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Категория: Passive Components >>>
Поставщик: Hangzhou Daohuozhe Technology Co. Ltd.

Цена:10,00 $*

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Характеристики

Diffraction gratings are periodic spatially modulated to the amplitude or phase (or both) of incident light through a periodic structure. Diffraction gratings can not only be used in spectroscopy, but also widely used in metrology, optical communication, information processing and other fields. There are many types of diffraction gratings, which can be divided into shining gratings, holographic gratings, rectangular gratings and so on.
AR augmented reality glasses can use diffraction gratings (also known as embossed gratings) to implement light waveguides. Compared with geometric optical waveguides, the use of embossed light grids can make AR glasses thinner and lighter, more suitable for applications in the field of consumer electronics. In order to maximize the efficiency of light coupling diffracted in the direction of the eye, the incident grating of AR lenses is best used slanted grating or a triangular blazed grating, but both of these gratings are very difficult to process.
In addition to providing a variety of commonly used diffraction grating standard products, TORCH BEARER can also provide customized processing services, especially AR waveguide gratings, including nanoscale helical grating and shining grating processing. We provide a full range of services from mold making, process development, and mass production.

Measuring Parameters/Advantages
Characteristic
1.Material			Glass/polymer
2. Structure			Regular or irregular microlens array
3.Blaze Wavelengths			400~500 nm
4.Grooves			Soda lime glass substrate,300-1200 scores/mm
5.Grating efficiency			up to 60%-80% at blazed wavelength
6. Low ghosting			main reflection<0.5%
7. Aluminum reflective film
8. Engraved base material production
Application
Mounts and Adapters			Rectangular Optics Mount (KM100C,KM100CL,POLARIS-K1,etc)

Reflective diffraction grating, blaze wavelength 300nm

Item#	Dimensions (W x H x D)	Blaze Wavelength	Grooves/mm	Blaze Angle	Dispersion
GR25-0303	25256 mm	300nm	300	2° 34'	3.33 nm/mrad
GR50-0603	50509.5 mm			600	5° 9'	1.67 nm/mrad
GR13-1203	12.712.76 mm			1200	10° 22'	0.82 nm/mrad

Reflective diffraction grating, blaze wavelength 400nm

Item#	Dimension (W x H xD)	Blaze Wavelength	Grooves/mm	Blaze Angle	Dispersion
GR25-1204	25256mm	400nm	1200	13° 53'	0.81nm/mrad
GR50-1204	50509.5mm	400nm	1200	13° 53'	0.81nm/mrad

Reflective diffraction grating, blaze wavelength 500nm

Item#	Dimensions (W x H x D)	Blaze Wavelength	Grooves/mm	Blaze Angle	Dispersion
GR13-0305	12.712.76	500nm	300	4° 18'	3.32 nm/mrad
GR25-0305	25256
GR50-0305	50509.5
GR13-0605	12.712.76			600	8° 37'	1.65 nm/mrad
GR25-0605	25256
GR50-0605	50509.5
GR13-1205	12.712.76			1200	17° 27'	0.80 nm/mrad
GR25-1205	25256			1200	17° 27'	0.80 nm/mrad

Reflective diffraction grating, blaze wavelength 750nm

Item#	Dimensions (W x H x D)	Blaze Wavelength	Grooves/mm	Blaze Angle	Dispersion
GR13-0608	12.712.76 mm	750 nm	600	13° 0'	1.62 nm/mrad
GR25-0608	25256 mm
GR50-0608	50509.5 mm
GR13-1208	12.712.76 mm			1200	26° 44'	0.74 nm/mrad
GR25-1208	25256 mm			1200	26° 44'	0.74 nm/mrad