CN201130269Y - Eyepiece having picture-transferring function - Google Patents
Eyepiece having picture-transferring function Download PDFInfo
- Publication number
- CN201130269Y CN201130269Y CNU2007203104243U CN200720310424U CN201130269Y CN 201130269 Y CN201130269 Y CN 201130269Y CN U2007203104243 U CNU2007203104243 U CN U2007203104243U CN 200720310424 U CN200720310424 U CN 200720310424U CN 201130269 Y CN201130269 Y CN 201130269Y
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- CN
- China
- Prior art keywords
- eyepiece
- lens
- meniscus lens
- prism
- positive
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model relates to an eyepiece with rotating image function, wherein the optical lens comprises a first negative meniscus lens, a second positive lens, a third contact lens, a fourth meniscus lens and a prism for rotating the direction of the visual surface, which is characterized in that: the prism is arranged between the first negative meniscus lens and the second positive lens; the direct rotating image function of the eyepiece can be realized; the special rotating image mechanism is not needed to extend; the eyepiece can match with the objective lens directly and that is to say the observational image is positive; meanwhile, the former visual surface can be rotated in 360 degrees. The eyepiece has the advantages that: when using, the user can observe in each direction, such as left, right, upper and lower, and the working position is not limited.
Description
Technical field
The utility model belongs to optical technical field, is a kind of eyepiece with image rotation function.
Background technology
Eyepiece is the important component part of visual optical system.Eyepiece can be regarded a magnifier that is complementary with object lens in use as, is erect image by the eyepiece imaging, and the observed picture of operator then is an inverted image, therefore uses very inconvenient.At telescopic system, if the picture of need observing is an erect image, eyepiece and object lens between must set up image rotating device separately, the volume of total system is increased greatly.Secondly, in the prior art, used eyepiece mostly is straight tubular, does not possess the function of turning to, and the working position is very restricted, and uses very inconvenient.So far, the eyepiece optical system that also do not have high imaging quality, has the image rotation function.
The utility model content
The purpose of this utility model provides a kind of compact conformation, volume is little, in light weight, can realize the diopter regulatory function, and can guarantee the excellent optical performance and the stable eyepiece with the function of turning to of image quality of eyepiece.
Realize that the technical scheme that the purpose of this utility model is taked is: the optical lens group of this eyepiece is by first diverging meniscus lens, second positive lens, the 3rd balsaming lens, the 4th meniscus lens and be used to rotate the prism of looking the face direction and form, wherein, prism is arranged between first diverging meniscus lens and second positive lens.
The focal length of described first diverging meniscus lens is-251.97～-focal length of 340.89mm, second positive lens be the focal length of 48.05～65.01mm, the 3rd balsaming lens be the focal length of 85.94～116.28mm, the 4th meniscus lens be-106.88～-144.60mm.
The optical axis of described first diverging meniscus lens and the angle between the primary optical axis are 90 °.
What described prism adopted is the triangle roof prism.
According to the cranked eyepiece that such scheme is made, by the design of roof prism, can realize direct image rotation function, need not set up special image rotation mechanism, can be directly and the object lens coupling, can make observed picture is erect image.Simultaneously, face is looked in its front portion can do 360 ° of rotations, when the observer uses, can be from any direction observation up and down, and the working position is unrestricted.This eyepiece also has image quality height, simple in structure, compactness, advantage such as easy to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to Fig. 1, cranked eyepiece of the present utility model, the optical lens group of this eyepiece is by first diverging meniscus lens 1, second positive lens 3, the 3rd balsaming lens 4, the 4th meniscus lens 5 and be used to rotate the prism 2 of looking the face direction and form, wherein, the focal length of first diverging meniscus lens 1 be-251.97～-focal length of 340.89mm, second positive lens 3 be the focal length of 48.05～65.01mm, the 3rd balsaming lens 4 be the focal length of 85.94～116.28mm, the 4th meniscus lens 5 be-106.88～-144.60mm.Prism 2 is arranged between first diverging meniscus lens 1 and second positive lens 3, the optical axis of first diverging meniscus lens 1 and the angle between the primary optical axis are 90 °, and by cooperating 360 ° of rotations of realization, so that when work, can observe at an arbitrary position with being connected of eyepiece housing.Label 6 is the emergent pupil face of eyepiece, and label 7 is the object plane of eyepiece.
