Engineers usually reach the question of how to calculate F-theta scan field size at one of two moments: when a marking field has to cover a part of known dimensions, or when a calculated field does not agree with the number printed on a lens…
The practical difference in an F-theta lens vs standard focusing lens comparison is the job each optic is designed to perform. A standard focusing lens is normally chosen to form a good focus at one on-axis location, or within a limited field defined by its…
In an f-theta scanning system, spot size and input beam diameter are inversely related: double the collimated beam diameter at the lens, and the focused spot diameter halves. That single relationship is the reason a beam expander sits between almost every laser and every galvanometer…
F-theta distortion and field curvature are both field-dependent errors in a laser scan lens, but they fail in completely different ways. F-theta distortion is a position error: the focused spot lands somewhere other than where the scan angle says it should, while staying sharp. Field…
When specifying a mirror, beamsplitter, filter, or other coated optical component, choosing between a dielectric coating and a metallic coating is not simply a question of which one has higher reflectivity. The two coating families produce optical behavior through different physical mechanisms. Metallic coatings are…
If your search starts with “dichroic mirror for fluorescence manufacturer,” the most important question is not simply who can supply the optic. The engineering task is to determine whether the dichroic mirror has the correct spectral transition, reflectance and transmission bands, angle-of-incidence behavior, polarization performance…
In recent years, the sales growth of new energy vehicles has continuously driven the sales of vehicle configurations. Among them, the more popular head-up display (HUD) technology has gradually become an important focus of OEMs and has been widely used in various mass-produced models. Market…
Infrared temperature measurement filters are optical filters specially designed for infrared bands and are commonly used in non-contact temperature measurement equipment. They can selectively transmit infrared radiation and filter out interference light from other bands, thereby achieving high-precision temperature detection. This article will introduce in…
Narrowband filter is a special bandpass filter with a narrow passband range. It can accurately control the transmission of light of a specific wavelength and block light of other wavelengths. Usually, the half-width (i.e. bandwidth) of the passband of a narrowband filter is between a…
Searching for a custom optics manufacturer in China usually means the optical function is already known, a drawing exists, or a prototype needs to be converted into a repeatable production component. The difficult part is not finding a company that can make a lens, filter,…
A custom biochemical analyzer filter is an optical filter designed for a specific analyzer optical path, reagent wavelength, detector response, mechanical size, and performance requirement. In biochemical analyzers, clinical chemistry instruments, ELISA readers, and filter photometers, the filter helps isolate the wavelength used for absorbance…
A custom beauty instrument optical filter is a coated optical component designed to transmit, block, attenuate, or reflect selected wavelength ranges inside an IPL, laser, LED, imaging, sensing, or medical-aesthetic device. The correct filter cannot be selected from a cutoff wavelength alone. Medical device manufacturers…
