Industrial Machine Vision Ring Light Dark Field 3 Series

Ring light dark field are industrial LED lights for illuminating products in machine vision

applications like surface defects on metal parts, edge detection of metal objects, inspection of PCB components and positioning and recognition of objects. Our ring light dark field are available in different sizes and light colors. The standard colors are White, Red, Green or Blue. On request also UV and IR ring light dark field are possible. If you can't find the right size, we can customize the ring light dark field combined to fit your illumination request.Click here for the datasheets.

When to use ring light dark field in your machine vision application?

Ring light dark fields are the most commonly used lights in machine vision applications. They are very versatile. You can use them in combination with our industrial cameras in computer vision applications where you are inspecting:

Objects that are flat and you want to measure edges or detect surface defects
Objects that are round

In case an object is not flat and reflective, we strongly recommend using a dome light for illuminating your product.

How to use ring light dark field for illumination in computer vision

Ring light dark field are commonly used in machine vision applications. We recommend using the power supplies as indicated in the datasheet to control the brightness of the ring light dark field. Additionally, these power supplies give you the option to trigger the ring light dark field. Triggering the ring light dark field will increase the lifespan of the ring light dark field combined.

Overview of ring light dark field

Model	Color	LED Rows	Voltage	Angle	Power (R)*	Power (W)*	Power (B/G)*	Dimensions (mm)	Weight (gram)	Express Stock
VA1-RLDF3-50-30	W/R/G/B	2	24V	30	1.8	2.6	2.6	50x24x16	53	No
VA1-RLDF3-66-30	W/R/G/B	3	24V	30	4.4	4.4	4.4	66x30x22	122	No
VA1-RLDF3-74-30	W/R/G/B	2	24V	30	3.5	5.1	5.1	74x48x19	86	No
VA1-RLDF3-100-30	W/R/G/B	3	24V	30	7.7	9.5	9.5	100x70x22	150	No
VA1-RLDF3-120-30	W/R/G/B	3	24V	30	10	11.9	11.9	120x88x22	190	No
VA1-RLDF3-132-15	W/R/G/B	3	24V	15	8.9	13.1	13.1	132x96x22	260	No
VA1-RLDF3-150-30	W/R/G/B	4	24V	30	15.2	15.2	15.9	150x120x22	270	No
VA1-RLDF3-180-30	W/R/G/B	5	24V	30	20.5	20.5	20.5	180x132x29	471	No
VA1-RLDF3-208-25	W/R/G/B	3	24V	25	13.9	19.2	19.2	208x172x22	443	No
VA1-RLDF3-50-00	W/R/G/B	1	24V	0	0.9	2.2	1.5	50x18x10	43	No
VA1-RLDF3-75-00	W/R/G/B	1	24V	0	1.3	3.3	2.4	75x43x10	70	No
VA1-RLDF3-96-00	W/R/G/B	1	24V	0	2.6	5.2	3.4	96x64x10	90	White
VA1-RLDF3-120-00	W/R/G/B	1	24V	0	2.6	5.7	4.4	120x88x10	120	No
VA1-RLDF3-146-00	W/R/G/B	1	24V	0	3.5	7.9	5.3	146x114x10	164	No
VA1-RLDF3-176-00	W/R/G/B	1	24V	0	5.2	10	6.7	176x144x10	200	No
VA1-RLDF3-206-00	W/R/G/B	1	24V	0	5.2	11.3	8.16	206x174x10	239	No

*Tolerance +/- 10%

Delivery time
If the ring light dark field is on express stock and you order with express handling, it will be shipped in 1-2 days.
If the ring light dark field is not on express stock, it has to be custom produced and will be shipped after 4-6 weeks.

Download ring light dark field datasheet

In our ring light dark field datasheet you find the mechanical dimensions, wavelengths, operating temperature, compatible power supplies and so on. Login using your email address and get instantly access to our ring light dark field datasheets.

Production and quality control of ring light dark field

Our LED ring lights dark field are produced with a strict process of quality control, to ensure their reliability and consistency. Upon receiving a new batch of LEDs, the quality department completes a comprehensive check to test whether the wavelength falls within the specified tolerances. Approved LEDs are stored in a climate chamber, ready for use in production. The next stage of ring light dark field production is automated and involves placing the LEDs on a PCB that fits the ring light dark field, which is then followed by an inspection and soldering. Moving along the production line, the LED boards are assembled into the mechanical housing of the ring light dark field. Post-assembly, the ring light dark field undergoes testing to ensure that performs according to its specification. This critical phase ensures that each ring light dark field unit meets our uncompromising quality standards.

The production process of the ring light dark field may also include the creation of a diffuser or polarizer. The diffuser is cut automatically, and every batch of diffuser plates undergoes transparency testing before they are cut into the correct shape. The final step involves a comprehensive quality check, where the intensity, voltage, and current of each ring light dark field are meticulously measured. This step guarantees that all machine vision lights that leave our facility meet the required specifications. To further ensure the long-term consistency of our ring light dark field, we have established a room dedicated to light-source age testing.

During the R&D phase of a new ring light dark field, it will be continuously on for 1 week, while the temperature is monitored. For every new production run, each ring light dark field will be continuously powered for 12 hours, ensuring that the quality and output of our machine vision lights remain uniform over time.

Previous product number: LED1-RL