Bandpass filter
A type of optical filter that transmits any specific wavelengths and blocks out other unnecessary light.It is possible to set any central wavelength (transmission wavelength) from the ultraviolet to infrared range, and create a custom setting for the half-width, stop band, etc.It has been used for analytical equipment, medical equipment, sensors, exposure machines, etc. Infrared Bandpass Filters Near-infrared to far-infrared bandpass filters are optical components that are widely used in optical communications,industrial equipment, medical equipment, gas concentration sensors, etc.We receive many requests for wavelengths such as 1550nm, 1064nm, 2.75㎛, 3.3㎛, 4.25㎛, and 4.75㎛.We have an infrared spectrophotometer to evaluate down to 20μm.This product is also useful in the security…
Pattern deposition
(Photolithography process)
Precision patterning can be achieved using photoresist and lift-off or etching. Feature sizes down to 3 µm can be achieved, depending on the type of coating required.Furthermore, depending on the conditions, a size of 1 μm is also possible. ①Work environment/Equipment We will manufacture filters/mirrors with high-precision patterns in combination with various deposition technologies. Super clean room ISO class 1 [Process Flow] *Equipment introduction Maximum supported size: Φ6in / Maximum substrate thickness: 25mm (Include prism) ②Pattern accuracy (Dichroic film L/S) Accuracy up to L/S = 1 μm is possible ③Boundary accuracy (A faint outline) Comparison with metal mask (our comparison) ④Pattern example 1)Dichroic coat/shading film …