Optical apparatus

• US 10,386,614 B2
• Filed: 10/14/2015
• Issued: 08/20/2019
• 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): Nguyen, Thong Q
• Application Number:
  US14/882,910
• Publication Number:
  US 20160124195A1
• Time in Patent Office: 1,406 Days
• CPC Class Codes: G02B 13/0055 employing a special optical element
• CPC Class Codes: G02B 13/0085 employing wafer level optics
• CPC Class Codes: G02B 13/009 having zoom function
• 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 3/0043 Inhomogeneous or irregular arrays, e.g. varying shape, size, height
• CPC Class Codes: G02B 3/0062 Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
• CPC Class Codes: G02B 3/0068 arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements G02B5/1885, G02B17/002, G02B30/27 take precedence
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation

Abstract

An optical apparatus includes plural optical lens groups with a specified field of view and an optical sensor accommodated and fixed within a casing. After a light beam passes through any of the plural optical lens groups, its travelling direction is changed, and it is sensed by the optical sensor and converted into an image signal by the optical sensor. The optical apparatus has a single optical lens module of minimized volume and is able to implement different optical functions simultaneously. Consequently, the fabricating cost of the optical apparatus is reduced, the assembling process is simplified, and the number of components to be assembled is reduced.

Claims

1. An optical image capturing apparatus, comprising:

plural peripheral optical lens groups with plural peripheral optical axes, respectively, wherein at least one of the plural peripheral optical lens groups includes a first reflective optical element, a second reflective optical element and a first peripheral lens;

a center optical lens group with a center optical axis positioned to be surrounded by the plural peripheral optical lens groups, wherein the center optical lens group includes plural center lenses in a stack arrangement, and the first reflective optical element is located at a sidewall of the plural center lenses and the first peripheral lens is integrally formed with one of the center lenses, and the center optical axis and at least one of the plural peripheral optical axes are not overlapped with each other;

an optical sensor arranged to sense an ambient light beam passing through the plural peripheral optical lens groups and the center optical lens group; and

a casing accommodating the plural peripheral optical lens groups, the center optical lens group and the optical sensor, wherein the second reflective optical element is located at an interior sidewall of the casing and faced towards the first reflective optical element,

wherein the ambient light beam having an inclined angle larger than 20 degrees with respect to the center optical axis is reflected by the first reflective optical element and the second reflective optical element and then passes through the first peripheral lens to be sensed by the optical sensor.

2. The optical image capturing apparatus according to claim 1, further comprising a filter arranged between the plural peripheral optical lens groups, the center optical lens group and the optical sensor, wherein a visible light beam, an infrared light beam, a near infrared light beam and/or a far infrared light beam is blocked by the filter.

3. The optical image capturing apparatus according to claim 1, further comprising a light shielding plate located at front sides of the plural peripheral optical lens groups and the center optical lens group and accommodated within the casing, wherein the light shielding plate includes plural perforations corresponding to the plural peripheral optical lens groups and the center optical lens group, respectively.

4. The optical image capturing apparatus according to claim 1, wherein, exclusive of the one having the first and second reflective optical elements and the first peripheral lens, each of the plural peripheral optical lens groups comprises plural other peripheral lenses arranged in a stack arrangement and integrally formed with the plural center lenses.

5. The optical image capturing apparatus according to claim 1, wherein the optical image capturing apparatus satisfies a mathematic formula:

6. The optical image capturing apparatus according to claim 1, wherein the optical image capturing apparatus satisfies mathematic formulae:

7. The optical image capturing apparatus according to claim 1, wherein the optical image capturing apparatus satisfies mathematic formulae:

8. The optical image capturing apparatus according to claim 1, wherein the optical image capturing apparatus satisfies mathematic formulae:

9. The optical apparatus according to claim 1, further comprising at least one filter, wherein the at least one filter is arranged between the plural optical lens groups and the optical sensor, wherein after the light beam passes through any of the plural optical lens groups, a portion of the light beam is filtered and sieved by the filter.