CN217978674U

CN217978674U - LED light source light collecting and splitting lens for medical detector

Info

Publication number: CN217978674U
Application number: CN202221670175.XU
Authority: CN
Inventors: 喻玺; 吴登富; 张东标
Original assignee: Hangzhou Photographic Machinery Research Institute Co ltd
Current assignee: Hangzhou Photographic Machinery Research Institute Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-06
Anticipated expiration: 2032-06-30

Abstract

The utility model belongs to the optics field, concretely relates to LED light source light collecting beam splitting lens for medical treatment detector, including light collecting lens portion, light collecting lens portion is used for collecting light and output, and it has light collecting lens incident end and light collecting lens exit surface, a serial communication port, light collecting lens exit surface body coupling beam splitting lens portion of light collecting lens portion, the relative light collecting lens exit surface slope of beam splitting lens portion sets up, and it is used for receiving the light of light collecting lens portion input to the light reflex output that will receive. The utility model discloses set light collecting lens portion and beam splitting lens portion to a body structure, need not be equipped with special beam splitter in addition on the one hand like this, the cost is reduced, and on the other hand has reduced the volume, makes LED multichannel light source system's structure arrange compacter.

Description

LED light source light collecting and splitting lens for medical detector

Technical Field

The utility model belongs to the optics field, concretely relates to LED light source light harvesting beam splitting lens for medical treatment detector.

Background

The LED multichannel light source system can be applied to medical detection instruments and generally comprises an LED light source, a light collecting lens, a light splitting sheet and a light transmission medium device, wherein each channel comprises the corresponding LED light source, the corresponding light collecting lens and the corresponding light splitting sheet, the LED light source is used for emitting light, the corresponding light collecting lens is used for collecting the light, the corresponding light splitting sheet is used for reflecting the light, the light of each channel is finally input into the light transmission medium device and output by the light transmission medium device, and the light transmission medium device is an optical fiber or an optical waveguide.

The existing LED multi-channel light source system has the following problems:

each light collecting lens needs to be matched with one light splitting piece, the price of each light splitting piece is high, the cost is increased, the light splitting pieces and the light collecting lenses are separately arranged, the space requirement is high, and the LED multi-channel light source system is not compact in structural arrangement and large in size.

SUMMERY OF THE UTILITY MODEL

In order to make up the deficiency of the prior art, the utility model provides a technical scheme of LED light source light collecting beam splitting lens for medical treatment detector.

An LED light source light collecting and splitting lens for a medical detector comprises a light collecting lens part, wherein the light collecting lens part is used for collecting light and outputting the light and is provided with a light collecting lens incident end and a light collecting lens emergent surface.

Furthermore, the light splitting lens part is of a flat structure, and a plane of one side of the light splitting lens part facing the light collecting lens part is parallel to a plane of one side of the light splitting lens part backing to the light collecting lens part.

Further, the beam splitting lens part is of an elliptical columnar structure.

Furthermore, the beam splitting lens part and the light collecting lens exit surface form an angle of 45 degrees.

Further, the lower end of the spectral lens part is connected with the edge of the exit surface of the condenser lens.

Furthermore, a film coating layer is arranged on the plane of one side of the light splitting lens part, which faces to the light collecting lens part.

Furthermore, the light collecting lens part and the light splitting lens part are of an optical plastic integral injection molding structure.

Further, the light collecting lens part is a light collecting collimating lens which can collect light and output the light vertically.

Furthermore, the light collecting lens part is of a rotational symmetry structure, the outer diameter of the incident end of the light collecting lens is smaller than that of the emergent surface of the light collecting lens, and the bottom of the light collecting lens part is provided with a groove.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set light collecting lens portion and beam splitting lens portion to an organic whole structure, need not be equipped with special beam splitter in addition on the one hand like this, the cost is reduced, and on the other hand has reduced the volume, makes LED multichannel light source system's structure arrange compacter.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic view of the light path during use of the present invention.

Detailed Description

In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1-3, an LED light source light collecting and splitting lens for a medical detector includes a light collecting lens portion 100 and a splitting lens portion 101 integrally connected to the light collecting lens portion, which are integrally injection molded by optical plastic.

Still referring to fig. 2, the collective lens portion 100 is used for collecting and outputting light, the collective lens portion 100 is a rotational symmetric structure, the bottom of the collective lens portion 100 has a groove 1002, the cross-sectional profile of the groove 1002 is circular, the upper and lower ends of the collective lens portion 100 respectively have a collective lens exit surface 1001 and a collective lens entrance end 1000, and the outer diameter of the collective lens entrance end 1000 is smaller than the outer diameter of the collective lens exit surface 1001.

The light collecting lens part 100 is preferably a light collecting collimating lens, which can collect light and output the light vertically.

