A short-pass filter, also called a low-pass filter in some cases, is an optical device that allows shorter wavelengths of light to pass through while blocking longer wavelengths. This type of filter is essential in a variety of scientific, industrial, and technological applications that require…
Optical filters are indispensable components in optical systems, used to select light of a specific wavelength or block unwanted light. Among the performance parameters of filters, cut-off depth (Optical Density, OD value) is a crucial indicator, which directly determines the filter’s ability to block non-target…
A narrowband filter is an optical filter designed with a narrow bandwidth. It is a type of bandpass filter that can selectively transmit light in a very narrow specific wavelength range while blocking light of other wavelengths. Its core feature is that the bandwidth is…
Together we will create a photoelectric future – Invite you to attend the 2025 APE Asia Photoelectric Expo Dear domestic and foreign customers, partners and fellow optoelectronics enthusiasts:In this era of rapid technological development, optoelectronic technology, as a key force in promoting global industrial upgrading…
In the field of optics, optical filters are endowed with unique optical properties through their special construction materials and film materials, and different optical filters have different actual performance. Today we will talk about a classification of cut-off filters, long-wave pass filters. Among various types…
Photonics West 2025 in San Francisco has come to a successful conclusion and Giai is proud to be a participant in this great event. As a leading manufacturer of optical components, including optical filters, optical lenses, and optical prisms, we are excited to showcase our…
In the field of optics, filters are widely used in various optical instruments and equipment as an important optical element. Among them, long pass filters (LPF, also known as high pass filters, HPF) have become an indispensable part of the optical field with their unique…
Infrared filters, as a specially designed optical device, allow infrared light within a specific wavelength range to pass through while blocking other wavelengths of light, especially visible light and ultraviolet light. The working principle of this filter is based on the selective absorption and transmission…
In the field of optics, optical filters play a crucial role in manipulating light. They are widely used in various applications, from scientific research to everyday devices such as cameras and display screens. Understanding the principle and characteristics of optical filters can help us better…
Optical prism, as an important component in the field of optics, plays an irreplaceable role in various optical instruments due to its diverse structures and functions. This article will explore in depth the classification of optical prisms and their unique role in various application scenarios.…
Dear Esteemed Colleagues and Partners, On behalf of GIAI, a leading manufacturer of optical lenses, we are thrilled to extend our sincere invitation to you and your company representatives to participate in the prestigious SPIE.Photonics West 2025 exhibition. This prestigious event serves as a pivotal…
Optical indicators Transmittance band: 520nm-1100nmMinimum transmittance: T>90%Central wavelength: 510nm±3Cut-off band: 200nm-500nmCut-off depth: T<0.1% (customizable)Surface finish: National standard level 3, US military standard 40-20 (scratches/pitting) Spectrum Applications Beauty instruments: Long-wave pass filters are widely used in beauty instruments, such as photon rejuvenation instruments. They can selectively…
