Detectors » Chips 4 Light

Welcome to your leading supplier for technologically advanced chip-based photodetectors

A photodetector is much more than an ordinary sensor. It forms the heart of modern optoelectronic systems. These components are electrically integrated and convert visible and invisible light into electrical signals with extreme precision. These signals can be used in many areas. Detectors are indispensable for capturing and using light in optoelectronics. They make it possible to measure, amplify and analyze light signals. This is especially important for applications in the following areas, among others:

Communication
Metrology
Medicine
Image processing
Sensor technology

You are a physicist and dive deep into the world of light quanta? Or are you an engineer looking for innovative detection solutions? Our photodetectors offer you the features you need. Our wide range includes photodiodes and phototransistors, detector arrays and phototsensitive detectors specifically designed to detect and process photons with the highest sensitivity.

Thanks to our many years of experience in handling detectors, you can be sure that our products meet the highest quality standards. Get a comprehensive overview of our product range and the variety of applications our photodetectors support.

Our expertise enables us to deliver advanced photodetectors that meet the challenges of your applications. It doesn't matter if the application is medical imaging, optical sensors or next generation communications. We have the right solution for every challenge when it comes to photodetectors.

Let's shape the optoelectronic future together. With our high-performance photodetectors, we lay the foundation for your innovative production. Together, we can ensure that you take advantage of these high-performance photodetectors and give your applications a decisive edge.

Product	Wavelength of max. Sensitivity	Spectral Bandwith	Angle of Sensitivity	Photo Sensitive Area	Dimension
LA PD120AP1	560 nm	390 - 800 nm	120 °	7.700 mm²	2.97 x 2.97. x 0.28 mm³
LA PD28AP1	560 nm	390 - 800 nm	120 °	0.270 mm²	0.72 x 0.72 x 0.28 mm³
LA PD28AP2	570 nm	430 - 700 nm	120 °	0.270 mm²	0.72 x 0.72 x 0.28 mm³
LA PD28AP3	570 nm	440 - 700 nm	120 °	0.340 mm²	0.72 x 0.72 x 0.2 mm³
LA PT28AP1	570 nm	440 - 800 nm	120 °	0.250 mm²	0.72 x 0.72 x 0.22 mm³
LA PT30AP1	570 nm	400 - 700 nm	120 °	0.280 mm²	0.75 x 0.75 x 0.185 mm³
LA PD15AP1	630 nm	440 - 650 nm	120 °	0.065 mm²	0.375 x 0.375 x 0.15 mm³
LA PD32HP1	780 nm	430 - 1100 nm	120 °	0.360 mm²	0.8 x 0.8 x 0.22 mm³
LA PD18HP1	800 nm	430 - 1100 nm	120 °	0.026 mm²	0.44 x 0.44 x 0.305 mm³
LA PD240BP1	800 nm	300 - 1100 nm	120 °	32.500 mm²	6.0 x 6.0 x 0.305 mm³
LA PD2612HP2	800 nm	580 - 1070 nm	120 °	0.053 mm²	0.67 x 0.3 x 0.28 mm³
LA PD2612HP1	810 nm	590 - 1010 nm	120 °	0.055 mm²	0.67 x 0.3 x 0.28 mm³
LA PT20HP1	825 nm	440 - 1070 nm	120 °	0.140 mm²	0.52 x 0.52 x 0.185 mm³
C4L-PD55S1	850 nm	400 -1100 nm	120 °	1.000 mm²	1.4 x 1.4 x 0.1 mm³
LA PD28NP1	850 nm	825 - 875 nm	120 °	0.292 mm²	0.7 x 0.7 x 0.22 mm³
LA PD29395HP1	850 nm	400 - 1070 nm	120 °	14.000 mm²	2.40 x 7.45 x 0.22 mm³
LA PD29395HP1	850 nm	400 - 1070 nm	120 °	14.000 mm²	2.40 x 7.45 x 0.22 mm³
LA PT18HP1	850 nm	400 - 1070 nm	120 °	0.038 mm²	0.45 x 0.45 x 0.185 mm³
LA PT40HP1	850 nm	400 - 1070 nm	120 °	0.550 mm²	1.0 x 1.0 x 0.185 mm³
LA PT22HP1	870 nm	400 - 1070 nm	120 °	0.110 mm²	0.55 x 0.55 x 0.185 mm³
LA PD3323HP1	880 nm	400 - 1100 nm	120 °	0.310 mm²	0.6 x 0.85 x 0.22 mm³
LA PD11052HP1	900 nm	430 - 1100 nm	120 °	2.500 mm²	1.32 x 2.79 x 0.305 mm³
LA PD120HP2	900 nm	430 - 1100 nm	120 °	7.100 mm²	2.97 x 2.97 x 0.305 mm³
LA PD165HP1	900 nm	430 - 1100 nm	120 °	15.400 mm²	4.2 x 4.2 x 0.35 mm³
LA PD200HP1	900 nm	430 - 1100 nm	120 °	21.700 mm²	5.04 x 5.04 x 0.305 mm³

