CN201194040Y - Digital projector apparatus regulating focal distance using gear set combination - Google Patents
Digital projector apparatus regulating focal distance using gear set combination Download PDFInfo
- Publication number
- CN201194040Y CN201194040Y CNU2008200043187U CN200820004318U CN201194040Y CN 201194040 Y CN201194040 Y CN 201194040Y CN U2008200043187 U CNU2008200043187 U CN U2008200043187U CN 200820004318 U CN200820004318 U CN 200820004318U CN 201194040 Y CN201194040 Y CN 201194040Y
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- gear
- focusing
- homophony
- burnt
- auxiliary
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Abstract
The utility model relates to a digital projection equipment focusing with gear train combination, which comprises a focusing gear train, a focusing rack (5) and a lens (6). The focusing rack (5) is fixed with the lens (6); the focusing gear train gears with the rack (5) to drive it move and to change the focus; the focusing gear train comprises a main focusing gear (2), an ancillary focusing gear (3) for fine adjustment to the focus of the digital projection equipment; the outer diameter of the ancillary focusing gear (3) is smaller than that of the main focusing gear (2). The equipment in the utility satisfies the user demand for fine adjustment to the focus.
Description
Technical field
The utility model relates to a kind of gear set that utilizes in conjunction with the digital projection equipment of adjusting focal length.Specifically, be a kind of digital projection equipment that utilizes big pinion wheel in conjunction with the adjustment focal length.
Background technology
At present, the major part on the market possesses the digital equipment of projection lens, and as shown in Figure 1, general using focusing gear (1) directly drives the focusing tooth bar (5) that fixes with camera lens (6) and carries out focus adjustment.Since simple in structure, make that the man-machine structure operation of knob is unfriendly; And also trickle inadequately to the focus adjustment of projection lens, be not suitable for the demand that hand-held projector equipment focal length needs fine adjustments.
Summary of the invention
The utility model is trickle inadequately for overcoming in the above-mentioned present technology projection lens focus adjustment, provides a kind of gear set that utilizes in conjunction with the digital projection equipment of adjusting focal length.
The technical scheme that the utility model adopted is: a kind of gear set that utilizes comprises in conjunction with the digital projection equipment of adjusting focal length: focusing gear set, focusing tooth bar (5), camera lens (6).Focusing tooth bar (5) is fixedly connected on the camera lens (6), and focusing gear set and focusing tooth bar (5) engagement drive focusing tooth bar (5) motion to adjust the change of camera lens (6) focal length.Except that the burnt gear of homophony (2), comprise that also at least one auxiliary focusing gear (3) is used for logarithmic code projector equipment focal length and finely tunes in the focusing gear set, the external diameter of auxiliary focusing gear (3) is less than the external diameter of the burnt gear of homophony (2).
Preferably, the focusing gear set comprises burnt gear (2) of homophony and auxiliary focusing gear (3), the external diameter of the burnt gear of homophony (2) is greater than auxiliary focusing gear (3), the burnt gear of homophony (2) is fixed on the projector casing, with focusing tooth bar (5) engagement, the burnt gear of homophony (2) is fixed on the projector casing with auxiliary focusing gear (3) engagement, the axle of auxiliary focusing gear (3).
Preferably, the focusing gear set comprises the burnt gear (2) of homophony, auxiliary focusing gear (3) and auxiliary focusing gear (4), wherein the burnt gear of homophony (2) is fixed on the projector casing, and with the focusing tooth bar (5) engagement, auxiliary focusing gear (4) is coaxial with the burnt gear of homophony (2), the external diameter of auxiliary focusing gear (4) is less than the external diameter of the burnt gear of homophony (2), another auxiliary focusing gear (3) and auxiliary focusing gear (4) engagement, the axle of auxiliary focusing gear (3) is fixed on the casing, and the external diameter of auxiliary focusing gear (3) is less than the external diameter of auxiliary focusing gear (4).
Preferably, auxiliary focusing gear (3) when press the centre, system can preserve current focal length state and switch to set the special applications state.
