Filter mounting methods and apparatus and related camera apparatus
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04N-005/225
G03B-017/00
출원번호
US-0136860
(2016-04-22)
등록번호
US-9930233
(2018-03-27)
발명자
/ 주소
Singh, Harpuneet
Schmieder, James
출원인 / 주소
Light Labs Inc.
대리인 / 주소
Straub & Straub
인용정보
피인용 횟수 :
0인용 특허 :
41
초록▼
Methods and apparatus, for mounting and using a filter over an image sensor are described as well as camera modules and apparatus incorporating the filter mount. Also described is a sensor and filter assembly which can be formed by combining the sensor, filter, filter mount, and a mounting board whi
Methods and apparatus, for mounting and using a filter over an image sensor are described as well as camera modules and apparatus incorporating the filter mount. Also described is a sensor and filter assembly which can be formed by combining the sensor, filter, filter mount, and a mounting board which can be shipped and integrated into a camera module and/or camera. A filter is placed in a filter well of a filter mount. By using a well to support the filter over a sensor, the top of the filter can be level or below the top of sidewalls of the filter mount. Use of a well to mount the filter reduces the risk of stray or unintentionally reflected light reaching the sensor and degrading captured images while protecting the filter from downward pressure or sideways contact.
대표청구항▼
1. An apparatus for use in a camera device, the apparatus comprising: a filter mount (1106) including sidewalls (1309, 1309′, 1306, 1306′) forming a filter well (1110) for mounting a filter (1114), said sidewalls including outer support walls (1309, 1309′) extending from a surface (1103) of a mounti
1. An apparatus for use in a camera device, the apparatus comprising: a filter mount (1106) including sidewalls (1309, 1309′, 1306, 1306′) forming a filter well (1110) for mounting a filter (1114), said sidewalls including outer support walls (1309, 1309′) extending from a surface (1103) of a mounting board (1102) to a top (1106′) of said filter well (1110), inner sidewalls (1306, 1306′) of said filter mount (1106) extending inward from the outer support walls (1309, 1309′) to form a support ledge (1111) for supporting the filter (1114) in the filter well (1110); andthe filter (1114) positioned in said filter well (1110), said filter (1114), filter mount (1106) and mounting board (1102) forming a cavity (1357) in which a sensor (1307) is mounted to said mounting board (1102), and wherein at least one corner (1126) of said filter mount (1106) is open for ventilation of the cavity (1357). 2. The apparatus of claim 1, further comprising the mounting board (1102) and wherein said filter mount (1106) is positioned on a surface (1103) of said mounting board (1102). 3. The apparatus of claim 2, wherein the inner sidewalls (1306, 1306′) are tapered. 4. The apparatus of claim 2, wherein said filter mount (1106) is a dark color. 5. The apparatus of claim 2, wherein said filter mount (1106) has a matt finish. 6. The apparatus of claim 5, wherein said filter mount (1106) is made of a non-reflective material. 7. The apparatus of claim 2, wherein a top surface of said filter (1114) is recessed below a top surface of the outer support walls (1309, 1309′). 8. The apparatus of claim 2, wherein at least one (1128) of the corners of the filter mount (1106) are stepped. 9. The apparatus of claim 1, wherein said filter well (1110) includes rounded notched corners (1112, 1112′). 10. The apparatus of claim 9, wherein the filter (1114) includes rounded corners. 11. The apparatus of claim 9, wherein the filter (1114) is secured to the filter mount (1106) in the filter well (1110) by a drop of glue placed in the corners of the filter well (1110). 12. The apparatus of claim 11, wherein the filter (1114) is not glued at locations other than the corner locations. 13. The apparatus of claim 12, wherein the tapered inner sidewalls extend further inward at the top than at the bottom of said sidewalls (1306, 1306′), and wherein the top of said sidewalls corresponds to the side on which the filter (1114) is mounted and wherein the bottom of said sidewalls corresponds to the side which extends over the sensor (1307). 14. The apparatus of claim 13, wherein said ledge (1111) extends over wires connecting said sensor to the mounting board (1102) or a flexible tape (1107). 15. The apparatus of claim 1 wherein at least one corner (1128) of said filter mount (1106) is sealed. 16. The apparatus of claim 15, wherein multiple corners of the cavity (1357) are sealed. 17. A camera module for use in a camera device, the camera module comprising: a filter (1114);a filter mount (1106) including sidewalls (1309, 1309′, 1306, 1306′) forming a filter well (1110) for mounting the filter (1114), said sidewalls including outer support walls (1309, 1309′) extending from a surface (1103) of a mounting board (1102) to a top (1106′) of said filter well (1110), inner sidewalls (1306, 1306′) of said filter mount (1106) extending inward from the outer support walls (1309, 1309′) to form a support ledge (1111) for supporting the filter (1114) in the filter well (1110); anda sensor (1307), mounted on said mounting board (1102) beneath said filter (1114),and wherein the filter (1114) is positioned in said filter well (1110), said filter (1114), filter mount (1106) and mounting board (1102) forming a cavity (1357) in which said sensor (1307) is mounted to said mounting board (1102), and wherein at least one corner (1126) of said filter mount (1106) is open for ventilation of the cavity (1357). 18. The camera module of claim 17, further comprising: a flexible circuit tape (1107) connected to said sensor (1307) by wires (901) extending through said mounting board (1102) to said sensor (1307).
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