Optical system
Patent Information
- Application Number
- TW115204053
- Authority / Receiving Office
- TW · TW
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2026-05-07
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2036-05-06
Smart Images
Figure 00000000_0000_ABST
Abstract
Claims
1. An optical system, comprising: A display element having a first display area and a second display area, respectively for emitting a first image beam and a second image beam; A first optical module, disposed on the transmission path of the first image beam, includes: a first lens group; and a first reflecting element and a second reflecting element, respectively disposed on both sides of the first lens group, wherein the first image beam is sequentially reflected by the first reflecting element, passes through the first lens group, and is reflected by the second reflecting element; and a second optical module, disposed on the transmission path of the second image beam, includes: a second lens group; and a third reflecting element and a fourth reflecting element, respectively disposed on both sides of the second lens group, wherein the second image beam is sequentially reflected by the third reflecting element, passes through the second lens group, and is reflected by the fourth reflecting element.
2. The optical system as described in claim 1, further comprising: A first waveguide element, wherein the first image beam is sequentially reflected by the first reflecting element, passes through the first lens group, is reflected by the second reflecting element, and is coupled into the first waveguide element; and a second waveguide element, wherein the second image beam is sequentially reflected by the third reflecting element, passes through the second lens group, is reflected by the fourth reflecting element, and is coupled into the second waveguide element.
3. The optical system of claim 1, wherein the first lens group has an incident light side near the first reflective element and an exit light side near the second reflective element, the first lens group sequentially including a first lens, a second lens, a third lens and a fourth lens from the exit light side to the incident light side, and each of the first lens to the fourth lens includes an incident light surface facing the incident light side and allowing the first image beam to pass through and an exit light surface facing the exit light side and allowing the first image beam to pass through.
4. The optical system of claim 3, wherein the first lens has a positive refractive index, the second lens has a negative refractive index, the third lens has a negative refractive index, and the fourth lens has a positive refractive index.
5. The optical system as claimed in claim 3, wherein the first lens has the largest refractive index among the first lens, the second lens, the third lens, and the fourth lens.
6. The optical system of claim 3, wherein the combination of the first lens and the second lens has an equivalent focal length, the first optical module has an equivalent focal length, and...
7. The optical system as claimed in claim 1, wherein the first optical module further comprises: A first aperture stop, wherein the first image beam is sequentially reflected by the first reflective element, passes through the first lens group, is reflected by the second reflective element, and passes through the first aperture stop; the distance from the first aperture stop to the first display area of the display element on an optical axis of the optical system is, and.
8. The optical system as claimed in claim 1, wherein the first optical module further comprises: A first aperture stop is provided, wherein the first image beam is sequentially reflected by the first reflective element, passes through the first lens group, is reflected by the second reflective element, and passes through the first aperture stop; the distance from the first aperture stop to the first display area of the display element on an optical axis of the optical system is given; the first optical module has an equivalent focal length, and 9. The optical system of claim 1, wherein the first lens group has an incident light side near the first reflecting element and an exit light side near the second reflecting element, the first lens group including a first lens, the first lens including an incident light surface facing the incident light side and allowing the first image beam to pass through and an exit light surface facing the exit light side and allowing the first image beam to pass through, the first optical module further including: A first aperture stop, wherein the first image beam is sequentially reflected by the first reflective element, passes through the first lens group, is reflected by the second reflective element, and passes through the first aperture stop; the diameter of the first aperture stop is such that the first aperture stop and the light-emitting surface of the first lens have a distance on an optical axis of the optical system, and.
10. The optical system of claim 1, wherein the first lens group has an incident light side near the first reflective element and an exit light side near the second reflective element, the first lens group sequentially includes a first lens, a second lens, a third lens and a fourth lens from the exit light side to the incident light side, and each of the first lens to the fourth lens includes an incident light surface facing the incident light side and allowing the first image beam to pass through and an exit light surface facing the exit light side and allowing the first image beam to pass through, the diameter of the first display area of the display element is , the distance between the first display area and the incident light surface of the fourth lens on an optical axis of the optical system is T, and .