The beneficial effects of the utility model are, to camera lens (6) when focal length is adjusted, the user can not only drive focusing tooth bar (5) by the burnt gear of homophony (2) and carry out focus adjustment, can also drive the focusing of focusing tooth bar (5) by auxiliary focusing gear (3) and finely tune.
When the user presses burnt gear (2) of homophony or auxiliary focusing gear (3), system preserves under the situation of current focal length state parameter, switches to other patterns that set from the focus adjustment state.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of background technology
Fig. 2 is the utility model embodiment 1 structural representation
Fig. 3 is the utility model embodiment 2 structural representations
(1) is the focusing gear among the figure, and (2) are the burnt gears of homophony, and (3) are auxiliary focusing gears, and (4) are that auxiliary focusing gear, (5) are the focusing tooth bars, and (6) are camera lenses
Embodiment
As shown in Figure 1, the digital equipment general using focusing gear (1) that possesses projection lens of the major part on the market directly drives the focusing tooth bar (5) that fixes with camera lens (6) and carries out focus adjustment.Since simple in structure, make that the man-machine structure operation of knob is unfriendly; And also trickle inadequately to the focus adjustment of projection lens, be not suitable for the demand that hand-held projector equipment focal length needs fine adjustments.
Fig. 2 is the utility model embodiment 1 structural representation.Focusing tooth bar (5) is fixedly connected on the camera lens (6), and focusing gear set and focusing tooth bar (5) engagement drive focusing tooth bar (5) motion to adjust the change of camera lens (6) focal length.Except that the burnt gear of homophony (2), comprise that also an auxiliary focusing gear (3) is used for logarithmic code projector equipment focal length and finely tunes in the focusing gear set.When the user operates, not only can drive focusing tooth bar (5) camera lens (6) focal length is regulated by regulating the burnt gear (2) of homophony, simultaneously, can drive focusing tooth bar (5) camera lens (6) focal length is finely tuned by regulating auxiliary focusing gear (3).
Fig. 3 is the utility model embodiment 2 structural representations.The focusing gear set comprises the burnt gear (2) of homophony, auxiliary focusing gear (3) and auxiliary focusing gear (4), wherein the burnt gear of homophony (2) is fixed on the projector casing, and with the focusing tooth bar (5) engagement, auxiliary focusing gear (4) is coaxial with the burnt gear of homophony (2), the external diameter of auxiliary focusing gear (4) is less than the external diameter of the burnt gear of homophony (2), another auxiliary focusing gear (3) and auxiliary focusing gear (4) engagement, the axle of auxiliary focusing gear (3) is fixed on the casing, and the external diameter of auxiliary focusing gear (3) is less than the external diameter of auxiliary focusing gear (4).When the user operates, not only can drive focusing tooth bar (5) camera lens (6) focal length is regulated by regulating the burnt gear (2) of homophony, simultaneously, can drive focusing tooth bar (5) lens focus is finely tuned by regulating auxiliary focusing gear (3).Embodiment 2 comparative examples' 1 advantage is: adopted two auxiliary focusing gears (3) and (4) among the embodiment 2, because burnt gear (2) coaxial cooperation of auxiliary focusing gear (4) and homophony, therefore, the tooth pitch of auxiliary focusing gear (4) can be selected arbitrarily flexibly, the tooth pitch of auxiliary focusing gear (3) is identical with auxiliary focusing gear (4), so the tooth pitch and the external diameter choice of auxiliary focusing gear (3) are bigger.
Simultaneously, when the user presses burnt gear (2) of homophony and the auxiliary gear (3) of focusing, system preserves under the situation of current focal length state parameter, switches to other patterns that set from the focus adjustment state.For example switch to mouse mode, projected picture shows movably mouse, and this mouse can come moving direction as knob by adjusting gear.
Being preferred embodiment of the present invention only below, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. one kind is utilized gear set in conjunction with the digital projection equipment of adjusting focal length, comprise: focusing gear set, focusing tooth bar (5), camera lens (6), focusing tooth bar (5) is fixed on the camera lens (6), focusing gear set and focusing tooth bar (5) engagement, drive focusing tooth bar (5) motion to adjust the change of camera lens (6) focal length, it is characterized in that: remove homophony Jiao's gear (2) in the focusing gear set, comprise that also at least one auxiliary focusing gear (3) is used for logarithmic code projector equipment focal length and finely tunes, the external diameter of auxiliary focusing gear (3) is less than the external diameter of the burnt gear of homophony (2).
