# US 12,216,246 B2 · Miniature telephoto lens module and a camera utilizing such a lens module

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- Number: US 12,216,246 B2
- Document ID: US12216246B2
- Status: Granted
- Kind: B2
- Application number: 18/641,478
- Filed: 2024-04-22
- Published: 2024-08-29
- Granted: 2025-02-04
- Earliest claimed: 2019-02-14
- Assignees: Corephotonics Ltd.
- Applicants: Corephotonics Ltd.
- Inventors: Gal Shabtay; Ephraim Goldenberg
- Web page: https://patentgrep.com/patent/US12216246B2

## CPC

- G02B 13/001: {Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras (G02B23/243 takes precedence)}
- G02B 7/021: {for more than one lens}
- G02B 9/60: having five components only
- G02B 13/0045: {having five or more lenses}
- G02B 13/02: Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
- G02B 13/06: Panoramic objectives; So-called "sky lenses" {including panoramic objectives having reflecting surfaces}
- G03B 17/00: Details of cameras or camera bodies; Accessories therefor (lens hoods or caps G03B11/04)
- H04N 23/45: for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
- H04N 23/50: Constructional details
- H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
- G02B 1/041: {Lenses}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

The presently disclosed subject matter includes a mobile electronic comprising an integrated camera, comprising a Wide camera unit comprising a Wide lens unit, and a Telephoto camera unit comprising a telephoto lens unit, the telephoto lens unit and the wide lens unit having respectively TTL/EFL ratios smaller and larger than 1 and defining separate telephoto and wide optical paths.

## Claims

### Claim 1

A dual-aperture camera, comprising:
an integrated camera that comprises a Wide camera unit having a Wide lens unit with a field of view FOVW and having a total track length TTLW and an effective focal length EFLW, and a Telephoto camera unit comprising a Telephoto lens unit with a Telephoto field of view FOVT, a total track length TTLT and an effective focal length EFLT,
wherein the TTLT includes a glass window,
wherein a ratio TTLW/EFLW is greater than 1,
wherein a ratio TTLT/EFLT is smaller than 1,
wherein the Telephoto lens unit has an optical axis, an optical diameter smaller than 5 mm and a F# smaller than 3.2 and includes, in order from an object plane to an image plane along the optical axis, a first lens element having positive optical power and two last lens elements, wherein one of the two last lens elements has an Abbe number greater than 50, and wherein the other of the two last lens elements has an Abbe number smaller than 30.

### Claim 2 (depends on 1)

The dual-aperture camera of claim 1, wherein EFLT is in the range EFLT=5-12 mm.

### Claim 3 (depends on 1)

The dual-aperture camera of claim 1, wherein F# is smaller than 2.9.

### Claim 4 (depends on 1)

The dual-aperture camera of claim 1, wherein TTLT/EFLT is smaller than 0.9.

### Claim 5 (depends on 1)

The dual-aperture camera of claim 1, wherein the Telephoto lens unit includes a pair of lens elements formed by a second lens element and a third lens element, and wherein the pair of lens elements has a combined negative optical power.

### Claim 6 (depends on 1)

The dual-aperture camera of claim 1, wherein the first lens element of the Telephoto lens unit has a focal length f1 smaller than TTLT/2.

### Claim 7 (depends on 1)

The dual-aperture camera of claim 1, wherein the two last lens elements are spaced apart from one another by an effective air gap smaller than TTLT/50.

### Claim 8 (depends on 1)

The dual-aperture camera of claim 1, wherein the first, second and third lens elements have respective focal lengths f1, f2 and f3, and wherein the respective focal lengths satisfy the condition 1.2|f3|>|f2|>1.5f1.

### Claim 9 (depends on 1)

The dual-aperture camera of claim 1, wherein the Telephoto camera unit includes an image sensor with an image sensor size ¼″ to ⅓″.

### Claim 10 (depends on 1)

The dual-aperture camera of claim 1, wherein the Wide and Telephoto camera units are spaced from one another a distance of about 1 mm.

### Claim 11 (depends on 1)

The dual-aperture camera of claim 1, wherein TTLT is smaller than 5.5 mm.

### Claim 12 (depends on 1)

The dual-aperture of claim 1, included in a mobile electronic device.

### Claim 13 (depends on 12)

The dual-aperture camera of claim 12, wherein the mobile device is a smartphone.

### Claim 14 (depends on 2)

The dual-aperture of claim 2, included in a mobile electronic device.

### Claim 15 (depends on 14)

The dual-aperture camera of claim 14, wherein the mobile device is a smartphone.

### Claim 16 (depends on 3)

The dual-aperture of claim 3, included in a mobile electronic device.

### Claim 17 (depends on 16)

The dual-aperture camera of claim 16, wherein the mobile device is a smartphone.

### Claim 18 (depends on 4)

The dual-aperture of claim 4, included in a mobile electronic device.

### Claim 19 (depends on 18)

The dual-aperture camera of claim 18, wherein the mobile device is a smartphone.