulation;
- Full size testing human with programmable speed, step and temperature;
- One click start test and generate test report;
- An optical darkroom with thermal insulation around the laboratory;
- Test repeatability deviation is less than 5%.
The setting of automation system
- Up to six channels co-test;
- Temp. setting of the simulator(eight area) and state feedback;
- Temp. setting of the environment temperature,
- The setting of mount height and angle of inclination;
- Pattern setting(size, step spacing, speed);
- Repetition measurement;
- Interrupt request.
Original automatic multi wheel scanning system with configurable parameters
- Automatic scanning
- parameter configuration
- Parameter Type:Installation height; Installation angle; Ambient temperature; Sensitivity; Motion speed; Step length
- Multi round automatic test
- Automatic output of detection report
Feature:
Hit the integration of demand, design and walking test
The integration of demand, simulation and walking test is the most direct embodiment of PIR R&D capabilities. It includes the ability of simulation design, the accumulation of industry experience, the understanding of product application scenarios, and the reflection of testing rigor.
Detect Range of Demand
Detect Range of design
Detect range of walking test
Coincidence of walking test and simulation data in products
Detect Range of design
Automatic walking test data
Coincidence of design and test
Part of our product
Customized design services based on customer needs
We can adjust the design based on user scenarios, so that the product has a better user experience.
Scenario 1: The detection distance varies with the vertical installation angle of product.
Scenario 1: The detection distance does not change with the vertical installation angle of product.
Meet the requirements of anti false alarm triggering design
The two most important performance indicators of PIR are false triggering and missed triggering, while the design of industry general level is generally designed and tested only for missed triggering. Because there is no relevant industry rule to evaluate the false triggering, the user experience of false triggering is poor when PIR is used to achieve energy-saving control, intelligent control, etc. Based on the comprehensive evaluation and design, we make the false triggering and missed triggering of products have ideal performance.
PIR fault analysis and anti-interference capability
For many outdoor applications, scene state may seriously affect the detection performance of PIR. For example, under normal circumstances, the ambient temperature is very uniform, the temperature difference between people and the environment is well defined, and PIR works normally. When the situation shown in the right figure occurs, although the ambient temperature is about 20 ° C, it is very suitable for PIR to work, but the ground temperature reaches 29 ° C, which is close to the human temperature.At this time, if PIR is detected through the lower part of the human body, it is easy to miss triggering.
High performance PIR materials
After years of efforts, the PIR lens material we developed has significantly improved its far-infrared transmittance, visible light suppression and anti-aging effect. The colors include black, gray, milky white and translucent. Transmittance is focus on wavelength between 5um-14um。
Lens Materials Aging Study —— Real outdoor aging test analysis
--outdoor aging test have more accurate result than UV light + spray test.
Aging test environment 1
Aging test environment 2
Aging test environment 3
Occupancy detection
Based on PIR technology is the main technical means of intelligent lighting control
- Agoing trend that occupancy sensor is gaining application on energy conservation and providing automatic control. PIR sensor is very popular used for lighting control, HVAC(Heating, Ventilating and Air Conditioning), energy control, and so on.
- Now there are a great market to used one PIR sensor product to achieve security motion detection and occupancy detection.
Intelligent flood lighting
Smart doorbell
Energy-saving light control
Smart Camera
Intelligent control switch