2. utilize gear set according to claim 1 in conjunction with the digital projection equipment of adjusting focal length, it is characterized in that: the focusing gear set comprises burnt gear (2) of homophony and auxiliary focusing gear (3), the external diameter of the burnt gear of homophony (2) is greater than auxiliary focusing gear (3), the burnt gear of homophony (2) is fixed on the projector casing, with focusing tooth bar (5) engagement, the burnt gear of homophony (2) is fixed on the projector casing with auxiliary focusing gear (3) engagement, the axle of auxiliary focusing gear (3).
3. utilize gear set according to claim 1 in conjunction with the digital projection equipment of adjusting focal length, it is characterized in that: the focusing gear set is by the burnt gear (2) of homophony, auxiliary focusing gear (4), auxiliary focusing gear (3) is formed, wherein the burnt gear of homophony (2) is fixed on the projector casing, and with the focusing tooth bar (5) engagement, auxiliary focusing gear (4) is coaxial with the burnt gear of homophony (2), the external diameter of gear (4) is less than the external diameter of gear (2), another auxiliary focusing gear (3) and gear (4) engagement, the axle of gear (3) is fixed on the casing, and the external diameter of focusing gear (3) is less than the external diameter of focusing gear (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200043187U CN201194040Y (en) | 2008-01-29 | 2008-01-29 | Digital projector apparatus regulating focal distance using gear set combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200043187U CN201194040Y (en) | 2008-01-29 | 2008-01-29 | Digital projector apparatus regulating focal distance using gear set combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201194040Y true CN201194040Y (en) | 2009-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200043187U Expired - Fee Related CN201194040Y (en) | 2008-01-29 | 2008-01-29 | Digital projector apparatus regulating focal distance using gear set combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201194040Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186017A (en) * | 2011-04-29 | 2011-09-14 | 广州中朗润业数码科技有限公司 | Manual focusing infrared camera |
| CN102890323A (en) * | 2011-07-21 | 2013-01-23 | 佳能企业股份有限公司 | Image capturing device and lens module thereof |
| CN104580902A (en) * | 2014-12-29 | 2015-04-29 | 北京中星微电子有限公司 | Mining lens focusing equipment and method |
| CN105842966A (en) * | 2016-06-14 | 2016-08-10 | 刘玲 | Intelligent adjustable projector |
| CN106151427A (en) * | 2015-03-31 | 2016-11-23 | 比亚迪股份有限公司 | Projector and focal length setting mechanism thereof |
-
2008
- 2008-01-29 CN CNU2008200043187U patent/CN201194040Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186017A (en) * | 2011-04-29 | 2011-09-14 | 广州中朗润业数码科技有限公司 | Manual focusing infrared camera |
| CN102890323A (en) * | 2011-07-21 | 2013-01-23 | 佳能企业股份有限公司 | Image capturing device and lens module thereof |
| CN102890323B (en) * | 2011-07-21 | 2015-04-15 | 佳能企业股份有限公司 | Image capturing device and lens module thereof |
| CN104580902A (en) * | 2014-12-29 | 2015-04-29 | 北京中星微电子有限公司 | Mining lens focusing equipment and method |
| CN104580902B (en) * | 2014-12-29 | 2020-02-18 | 中星技术股份有限公司 | Mining lens focusing device and method |
| CN106151427A (en) * | 2015-03-31 | 2016-11-23 | 比亚迪股份有限公司 | Projector and focal length setting mechanism thereof |
| CN106151427B (en) * | 2015-03-31 | 2019-09-03 | 比亚迪股份有限公司 | Projector and its focal length setting mechanism |
| CN105842966A (en) * | 2016-06-14 | 2016-08-10 | 刘玲 | Intelligent adjustable projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20140129 |