Compact double folded tele cameras including four lenses of +−+−, +−++; OR +−−+; or six lenses of +−+−+− or +−+−−− refractive powers

Patent metadata

Field	Value
Publication number	US-11985407-B2
Application number	US-202318324982-A
Country	US
Kind code	B2
Filing date	May 28, 2023
Priority date	Nov 2, 2021
Publication date	May 14, 2024
Grant date	May 14, 2024

Abstract

In some embodiments there are disclosed folded camera modules comprising a lens with 6 lens elements divided into two lens groups G1 and G2 and an effective focal length EFL, an object side-optical path folding element O-OPFE, an image side-optical path folding element I-OPFE and an image sensor, wherein G1 is located at an object side of the O-OPFE and G2 is located at an image side of the O-OPFE, wherein 8 mm<EFL<50 mm, wherein a camera module is divided into a first region having a minimum camera module region height MH M and including G1 and the O-OPFE, and into a second region having a minimum shoulder region height MH S <MH M and including the I-OPFE and the image sensor, wherein an aperture height of the lens is H L and wherein H L /MH S >0.9. In some embodiments, there are disclosed folded camera modules comprising a lens with N=4 lens elements having a lens thickness T Lens and a total track length TTL, an I-OPFE and an O-OPFE, wherein the EFL is in the range of 8 mm<EFL<50 mm, and wherein T Lens /TTL<0.4.

First claim

What is claimed is:

1. A camera module, comprising:
a lens with N=6 lens elements Li divided into a first lens group (G1) having at least two lens elements, and a second lens group (G2), and having an effective focal length EFL, an aperture diameter DA, a f-number f/#, a total track length TTL and a back focal length BFL, wherein each lens element has a respective focal length fi and wherein a first lens element L 1 faces an object side and a last lens element LN faces an image side;
an object side optical path folding element O-OPFE for folding a first optical path (OP1) to a second optical path (OP2);
an image side optical path folding element I-OPFE for folding OP2 to a third optical path (OP3), wherein OP1 and OP2 are perpendicular to each other and wherein OP1 and OP3 are parallel with each other; and
an image sensor having a sensor diagonal (SD),
wherein the camera module is a folded digital camera module, wherein G1 is located at an object side of the O-OPFE and G2 is located at an image side of the O-OPFE, wherein the EFL is in the range of 8 mm<EFL<50 mm, wherein the camera module is divided into a first region having a minimum camera module region height MHM and including G1 and the O-OPFE, and into a second region having a minimum shoulder region height MHS<MHM and including the I-OPFE and the image sensor, wherein all heights are measured along OP1, wherein an aperture height of the lens is HL and wherein HL/MHS>0.9, and wherein a cut plane of the cut lens group G2 is parallel to OP2 and parallel to an axis perpendicular to both OP1 and OP2.

2. The camera module of claim 1 , wherein the camera module has a minimum camera module length MLM and wherein EFL>1.1·MLM.

3. The camera module of claim 1 , wherein 5 mm<SD<15 mm.

4. The camera module of claim 1 , wherein the first region of the camera module has a module region height HM, wherein at least one lens element in G2 comprises an optical width WL which is 20% larger than its optical height HL, by and wherein HM is reduced by >10% by the cutting compared to an axial symmetric lens.

5. A mobile device including the camera module of claim 1 , wherein the mobile device has a device thickness T and a camera bump region, wherein the bump region has an elevated height T+B, wherein a first region of the camera module is incorporated into the camera bump region and wherein a second region of the camera module is not incorporated into the camera bump region.

Assignees

• Corephotonics Ltd

Inventors

• Goldenberg Ephraim
• Yedid Itay
• Shabtay Gal
• Boral Itamar
• Goulinski Nadav
• Shemesh Ziv

Classifications

• G03B2205/0023

  by tilting or inclining one or more optical elements with respect to the optical axis · CPC title

• H04N23/687

  by shifting the lens or sensor position · CPC title

• H04N23/686

  with a variable apex prism · CPC title

• H04N23/55 Primary

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title