The principle of this eyepiece is: utilize in the optical lens group first diverging meniscus lens 1 to object plane 7 bendings, move after making the interarea of whole eyepiece group, add triangle roof prism 2 this moment between first diverging meniscus lens 1 and second positive lens 3, both can change optical path direction, can make inverted image again and use.Because first diverging meniscus lens 1 and second positive lens 3 are born bigger focal power in the eyepiece lens group, the various aberrations that they and triangle roof prism 2 bring are then compensated by the 3rd balsaming lens 4 and the 4th diverging meniscus lens 5.Because the 3rd balsaming lens 4 and the 4th diverging meniscus lens 5 are born smaller focal power, therefore in carrying out the process that diopter regulates, change the change that interval between second positive lens 3 and the 3rd balsaming lens 4 can not cause eyepiece optics performance and picture element.
Claims (4)
1, a kind of eyepiece with image rotation function, it is characterized in that: the optical lens group of this eyepiece is by first diverging meniscus lens, second positive lens, the 3rd balsaming lens, the 4th meniscus lens and be used to rotate the prism of looking the face direction and form, wherein, prism is arranged between first diverging meniscus lens and second positive lens.
2, the eyepiece with image rotation function according to claim 1 is characterized in that: the focal length of described first diverging meniscus lens is-251.97～-focal length of 340.89mm, second positive lens be the focal length of 48.05～65.01mm, the 3rd balsaming lens be the focal length of 85.94～116.28mm, the 4th meniscus lens be-106.88～-144.60mm.
3, the eyepiece with image rotation function according to claim 1 is characterized in that: the optical axis of described first diverging meniscus lens and the angle between the primary optical axis are 90 °.
4, the eyepiece with image rotation function according to claim 1 is characterized in that: what described prism adopted is the triangle roof prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203104243U CN201130269Y (en) | 2007-12-11 | 2007-12-11 | Eyepiece having picture-transferring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203104243U CN201130269Y (en) | 2007-12-11 | 2007-12-11 | Eyepiece having picture-transferring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130269Y true CN201130269Y (en) | 2008-10-08 |
Family
ID=40018132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203104243U Expired - Lifetime CN201130269Y (en) | 2007-12-11 | 2007-12-11 | Eyepiece having picture-transferring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130269Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017181360A1 (en) * | 2016-04-20 | 2017-10-26 | 深圳纳德光学有限公司 | Eyepiece optical system for near-eye display, and head-mounted display device |
| CN108020914A (en) * | 2016-11-03 | 2018-05-11 | 苏州速迈医疗设备有限公司 | A kind of surgical operation microscope |
-
2007
- 2007-12-11 CN CNU2007203104243U patent/CN201130269Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017181360A1 (en) * | 2016-04-20 | 2017-10-26 | 深圳纳德光学有限公司 | Eyepiece optical system for near-eye display, and head-mounted display device |
| CN108474946A (en) * | 2016-04-20 | 2018-08-31 | 深圳纳德光学有限公司 | The eyepiece optical system and head-wearing display device shown for nearly eye |
| CN108474946B (en) * | 2016-04-20 | 2020-11-13 | 深圳纳德光学有限公司 | Eyepiece optical system for near-to-eye display and head-mounted display device |
| CN108020914A (en) * | 2016-11-03 | 2018-05-11 | 苏州速迈医疗设备有限公司 | A kind of surgical operation microscope |
| CN108020914B (en) * | 2016-11-03 | 2021-06-15 | 苏州速迈医学科技股份有限公司 | Operating microscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081008 |