The structure and principle of the collective lens unit 100 are well known, and a collective collimator lens is one type of collective lens.

Still referring to fig. 2, the splitting lens 101 is used for receiving the light input by the collecting lens 100 and reflecting the light output, and the splitting lens 101 is an overall elliptic flat column structure, and a plane facing to the collecting lens 100 is parallel to a plane facing away from the collecting lens 100. The spectral lens portion 101 forms an angle of 45 ° with the condenser lens exit surface 1001, and has a lower end connected to one side edge of the condenser lens exit surface 1001 and an upper end corresponding to one side edge of the condenser lens exit surface 1001. The spectral lens portion 101 may be designed to have a flat structure having another shape such as a rectangular shape.

Further, the utility model discloses well spectral lens portion 101 sets up coating layer 102 towards light collecting lens portion 100 one side plane, and coating layer 102 can take place to reflect specific wavelength, and is also right the utility model discloses the wavelength that corresponds the unit passageway takes place to reflect, and other wavelengths do not take place to act on, and the light that comes is shone from coating layer 102 below LED light source collimation takes place to reflect on this plane promptly. The specific wavelengths that are reflected by the coating 102 may be selected as desired.

As shown in fig. 2, the utility model discloses divide into two regions according to the function, light collecting lens part 100 and spectral lens part 101, wherein light collecting lens part 100 collects and accomplishes the collimation with the light that LED sent, and the propagation direction of spectral lens part 101's effect for changing light makes the light horizontal output of vertical irradiation.

During the use, as shown in fig. 3, the utility model is used for multichannel light source system, it is a plurality of the utility model discloses set up side by side, incident beam splitting lens portion 101 after light source light collection collimation is collected to light collecting lens portion 100, then take place total reflection and horizontal output at beam splitting lens portion 101, between two adjacent LED light source collimation beam splitting lenses, the beam that back LED light source collimation beam splitting lens sent gets into the beam splitting lens portion 101 of preceding LED light source collimation beam splitting lens along the horizontal direction, can accomplish the combination of multichannel light like this, the equal input light of final multichannel light spreads the medium device and exports.

Use the utility model discloses an among the LED multichannel light source system, the light of back LED light source light collection beam split lens output can merge with the light of preceding LED light source light collection beam split lens output, and the medium device is propagated to unified entering light, realizes the merging of multichannel light, can effectual reduction transmission medium's use quantity like this to reduce cost and reduce system's volume.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An LED light source light collecting and splitting lens for a medical detector comprises a light collecting lens part (100), wherein the light collecting lens part (100) is used for collecting light and outputting the light, and is provided with a light collecting lens incident end (1000) and a light collecting lens emergent surface (1001), the LED light source light collecting and splitting lens is characterized in that the light collecting lens emergent surface (1001) of the light collecting lens part (100) is integrally connected with a splitting lens part (101), and the splitting lens part (101) is obliquely arranged relative to the light collecting lens emergent surface (1001) and is used for receiving the light input by the light collecting lens part (100) and reflecting and outputting the received light.

2. The LED light source collecting and splitting lens for the medical detector according to claim 1, wherein the splitting lens portion (101) has a flat structure, and a plane facing the collecting lens portion (100) is parallel to a plane facing away from the collecting lens portion (100).

3. The LED light source light collecting and splitting lens for the medical detector as claimed in claim 2, wherein the splitting lens portion (101) is an elliptical cylindrical structure.

4. The LED light source collecting and splitting lens for the medical detector according to claim 2, wherein the splitting lens portion (101) forms an angle of 45 ° with the exit surface (1001) of the collecting lens.

5. The LED light source collecting and splitting lens for the medical detector according to claim 1, wherein the lower end of the splitting lens part (101) is connected to the edge of the exit surface (1001) of the collecting lens.

6. The LED light source collecting and splitting lens for the medical detector according to claim 1, wherein the splitting lens portion (101) is provided with a coating layer (102) on a side plane facing the collecting lens portion (100).

7. The LED light source light collecting and splitting lens for the medical detector according to any one of claims 1 to 6, wherein the light collecting lens part (100) and the splitting lens part (101) are of an optical plastic integral injection molding structure.

8. The LED light source collecting and splitting lens for the medical detector according to any one of claims 1 to 6, wherein the collecting lens portion (100) is a collecting and collimating lens capable of collecting light and outputting the light vertically.

9. The LED light source collecting and splitting lens for the medical detector according to any one of claims 1-6, wherein the collecting lens portion (100) has a rotational axis symmetry structure, the outer diameter of the incident end (1000) of the collecting lens is smaller than the outer diameter of the emergent surface (1001) of the collecting lens, and the bottom of the collecting lens portion (100) has a groove (1002).