Method for design and manufacturing of optics for holographic sight
View Patent ↗A method for design and fabrication of holographic optical elements for a compact holographic sight is proposed. The method includes use of ray-trace software to design holographic elements having optical power using an intermediate hologram with parameters obtained through minimization of the merit function defining image quality.
1. An optical device comprising a holographic gunsight comprising: an optical element having a light guide plate; a first and a second coupled holographic optical element paired with a transparent plate with a reticle; an LED module with a diffuser for reticle illumination; a switch incorporated on the LED module that switches between colors of light from the LED module; and a damped least square optimized intermediate holographic element.
2. The optical device of claim 1 wherein a hologram is secured to a substrate.
3. The optical device of claim 2 wherein the substrate is substantially transparent in at least a portion.
4. The optical device of claim 1 wherein the holographic optical element is selected from the group consisting of reflector type, transmissive type and a combination of said types.
5. The optical device of claim 1 wherein the reticle is on the same side as the holographic optical element.
6. The optical device of claim 1 wherein the reticle is on the side opposite the holographic optical element.
7. The optical device of claim 1 wherein the LED module comprises multiple LED modules.
8. The optical device of claim 1 wherein the LED comprises a band emission of about 20-25 nm.
9. The optical device of claim 1 further comprising a flat fold mirror placed between the reticle and the holographic element.