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Photodetectors for your Applications

Our expertise enables us to deliver advanced photodetectors that are up to the challenges of your applications. It makes no difference whether it is for use in medical imaging, optical sensors or the next generation of communication. When it comes to photodetectors, we offer you the right solution for every challenge.

Optoelectronics is our expertise

Offer of miniaturized light sources
Special requirements, for example in sensor technology or medicine, often require particularly small light sources such as point light sources. We have an idea.
Specification for your project
In our range of extensive optoelectronic components we will find the right solution for you together.
Sorting according to customer specifications
At Chips 4 Light, we have the equipment to precisely sort the required quantity in the required specification on film, gel or waffle pack with our LED chip sorters.
Long-term storage
In our dry storage cabinet we store LED chips professionally in gel- or waffle-pack for a longer period of time to support the project runtimes of our customers.

Inquiry for Optoelectronics

We will gladly advise you!

Frequently asked questions

What is a Photodiode?

A photodiode is a semiconductor device that can turn light into electricity. When light hits it, electron-hole pairs are created. Together, these tiny particles can generate current that can be measured. People use photodiodes, for example, in systems for fast light communication, in devices that can measure light, in cameras, and in other areas. If several photodiode chips are put together in one module, then we speak of an array. These chips can have different sensitivities to different wavelength ranges of light, depending on the requirements, and can be available in different packages and configurations.

A PIN photodiode is a special type of photodiode used in photodetection. The name "PIN" is derived from the specific structure of the photodiode. The PIN photodiode consists of three main layers:

P-layer: this is the p- or positive-doped layer. It contains holes as charge carriers and has an excess of positively charged carriers.
I-layer: The I-layer is an intrinsic or undoped layer. This means that it does not contain charge carriers. This layer is usually made of a semiconducting material such as silicon. It acts as a space for the absorption of light energy.
N-layer: This is the n- or negatively-doped layer. It contains electrons as charge carriers and has an excess of negatively charged carriers.

The special design of the PIN photodiode has some advantages over normal photodiodes. The I-layer in the center makes the photodiode an "intrinsic" device. This means that it can operate without current. This reduces background electrical noise and allows the photodiode to respond faster and more sensitively.

By using PIN photodiodes, visible light can be stored and converted into electrical signals with high efficiency. This type of photodiode is often used in applications where high speeds and sensitivities are required. These include, for example, applications in optical communication technology, in fiber optic transmission systems and in high-quality optical sensors.

What is a Phototransistor?

A phototransistor is a combination of a transistor and a photodiode. It amplifies the generated light signal, enabling better sensitivity and controllability. Phototransistors are commonly used in photoelectric sensors, automatic lighting controls, and optical sensors. They are used to detect, measure and convert various types of radiation. Radiation refers to the propagation of energy through space in the form of particles or waves. There are several types of radiation, including electromagnetic radiation such as light.

Similar to a photodiode, the main function of phototransistors is to generate light into electrical charge carriers (electrons and holes) when light strikes the light-sensitive region of the device. The difference is that a phototransistor does not generate these charge carriers directly. Instead, it amplifies them through the transistor amplification effect.

Photomultipliers also play a role in light detection and amplification. A photomultiplier is a detector capable of measuring and amplifying even the smallest amount of light. It consists of a photocathode, which converts light into electrons, and a series of dynodes, which multiply these electrons to achieve a large gain. Because of this effect, photomultipliers are often used in applications where even weak light signals must be detected. This is the case, for example, in astronomical observation or in the measurement of particle radiation. While phototransistors are also used for light detection, photomultipliers, due to their effect of amplification, are particularly suitable for uses where the lowest light intensity must be measured.

What is an Ambient Light Sensor?

In contrast, an ambient light sensor works differently. It detects the strength of the ambient light and outputs signals that match it and adjusts brightness levels. These signals can be analog or digital and indicate how bright it is. You often find these sensors in devices like

smartphones
tablets
televisions

They help to automatically adjust the brightness of the display. Phototransistors, on the other hand, are used in situations where it is more complex to detect light. For example, in photoelectric sensors, optical switches and industrial applications.