Optical imaging device

Abstract

An optical imaging device includes a lens, multiple lenses, a photosensitive element, a temperature adjustment assembly, and a computing element. The lens has a housing, which sequentially includes a first end, a receiving portion, and a second end. Multiple lenses are disposed in the receiving portion and have lens temperatures and focal lengths. A photosensitive element is located between the second end and the lenses and has a photosensitive surface, which is used to obtain the brightness of multiple pixels on the photosensitive surface. The temperature adjustment assembly is adjacent to the lenses and is used to adjust the lens temperatures to a target temperature according to a control signal, thereby adjusting the focal length of the lenses. The computing element is communicatively connected to the temperature adjustment assembly and is used to generate control signals according to adjustment parameters. The adjustment parameters include a target distance and lens temperature, or the brightness of adjacent pixels and lens temperature.

Claims

1. An optical imaging device, comprising: a lens having a housing having a first end, a receiving portion, and a second end sequentially thereon; a plurality of lenses disposed in the receiving portion and having a lens temperature and a lens focal length; a photosensitive element located between the second end and the lenses and having a photosensitive surface, the photosensitive element being used to obtain a plurality of pixel brightness on the photosensitive surface; a temperature adjustment component adjacent to the lenses and used to adjust the lens temperature to a target temperature according to a control signal, thereby adjusting the lens focal length; and a computing element communicatively connected to the photosensitive element and the temperature adjustment component, and used to generate the control signal according to an adjustment parameter; wherein... The adjustment parameters include a target distance and the lens temperature, or the brightness of adjacent pixels and the lens temperature.

2. The optical imaging apparatus as claimed in claim 1 further includes a ranging element and a temperature sensing element; the ranging element is connected to the housing for measuring the target distance; the temperature sensing element is connected to the housing for measuring the lens temperature of the lenses.

3. The optical imaging apparatus as described in claim 2, wherein, The control signal includes a heating signal and a cooling signal; the temperature adjustment assembly includes at least one heating element and at least one cooling element; the at least one heating element is used to increase the lens temperature according to the heating signal, and the at least one cooling element is used to decrease the lens temperature according to the cooling signal.

4. The optical imaging apparatus as described in claim 3, wherein, Multiple heating elements and multiple cooling elements are respectively disposed on the housing and alternately surround the sides of the lenses.

5. The optical imaging apparatus as described in claim 3, wherein, The at least one heating element includes a first heating group and a second heating group, the first heating group and the second heating group being disposed on the housing and surrounding the lenses; the at least one cooling element is disposed on the housing and surrounding the lenses; wherein the first heating group is adjacent to the first end, the second heating group is adjacent to the second end, and the at least one cooling element is located between the first heating group and the second heating group.

6. The optical imaging apparatus as described in claim 3, wherein, Multiple heating elements and multiple cooling elements are respectively disposed in the receiving portion and alternately surround the sides of the lenses.

7. The optical imaging apparatus as described in any one of claims 1 to 6 further includes a plurality of temperature sensing elements surrounding the lenses to measure the lens temperature at different circumferential angles.

8. The optical imaging apparatus as described in claim 7, wherein, The computing element controls the temperature adjustment component based on the lens temperatures at different circumferential angles, so as to adjust the lens temperatures at different circumferential angles to be consistent.

9. The optical imaging apparatus as described in any one of claims 3 to 6, wherein, The computing element is used to generate the heating signal or the cooling signal based on a contrast in brightness between adjacent pixels.

10. The optical imaging apparatus as claimed in claim 9, wherein, In response to the contrast reaching a peak value, the processing element selectively sends the heating signal and the cooling signal to maintain the lens temperature.

11. The optical imaging apparatus as described in claim 9, wherein, The computing element is used to generate the heating signal or the cooling signal based on the contrast of the brightness of the adjacent pixels and a temperature adjustment meter.

Images