Lighting and imaging integrated device light path

Abstract

The invention discloses an illumination and imaging integrated device light path. The illumination and imaging integrated device light path comprises an illumination group and an imaging group. And the output of the illumination group is directly used as the input of the imaging group. And the output of the illumination group is the object plane of the imaging group. The output of the illumination group is configured to be a cambered surface, and the cambered surface protruding towards the imaging group is preferably selected. The illumination and imaging integrated device has the beneficial effects that the light path of the illumination and imaging integrated device does not control field curvature at all, so that the object plane of the imaging group is a cambered surface, and the difficulty of imaging design is reduced.

Description

Technical Field

[0001] This invention relates to the field of precision lighting, and in particular, to an optical path for an integrated lighting and imaging device. Background Technology

[0002] An integrated illumination and imaging device comprises an illumination group and an imaging group. Current practices involve designing the illumination group and imaging group separately, setting requirements for the illumination output and the imaging optical path itself, such as requiring the imaging optical path to have the lowest possible aberrations. Summary of the Invention

[0003] The purpose of this invention is to provide an optical path for an integrated illumination and imaging device for precise angle control.

[0004] To achieve the above objectives, the present invention provides a technical solution: an optical path for an integrated illumination and imaging device, comprising: an illumination group and an imaging group. The output of the illumination group is directly used as the input of the imaging group. The output of the illumination group is the object surface of the imaging group. The output of the illumination group is configured as an arc surface, preferably convex to the arc surface of the imaging group.

[0005] As a preferred embodiment of the optical path of the integrated lighting and imaging device, the lighting group includes: an LED light source group, a TIR lens group, and an arc-shaped light guide plate; the LED light sources of the LED light source group and the TIR lenses of the TIR lens group are in a one-to-one correspondence; the end face of the arc-shaped light guide plate relative to the LED light source group is flat, and the end face of the arc-shaped light guide plate opposite to the LED light source group is curved.

[0006] As a preferred optical path design for the integrated lighting and imaging device, the LED light source group emits light of different colors. The lighting group further includes a light-blocking sheet, through which the different colors of light are separated. This design is applicable to aircraft angle indicators.

[0007] As a preferred embodiment of the optical path of the integrated illumination and imaging device, the imaging group includes an aperture stop. The aperture stop is not located at the foremost or last position of the imaging group.

[0008] Compared with the prior art, the beneficial effects of the present invention are at least as follows: the optical path does not control the field curvature at all, so that the object surface of the imaging group is an arc surface, reducing the difficulty of imaging design. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0010] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention.

[0011] Figure 3This is a schematic diagram of light emission from an embodiment of the present invention.

[0012] Figure 4 These are schematic diagrams illustrating different colors of light emission in embodiments of the present invention.

[0013] Figure 5 This is a schematic diagram of light propagating to a distant location according to an embodiment of the present invention. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. It should be noted that these descriptions of embodiments are intended to aid in understanding the invention and do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0015] See Figure 1 The figure shows the optical path of an integrated illumination and imaging device. The optical path includes an illumination group and an imaging group. The output of the illumination group is directly used as the input of the imaging group. The object surface of the imaging group is designed as a curved surface, preferably convex to the curved surface of the imaging group.

[0016] See Figure 2 The illumination group 1 includes an LED light source group 11, a TIR lens group 12, and an arc-shaped light guide plate 13. The LED light source group 11, the TIR lens group 12, and the arc-shaped light guide plate 13 are arranged sequentially from left to right. The LED light sources of the LED light source group 11 correspond one-to-one with the TIR lenses of the TIR lens group 12. The end face of the arc-shaped light guide plate 113 relative to the LED light source group 11 is flat. The end face of the arc-shaped light guide plate 113 opposite to the LED light source group 11 is curved. The light emitted from the LED light source group 11 passes through the TIR lens group 12 and the arc-shaped light guide plate 13 to form the object plane of the imaging group.

[0017] See also Figure 2 The imaging group 2 includes an aperture stop 21, etc. The aperture stop 21 is typically not located at the foremost or last position. That is, the aperture stop 21 is after the foremost lens 22 and before the last lens 23.

[0018] See Figure 3 The arc surface is convex toward the imaging group 2, which is more conducive to the light passing through the aperture 21 of the imaging group 2.

[0019] See Figure 4The lighting group 1 includes: a first row of red LED light sources and TIR lenses; a second and third row of green LED light sources and TIR lenses; and a fourth and fifth row of blue LED light sources and TIR lenses. Light-blocking sheets are provided between the TIR lenses in the first and second rows, and between the TIR lenses in the third and fourth rows, to separate the emitted light of different colors.

[0020] See Figure 5 The figure shows Figure 4 The image shows the light propagating to a distance. It is evident that the three colors are arranged closely in sequence in the far field without any overlap, and the overall image maintains a curved surface.

[0021] The above description merely illustrates embodiments of the present invention and is quite specific and detailed; however, it should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An optical path for an integrated illumination and imaging device, characterized in that, include: An illumination group and an imaging group are provided, with the output of the illumination group directly serving as the input of the imaging group. The output of the illumination group is the object surface of the imaging group, and the output of the illumination group is configured as an arc surface, preferably convex to the arc surface of the imaging group.

2. The optical path of the integrated illumination and imaging device according to claim 1, characterized in that, The lighting assembly includes an LED light source assembly, a TIR lens assembly, and an arc-shaped light guide plate. The LED light sources of the LED light source assembly and the TIR lenses of the TIR lens assembly are in a one-to-one correspondence. The end face of the arc-shaped light guide plate relative to the LED light source assembly is flat, and the end face of the arc-shaped light guide plate opposite to the LED light source assembly is curved.

3. The optical path of the integrated illumination and imaging device according to claim 2, characterized in that, The LED light source group emits light of different colors.

4. The optical path of the integrated illumination and imaging device according to claim 3, characterized in that, The lighting assembly further includes a light-blocking sheet, through which different colors of light are separated.

5. The optical path of the integrated illumination and imaging device according to claim 1, characterized in that, The imaging group includes: an aperture.

6. The optical path of the integrated illumination and imaging device according to claim 5, characterized in that, The aperture is not located at the foremost or last position of the imaging group.

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