Combined lens module and image capturing-and-sensing assembly

• US 9,857,569 B2
• Filed: 01/13/2015
• Issued: 01/02/2018
• Est. Priority Date: 10/31/2014
• Status: Active Grant

• Current Assignee: Everready Precision Ind. Corp.
• Original Assignee: Everready Precision Ind. Corp.
• Inventors: Chern, Jyh-Long, Yen, Chih-Ming
• Primary Examiner(s): Perungavoor, Sath V
• Assistant Examiner(s): Dang, Philip
• Application Number:
  US14/595,697
• Publication Number:
  US 20160124180A1
• Time in Patent Office: 1,085 Days
• CPC Class Codes: G02B 13/0035 having three lenses
• CPC Class Codes: G02B 13/008 designed for infrared light
• CPC Class Codes: G02B 13/16 for use in conjunction with image converters or intensifiers , or for use with projectors, e.g. objectives for projection TV
• CPC Class Codes: G02B 9/12 having three components only
• CPC Class Codes: H04N 23/11 for generating image signals from visible and infrared light wavelengths
• CPC Class Codes: H04N 23/55 Optical parts specially adapted for electronic image sensors; Mounting thereof

Abstract

A combined lens module including plural lens modules deposited within a housing is provided. These lens modules include plural lenses and multiple apertures. Each lens has a main lens element for visible light and an associate lens element for invisible light. An image capturing-and-sensing assembly may be performed by equipping with such a combined lens module and a sensor for visible light and invisible light, which could have high-resolution and apply to a thin portable device or any environment in use of infrared structured lighting or light scanner for the applications of human-machine interactive.

Claims

1. A combined lens module comprising:

a housing; and

a plurality of lenses deposited within the housing and stacked on one another, each of the lenses comprising a main lens element for passing visible light at the center zone of the corresponding lens and a plurality of associate lens elements for passing invisible light at the surrounding zone of the corresponding lens, so as to form a main lens module comprising the stacked plural main lens elements and surrounded by a plurality of associate lens modules comprising the stacked plural associate lens elements,

wherein the main lens module has a main aperture and each of the associate lens modules has an associate aperture, and light data from the outside of the housing enters into the housing and then leaves the housing after passing through the main and associate lens modules.

2. The combined lens module according to claim 1, further comprising an aperture stop, wherein the stacked main lens elements comprise a first main lens element, a second main lens element and a third main lens element, and the aperture stop is deposited between the first main lens element and the second lens element.

3. The combined lens module according to claim 2, wherein the visible light of the light data from the outside of the housing passes through the first main lens element, the aperture stop, the second main lens element and the third main lens element in sequence, and then reaches a sensor outside of the housing, and the optical power of the third main lens element is positive.

4. The combined lens module according to claim 3, wherein the optical powers of the first main lens element and the second main lens element are positive numbers.

5. The combined lens module according to claim 1 further comprising an aperture stop, wherein the stacked main lens elements comprise a first main lens element, a second main lens element and a third main lens element, and the aperture stop is placed between the first main lens element and the housing, and wherein the visible light of the light data from the outside of the housing passes through the aperture stop, the first main lens element, the second main lens element and the third main lens element in sequence, and then reaches a sensor outside of the housing, and the optical power of the third main lens element is positive.

6. The combined lens module according to claim 5, wherein the optical power of the first main lens element is positive, and the optical power of the second main lens element is negative.

7. The combined lens module according to claim 1, wherein the image circle of each of the associate apertures and the image circle of the main aperture are partially or totally overlapped.

8. The combined lens module according to claim 1, wherein the invisible light comprises at least one of infrared light and thermal light.

9. An image capturing-and-sensing assembly comprising:

a housing;

a plurality of lenses deposited within the housing and stacked with one another, each of the lenses comprising a main lens element for passing visible light at the center zone of the corresponding lens and a plurality of associate lens elements for passing invisible light at the surrounding zone of the corresponding lens, so as to form a main lens module comprising the stacked plural main lens elements and surrounded by a plurality of associate lens modules comprising the stacked plural associate lens elements, wherein the main lens module has a main aperture and each of the associate lens modules has an associate aperture; and

a sensor sensing the visible light passing through the main lens module and the invisible light passing through the associate lens modules.

10. The image capturing-and-sensing assembly according to claim 9, wherein the sensor comprises a non-Bayer sensor in which at least one sensing pixel for the invisible light is included in one unit, where the corresponding sensor unit may be in a regular matrix or in an irregular shape.

11. The image capturing-and-sensing assembly according to claim 10, further comprising an aperture stop, and wherein the main lens elements comprise a first main lens element, a second main lens element, and a third main lens element, and wherein the aperture stop is placed between the first main lens element and the second main lens element, or the aperture stop is between the first main lens element or the housing.

12. The image capturing-and-sensing assembly according to claim 11, wherein the optical powers of the first main lens element and the third main lens element are positive numbers.

13. The image capturing-and-sensing assembly according to claim 9, wherein the invisible light comprises at least one of infrared light and thermal light.

14. The image capturing-and-sensing assembly according to claim 9, wherein an image circle of each of the associate apertures and an image circle of the main aperture are partially or totally overlapped.

15. A combined lens module comprising:

a housing; and

a plurality of lenses deposited within the housing and stacked with one another, each of the lenses comprising a main lens element for passing visible light and a plurality of associate lens elements for passing invisible light, so as to form a main lens module comprising the stacked plural main lens elements and a plurality of associate lens modules comprising the stacked plural associate lens elements, wherein

the main lens module has a main aperture and each of the associate lens modules has an associate aperture;

the image circle of each of the associate apertures is smaller than the image circle of the main aperture; and

light data from the outside of the housing enters into the housing and then leaves the housing after passing through the main and associate lens modules.

16. The combined lens module according to claim 15, wherein the image circle of each of the associate apertures and the image circle of the main aperture are partially or totally overlapped, and the image circle of the main aperture is surrounded by the image circles of the associate apertures.

17. A combined lens module comprising:

a housing; and

a plurality of lenses deposited within the housing and stacked with one another, each of the lenses comprising a main lens element for passing visible light and a plurality of associate lens elements for passing invisible light, so as to form a main lens module comprising the stacked plural main lens elements and a plurality of associate lens modules comprising the stacked plural associate lens elements, wherein

the main lens module has a main aperture and each of the associate lens modules has an associate aperture;

the image circle of each of the associate apertures and the image circle of the main aperture are partially or totally overlapped; and

light data from the outside of the housing enters into the housing and then leaves the housing after passing through the main and associate lens modules.

18. The combined lens module according to claim 17, further comprising an aperture stop, and wherein the main lens elements comprise a first main lens element, a second main lens element, and a third main lens element, and wherein the aperture stop is placed between the first main lens element and the second main lens element, or the aperture stop is between the first main lens element or the housing.