A dual-polarization distribution optical system and a lamp with a light-reflecting cup and a lens combination

Abstract

The utility model relates to the technical field of lighting, especially in kind of double polarized distribution optical system and lamps and lanterns of the combination of reflector cup and lens, optical system includes reflector cup, lens, with the light outlet of reflector cup corresponds, the lens has first polarized part and second polarized part, first polarized part is used for polarized light to first side to second polarized part for polarized light to second side opposite to first side. The double polarized distribution optical system of the combination of reflector cup and lens can make the light of the same light source can illuminate two sides simultaneously, need not set up two groups of light source respectively, can satisfy the illumination need of two target areas under the condition of reducing cost and volume, uses the combination of reflector cup and lens to realize bidirectional polarized light, can effectively improve light utilization, improve the illumination of two target areas, satisfy the illumination need under the condition of reducing energy consumption.

Claims

1. A dual-polarization optical system combining a reflector and a lens, characterized in that, include: Reflector (1); The lens (2) corresponds to the light outlet (12) of the reflector (1). The lens (2) has a first polarizing part and a second polarizing part. The first polarizing part is used to polarize the light to a first side, and the second polarizing part is used to polarize the light to a second side opposite to the first side.

2. The dual-polarization optical system of the reflector and lens combination according to claim 1, characterized in that, The lens (2) has an incident surface (21) and an exit surface (22). The incident surface (21) is opposite to the light outlet (12) of the reflector (1). The incident surface (21) has a concave region. The concave region is provided with a first incident surface (211) and a second incident surface (212) arranged sequentially along a first direction.

3. The dual-polarization optical system of the reflector and lens combination according to claim 2, characterized in that, On a cross section parallel to the first direction and the principal optical axis (25): the first incident surface (211) is inclined relative to the principal optical axis (25) of the lens (2), and / or the second incident surface (212) is inclined relative to the principal optical axis (25) of the lens (2), and there is a bend at the junction of the first incident surface (211) and the second incident surface (212).

4. The dual-polarization optical system of the reflector and lens combination according to claim 2, characterized in that, The boundary line between the first incident surface (211) and the second incident surface (212) is a curve that is high at both ends and low in the middle; the first incident surface (211) and the second incident surface (212) are symmetrical with respect to the central axis surface, and the central axis surface passes through the boundary line between the first incident surface (211) and the second incident surface (212).

5. The dual-polarization optical system of the reflector and lens combination according to claim 2, characterized in that, The incident surface (21) is a curve with high ends and low middle on a cross section perpendicular to the first direction.

6. The dual-polarization optical system of the reflector and lens combination according to claim 2, characterized in that, The exit surface (22) is a plane; a reflecting surface (23) is provided between the incident surface (21) and the exit surface (22), and the reflecting surface (23) is used to reflect light to the exit surface (22). The exit surface (22) is rectangular, and the four reflective surfaces (23) surround the exit surface (22). The end of the first incident surface (211) away from the second incident surface (212) has a first convex surface (215), which is used to focus light onto the corresponding reflecting surface (23). The end of the second incident surface (212) away from the first incident surface (211) has a second convex surface (216), which is used to focus light onto the corresponding reflecting surface (23).

7. The dual-polarization optical system of the reflector and lens combination according to any one of claims 2-6, characterized in that, The inner wall of the reflector cup (1) includes a first reflective surface (13) and a second reflective surface (14) arranged opposite to each other. The first reflective surface (13) is opposite to the first incident surface (211), and the second reflective surface (14) is opposite to the second incident surface (212).

8. The dual-polarization optical system of the reflector and lens combination according to claim 7, characterized in that, The inner wall of the reflector cup (1) also includes a third reflective surface (15) and a fourth reflective surface (16) arranged opposite to each other, and the first reflective surface (13), the second reflective surface (14), the third reflective surface (15) and the fourth reflective surface (16) enclose an inner cavity; The light inlet (11) and light outlet (12) of the reflector cup (1) are both rectangular, and the rectangular sides of the light inlet (11) and light outlet (12) are set accordingly. The reflective surface is connected to the rectangular sides of the light inlet (11) and light outlet (12).

9. The dual-polarization optical system of the reflector and lens combination according to any one of claims 2-6, characterized in that, The incident surface (21) is provided with an optical microstructure (213); the optical microstructure (213) is a compound eye structure.

10. A lamp, characterized in that, The system includes a light source and a dual-polarized optical distribution system consisting of a reflector and a lens as described in any one of claims 1-9, wherein the light source is located on one side near the light inlet (11) of the reflector (1).

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