CN209542057U - A kind of digital projection formula vertometer - Google Patents
A kind of digital projection formula vertometer Download PDFInfo
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- CN209542057U CN209542057U CN201821491362.5U CN201821491362U CN209542057U CN 209542057 U CN209542057 U CN 209542057U CN 201821491362 U CN201821491362 U CN 201821491362U CN 209542057 U CN209542057 U CN 209542057U
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- projection
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Abstract
The utility model discloses a kind of digital projection formula vertometers, light source rear is equipped with condenser, condenser rear is equipped with filter, filter rear is equipped with illumination reflector, gear drive is equipped with above illumination reflector, image-forming objective lens are equipped with above gear drive, eyeglass support is equipped with above image-forming objective lens, eyeglass support is connect with tested eyeglass, projection objective is equipped with above measured lens piece, projection mirror is equipped with above projection objective, projection screen is equipped with above projection mirror, the utility model is made up of the optical path of cola illumination two groups of condensers, city's field diaphragm is added to eliminate the interference of stray light, label dividing plate linearly can be moved up and down and be rotated by adjusting handle, the utility model structure is simple, and the refraction for passing through different angle, it ensure that the intensity of light.
Description
Technical field
The utility model belongs to the technical field of the optical measurement of hypometropia, and in particular to a kind of digital projection formula focal power
Meter.
Background technique
Vertometer be divided into again according to working principle based on focusing image-forming principle vertometer with based on auto-focusing principle
Two class of vertometer；The different of mode are divided into visual type and projection two to vertometer based on focusing image-forming principle again according to the observation
Kind；Visual type vertometer is observed using reading telescopic system；And projection vertometer using projection objective and projection screen into
Row observation；Currently on the market vertometer mainly have automatic digital display class, manually (digital display, direct-reading) class two class.
Utility model content
The purpose of this utility model is to provide a kind of digital projection formula vertometers, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of digital projection formula vertometer, including light
Source, condenser, filter, illumination reflector, gear drive, image-forming objective lens, eyeglass support, tested eyeglass, projection objective,
Projection mirror, projection screen, the light source rear are equipped with condenser, and the condenser rear is equipped with filter, the filter
Rear is equipped with illumination reflector, and gear drive, the gear drive and label are equipped with above the illumination reflector
Dividing plate connection, the gear drive are connect with scale transmission mechanism, and the scale transmission mechanism is connect with sensor, institute
It states sensor to connect with electronic control system, image-forming objective lens, the image-forming objective lens top is equipped with above the gear drive
Equipped with eyeglass support, the eyeglass support is connect with tested eyeglass, and projection objective, the projection are equipped with above the measured lens piece
It is equipped with projection mirror above object lens, projection screen, the projection screen are equipped with above the projection mirror as frosted glass, and above
It is carved with dial.
Further, the projection objective, projection mirror are respectively provided with 2, and the projection mirror is located at projection objective
Outside.
The utility model has the advantage that
The optical path of cola illumination is made up of two groups of condensers, and city's field diaphragm is added to eliminate the interference of stray light, label
Dividing plate linearly can be moved up and down and be rotated by adjusting handle, and the utility model structure is simple, and passes through different angle
Refraction, ensure that the intensity of light.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of digital projection formula vertometer of the utility model；
In figure: light source 1, condenser 2, filter 3, illumination reflector 4, gear drive 5, image-forming objective lens 6, eyeglass branch
Seat 7, tested eyeglass 8, projection objective 9, projection mirror 10, projection screen 11.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1:
The utility model provides a kind of digital projection formula vertometer as shown in Figure 1, including light source 1, condenser 2, filter
Look mirror 3, illumination reflector 4, gear drive 5, image-forming objective lens 6, eyeglass support 7, tested eyeglass 8, projection objective 9, projection
Reflecting mirror 10, projection screen 11,1 radiation source of light source inject condenser 2, and 2 rear of condenser is equipped with filter 3, institute
3 rear illumination reflector 4 of filter is stated, is equipped with gear drive 5, the gear drive machine above the illumination reflector 4
Image-forming objective lens 6 are equipped with above structure 5, the refraction of light source 1 first passes through illumination reflector 4, then light source 1 is refracted to image-forming objective lens 6
On, eyeglass support 7 is equipped with above the image-forming objective lens 6, the eyeglass support 7 is connect with tested eyeglass 8, and the light source 1 passes through
It is refracted to after 6 on image-forming objective lens on tested eyeglass 8, projection objective 9 is equipped with above the tested eyeglass 8, on the projection objective 9
Side is equipped with projection mirror 10, is equipped with projection screen 11, the projection objective 9, projection mirror above the projection mirror 10
10 are respectively provided with 2, and the projection mirror 10 is located at the outside of projection objective 9, and the projection screen 11 is frosted glass, and carves above
There is dial.
Further, the gear drive 5 is connect with label dividing plate, and the gear drive 5 is driven with scale
Mechanism connection, the scale transmission mechanism are connect with sensor, and the sensor is connect with electronic control system.
The utility model has the advantage that
The optical path of cola illumination is made up of two groups of condensers, and city's field diaphragm is added to eliminate the interference of stray light, label
Dividing plate linearly can be moved up and down and be rotated by adjusting handle, and the utility model structure is simple, and passes through different angle
Refraction, ensure that the intensity of light.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (2)
1. a kind of digital projection formula vertometer, which is characterized in that including light source, condenser, filter, illumination reflector, gear
Transmission mechanism, image-forming objective lens, eyeglass support, tested eyeglass, projection objective, projection mirror, projection screen, the light source rear is set
There is condenser, the condenser rear is equipped with filter, and the filter rear is equipped with illumination reflector, the illumination reflector
Top is equipped with gear drive, and the gear drive is connect with label dividing plate, the gear drive and scale
Transmission mechanism connection, the scale transmission mechanism are connect with sensor, and the sensor is connect with electronic control system, the tooth
It is equipped with image-forming objective lens above wheel drive mechanism, is equipped with eyeglass support, the eyeglass support and measured lens above the image-forming objective lens
Piece connection, the measured lens piece top are equipped with projection objective, projection mirror are equipped with above the projection objective, the projection is instead
It penetrates above mirror and is equipped with projection screen, the projection screen is frosted glass, and is carved with dial above.
2. a kind of digital projection formula vertometer according to claim 1, which is characterized in that the projection objective, projection reflection
Mirror is respectively provided with 2, and the projection mirror is located at the outside of projection objective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821491362.5U CN209542057U (en) | 2018-09-12 | 2018-09-12 | A kind of digital projection formula vertometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821491362.5U CN209542057U (en) | 2018-09-12 | 2018-09-12 | A kind of digital projection formula vertometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209542057U true CN209542057U (en) | 2019-10-25 |
Family
ID=68245150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821491362.5U Active CN209542057U (en) | 2018-09-12 | 2018-09-12 | A kind of digital projection formula vertometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209542057U (en) |
-
2018
- 2018-09-12 CN CN201821491362.5U patent/CN209542057U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191108 Address after: 215000 Songshan Road 428, Suzhou High-tech Zone, Jiangsu Province Patentee after: Suzhou schwad Photoelectric Technology Co., Ltd Address before: 215000 Songshan Road 428, Suzhou High-tech Zone, Jiangsu Province Patentee before: Suzhou Yazheng Optical Co., Ltd. |