The spectral sensitivity is increased by means of an interference filter (23) and/or an absorption filter (24).
According to the invention, an interference filter (3) is used in the optics, in order to stabilize the transmitted optical power to the centre wavelength of the interference filter (3).
The layer stack may be a Fabry-Perot interference filter.
Now, according to the present invention, interference filters (10) are provided that incorporate two band pass interference filters (12,14) into a single composite interference filter (10).
The interference layer (17) of the thin-film interference filter (15) has a first average thickness (d1) in the first zone (41).
Each of the pixels has a color filter for wavelength-separating the incident light by a multi-layer film interference filter.
The interference filter (13) and the at least two photo sensors (14) are arranged in the interior of the optical non-transparent housing (11), which interference filter (13) is arranged between the window (12) and the at least two photo sensors (14).
A reference beam is reflected by the interference filter along a reference path.
The invention also presents a procedure for producing a humidity- and/or vapour-sensitive interference mirror /edge filter/ or interference filter /band-pass filter/.
This interference filter layer is produced by high-vacuum vapour deposition.
The apparatus comprises an incandescent lamp comprising an optical interference filter coating attached thereto.
The 3D glasses comprise a first eyeglass and a second eyeglass, each of which is provided with an interference filter.
The radiation sensor further comprises an interference filter positioned over both the first and second pixels.
Each path after the beamsplitter (3) has an optical interference filter (4, 6) placed before a photodetector (5, 7).
The interference filter unit (20A) has: a first filter region (24) that corresponds to the light receiving surface (32a); and an annular second filter region (25) that surrounds the first filter region (24).
The interference filter unit (20A) has: a first filter region (24) that corresponds to the light receiving surface (32a); and an annular second filter region (25) that surrounds the first filter region (24).
The exciting light is removed by an interference filter (26) and only the fluorescent light (30) reaches the photodiode (28).
The other is thin film filter, which can be divided into thin film absorption filter and thin film interference filter.
The color location shift into the red region of the spectrum ensues via the interference filter.
An external cavity laser (10) employing a tapered, thin firm interference filter (26) as a tuning element.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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