HOEs and DOEs
Also see a sample of Common DOE surfaces
- Complete Spectrograph designs and brassboard prototypes,
diffractive component production for the same
- Transmission gratings from 10 to 4000 l/mm, plane,
slanted, crossed, cophasal, multiplexed spatially or stacked in volume
from spectroscopic instrument to light show quality, in DCG, photopolymer,
resist or plastic replicas.
- Powered transmission HOEs of f/2 or greater with low aberrations,
apertures to 1 meter and wavelengths from 355 to 1064 nm, for
LIDAR
applications.
- Off axis Multifocus hololens and flys eye arrays,
optical interconnects and general multiplexed powered optics.
"Catadioptric HMD"
- Narrow Notch filters from 400 to 900 nm, 10 to
40 nm bandwidth, Optical densities to 5 or 6 in 30 microns of DCG.
- Directional diffusers, dipixelators and homogenizers
in virtually any configuration, (design, fabrication, and production).
- HUD and HMD components including conformal multiwavelength
combiners on CR 39 or glass of any radius.
- TIR gratings for photon buckets, edge lighting,
polarizing.
"Transmissive Grating Spectrograph"
- Bidiffringent polarization separator that works
in a Wollaston configuration and broadband planer polarization splitters.
- Complete ZEMAX optical designs including binary
surfaces, masks and phase only replicas in volume or surface media.
- Hybrid refractive/diffractive design and fabrication.
"Powered Laser Scanner"
- In-house lithographic photoreduction for some DOE production.
- Conversion of customer generated amplitude masks to efficient phase DOEs and HOEs.
- IR gratings for 3 to 12 microns in slumped amorphous IR glasses.
- Addition of high frequency carriers to low angle CGHs.
The odds are in your favor, that we can make the HOE you need.
Advantages of DOEs
- Simultaneous performance of several functions
such as deflection, focusing, filtering, and collimating as in bar code scanners.
- Parallel performance of similar or different functions such as the multifocus Hololens array for parallel pattern recognition.
- Ease of stacking elements such as multi-wavelength solar reflectors.
- The formation of optics on curved substrates such as heads up displays on visors or curved windshields.
- Weight and volume of a holographic system is likely to be less than refractive optics, especially for large apertures.
- Ease of replication makes production fast, inexpensive and relatively simple.
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Last modified on 9/16/97